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ChangeLog revision 1.1.1.22
      1  1.1.1.22  mrg 2023-07-07  Release Manager
      2  1.1.1.22  mrg 
      3  1.1.1.22  mrg 	* GCC 10.5.0 released.
      4  1.1.1.22  mrg 
      5  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
      6  1.1.1.22  mrg 
      7  1.1.1.22  mrg 	Backported from master:
      8  1.1.1.22  mrg 	2021-10-11  Jonathan Wakely  <jwakely (a] redhat.com>
      9  1.1.1.22  mrg 
     10  1.1.1.22  mrg 	* testsuite/18_support/numeric_limits/lowest.cc: Use
     11  1.1.1.22  mrg 	numeric_limits<T>::is_integer instead of is_integral<T>::value.
     12  1.1.1.22  mrg 
     13  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
     14  1.1.1.22  mrg 
     15  1.1.1.22  mrg 	Backported from master:
     16  1.1.1.22  mrg 	2023-06-01  Jonathan Wakely  <jwakely (a] redhat.com>
     17  1.1.1.22  mrg 
     18  1.1.1.22  mrg 	* doc/xml/manual/evolution.xml: Document removal of implicit
     19  1.1.1.22  mrg 	allocator rebinding extensions in strict mode and for C++20.
     20  1.1.1.22  mrg 	* doc/html/*: Regenerate.
     21  1.1.1.22  mrg 
     22  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
     23  1.1.1.22  mrg 
     24  1.1.1.22  mrg 	Backported from master:
     25  1.1.1.22  mrg 	2022-12-16  Jonathan Wakely  <jwakely (a] redhat.com>
     26  1.1.1.22  mrg 
     27  1.1.1.22  mrg 	PR libstdc++/108118
     28  1.1.1.22  mrg 	* include/bits/shared_ptr_base.h (weak_ptr::operator=):
     29  1.1.1.22  mrg 	Implement as move-and-swap exactly as specified in the standard.
     30  1.1.1.22  mrg 	* testsuite/20_util/weak_ptr/cons/self_move.cc: New test.
     31  1.1.1.22  mrg 
     32  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
     33  1.1.1.22  mrg 
     34  1.1.1.22  mrg 	Backported from master:
     35  1.1.1.22  mrg 	2020-06-17  Jonathan Wakely  <jwakely (a] redhat.com>
     36  1.1.1.22  mrg 
     37  1.1.1.22  mrg 	PR libstdc++/94540
     38  1.1.1.22  mrg 	* include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
     39  1.1.1.22  mrg 	Construct the first value at *__first instead of on the stack.
     40  1.1.1.22  mrg 	(__uninitialized_default_n_1<true>): Likewise.
     41  1.1.1.22  mrg 	Improve comments on several of the non-standard algorithms.
     42  1.1.1.22  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_default/94540.cc:
     43  1.1.1.22  mrg 	New test.
     44  1.1.1.22  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_default_n/94540.cc:
     45  1.1.1.22  mrg 	New test.
     46  1.1.1.22  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_value_construct/94540.cc:
     47  1.1.1.22  mrg 	New test.
     48  1.1.1.22  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/94540.cc:
     49  1.1.1.22  mrg 	New test.
     50  1.1.1.22  mrg 	* testsuite/23_containers/vector/cons/94540.cc: New test.
     51  1.1.1.22  mrg 
     52  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
     53  1.1.1.22  mrg 
     54  1.1.1.22  mrg 	Backported from master:
     55  1.1.1.22  mrg 	2022-08-22  Jonathan Wakely  <jwakely (a] redhat.com>
     56  1.1.1.22  mrg 
     57  1.1.1.22  mrg 	PR libstdc++/106607
     58  1.1.1.22  mrg 	* include/bits/regex_compiler.tcc (_Compiler::_M_cur_int_value):
     59  1.1.1.22  mrg 	Use built-ins to check for integer overflow in back-reference
     60  1.1.1.22  mrg 	number.
     61  1.1.1.22  mrg 	* testsuite/28_regex/basic_regex/106607.cc: New test.
     62  1.1.1.22  mrg 
     63  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
     64  1.1.1.22  mrg 
     65  1.1.1.22  mrg 	Backported from master:
     66  1.1.1.22  mrg 	2021-09-28  Jonathan Wakely  <jwakely (a] redhat.com>
     67  1.1.1.22  mrg 
     68  1.1.1.22  mrg 	* include/bits/regex.h (basic_regex, swap): Add noexcept to
     69  1.1.1.22  mrg 	non-throwing functions.
     70  1.1.1.22  mrg 	* include/bits/regex_automaton.h (_State_base, _State)
     71  1.1.1.22  mrg 	(_NFA_base): Likewise.
     72  1.1.1.22  mrg 	* include/bits/regex_compiler.h (_Compiler): Likewise.
     73  1.1.1.22  mrg 	* include/bits/regex_error.h (regex_error::code()): Likewise.
     74  1.1.1.22  mrg 	* include/bits/regex_scanner.h (_Scanner): Likewise.
     75  1.1.1.22  mrg 
     76  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
     77  1.1.1.22  mrg 
     78  1.1.1.22  mrg 	Backported from master:
     79  1.1.1.22  mrg 	2021-12-14  Jonathan Wakely  <jwakely (a] redhat.com>
     80  1.1.1.22  mrg 
     81  1.1.1.22  mrg 	PR libstdc++/102447
     82  1.1.1.22  mrg 	* include/bits/regex_compiler.h (_Compiler::_BracketState): New
     83  1.1.1.22  mrg 	class.
     84  1.1.1.22  mrg 	(_Compiler::_BrackeyMatcher): New alias template.
     85  1.1.1.22  mrg 	(_Compiler::_M_expression_term): Change pair<bool, CharT>
     86  1.1.1.22  mrg 	parameter to _BracketState. Process first character for
     87  1.1.1.22  mrg 	ECMAScript syntax as well as POSIX.
     88  1.1.1.22  mrg 	* include/bits/regex_compiler.tcc
     89  1.1.1.22  mrg 	(_Compiler::_M_insert_bracket_matcher): Pass _BracketState.
     90  1.1.1.22  mrg 	(_Compiler::_M_expression_term): Use _BracketState to store
     91  1.1.1.22  mrg 	state between calls. Improve handling of dashes in ranges.
     92  1.1.1.22  mrg 	* testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc:
     93  1.1.1.22  mrg 	Add more tests for ranges containing dashes. Check invalid
     94  1.1.1.22  mrg 	ranges with character class at the beginning.
     95  1.1.1.22  mrg 
     96  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
     97  1.1.1.22  mrg 
     98  1.1.1.22  mrg 	Backported from master:
     99  1.1.1.22  mrg 	2021-09-29  Jonathan Wakely  <jwakely (a] redhat.com>
    100  1.1.1.22  mrg 
    101  1.1.1.22  mrg 	* include/bits/regex_compiler.h (_Compiler::_S_validate): New
    102  1.1.1.22  mrg 	function.
    103  1.1.1.22  mrg 	* include/bits/regex_compiler.tcc (_Compiler::_Compiler): Use
    104  1.1.1.22  mrg 	_S_validate to check flags.
    105  1.1.1.22  mrg 	* include/bits/regex_error.h (_S_grammar): New error code for
    106  1.1.1.22  mrg 	internal use.
    107  1.1.1.22  mrg 	* testsuite/28_regex/basic_regex/ctors/grammar.cc: New test.
    108  1.1.1.22  mrg 
    109  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
    110  1.1.1.22  mrg 
    111  1.1.1.22  mrg 	Backported from master:
    112  1.1.1.22  mrg 	2021-09-28  Jonathan Wakely  <jwakely (a] redhat.com>
    113  1.1.1.22  mrg 
    114  1.1.1.22  mrg 	* include/bits/regex_compiler.tcc: Add line break in empty while
    115  1.1.1.22  mrg 	statement.
    116  1.1.1.22  mrg 	* include/bits/regex_executor.tcc: Avoid unused parameter
    117  1.1.1.22  mrg 	warning.
    118  1.1.1.22  mrg 
    119  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
    120  1.1.1.22  mrg 
    121  1.1.1.22  mrg 	Backported from master:
    122  1.1.1.22  mrg 	2021-12-13  Jonathan Wakely  <jwakely (a] redhat.com>
    123  1.1.1.22  mrg 
    124  1.1.1.22  mrg 	PR libstdc++/103664
    125  1.1.1.22  mrg 	* include/bits/regex.h (__regex_replace): Declare.
    126  1.1.1.22  mrg 	(regex_replace): Use it.
    127  1.1.1.22  mrg 	* include/bits/regex.tcc (__regex_replace): Replace regex_replace
    128  1.1.1.22  mrg 	definition with __regex_replace.
    129  1.1.1.22  mrg 	* testsuite/28_regex/algorithms/regex_replace/char/103664.cc: New test.
    130  1.1.1.22  mrg 
    131  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
    132  1.1.1.22  mrg 
    133  1.1.1.22  mrg 	Backported from master:
    134  1.1.1.22  mrg 	2021-09-29  Jonathan Wakely  <jwakely (a] redhat.com>
    135  1.1.1.22  mrg 
    136  1.1.1.22  mrg 	PR libstdc++/84110
    137  1.1.1.22  mrg 	* include/bits/regex_error.h (regex_constants::_S_null): New
    138  1.1.1.22  mrg 	error code for internal use.
    139  1.1.1.22  mrg 	* include/bits/regex_scanner.tcc (_Scanner::_M_scan_normal()):
    140  1.1.1.22  mrg 	Check for null character.
    141  1.1.1.22  mrg 	* testsuite/28_regex/basic_regex/84110.cc: New test.
    142  1.1.1.22  mrg 
    143  1.1.1.22  mrg 2023-06-23  Jonathan Wakely  <jwakely (a] redhat.com>
    144  1.1.1.22  mrg 
    145  1.1.1.22  mrg 	Backported from master:
    146  1.1.1.22  mrg 	2020-09-11  Jonathan Wakely  <jwakely (a] redhat.com>
    147  1.1.1.22  mrg 
    148  1.1.1.22  mrg 	* include/bits/regex_error.h (__throw_regex_error): Fix
    149  1.1.1.22  mrg 	parameter declaration and use reserved attribute names.
    150  1.1.1.22  mrg 
    151  1.1.1.22  mrg 2023-06-23  Christophe Lyon  <christophe.lyon (a] linaro.org>
    152  1.1.1.22  mrg 
    153  1.1.1.22  mrg 	Backported from master:
    154  1.1.1.22  mrg 	2020-09-11  Christophe Lyon  <christophe.lyon (a] linaro.org>
    155  1.1.1.22  mrg 
    156  1.1.1.22  mrg 	* include/bits/regex_error.h: Avoid warning with -fno-exceptions.
    157  1.1.1.22  mrg 
    158  1.1.1.22  mrg 2023-05-21  Iain Sandoe  <iain (a] sandoe.co.uk>
    159  1.1.1.22  mrg 
    160  1.1.1.22  mrg 	* include/bits/fs_path.h: Rename __null_terminated to __nul_terminated
    161  1.1.1.22  mrg 	to avoid colliding with a macro in Darwin system headers.
    162  1.1.1.22  mrg 
    163  1.1.1.22  mrg 2023-05-03  Jonathan Wakely  <jwakely (a] redhat.com>
    164  1.1.1.22  mrg 
    165  1.1.1.22  mrg 	PR libstdc++/105844
    166  1.1.1.22  mrg 	* include/std/numeric (lcm): Ensure out-of-range result is
    167  1.1.1.22  mrg 	detected in constant evaluation.
    168  1.1.1.22  mrg 	* testsuite/26_numerics/lcm/105844.cc: Adjust dg-error string.
    169  1.1.1.22  mrg 
    170  1.1.1.22  mrg 2023-05-03  Jonathan Wakely  <jwakely (a] redhat.com>
    171  1.1.1.22  mrg 
    172  1.1.1.22  mrg 	Backported from master:
    173  1.1.1.22  mrg 	2022-06-10  Jonathan Wakely  <jwakely (a] redhat.com>
    174  1.1.1.22  mrg 
    175  1.1.1.22  mrg 	PR libstdc++/105844
    176  1.1.1.22  mrg 	* include/experimental/numeric (experimental::gcd): Simplify
    177  1.1.1.22  mrg 	assertions. Use __abs_r instead of __absu.
    178  1.1.1.22  mrg 	(experimental::lcm): Likewise. Remove use of __detail::__lcm so
    179  1.1.1.22  mrg 	overflow can be detected.
    180  1.1.1.22  mrg 	* include/std/numeric (__detail::__absu): Rename to __abs_r and
    181  1.1.1.22  mrg 	change to allow signed result type, so overflow can be detected.
    182  1.1.1.22  mrg 	(__detail::__lcm): Remove.
    183  1.1.1.22  mrg 	(gcd): Simplify assertions. Use __abs_r instead of __absu.
    184  1.1.1.22  mrg 	(lcm): Likewise. Remove use of __detail::__lcm so overflow can
    185  1.1.1.22  mrg 	be detected.
    186  1.1.1.22  mrg 	* testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error lines.
    187  1.1.1.22  mrg 	* testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
    188  1.1.1.22  mrg 	* testsuite/26_numerics/gcd/105844.cc: New test.
    189  1.1.1.22  mrg 	* testsuite/26_numerics/lcm/105844.cc: New test.
    190  1.1.1.22  mrg 
    191  1.1.1.22  mrg 2023-05-03  Jonathan Wakely  <jwakely (a] redhat.com>
    192  1.1.1.22  mrg 
    193  1.1.1.22  mrg 	Backported from master:
    194  1.1.1.22  mrg 	2023-04-28  Jonathan Wakely  <jwakely (a] redhat.com>
    195  1.1.1.22  mrg 
    196  1.1.1.22  mrg 	* doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
    197  1.1.1.22  mrg 	from header paths.
    198  1.1.1.22  mrg 
    199  1.1.1.22  mrg 2023-04-28  Jonathan Wakely  <jwakely (a] redhat.com>
    200  1.1.1.22  mrg 
    201  1.1.1.22  mrg 	Backported from master:
    202  1.1.1.22  mrg 	2020-11-24  Jonathan Wakely  <jwakely (a] redhat.com>
    203  1.1.1.22  mrg 
    204  1.1.1.22  mrg 	PR libstdc++/67791
    205  1.1.1.22  mrg 	* src/c++11/thread.cc (thread::_M_start_thread(_State_ptr, void (*)())):
    206  1.1.1.22  mrg 	Check that gthreads is available before calling __gthread_create.
    207  1.1.1.22  mrg 
    208  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    209  1.1.1.22  mrg 
    210  1.1.1.22  mrg 	Backported from master:
    211  1.1.1.22  mrg 	2023-04-04  Jonathan Wakely  <jwakely (a] redhat.com>
    212  1.1.1.22  mrg 
    213  1.1.1.22  mrg 	* doc/xml/manual/extensions.xml: Remove std::bad_exception from
    214  1.1.1.22  mrg 	example program.
    215  1.1.1.22  mrg 	* doc/html/manual/ext_demangling.html: Regenerate.
    216  1.1.1.22  mrg 
    217  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    218  1.1.1.22  mrg 
    219  1.1.1.22  mrg 	Backported from master:
    220  1.1.1.22  mrg 	2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    221  1.1.1.22  mrg 
    222  1.1.1.22  mrg 	* doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
    223  1.1.1.22  mrg 	HTML docs.
    224  1.1.1.22  mrg 	* include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
    225  1.1.1.22  mrg 	from doxygen docs.
    226  1.1.1.22  mrg 	* include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
    227  1.1.1.22  mrg 	Likewise.
    228  1.1.1.22  mrg 	* include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
    229  1.1.1.22  mrg 	Likewise.
    230  1.1.1.22  mrg 	* include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
    231  1.1.1.22  mrg 	Likewise.
    232  1.1.1.22  mrg 	* include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
    233  1.1.1.22  mrg 	(_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
    234  1.1.1.22  mrg 	(_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
    235  1.1.1.22  mrg 	(_DEFINE_BINARY_OPERATOR): Likewise.
    236  1.1.1.22  mrg 
    237  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    238  1.1.1.22  mrg 
    239  1.1.1.22  mrg 	Backported from master:
    240  1.1.1.22  mrg 	2022-10-28  Jonathan Wakely  <jwakely (a] redhat.com>
    241  1.1.1.22  mrg 
    242  1.1.1.22  mrg 	* include/bits/fs_path.h (path::filename()): Fix dangling
    243  1.1.1.22  mrg 	reference.
    244  1.1.1.22  mrg 
    245  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    246  1.1.1.22  mrg 
    247  1.1.1.22  mrg 	PR libstdc++/109064
    248  1.1.1.22  mrg 	* python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
    249  1.1.1.22  mrg 	Remove self-recursion in __init__. Add missing _supports.
    250  1.1.1.22  mrg 	* testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
    251  1.1.1.22  mrg 	and unique().
    252  1.1.1.22  mrg 
    253  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    254  1.1.1.22  mrg 
    255  1.1.1.22  mrg 	Backported from master:
    256  1.1.1.22  mrg 	2023-02-28  Jonathan Wakely  <jwakely (a] redhat.com>
    257  1.1.1.22  mrg 
    258  1.1.1.22  mrg 	PR libstdc++/108952
    259  1.1.1.22  mrg 	* include/std/memory (uses_allocator_construction_args):
    260  1.1.1.22  mrg 	Implement LWG 3527.
    261  1.1.1.22  mrg 	* testsuite/20_util/pair/astuple/get-2.cc: New test.
    262  1.1.1.22  mrg 	* testsuite/20_util/scoped_allocator/108952.cc: New test.
    263  1.1.1.22  mrg 	* testsuite/20_util/uses_allocator/lwg3527.cc: New test.
    264  1.1.1.22  mrg 
    265  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    266  1.1.1.22  mrg 
    267  1.1.1.22  mrg 	Backported from master:
    268  1.1.1.22  mrg 	2023-02-16  Jonathan Wakely  <jwakely (a] redhat.com>
    269  1.1.1.22  mrg 
    270  1.1.1.22  mrg 	* include/experimental/optional: Fix header name in comment.
    271  1.1.1.22  mrg 
    272  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    273  1.1.1.22  mrg 
    274  1.1.1.22  mrg 	Backported from master:
    275  1.1.1.22  mrg 	2022-07-20  Jonathan Wakely  <jwakely (a] redhat.com>
    276  1.1.1.22  mrg 
    277  1.1.1.22  mrg 	PR libstdc++/100823
    278  1.1.1.22  mrg 	* include/bits/stl_iterator.h (common_iterator): Define move
    279  1.1.1.22  mrg 	constructor and move assignment operator.
    280  1.1.1.22  mrg 	(common_iterator::_M_assign): New function implementing
    281  1.1.1.22  mrg 	assignment.
    282  1.1.1.22  mrg 	(common_iterator::operator=): Use _M_assign.
    283  1.1.1.22  mrg 	(common_iterator::_S_valueless): New constant.
    284  1.1.1.22  mrg 	* testsuite/24_iterators/common_iterator/100823.cc: New test.
    285  1.1.1.22  mrg 
    286  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    287  1.1.1.22  mrg 
    288  1.1.1.22  mrg 	Backported from master:
    289  1.1.1.22  mrg 	2022-07-20  Jonathan Wakely  <jwakely (a] redhat.com>
    290  1.1.1.22  mrg 
    291  1.1.1.22  mrg 	* include/bits/stl_iterator.h (common_iterator): Fix incorrect
    292  1.1.1.22  mrg 	uses of is_nothrow_assignable_v. Fix inconsistent constraints on
    293  1.1.1.22  mrg 	friend declaration. Do not move argument in copy constructor.
    294  1.1.1.22  mrg 	* testsuite/24_iterators/common_iterator/1.cc: Check for
    295  1.1.1.22  mrg 	noexcept constructibnle/assignable.
    296  1.1.1.22  mrg 
    297  1.1.1.22  mrg 2023-04-27  Jonathan Wakely  <jwakely (a] redhat.com>
    298  1.1.1.22  mrg 
    299  1.1.1.22  mrg 	Backported from master:
    300  1.1.1.22  mrg 	2022-11-23  Jonathan Wakely  <jwakely (a] redhat.com>
    301  1.1.1.22  mrg 
    302  1.1.1.22  mrg 	PR libstdc++/107814
    303  1.1.1.22  mrg 	* testsuite/experimental/filesystem/iterators/error_reporting.cc:
    304  1.1.1.22  mrg 	Use a static buffer with space after it.
    305  1.1.1.22  mrg 
    306  1.1.1.22  mrg 2023-03-16  Jonathan Wakely  <jwakely (a] redhat.com>
    307  1.1.1.22  mrg 
    308  1.1.1.22  mrg 	Backported from master:
    309  1.1.1.22  mrg 	2023-02-02  Jonathan Wakely  <jwakely (a] redhat.com>
    310  1.1.1.22  mrg 
    311  1.1.1.22  mrg 	PR libstdc++/108636
    312  1.1.1.22  mrg 	* include/bits/fs_path.h (path::path(string_view, _Type))
    313  1.1.1.22  mrg 	(path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
    314  1.1.1.22  mrg 	definitions to ...
    315  1.1.1.22  mrg 	* src/c++17/fs_path.cc: ... here.
    316  1.1.1.22  mrg 	* testsuite/27_io/filesystem/path/108636.cc: New test.
    317  1.1.1.22  mrg 
    318  1.1.1.22  mrg 2022-11-08  Jonathan Wakely  <jwakely (a] redhat.com>
    319  1.1.1.22  mrg 
    320  1.1.1.22  mrg 	Backported from master:
    321  1.1.1.22  mrg 	2022-11-08  Jonathan Wakely  <jwakely (a] redhat.com>
    322  1.1.1.22  mrg 
    323  1.1.1.22  mrg 	* doc/xml/authors.xml: Remove empty author element.
    324  1.1.1.22  mrg 	* doc/xml/manual/spine.xml: Likewise.
    325  1.1.1.22  mrg 	* doc/html/*: Regenerate.
    326  1.1.1.22  mrg 
    327  1.1.1.22  mrg 2022-08-03  Jonathan Wakely  <jwakely (a] redhat.com>
    328  1.1.1.22  mrg 
    329  1.1.1.22  mrg 	Backported from master:
    330  1.1.1.22  mrg 	2021-08-31  Jonathan Wakely  <jwakely (a] redhat.com>
    331  1.1.1.22  mrg 
    332  1.1.1.22  mrg 	PR libstdc++/98421
    333  1.1.1.22  mrg 	* include/std/span (span(Iter, size_type), span(Iter, Iter)):
    334  1.1.1.22  mrg 	Add valid range checks.
    335  1.1.1.22  mrg 	* testsuite/23_containers/span/cons_1_assert_neg.cc: New test.
    336  1.1.1.22  mrg 	* testsuite/23_containers/span/cons_2_assert_neg.cc: New test.
    337  1.1.1.22  mrg 
    338  1.1.1.22  mrg 2022-08-03  Jonathan Wakely  <jwakely (a] redhat.com>
    339  1.1.1.22  mrg 
    340  1.1.1.22  mrg 	* include/bits/list.tcc (list::merge) [!USE_CXX11_ABI]: Remove
    341  1.1.1.22  mrg 	call to size() and try-catch block.
    342  1.1.1.22  mrg 
    343  1.1.1.22  mrg 2022-08-03  Tim Adye  <Tim.Adye (a] cern.ch>
    344  1.1.1.22  mrg 
    345  1.1.1.22  mrg 	Backported from master:
    346  1.1.1.22  mrg 	2021-06-04  Tim Adye  <Tim.Adye (a] cern.ch>
    347  1.1.1.22  mrg 
    348  1.1.1.22  mrg 	* include/std/any (any::_Manager::_S_access): New static
    349  1.1.1.22  mrg 	function to access the contained value.
    350  1.1.1.22  mrg 	(any::emplace, __any_caster): Use _S_access member of the
    351  1.1.1.22  mrg 	manager type.
    352  1.1.1.22  mrg 
    353  1.1.1.22  mrg 2022-08-03  Jonathan Wakely  <jwakely (a] redhat.com>
    354  1.1.1.22  mrg 
    355  1.1.1.22  mrg 	Backported from master:
    356  1.1.1.22  mrg 	2021-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
    357  1.1.1.22  mrg 
    358  1.1.1.22  mrg 	* include/std/ranges (subrange(i, s, n)): Remove assertion.
    359  1.1.1.22  mrg 	* testsuite/std/ranges/subrange/constexpr.cc: New test.
    360  1.1.1.22  mrg 
    361  1.1.1.22  mrg 2022-08-03  Jonathan Wakely  <jwakely (a] redhat.com>
    362  1.1.1.22  mrg 
    363  1.1.1.22  mrg 	Backported from master:
    364  1.1.1.22  mrg 	2021-11-10  Jonathan Wakely  <jwakely (a] redhat.com>
    365  1.1.1.22  mrg 
    366  1.1.1.22  mrg 	PR libstdc++/100748
    367  1.1.1.22  mrg 	PR libstdc++/103133
    368  1.1.1.22  mrg 	* config/os/gnu-linux/os_defines.h (_GLIBCXX_GTHREAD_USE_WEAK):
    369  1.1.1.22  mrg 	Define for glibc 2.34 and later.
    370  1.1.1.22  mrg 
    371  1.1.1.22  mrg 2022-07-23  Jonathan Wakely  <jwakely (a] redhat.com>
    372  1.1.1.22  mrg 
    373  1.1.1.22  mrg 	Backported from master:
    374  1.1.1.22  mrg 	2022-07-01  Jonathan Wakely  <jwakely (a] redhat.com>
    375  1.1.1.22  mrg 
    376  1.1.1.22  mrg 	PR libstdc++/106162
    377  1.1.1.22  mrg 	* include/Makefile.am (largefile-config.h): Add
    378  1.1.1.22  mrg 	stamp-${host_alias} prerequisite.
    379  1.1.1.22  mrg 	* include/Makefile.in: Regenerate.
    380  1.1.1.22  mrg 
    381  1.1.1.22  mrg 2022-07-23  Jonathan Wakely  <jwakely (a] redhat.com>
    382  1.1.1.22  mrg 
    383  1.1.1.22  mrg 	Backported from master:
    384  1.1.1.22  mrg 	2021-11-05  Jonathan Wakely  <jwakely (a] redhat.com>
    385  1.1.1.22  mrg 
    386  1.1.1.22  mrg 	* include/bits/range_access.h (begin(valarray), end(valarray)):
    387  1.1.1.22  mrg 	Add noexcept.
    388  1.1.1.22  mrg 
    389  1.1.1.22  mrg 2022-07-22  Patrick Palka  <ppalka (a] redhat.com>
    390  1.1.1.22  mrg 
    391  1.1.1.22  mrg 	Backported from master:
    392  1.1.1.22  mrg 	2022-07-22  Patrick Palka  <ppalka (a] redhat.com>
    393  1.1.1.22  mrg 
    394  1.1.1.22  mrg 	PR libstdc++/106320
    395  1.1.1.22  mrg 	* include/std/ranges (single_view): Relax constraints on
    396  1.1.1.22  mrg 	default constructor so as to preserve pre-P2325R3 behavior.
    397  1.1.1.22  mrg 	(filter_view): Likewise.
    398  1.1.1.22  mrg 	(transform_view): Likewise.
    399  1.1.1.22  mrg 	(take_while_view): Likewise.
    400  1.1.1.22  mrg 	(drop_while_view): Likewise.
    401  1.1.1.22  mrg 	* testsuite/std/ranges/adaptors/join.cc (test13): New test.
    402  1.1.1.22  mrg 	* testsuite/std/ranges/p2325.cc: Fix S to be only non default
    403  1.1.1.22  mrg 	constructible and not also non copy constructible.  XFAIL the
    404  1.1.1.22  mrg 	tests that verify a non default constructible functor makes a
    405  1.1.1.22  mrg 	view non default constructible (lines 94, 97 and 98).  XFAIL
    406  1.1.1.22  mrg 	the test that effectively verifies a non default constructible
    407  1.1.1.22  mrg 	element type makes single_view non default constructible (line
    408  1.1.1.22  mrg 	114).
    409  1.1.1.22  mrg 
    410  1.1.1.21  mrg 2022-06-28  Release Manager
    411  1.1.1.21  mrg 
    412  1.1.1.21  mrg 	* GCC 10.4.0 released.
    413  1.1.1.21  mrg 
    414  1.1.1.21  mrg 2022-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
    415  1.1.1.21  mrg 
    416  1.1.1.21  mrg 	Backported from master:
    417  1.1.1.21  mrg 	2022-06-13  Jonathan Wakely  <jwakely (a] redhat.com>
    418  1.1.1.21  mrg 
    419  1.1.1.21  mrg 	* include/std/atomic (__atomic_val_t): Use __type_identity_t
    420  1.1.1.21  mrg 	instead of atomic<T>::value_type, as per LWG 3220.
    421  1.1.1.21  mrg 	* testsuite/29_atomics/atomic/lwg3220.cc: New test.
    422  1.1.1.21  mrg 
    423  1.1.1.21  mrg 2022-06-15  Mark Mentovai  <mark (a] mentovai.com>
    424  1.1.1.21  mrg 
    425  1.1.1.21  mrg 	Backported from master:
    426  1.1.1.21  mrg 	2022-06-13  Mark Mentovai  <mark (a] mentovai.com>
    427  1.1.1.21  mrg 
    428  1.1.1.21  mrg 	* include/experimental/bits/fs_path.h (__detail::__null_terminated):
    429  1.1.1.21  mrg 	Rename to __nul_terminated to avoid colliding with a macro in
    430  1.1.1.21  mrg 	Apple's SDK.
    431  1.1.1.21  mrg 
    432  1.1.1.21  mrg 2022-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
    433  1.1.1.21  mrg 
    434  1.1.1.21  mrg 	Backported from master:
    435  1.1.1.21  mrg 	2022-05-06  Jonathan Wakely  <jwakely (a] redhat.com>
    436  1.1.1.21  mrg 
    437  1.1.1.21  mrg 	PR libstdc++/104731
    438  1.1.1.21  mrg 	* testsuite/27_io/filesystem/iterators/error_reporting.cc:
    439  1.1.1.21  mrg 	Use a trailing char array as storage for dirent::d_name.
    440  1.1.1.21  mrg 
    441  1.1.1.21  mrg 2022-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
    442  1.1.1.21  mrg 
    443  1.1.1.21  mrg 	Backported from master:
    444  1.1.1.21  mrg 	2022-02-02  Jonathan Wakely  <jwakely (a] redhat.com>
    445  1.1.1.21  mrg 
    446  1.1.1.21  mrg 	* testsuite/27_io/filesystem/iterators/error_reporting.cc: Use
    447  1.1.1.21  mrg 	autoconf macro to check whether d_type is present.
    448  1.1.1.21  mrg 	* testsuite/experimental/filesystem/iterators/error_reporting.cc:
    449  1.1.1.21  mrg 	Likewise.
    450  1.1.1.21  mrg 
    451  1.1.1.21  mrg 2022-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
    452  1.1.1.21  mrg 
    453  1.1.1.21  mrg 	Backported from master:
    454  1.1.1.21  mrg 	2022-02-01  Jonathan Wakely  <jwakely (a] redhat.com>
    455  1.1.1.21  mrg 
    456  1.1.1.21  mrg 	* src/c++17/fs_dir.cc (recursive_directory_iterator::increment):
    457  1.1.1.21  mrg 	Reset state to past-the-end iterator on error.
    458  1.1.1.21  mrg 	(fs::recursive_directory_iterator::pop(error_code&)): Likewise.
    459  1.1.1.21  mrg 	(fs::recursive_directory_iterator::pop()): Check _M_dirs before
    460  1.1.1.21  mrg 	it might get reset.
    461  1.1.1.21  mrg 	* src/filesystem/dir.cc (recursive_directory_iterator): Likewise,
    462  1.1.1.21  mrg 	for the TS implementation.
    463  1.1.1.21  mrg 	* testsuite/27_io/filesystem/iterators/error_reporting.cc: New test.
    464  1.1.1.21  mrg 	* testsuite/experimental/filesystem/iterators/error_reporting.cc: New test.
    465  1.1.1.21  mrg 
    466  1.1.1.21  mrg 2022-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
    467  1.1.1.21  mrg 
    468  1.1.1.21  mrg 	* testsuite/23_containers/map/allocator/move_cons.cc: New test.
    469  1.1.1.21  mrg 	* testsuite/23_containers/multimap/allocator/move_cons.cc: New test.
    470  1.1.1.21  mrg 	* testsuite/23_containers/multiset/allocator/move_cons.cc: New test.
    471  1.1.1.21  mrg 	* testsuite/23_containers/set/allocator/move_cons.cc: New test.
    472  1.1.1.21  mrg 
    473  1.1.1.21  mrg 2022-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
    474  1.1.1.21  mrg 
    475  1.1.1.21  mrg 	Backported from master:
    476  1.1.1.21  mrg 	2021-12-01  Jonathan Wakely  <jwakely (a] redhat.com>
    477  1.1.1.21  mrg 
    478  1.1.1.21  mrg 	PR libstdc++/103501
    479  1.1.1.21  mrg 	* include/bits/stl_tree.h (_Rb_tree(_Rb_tree&&, false_type)):
    480  1.1.1.21  mrg 	Clear container if elements have been moved-from.
    481  1.1.1.21  mrg 	* testsuite/23_containers/multiset/allocator/103501.cc: New test.
    482  1.1.1.21  mrg 	* testsuite/23_containers/set/allocator/103501.cc: New test.
    483  1.1.1.21  mrg 
    484  1.1.1.21  mrg 2022-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
    485  1.1.1.21  mrg 
    486  1.1.1.21  mrg 	PR libstdc++/97944
    487  1.1.1.21  mrg 	* testsuite/30_threads/jthread/95989.cc: Mark XFAIL.
    488  1.1.1.21  mrg 
    489  1.1.1.21  mrg 2022-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
    490  1.1.1.21  mrg 
    491  1.1.1.21  mrg 	Backported from master:
    492  1.1.1.21  mrg 	2020-11-24  Jonathan Wakely  <jwakely (a] redhat.com>
    493  1.1.1.21  mrg 
    494  1.1.1.21  mrg 	* testsuite/30_threads/jthread/95989.cc: Run all three test
    495  1.1.1.21  mrg 	functions, not just the first one twice.
    496  1.1.1.21  mrg 
    497  1.1.1.21  mrg 2022-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
    498  1.1.1.21  mrg 
    499  1.1.1.21  mrg 	Backported from master:
    500  1.1.1.21  mrg 	2022-04-28  Jonathan Wakely  <jwakely (a] redhat.com>
    501  1.1.1.21  mrg 
    502  1.1.1.21  mrg 	PR libstdc++/99290
    503  1.1.1.21  mrg 	* src/c++17/fs_ops.cc (fs::copy): Pass error_code to
    504  1.1.1.21  mrg 	directory_iterator constructor, and check on each iteration.
    505  1.1.1.21  mrg 	* src/filesystem/ops.cc (fs::copy): Likewise.
    506  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/copy.cc: Check for
    507  1.1.1.21  mrg 	errors during recursion.
    508  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/copy.cc:
    509  1.1.1.21  mrg 	Likewise.
    510  1.1.1.21  mrg 
    511  1.1.1.21  mrg 2022-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
    512  1.1.1.21  mrg 
    513  1.1.1.21  mrg 	Backported from master:
    514  1.1.1.21  mrg 	2021-11-05  Jonathan Wakely  <jwakely (a] redhat.com>
    515  1.1.1.21  mrg 
    516  1.1.1.21  mrg 	* testsuite/lib/gdb-test.exp: Add target selector support to the
    517  1.1.1.21  mrg 	dg-final directives.
    518  1.1.1.21  mrg 	* testsuite/libstdc++-prettyprinters/80276.cc: Add xfail for
    519  1.1.1.21  mrg 	C++20.
    520  1.1.1.21  mrg 	* testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
    521  1.1.1.21  mrg 	* testsuite/libstdc++-prettyprinters/prettyprinters.exp: Tweak
    522  1.1.1.21  mrg 	comment.
    523  1.1.1.21  mrg 
    524  1.1.1.21  mrg 2022-06-10  Jonathan Wakely  <jwakely (a] redhat.com>
    525  1.1.1.21  mrg 
    526  1.1.1.21  mrg 	Backported from master:
    527  1.1.1.21  mrg 	2022-06-10  Jonathan Wakely  <jwakely (a] redhat.com>
    528  1.1.1.21  mrg 
    529  1.1.1.21  mrg 	PR libstdc++/105915
    530  1.1.1.21  mrg 	* include/experimental/bits/fs_path.h (path::begin, path::end):
    531  1.1.1.21  mrg 	Remove noexcept from declarations.
    532  1.1.1.21  mrg 
    533  1.1.1.21  mrg 2022-05-31  Patrick Palka  <ppalka (a] redhat.com>
    534  1.1.1.21  mrg 
    535  1.1.1.21  mrg 	Backported from master:
    536  1.1.1.21  mrg 	2021-07-16  Patrick Palka  <ppalka (a] redhat.com>
    537  1.1.1.21  mrg 
    538  1.1.1.21  mrg 	PR libstdc++/103904
    539  1.1.1.21  mrg 	PR libstdc++/101231
    540  1.1.1.21  mrg 	* include/std/ranges (_CachedPosition::_M_get): For non-forward
    541  1.1.1.21  mrg 	ranges, just call __builtin_unreachable.
    542  1.1.1.21  mrg 	* testsuite/std/ranges/istream_view.cc (test05): New test.
    543  1.1.1.21  mrg 
    544  1.1.1.21  mrg 2022-05-31  Patrick Palka  <ppalka (a] redhat.com>
    545  1.1.1.21  mrg 
    546  1.1.1.21  mrg 	Backported from master:
    547  1.1.1.21  mrg 	2021-06-18  Patrick Palka  <ppalka (a] redhat.com>
    548  1.1.1.21  mrg 
    549  1.1.1.21  mrg 	PR libstdc++/103904
    550  1.1.1.21  mrg 	* include/bits/iterator_concepts.h (weakly_incrementable): Remove
    551  1.1.1.21  mrg 	default_initializable requirement.
    552  1.1.1.21  mrg 	* include/bits/stl_iterator.h (common_iterator): Constrain the
    553  1.1.1.21  mrg 	default ctor.
    554  1.1.1.21  mrg 	(counted_iterator): Likewise.
    555  1.1.1.21  mrg 	* include/std/ranges (ranges::view): Remove default_initializable
    556  1.1.1.21  mrg 	requirement.
    557  1.1.1.21  mrg 	(subrange): Constrain the default ctor.
    558  1.1.1.21  mrg 	(__detail::__box::operator=): Handle self-assignment.
    559  1.1.1.21  mrg 	(single_view): Constraint the default ctor.
    560  1.1.1.21  mrg 	(iota_view): Relax semiregular constraint to copyable.
    561  1.1.1.21  mrg 	Constrain the default ctor.
    562  1.1.1.21  mrg 	(iota_view::_Iterator): Constraint the default ctor.
    563  1.1.1.21  mrg 	(filter_view): Likewise.
    564  1.1.1.21  mrg 	(filter_view::_Iterator): Likewise.
    565  1.1.1.21  mrg 	(transform_view): Likewise.
    566  1.1.1.21  mrg 	(transform_view::_Iterator): Likewise.
    567  1.1.1.21  mrg 	(take_view): Likewise.
    568  1.1.1.21  mrg 	(take_view::_Iterator): Likewise.
    569  1.1.1.21  mrg 	(take_while_view): Likewise.
    570  1.1.1.21  mrg 	(take_while_view::_Iterator): Likewise.
    571  1.1.1.21  mrg 	(drop_while_view): Likewise.
    572  1.1.1.21  mrg 	(drop_while_view::_Iterator): Likewise.
    573  1.1.1.21  mrg 	(join_view): Likewise.
    574  1.1.1.21  mrg 	(split_view): Constrain the default ctor.
    575  1.1.1.21  mrg 	(common_view): Likewise.
    576  1.1.1.21  mrg 	(reverse_view): Likewise.
    577  1.1.1.21  mrg 	(elements_view): Likewise.
    578  1.1.1.21  mrg 	(elements_view::_Iterator): Likewise.
    579  1.1.1.21  mrg 	* include/std/span (enable_view<span<_ElementType, _Extent>>):
    580  1.1.1.21  mrg 	Define this partial specialization to true unconditionally.
    581  1.1.1.21  mrg 	* testsuite/std/ranges/p2325.cc: New test.
    582  1.1.1.21  mrg 	* testsuite/std/ranges/single_view.cc (test06): New test.
    583  1.1.1.21  mrg 	* testsuite/std/ranges/view.cc: Adjust now that view doesn't
    584  1.1.1.21  mrg 	require default_initializable.
    585  1.1.1.21  mrg 
    586  1.1.1.21  mrg 2022-05-29  Iain Sandoe  <iain (a] sandoe.co.uk>
    587  1.1.1.21  mrg 
    588  1.1.1.21  mrg 	Backported from master:
    589  1.1.1.21  mrg 	2021-03-15  Iain Sandoe  <iain (a] sandoe.co.uk>
    590  1.1.1.21  mrg 
    591  1.1.1.21  mrg 	* testsuite/17_intro/names.cc: Exclude j from the list
    592  1.1.1.21  mrg 	of test symbols for Darwin.
    593  1.1.1.21  mrg 
    594  1.1.1.21  mrg 2022-05-29  Iain Sandoe  <iain (a] sandoe.co.uk>
    595  1.1.1.21  mrg 
    596  1.1.1.21  mrg 	Backported from master:
    597  1.1.1.21  mrg 	2021-11-19  Iain Sandoe  <iain (a] sandoe.co.uk>
    598  1.1.1.21  mrg 
    599  1.1.1.21  mrg 	* testsuite/lib/prune.exp: Prune dsymutil (ld64) warning.
    600  1.1.1.21  mrg 
    601  1.1.1.21  mrg 2022-05-16  Jonathan Wakely  <jwakely (a] redhat.com>
    602  1.1.1.21  mrg 
    603  1.1.1.21  mrg 	Backported from master:
    604  1.1.1.21  mrg 	2022-05-16  Jonathan Wakely  <jwakely (a] redhat.com>
    605  1.1.1.21  mrg 
    606  1.1.1.21  mrg 	* doc/xml/manual/prerequisites.xml: Fix attributes for external
    607  1.1.1.21  mrg 	hyperlink.
    608  1.1.1.21  mrg 	* doc/html/manual/setup.html: Regenerate.
    609  1.1.1.21  mrg 
    610  1.1.1.21  mrg 2022-05-16  Jonathan Wakely  <jwakely (a] redhat.com>
    611  1.1.1.21  mrg 
    612  1.1.1.21  mrg 	Backported from master:
    613  1.1.1.21  mrg 	2022-05-16  Jonathan Wakely  <jwakely (a] redhat.com>
    614  1.1.1.21  mrg 
    615  1.1.1.21  mrg 	* doc/html/manual/status.html: Regenerate.
    616  1.1.1.21  mrg 	* doc/xml/manual/status_cxx2020.xml: Fix supported version for
    617  1.1.1.21  mrg 	C++20 bit operations.
    618  1.1.1.21  mrg 
    619  1.1.1.21  mrg 2022-05-09  Jonathan Wakely  <jwakely (a] redhat.com>
    620  1.1.1.21  mrg 
    621  1.1.1.21  mrg 	Backported from master:
    622  1.1.1.21  mrg 	2022-04-20  Jonathan Wakely  <jwakely (a] redhat.com>
    623  1.1.1.21  mrg 
    624  1.1.1.21  mrg 	PR libstdc++/93602
    625  1.1.1.21  mrg 	* doc/xml/manual/prerequisites.xml: Document libiconv
    626  1.1.1.21  mrg 	workarounds.
    627  1.1.1.21  mrg 	* doc/html/manual/setup.html: Regenerate.
    628  1.1.1.21  mrg 	* src/Makefile.am (CXXLINK): Add $(LTLIBICONV).
    629  1.1.1.21  mrg 	* src/Makefile.in: Regenerate.
    630  1.1.1.21  mrg 
    631  1.1.1.21  mrg 2022-05-09  Jonathan Wakely  <jwakely (a] redhat.com>
    632  1.1.1.21  mrg 
    633  1.1.1.21  mrg 	Backported from master:
    634  1.1.1.21  mrg 	2022-05-06  Jonathan Wakely  <jwakely (a] redhat.com>
    635  1.1.1.21  mrg 
    636  1.1.1.21  mrg 	PR libstdc++/105502
    637  1.1.1.21  mrg 	* include/bits/random.tcc
    638  1.1.1.21  mrg 	(operator>>(basic_istream<C,T>&, normal_distribution<R>&)):
    639  1.1.1.21  mrg 	Update state when __state_avail is false.
    640  1.1.1.21  mrg 	* testsuite/26_numerics/random/normal_distribution/operators/serialize.cc:
    641  1.1.1.21  mrg 	Check that deserialized object equals serialized one.
    642  1.1.1.21  mrg 
    643  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    644  1.1.1.21  mrg 
    645  1.1.1.21  mrg 	Backported from master:
    646  1.1.1.21  mrg 	2021-12-09  Jonathan Wakely  <jwakely (a] redhat.com>
    647  1.1.1.21  mrg 
    648  1.1.1.21  mrg 	* include/bits/stl_iterator.h (operator==, operator<=>): Define
    649  1.1.1.21  mrg 	overloads for homogeneous specializations of reverse_iterator,
    650  1.1.1.21  mrg 	__normal_iterator and move_iterator.
    651  1.1.1.21  mrg 
    652  1.1.1.21  mrg 2022-04-26  Patrick Palka  <ppalka (a] redhat.com>
    653  1.1.1.21  mrg 
    654  1.1.1.21  mrg 	Backported from master:
    655  1.1.1.21  mrg 	2021-10-21  Patrick Palka  <ppalka (a] redhat.com>
    656  1.1.1.21  mrg 
    657  1.1.1.21  mrg 	* include/bits/stl_iterator.h (common_iterator::__arrow_proxy):
    658  1.1.1.21  mrg 	Make fully constexpr as per LWG 3595.
    659  1.1.1.21  mrg 	(common_iterator::__postfix_proxy): Likewise.
    660  1.1.1.21  mrg 
    661  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    662  1.1.1.21  mrg 
    663  1.1.1.21  mrg 	Backported from master:
    664  1.1.1.21  mrg 	2022-01-18  Jonathan Wakely  <jwakely (a] redhat.com>
    665  1.1.1.21  mrg 
    666  1.1.1.21  mrg 	PR libstdc++/104098
    667  1.1.1.21  mrg 	* include/bits/stl_iterator.h (reverse_iterator): Check
    668  1.1.1.21  mrg 	__cpp_lib_concepts instead of __cplusplus.
    669  1.1.1.21  mrg 
    670  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    671  1.1.1.21  mrg 
    672  1.1.1.21  mrg 	Backported from master:
    673  1.1.1.21  mrg 	2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
    674  1.1.1.21  mrg 
    675  1.1.1.21  mrg 	* include/bits/range_access.h (ranges::empty): Check whether
    676  1.1.1.21  mrg 	conversion to bool can throw.
    677  1.1.1.21  mrg 	* testsuite/std/ranges/access/empty.cc: Check for correct
    678  1.1.1.21  mrg 	noexcept-specifier.
    679  1.1.1.21  mrg 
    680  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    681  1.1.1.21  mrg 
    682  1.1.1.21  mrg 	PR libstdc++/102048
    683  1.1.1.21  mrg 	* include/ext/rope (rope::erase(size_type)): Deprecate broken
    684  1.1.1.21  mrg 	function.
    685  1.1.1.21  mrg 
    686  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    687  1.1.1.21  mrg 
    688  1.1.1.21  mrg 	Backported from master:
    689  1.1.1.21  mrg 	2021-10-01  Jonathan Wakely  <jwakely (a] redhat.com>
    690  1.1.1.21  mrg 
    691  1.1.1.21  mrg 	PR libstdc++/100153
    692  1.1.1.21  mrg 	* include/bits/vector.tcc (vector<bool>::_M_shrink_to_fit()):
    693  1.1.1.21  mrg 	When size() is zero just deallocate and reset.
    694  1.1.1.21  mrg 
    695  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    696  1.1.1.21  mrg 
    697  1.1.1.21  mrg 	Backported from master:
    698  1.1.1.21  mrg 	2021-11-01  Jonathan Wakely  <jwakely (a] redhat.com>
    699  1.1.1.21  mrg 
    700  1.1.1.21  mrg 	* include/std/span (span(Range&&)): Reorder constraints.
    701  1.1.1.21  mrg 
    702  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    703  1.1.1.21  mrg 
    704  1.1.1.21  mrg 	Backported from master:
    705  1.1.1.21  mrg 	2021-11-09  Jonathan Wakely  <jwakely (a] redhat.com>
    706  1.1.1.21  mrg 
    707  1.1.1.21  mrg 	* testsuite/26_numerics/random/random_device/cons/token.cc:
    708  1.1.1.21  mrg 	Retry if random devices produce the same value.
    709  1.1.1.21  mrg 
    710  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    711  1.1.1.21  mrg 
    712  1.1.1.21  mrg 	Backported from master:
    713  1.1.1.21  mrg 	2021-11-16  Jonathan Wakely  <jwakely (a] redhat.com>
    714  1.1.1.21  mrg 
    715  1.1.1.21  mrg 	* testsuite/21_strings/basic_string/modifiers/append/wchar_t/1.cc:
    716  1.1.1.21  mrg 	Fix reads past the end of strings.
    717  1.1.1.21  mrg 	* testsuite/21_strings/basic_string/operations/compare/wchar_t/1.cc:
    718  1.1.1.21  mrg 	Likewise.
    719  1.1.1.21  mrg 	* testsuite/experimental/string_view/operations/compare/wchar_t/1.cc:
    720  1.1.1.21  mrg 	Likewise.
    721  1.1.1.21  mrg 
    722  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    723  1.1.1.21  mrg 
    724  1.1.1.21  mrg 	Backported from master:
    725  1.1.1.21  mrg 	2021-11-10  Jonathan Wakely  <jwakely (a] redhat.com>
    726  1.1.1.21  mrg 
    727  1.1.1.21  mrg 	PR libstdc++/100117
    728  1.1.1.21  mrg 	* testsuite/17_intro/headers/c++1998/49745.cc: Explicitly list
    729  1.1.1.21  mrg 	all C++ headers instead of including <bits/stdc++.h>
    730  1.1.1.21  mrg 
    731  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    732  1.1.1.21  mrg 
    733  1.1.1.21  mrg 	Backported from master:
    734  1.1.1.21  mrg 	2021-12-09  Jonathan Wakely  <jwakely (a] redhat.com>
    735  1.1.1.21  mrg 
    736  1.1.1.21  mrg 	PR libstdc++/103630
    737  1.1.1.21  mrg 	* libsupc++/exception_ptr.h (make_exception_ptr): Decay the
    738  1.1.1.21  mrg 	template parameter. Use typeid of the static type.
    739  1.1.1.21  mrg 	* testsuite/18_support/exception_ptr/103630.cc: New test.
    740  1.1.1.21  mrg 
    741  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    742  1.1.1.21  mrg 
    743  1.1.1.21  mrg 	Backported from master:
    744  1.1.1.21  mrg 	2022-01-17  Jonathan Wakely  <jwakely (a] redhat.com>
    745  1.1.1.21  mrg 
    746  1.1.1.21  mrg 	PR libstdc++/103650
    747  1.1.1.21  mrg 	* include/Makefile.am: Rename LT_OBJDIR and STDC_HEADERS.
    748  1.1.1.21  mrg 	* include/Makefile.in: Regenerate.
    749  1.1.1.21  mrg 	* testsuite/17_intro/headers/c++1998/103650.cc: New test.
    750  1.1.1.21  mrg 
    751  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    752  1.1.1.21  mrg 
    753  1.1.1.21  mrg 	Backported from master:
    754  1.1.1.21  mrg 	2022-02-04  Jonathan Wakely  <jwakely (a] redhat.com>
    755  1.1.1.21  mrg 
    756  1.1.1.21  mrg 	* include/experimental/bits/fs_ops.h (fs::copy_file): Remove
    757  1.1.1.21  mrg 	noexcept.
    758  1.1.1.21  mrg 	(fs::create_directories): Likewise.
    759  1.1.1.21  mrg 	(fs::remove_all): Likewise.
    760  1.1.1.21  mrg 	* src/filesystem/ops.cc (fs::copy_file): Remove noexcept.
    761  1.1.1.21  mrg 	(fs::create_directories): Likewise.
    762  1.1.1.21  mrg 	(fs::remove_all): Likewise.
    763  1.1.1.21  mrg 
    764  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    765  1.1.1.21  mrg 
    766  1.1.1.21  mrg 	Backported from master:
    767  1.1.1.21  mrg 	2022-04-01  Jonathan Wakely  <jwakely (a] redhat.com>
    768  1.1.1.21  mrg 
    769  1.1.1.21  mrg 	* include/experimental/bits/fs_fwd.h (copy_file): Remove
    770  1.1.1.21  mrg 	incorrect noexcept from declaration.
    771  1.1.1.21  mrg 	* include/experimental/bits/fs_path.h (path::begin, path::end):
    772  1.1.1.21  mrg 	Add noexcept to declarations, to match definitions.
    773  1.1.1.21  mrg 
    774  1.1.1.21  mrg 2022-04-26  Timm Bder  <tbaeder (a] redhat.com>
    775  1.1.1.21  mrg 
    776  1.1.1.21  mrg 	Backported from master:
    777  1.1.1.21  mrg 	2022-04-01  Timm Bder  <tbaeder (a] redhat.com>
    778  1.1.1.21  mrg 
    779  1.1.1.21  mrg 	* include/bits/fs_ops.h: Fix filename in Doxygen comment.
    780  1.1.1.21  mrg 	* include/experimental/bits/fs_ops.h: Likewise.
    781  1.1.1.21  mrg 
    782  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    783  1.1.1.21  mrg 
    784  1.1.1.21  mrg 	Backported from master:
    785  1.1.1.21  mrg 	2022-04-20  Jonathan Wakely  <jwakely (a] redhat.com>
    786  1.1.1.21  mrg 
    787  1.1.1.21  mrg 	* testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
    788  1.1.1.21  mrg 	Check correct feature test macro.
    789  1.1.1.21  mrg 
    790  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    791  1.1.1.21  mrg 
    792  1.1.1.21  mrg 	Backported from master:
    793  1.1.1.21  mrg 	2022-04-14  Jonathan Wakely  <jwakely (a] redhat.com>
    794  1.1.1.21  mrg 
    795  1.1.1.21  mrg 	* doc/xml/manual/intro.xml: Fix comment.
    796  1.1.1.21  mrg 
    797  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    798  1.1.1.21  mrg 
    799  1.1.1.21  mrg 	Backported from master:
    800  1.1.1.21  mrg 	2022-03-03  Jonathan Wakely  <jwakely (a] redhat.com>
    801  1.1.1.21  mrg 
    802  1.1.1.21  mrg 	* testsuite/17_intro/names.cc (func): Undef on AIX.
    803  1.1.1.21  mrg 
    804  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    805  1.1.1.21  mrg 
    806  1.1.1.21  mrg 	Backported from master:
    807  1.1.1.21  mrg 	2022-01-27  Jonathan Wakely  <jwakely (a] redhat.com>
    808  1.1.1.21  mrg 
    809  1.1.1.21  mrg 	* include/bits/range_access.h (ranges::advance): Avoid signed
    810  1.1.1.21  mrg 	overflow. Do nothing if already equal to desired result.
    811  1.1.1.21  mrg 	* testsuite/24_iterators/range_operations/advance_overflow.cc:
    812  1.1.1.21  mrg 	New test.
    813  1.1.1.21  mrg 
    814  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    815  1.1.1.21  mrg 
    816  1.1.1.21  mrg 	Backported from master:
    817  1.1.1.21  mrg 	2022-01-06  Jonathan Wakely  <jwakely (a] redhat.com>
    818  1.1.1.21  mrg 
    819  1.1.1.21  mrg 	* testsuite/ext/rope/pthread7-rope.cc: Add dg-timeout-factor.
    820  1.1.1.21  mrg 
    821  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    822  1.1.1.21  mrg 
    823  1.1.1.21  mrg 	Backported from master:
    824  1.1.1.21  mrg 	2022-01-06  Jonathan Wakely  <jwakely (a] redhat.com>
    825  1.1.1.21  mrg 
    826  1.1.1.21  mrg 	PR libstdc++/103911
    827  1.1.1.21  mrg 	* include/std/charconv (__from_chars_alpha_to_num): Return
    828  1.1.1.21  mrg 	char instead of unsigned char. Change invalid return value to
    829  1.1.1.21  mrg 	127 instead of using numeric trait.
    830  1.1.1.21  mrg 	(__from_chars_alnum): Fix comment. Do not use std::isdigit.
    831  1.1.1.21  mrg 	Change type of variable to char.
    832  1.1.1.21  mrg 
    833  1.1.1.21  mrg 2022-04-26  Pavel I. Kryukov  <pavel.kryukov (a] phystech.edu>
    834  1.1.1.21  mrg 
    835  1.1.1.21  mrg 	Backported from master:
    836  1.1.1.21  mrg 	2022-01-06  Pavel I. Kryukov  <pavel.kryukov (a] phystech.edu>
    837  1.1.1.21  mrg 		    Jonathan Wakely  <jwakely (a] redhat.com>
    838  1.1.1.21  mrg 
    839  1.1.1.21  mrg 	PR libstdc++/103853
    840  1.1.1.21  mrg 	* include/bits/forward_list.tcc (forward_list::merge): Check for
    841  1.1.1.21  mrg 	self-merge.
    842  1.1.1.21  mrg 	* testsuite/23_containers/forward_list/operations/merge.cc: New test.
    843  1.1.1.21  mrg 
    844  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    845  1.1.1.21  mrg 
    846  1.1.1.21  mrg 	Backported from master:
    847  1.1.1.21  mrg 	2021-12-14  Jonathan Wakely  <jwakely (a] redhat.com>
    848  1.1.1.21  mrg 
    849  1.1.1.21  mrg 	* include/bits/regex_compiler.tcc (_Compiler::_M_match_token):
    850  1.1.1.21  mrg 	Use reserved name for parameter.
    851  1.1.1.21  mrg 	* testsuite/17_intro/names.cc: Check "token".
    852  1.1.1.21  mrg 
    853  1.1.1.21  mrg 2022-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
    854  1.1.1.21  mrg 
    855  1.1.1.21  mrg 	Backported from master:
    856  1.1.1.21  mrg 	2021-08-25  Jonathan Wakely  <jwakely (a] redhat.com>
    857  1.1.1.21  mrg 
    858  1.1.1.21  mrg 	* testsuite/17_intro/names.cc: Check 'sz'.
    859  1.1.1.21  mrg 
    860  1.1.1.21  mrg 2022-04-14  Jonathan Wakely  <jwakely (a] redhat.com>
    861  1.1.1.21  mrg 
    862  1.1.1.21  mrg 	* doc/xml/manual/status_cxx1998.xml: Refer to GCC 10 not
    863  1.1.1.21  mrg 	mainline.
    864  1.1.1.21  mrg 	* doc/xml/manual/status_cxx2011.xml: Likewise.
    865  1.1.1.21  mrg 	* doc/xml/manual/status_cxx2014.xml: Likewise.
    866  1.1.1.21  mrg 	* doc/xml/manual/status_cxx2017.xml: Likewise.
    867  1.1.1.21  mrg 	* doc/xml/manual/status_cxx2020.xml: Likewise.
    868  1.1.1.21  mrg 	* doc/xml/manual/status_cxxtr1.xml: Likewise.
    869  1.1.1.21  mrg 	* doc/xml/manual/status_cxxtr24733.xml: Likewise.
    870  1.1.1.21  mrg 	* doc/html/manual/status.html: Regenerate.
    871  1.1.1.21  mrg 
    872  1.1.1.21  mrg 2022-02-17  Patrick Palka  <ppalka (a] redhat.com>
    873  1.1.1.21  mrg 
    874  1.1.1.21  mrg 	Backported from master:
    875  1.1.1.21  mrg 	2021-10-21  Patrick Palka  <ppalka (a] redhat.com>
    876  1.1.1.21  mrg 
    877  1.1.1.21  mrg 	PR libstdc++/102358
    878  1.1.1.21  mrg 	* include/bits/stl_iterator.h (__niter_base): Make constexpr
    879  1.1.1.21  mrg 	for C++20.
    880  1.1.1.21  mrg 	(__miter_base): Likewise.
    881  1.1.1.21  mrg 	* testsuite/25_algorithms/move/constexpr.cc: New test.
    882  1.1.1.21  mrg 
    883  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    884  1.1.1.21  mrg 
    885  1.1.1.21  mrg 	Backported from master:
    886  1.1.1.21  mrg 	2021-11-18  Jonathan Wakely  <jwakely (a] redhat.com>
    887  1.1.1.21  mrg 
    888  1.1.1.21  mrg 	* include/bits/char_traits.h (__gnu_cxx::char_traits::move):
    889  1.1.1.21  mrg 	Do not compare unrelated pointers during constant evaluation.
    890  1.1.1.21  mrg 	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
    891  1.1.1.21  mrg 	Improve tests for char_traits::move.
    892  1.1.1.21  mrg 
    893  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    894  1.1.1.21  mrg 
    895  1.1.1.21  mrg 	Backported from master:
    896  1.1.1.21  mrg 	2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    897  1.1.1.21  mrg 
    898  1.1.1.21  mrg 	PR libstdc++/103877
    899  1.1.1.21  mrg 	* doc/xml/faq.xml: Add '-x c++' to preprocessor command.
    900  1.1.1.21  mrg 	* doc/html/faq.html: Regenerate.
    901  1.1.1.21  mrg 
    902  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    903  1.1.1.21  mrg 
    904  1.1.1.21  mrg 	Backported from master:
    905  1.1.1.21  mrg 	2021-12-04  Jonathan Wakely  <jwakely (a] redhat.com>
    906  1.1.1.21  mrg 
    907  1.1.1.21  mrg 	PR libstdc++/103549
    908  1.1.1.21  mrg 	* include/bits/regex.h (match_results): Give names to template
    909  1.1.1.21  mrg 	parameters in first declaration.
    910  1.1.1.21  mrg 	(match_results::_M_begin): Add default member-initializer.
    911  1.1.1.21  mrg 
    912  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    913  1.1.1.21  mrg 
    914  1.1.1.21  mrg 	Backported from master:
    915  1.1.1.21  mrg 	2021-11-30  Jonathan Wakely  <jwakely (a] redhat.com>
    916  1.1.1.21  mrg 
    917  1.1.1.21  mrg 	PR libstdc++/103453
    918  1.1.1.21  mrg 	* config/allocator/malloc_allocator_base.h
    919  1.1.1.21  mrg 	(_GLIBCXX_SANITIZE_STD_ALLOCATOR): Define for Clang.
    920  1.1.1.21  mrg 	* config/allocator/new_allocator_base.h
    921  1.1.1.21  mrg 	(_GLIBCXX_SANITIZE_STD_ALLOCATOR): Likewise.
    922  1.1.1.21  mrg 
    923  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    924  1.1.1.21  mrg 
    925  1.1.1.21  mrg 	Backported from master:
    926  1.1.1.21  mrg 	2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    927  1.1.1.21  mrg 
    928  1.1.1.21  mrg 	* python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Strip
    929  1.1.1.21  mrg 	versioned namespace from the type name that is printed.
    930  1.1.1.21  mrg 
    931  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    932  1.1.1.21  mrg 
    933  1.1.1.21  mrg 	Backported from master:
    934  1.1.1.21  mrg 	2021-08-28  Jonathan Wakely  <jwakely (a] redhat.com>
    935  1.1.1.21  mrg 
    936  1.1.1.21  mrg 	* include/bits/alloc_traits.h (allocator_traits): Add explicit
    937  1.1.1.21  mrg 	specialization for allocator<void>. Improve doxygen comments.
    938  1.1.1.21  mrg 	* include/bits/allocator.h (allocator<void>): Restore for the
    939  1.1.1.21  mrg 	versioned namespace.
    940  1.1.1.21  mrg 	(allocator<void>::construct, allocator<void>::destroy): Remove.
    941  1.1.1.21  mrg 	* include/ext/extptr_allocator.h (_Extptr_allocator<void>):
    942  1.1.1.21  mrg 	Add default constructor and converting constructor.
    943  1.1.1.21  mrg 
    944  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    945  1.1.1.21  mrg 
    946  1.1.1.21  mrg 	Backported from master:
    947  1.1.1.21  mrg 	2021-11-23  Jonathan Wakely  <jwakely (a] redhat.com>
    948  1.1.1.21  mrg 
    949  1.1.1.21  mrg 	PR libstdc++/103086
    950  1.1.1.21  mrg 	* testsuite/libstdc++-prettyprinters/cxx11.cc: Check unique_ptr
    951  1.1.1.21  mrg 	with non-empty pointer and non-empty deleter.
    952  1.1.1.21  mrg 
    953  1.1.1.21  mrg 2022-01-05  Jonathan Wakely  <jwakely (a] redhat.com>
    954  1.1.1.21  mrg 
    955  1.1.1.21  mrg 	Backported from master:
    956  1.1.1.21  mrg 	2021-11-04  Jonathan Wakely  <jwakely (a] redhat.com>
    957  1.1.1.21  mrg 
    958  1.1.1.21  mrg 	PR libstdc++/103086
    959  1.1.1.21  mrg 	* python/libstdcxx/v6/printers.py (_tuple_impl_get): New helper
    960  1.1.1.21  mrg 	for accessing the tuple element stored in a _Tuple_impl node.
    961  1.1.1.21  mrg 	(tuple_get): New function for accessing a tuple element.
    962  1.1.1.21  mrg 	(unique_ptr_get): New function for accessing a unique_ptr.
    963  1.1.1.21  mrg 	(UniquePointerPrinter, StdPathPrinter): Use unique_ptr_get.
    964  1.1.1.21  mrg 	* python/libstdcxx/v6/xmethods.py (UniquePtrGetWorker): Cast
    965  1.1.1.21  mrg 	tuple to its base class before accessing _M_head_impl.
    966  1.1.1.21  mrg 
    967  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
    968  1.1.1.21  mrg 
    969  1.1.1.21  mrg 	Backported from master:
    970  1.1.1.21  mrg 	2021-07-22  Jonathan Wakely  <jwakely (a] redhat.com>
    971  1.1.1.21  mrg 
    972  1.1.1.21  mrg 	PR libstdc++/101571
    973  1.1.1.21  mrg 	* include/bits/ranges_uninitialized.h (_DestroyGuard): Change
    974  1.1.1.21  mrg 	constructor parameter to reference and use addressof.
    975  1.1.1.21  mrg 	* testsuite/util/testsuite_iterators.h: Define deleted operator&
    976  1.1.1.21  mrg 	overloads for test iterators.
    977  1.1.1.21  mrg 
    978  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
    979  1.1.1.21  mrg 
    980  1.1.1.21  mrg 	Backported from master:
    981  1.1.1.21  mrg 	2021-08-19  Jonathan Wakely  <jwakely (a] redhat.com>
    982  1.1.1.21  mrg 
    983  1.1.1.21  mrg 	PR libstdc++/101965
    984  1.1.1.21  mrg 	* include/std/charconv (__to_chars_i): Remove redundant check.
    985  1.1.1.21  mrg 
    986  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
    987  1.1.1.21  mrg 
    988  1.1.1.21  mrg 	Backported from master:
    989  1.1.1.21  mrg 	2021-10-22  Jonathan Wakely  <jwakely (a] redhat.com>
    990  1.1.1.21  mrg 
    991  1.1.1.21  mrg 	PR libstdc++/102894
    992  1.1.1.21  mrg 	* include/std/any (make_any): Add SFINAE constraint.
    993  1.1.1.21  mrg 	* testsuite/20_util/any/102894.cc: New test.
    994  1.1.1.21  mrg 
    995  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
    996  1.1.1.21  mrg 
    997  1.1.1.21  mrg 	PR libstdc++/102270
    998  1.1.1.21  mrg 	* include/std/tuple (_Head_base, _Tuple_impl): Add
    999  1.1.1.21  mrg 	_GLIBCXX20_CONSTEXPR to allocator-extended constructors.
   1000  1.1.1.21  mrg 	(tuple<>::swap(tuple&)): Add _GLIBCXX20_CONSTEXPR.
   1001  1.1.1.21  mrg 	* testsuite/20_util/tuple/cons/102270.cc: New test.
   1002  1.1.1.21  mrg 	* testsuite/util/testsuite_allocator.h (SimpleAllocator): Add
   1003  1.1.1.21  mrg 	constexpr to constructor so it can be used for C++20 tests.
   1004  1.1.1.21  mrg 
   1005  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1006  1.1.1.21  mrg 
   1007  1.1.1.21  mrg 	Backported from master:
   1008  1.1.1.21  mrg 	2021-08-09  Jonathan Wakely  <jwakely (a] redhat.com>
   1009  1.1.1.21  mrg 
   1010  1.1.1.21  mrg 	* testsuite/23_containers/unordered_map/cons/default.cc: Add
   1011  1.1.1.21  mrg 	equality comparison operators to allocator.
   1012  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/cons/default.cc:
   1013  1.1.1.21  mrg 	Likewise.
   1014  1.1.1.21  mrg 
   1015  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1016  1.1.1.21  mrg 
   1017  1.1.1.21  mrg 	Backported from master:
   1018  1.1.1.21  mrg 	2021-07-20  Jonathan Wakely  <jwakely (a] redhat.com>
   1019  1.1.1.21  mrg 
   1020  1.1.1.21  mrg 	PR libstdc++/100863
   1021  1.1.1.21  mrg 	* include/bits/hashtable.h (_Hashtable): Conditionally delete
   1022  1.1.1.21  mrg 	default constructor by deriving from _Enable_default_constructor.
   1023  1.1.1.21  mrg 	Construct that base-class explicitly in all non-forwarding,
   1024  1.1.1.21  mrg 	non-defaulted constructors.
   1025  1.1.1.21  mrg 	* testsuite/23_containers/unordered_map/cons/default.cc: New test.
   1026  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/cons/default.cc: New test.
   1027  1.1.1.21  mrg 
   1028  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1029  1.1.1.21  mrg 
   1030  1.1.1.21  mrg 	Backported from master:
   1031  1.1.1.21  mrg 	2021-06-02  Jonathan Wakely  <jwakely (a] redhat.com>
   1032  1.1.1.21  mrg 
   1033  1.1.1.21  mrg 	PR libstdc++/100863
   1034  1.1.1.21  mrg 	PR libstdc++/65816
   1035  1.1.1.21  mrg 	* include/bits/hashtable_policy.h (_Hashtable_ebo_helper):
   1036  1.1.1.21  mrg 	Value-initialize subobject.
   1037  1.1.1.21  mrg 	* testsuite/23_containers/unordered_map/allocator/default_init.cc:
   1038  1.1.1.21  mrg 	Remove XFAIL.
   1039  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/allocator/default_init.cc:
   1040  1.1.1.21  mrg 	Remove XFAIL.
   1041  1.1.1.21  mrg 
   1042  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1043  1.1.1.21  mrg 
   1044  1.1.1.21  mrg 	Backported from master:
   1045  1.1.1.21  mrg 	2021-09-28  Jonathan Wakely  <jwakely (a] redhat.com>
   1046  1.1.1.21  mrg 
   1047  1.1.1.21  mrg 	* include/bits/move.h (forward(remove_reference_t<T>&&)):
   1048  1.1.1.21  mrg 	Improve text of static_assert.
   1049  1.1.1.21  mrg 	* testsuite/20_util/forward/c_neg.cc: Adjust dg-error.
   1050  1.1.1.21  mrg 	* testsuite/20_util/forward/f_neg.cc: Likewise.
   1051  1.1.1.21  mrg 
   1052  1.1.1.21  mrg 2021-11-26  Antony Polukhin  <antoshkka (a] gmail.com>
   1053  1.1.1.21  mrg 
   1054  1.1.1.21  mrg 	Backported from master:
   1055  1.1.1.21  mrg 	2021-08-17  Antony Polukhin  <antoshkka (a] gmail.com>
   1056  1.1.1.21  mrg 		    Jonathan Wakely  <jwakely (a] redhat.com>
   1057  1.1.1.21  mrg 
   1058  1.1.1.21  mrg 	* include/bits/random.tcc (seed_seq::seed_seq): Reserve capacity
   1059  1.1.1.21  mrg 	if distance is O(1).
   1060  1.1.1.21  mrg 	* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
   1061  1.1.1.21  mrg 	line number.
   1062  1.1.1.21  mrg 
   1063  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1064  1.1.1.21  mrg 
   1065  1.1.1.21  mrg 	Backported from master:
   1066  1.1.1.21  mrg 	2021-08-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1067  1.1.1.21  mrg 
   1068  1.1.1.21  mrg 	PR libstdc++/101870
   1069  1.1.1.21  mrg 	* include/c_global/cmath (hypot): Use __promoted_t.
   1070  1.1.1.21  mrg 	(lerp): Add new overload accepting any arithmetic types.
   1071  1.1.1.21  mrg 	* include/ext/type_traits.h (__promoted_t): New alias template.
   1072  1.1.1.21  mrg 	* testsuite/26_numerics/lerp.cc: Moved to...
   1073  1.1.1.21  mrg 	* testsuite/26_numerics/lerp/1.cc: ...here.
   1074  1.1.1.21  mrg 	* testsuite/26_numerics/lerp/constexpr.cc: New test.
   1075  1.1.1.21  mrg 	* testsuite/26_numerics/lerp/version.cc: New test.
   1076  1.1.1.21  mrg 
   1077  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1078  1.1.1.21  mrg 
   1079  1.1.1.21  mrg 	* testsuite/27_io/types/1.cc: Add c++11 target selector to
   1080  1.1.1.21  mrg 	warnings.
   1081  1.1.1.21  mrg 
   1082  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1083  1.1.1.21  mrg 
   1084  1.1.1.21  mrg 	Backported from master:
   1085  1.1.1.21  mrg 	2021-05-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1086  1.1.1.21  mrg 
   1087  1.1.1.21  mrg 	* testsuite/20_util/headers/memory/synopsis.cc: Define C++98
   1088  1.1.1.21  mrg 	alternative for macro.
   1089  1.1.1.21  mrg 	* testsuite/20_util/shared_ptr/creation/99006.cc: Add effective
   1090  1.1.1.21  mrg 	target keyword.
   1091  1.1.1.21  mrg 	* testsuite/25_algorithms/copy/debug/99402.cc: Avoid C++11
   1092  1.1.1.21  mrg 	syntax.
   1093  1.1.1.21  mrg 
   1094  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1095  1.1.1.21  mrg 
   1096  1.1.1.21  mrg 	* testsuite/23_containers/array/comparison_operators/96851.cc:
   1097  1.1.1.21  mrg 	Skip test in debug mode.
   1098  1.1.1.21  mrg 
   1099  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1100  1.1.1.21  mrg 
   1101  1.1.1.21  mrg 	* include/bits/stl_iterator.h: Include required header for
   1102  1.1.1.21  mrg 	std::iterator class template and iterator category tags.
   1103  1.1.1.21  mrg 
   1104  1.1.1.21  mrg 2021-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1105  1.1.1.21  mrg 
   1106  1.1.1.21  mrg 	Backported from master:
   1107  1.1.1.21  mrg 	2021-11-25  Jonathan Wakely  <jwakely (a] redhat.com>
   1108  1.1.1.21  mrg 
   1109  1.1.1.21  mrg 	PR libstdc++/101608
   1110  1.1.1.21  mrg 	* include/bits/ranges_algobase.h (__fill_n_fn): Check for
   1111  1.1.1.21  mrg 	constant evaluation before using memset.
   1112  1.1.1.21  mrg 	* testsuite/25_algorithms/fill_n/constrained.cc: Check
   1113  1.1.1.21  mrg 	byte-sized values as well.
   1114  1.1.1.21  mrg 
   1115  1.1.1.21  mrg 2021-11-23  Jonathan Wakely  <jwakely (a] redhat.com>
   1116  1.1.1.21  mrg 
   1117  1.1.1.21  mrg 	Backported from master:
   1118  1.1.1.21  mrg 	2021-11-23  Jonathan Wakely  <jwakely (a] redhat.com>
   1119  1.1.1.21  mrg 
   1120  1.1.1.21  mrg 	PR libstdc++/103381
   1121  1.1.1.21  mrg 	* include/ext/bitmap_allocator.h: Include <bits/stl_function.h>
   1122  1.1.1.21  mrg 	instead of <functional>.
   1123  1.1.1.21  mrg 
   1124  1.1.1.21  mrg 2021-11-01  Jonathan Wakely  <jwakely (a] redhat.com>
   1125  1.1.1.21  mrg 
   1126  1.1.1.21  mrg 	* include/std/valarray (begin, end): Remove nodiscard attribute.
   1127  1.1.1.21  mrg 
   1128  1.1.1.21  mrg 2021-11-01  Jonathan Wakely  <jwakely (a] redhat.com>
   1129  1.1.1.21  mrg 
   1130  1.1.1.21  mrg 	Backported from master:
   1131  1.1.1.21  mrg 	2021-11-01  Jonathan Wakely  <jwakely (a] redhat.com>
   1132  1.1.1.21  mrg 
   1133  1.1.1.21  mrg 	PR libstdc++/103022
   1134  1.1.1.21  mrg 	* include/std/valarray (begin, end): Do not dereference an empty
   1135  1.1.1.21  mrg 	valarray. Add noexcept and [[nodiscard]].
   1136  1.1.1.21  mrg 	* testsuite/26_numerics/valarray/range_access.cc: Check empty
   1137  1.1.1.21  mrg 	valarray. Check iterator properties. Run as well as compiling.
   1138  1.1.1.21  mrg 	* testsuite/26_numerics/valarray/range_access2.cc: Likewise.
   1139  1.1.1.21  mrg 	* testsuite/26_numerics/valarray/103022.cc: New test.
   1140  1.1.1.21  mrg 
   1141  1.1.1.21  mrg 2021-10-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1142  1.1.1.21  mrg 
   1143  1.1.1.21  mrg 	Backported from master:
   1144  1.1.1.21  mrg 	2021-10-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1145  1.1.1.21  mrg 
   1146  1.1.1.21  mrg 	* testsuite/28_regex/match_results/102667.C: Moved to...
   1147  1.1.1.21  mrg 	* testsuite/28_regex/match_results/102667.cc: ...here.
   1148  1.1.1.21  mrg 
   1149  1.1.1.21  mrg 2021-10-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1150  1.1.1.21  mrg 
   1151  1.1.1.21  mrg 	* testsuite/21_strings/basic_string_view/requirements/trivially_copyable.cc:
   1152  1.1.1.21  mrg 	Use -std=gnu++17 option.
   1153  1.1.1.21  mrg 
   1154  1.1.1.21  mrg 2021-10-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1155  1.1.1.21  mrg 
   1156  1.1.1.21  mrg 	Backported from master:
   1157  1.1.1.21  mrg 	2021-08-20  Jonathan Wakely  <jwakely (a] redhat.com>
   1158  1.1.1.21  mrg 
   1159  1.1.1.21  mrg 	PR libstdc++/90787
   1160  1.1.1.21  mrg 	* testsuite/27_io/filesystem/iterators/directory_iterator.cc:
   1161  1.1.1.21  mrg 	Use new __gnu_test::permissions_are_testable() function.
   1162  1.1.1.21  mrg 	* testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
   1163  1.1.1.21  mrg 	Likewise.
   1164  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/exists.cc: Likewise.
   1165  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
   1166  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/remove.cc: Likewise.
   1167  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/remove_all.cc: Likewise.
   1168  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/status.cc: Likewise.
   1169  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/symlink_status.cc:
   1170  1.1.1.21  mrg 	Likewise.
   1171  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/temp_directory_path.cc:
   1172  1.1.1.21  mrg 	Likewise.
   1173  1.1.1.21  mrg 	* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
   1174  1.1.1.21  mrg 	Likewise.
   1175  1.1.1.21  mrg 	* testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc:
   1176  1.1.1.21  mrg 	Likewise.
   1177  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/exists.cc:
   1178  1.1.1.21  mrg 	Likewise.
   1179  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/is_empty.cc:
   1180  1.1.1.21  mrg 	Likewise.
   1181  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/remove.cc:
   1182  1.1.1.21  mrg 	Likewise.
   1183  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/remove_all.cc:
   1184  1.1.1.21  mrg 	Likewise.
   1185  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
   1186  1.1.1.21  mrg 	Likewise.
   1187  1.1.1.21  mrg 	* testsuite/util/testsuite_fs.h (__gnu_test::permissions_are_testable):
   1188  1.1.1.21  mrg 	New function to guess whether testing permissions will work.
   1189  1.1.1.21  mrg 
   1190  1.1.1.21  mrg 2021-10-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1191  1.1.1.21  mrg 
   1192  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/remove_all.cc: Remove
   1193  1.1.1.21  mrg 	test directory after making it writable again.
   1194  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/remove_all.cc:
   1195  1.1.1.21  mrg 	Likewise.
   1196  1.1.1.21  mrg 
   1197  1.1.1.21  mrg 2021-10-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1198  1.1.1.21  mrg 
   1199  1.1.1.21  mrg 	Backported from master:
   1200  1.1.1.21  mrg 	2021-06-22  Jonathan Wakely  <jwakely (a] redhat.com>
   1201  1.1.1.21  mrg 
   1202  1.1.1.21  mrg 	* include/bits/random.h (seed_seq): Constrain initializer-list
   1203  1.1.1.21  mrg 	constructor.
   1204  1.1.1.21  mrg 	* include/bits/random.tcc (seed_seq): Add template parameter.
   1205  1.1.1.21  mrg 	* testsuite/26_numerics/random/seed_seq/cons/default.cc: Check
   1206  1.1.1.21  mrg 	for noexcept.
   1207  1.1.1.21  mrg 	* testsuite/26_numerics/random/seed_seq/cons/initlist.cc: Check
   1208  1.1.1.21  mrg 	constraints.
   1209  1.1.1.21  mrg 
   1210  1.1.1.21  mrg 2021-10-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1211  1.1.1.21  mrg 
   1212  1.1.1.21  mrg 	Backported from master:
   1213  1.1.1.21  mrg 	2021-05-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1214  1.1.1.21  mrg 
   1215  1.1.1.21  mrg 	* testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
   1216  1.1.1.21  mrg 	Increase dg-timeout-factor to 4. Fix -Wunused-parameter
   1217  1.1.1.21  mrg 	warnings. Replace bitwise AND with logical AND in loop
   1218  1.1.1.21  mrg 	condition.
   1219  1.1.1.21  mrg 	* testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
   1220  1.1.1.21  mrg 	Replace bitwise AND with logical AND in loop condition.
   1221  1.1.1.21  mrg 	* testsuite/util/pstl/test_utils.h: Remove unused parameter
   1222  1.1.1.21  mrg 	names.
   1223  1.1.1.21  mrg 
   1224  1.1.1.21  mrg 2021-10-13  Patrick Palka  <ppalka (a] redhat.com>
   1225  1.1.1.21  mrg 
   1226  1.1.1.21  mrg 	Backported from master:
   1227  1.1.1.21  mrg 	2021-04-28  Patrick Palka  <ppalka (a] redhat.com>
   1228  1.1.1.21  mrg 
   1229  1.1.1.21  mrg 	PR libstdc++/100187
   1230  1.1.1.21  mrg 	PR libstdc++/100237
   1231  1.1.1.21  mrg 	PR libstdc++/100249
   1232  1.1.1.21  mrg 	PR libstdc++/100287
   1233  1.1.1.21  mrg 	* include/bits/ranges_algo.h (__search_n_fn::operator()): Give
   1234  1.1.1.21  mrg 	the __value_comp lambda an explicit bool return type.
   1235  1.1.1.21  mrg 	(__is_permutation_fn::operator()): Give the __proj_scan local
   1236  1.1.1.21  mrg 	variable auto&& return type.  Give the __comp_scan lambda an
   1237  1.1.1.21  mrg 	explicit bool return type.
   1238  1.1.1.21  mrg 	(__remove_fn::operator()): Give the __pred lambda an explicit
   1239  1.1.1.21  mrg 	bool return type.
   1240  1.1.1.21  mrg 	(__partition_fn::operator()): Don't std::move __first twice
   1241  1.1.1.21  mrg 	when returning an empty subrange.
   1242  1.1.1.21  mrg 	(__min_fn::operator()): Don't std::move __comp.
   1243  1.1.1.21  mrg 	(__max_fn::operator()): Likewise.
   1244  1.1.1.21  mrg 	(__minmax_fn::operator()): Likewise.
   1245  1.1.1.21  mrg 
   1246  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1247  1.1.1.21  mrg 
   1248  1.1.1.21  mrg 	Backported from master:
   1249  1.1.1.21  mrg 	2021-08-02  Patrick Palka  <ppalka (a] redhat.com>
   1250  1.1.1.21  mrg 
   1251  1.1.1.21  mrg 	PR libstdc++/101599
   1252  1.1.1.21  mrg 	* include/bits/ranges_algo.h (__reverse_copy_fn::operator()):
   1253  1.1.1.21  mrg 	Add missing std::move in return statement.
   1254  1.1.1.21  mrg 	(__partition_copy_fn::operator()): Rename templtae parameter
   1255  1.1.1.21  mrg 	_O2 to _Out2.  Uglify function parameters out_true and out_false.
   1256  1.1.1.21  mrg 	* include/bits/ranges_algobase.h (__copy_or_move): Add missing
   1257  1.1.1.21  mrg 	std::move to recursive call that unwraps a __normal_iterator
   1258  1.1.1.21  mrg 	output iterator.
   1259  1.1.1.21  mrg 	* testsuite/25_algorithms/copy/constrained.cc (test06): New test.
   1260  1.1.1.21  mrg 	* testsuite/25_algorithms/move/constrained.cc (test05): New test.
   1261  1.1.1.21  mrg 
   1262  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1263  1.1.1.21  mrg 
   1264  1.1.1.21  mrg 	Backported from master:
   1265  1.1.1.21  mrg 	2021-08-02  Patrick Palka  <ppalka (a] redhat.com>
   1266  1.1.1.21  mrg 
   1267  1.1.1.21  mrg 	PR libstdc++/101589
   1268  1.1.1.21  mrg 	* include/std/ranges (lazy_split_view::_InnerIter::base): Make
   1269  1.1.1.21  mrg 	the const& overload unconstrained and return a const reference
   1270  1.1.1.21  mrg 	as per LWG 3533.  Make unconditionally noexcept.
   1271  1.1.1.21  mrg 	(elements_view::base): Revert accidental r12-569 change.
   1272  1.1.1.21  mrg 	(elements_view::_Iterator::base): Make the const& overload
   1273  1.1.1.21  mrg 	unconstrained and return a const reference as per LWG 3533.
   1274  1.1.1.21  mrg 	Make unconditionally noexcept.
   1275  1.1.1.21  mrg 
   1276  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1277  1.1.1.21  mrg 
   1278  1.1.1.21  mrg 	Backported from master:
   1279  1.1.1.21  mrg 	2021-08-02  Patrick Palka  <ppalka (a] redhat.com>
   1280  1.1.1.21  mrg 
   1281  1.1.1.21  mrg 	PR libstdc++/101483
   1282  1.1.1.21  mrg 	* include/std/ranges (join_view::_Iterator::_Iterator): Add
   1283  1.1.1.21  mrg 	missing std::move.
   1284  1.1.1.21  mrg 
   1285  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1286  1.1.1.21  mrg 
   1287  1.1.1.21  mrg 	Backported from master:
   1288  1.1.1.21  mrg 	2021-06-20  Patrick Palka  <ppalka (a] redhat.com>
   1289  1.1.1.21  mrg 
   1290  1.1.1.21  mrg 	* include/std/ranges (split_view::_InnerIter::base): Define as
   1291  1.1.1.21  mrg 	per P2210.
   1292  1.1.1.21  mrg 
   1293  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1294  1.1.1.21  mrg 
   1295  1.1.1.21  mrg 	Backported from master:
   1296  1.1.1.21  mrg 	2021-06-19  Patrick Palka  <ppalka (a] redhat.com>
   1297  1.1.1.21  mrg 
   1298  1.1.1.21  mrg 	* include/std/ranges (transform_view::_Iterator::_S_iter_concept):
   1299  1.1.1.21  mrg 	Consider _Base instead of _Vp as per LWG 3555.
   1300  1.1.1.21  mrg 	(elements_view::_Iterator::_S_iter_concept): Likewise.
   1301  1.1.1.21  mrg 
   1302  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1303  1.1.1.21  mrg 
   1304  1.1.1.21  mrg 	Backported from master:
   1305  1.1.1.21  mrg 	2021-06-19  Patrick Palka  <ppalka (a] redhat.com>
   1306  1.1.1.21  mrg 
   1307  1.1.1.21  mrg 	* include/std/ranges (split_view::_OuterIter::value_type::begin):
   1308  1.1.1.21  mrg 	Remove the non-const overload, and remove the copyable constraint
   1309  1.1.1.21  mrg 	on the const overload as per LWG 3553.
   1310  1.1.1.21  mrg 
   1311  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1312  1.1.1.21  mrg 
   1313  1.1.1.21  mrg 	Backported from master:
   1314  1.1.1.21  mrg 	2021-06-19  Patrick Palka  <ppalka (a] redhat.com>
   1315  1.1.1.21  mrg 
   1316  1.1.1.21  mrg 	* include/bits/stl_iterator.h
   1317  1.1.1.21  mrg 	(__detail::__common_iter_use_postfix_proxy): Add
   1318  1.1.1.21  mrg 	move_constructible constraint as per LWG 3546.
   1319  1.1.1.21  mrg 	(common_iterator::__postfix_proxy): Adjust initializer of
   1320  1.1.1.21  mrg 	_M_keep as per LWG 3546.
   1321  1.1.1.21  mrg 
   1322  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1323  1.1.1.21  mrg 
   1324  1.1.1.21  mrg 	Backported from master:
   1325  1.1.1.21  mrg 	2021-06-18  Patrick Palka  <ppalka (a] redhat.com>
   1326  1.1.1.21  mrg 
   1327  1.1.1.21  mrg 	PR libstdc++/100387
   1328  1.1.1.21  mrg 	* include/bits/ranges_algo.h (__minmax_fn::operator()): Rewrite
   1329  1.1.1.21  mrg 	to limit comparison complexity to 3*N/2.
   1330  1.1.1.21  mrg 	(__minmax_element_fn::operator()): Likewise.
   1331  1.1.1.21  mrg 	(shift_right): Avoid premature std::move of __result.
   1332  1.1.1.21  mrg 	* testsuite/25_algorithms/minmax/constrained.cc (test04, test05):
   1333  1.1.1.21  mrg 	New tests.
   1334  1.1.1.21  mrg 	* testsuite/25_algorithms/minmax_element/constrained.cc (test02):
   1335  1.1.1.21  mrg 	Likewise.
   1336  1.1.1.21  mrg 
   1337  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1338  1.1.1.21  mrg 
   1339  1.1.1.21  mrg 	Backported from master:
   1340  1.1.1.21  mrg 	2021-06-18  Patrick Palka  <ppalka (a] redhat.com>
   1341  1.1.1.21  mrg 
   1342  1.1.1.21  mrg 	* include/std/concepts (convertible_to): Just use declval as per
   1343  1.1.1.21  mrg 	LWG 3557.
   1344  1.1.1.21  mrg 
   1345  1.1.1.21  mrg 2021-10-12  Patrick Palka  <ppalka (a] redhat.com>
   1346  1.1.1.21  mrg 
   1347  1.1.1.21  mrg 	Backported from master:
   1348  1.1.1.21  mrg 	2021-05-21  Patrick Palka  <ppalka (a] redhat.com>
   1349  1.1.1.21  mrg 
   1350  1.1.1.21  mrg 	PR libstdc++/100606
   1351  1.1.1.21  mrg 	* include/std/ranges (drop_while_view::begin): Assert the
   1352  1.1.1.21  mrg 	precondition added by LWG 3490.
   1353  1.1.1.21  mrg 
   1354  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1355  1.1.1.21  mrg 
   1356  1.1.1.21  mrg 	Backported from master:
   1357  1.1.1.21  mrg 	2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1358  1.1.1.21  mrg 
   1359  1.1.1.21  mrg 	* testsuite/20_util/tuple/comparison_operators/overloaded.cc:
   1360  1.1.1.21  mrg 	Restore test for operator<.
   1361  1.1.1.21  mrg 
   1362  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1363  1.1.1.21  mrg 
   1364  1.1.1.21  mrg 	Backported from master:
   1365  1.1.1.21  mrg 	2021-10-08  Jonathan Wakely  <jwakely (a] redhat.com>
   1366  1.1.1.21  mrg 
   1367  1.1.1.21  mrg 	* testsuite/27_io/basic_filebuf/close/81256.cc: Moved to...
   1368  1.1.1.21  mrg 	* testsuite/27_io/basic_filebuf/close/wchar_t/81256.cc: ...here.
   1369  1.1.1.21  mrg 
   1370  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1371  1.1.1.21  mrg 
   1372  1.1.1.21  mrg 	Backported from master:
   1373  1.1.1.21  mrg 	2021-10-05  Jonathan Wakely  <jwakely (a] redhat.com>
   1374  1.1.1.21  mrg 
   1375  1.1.1.21  mrg 	* testsuite/21_strings/basic_string_view/requirements/trivially_copyable.cc:
   1376  1.1.1.21  mrg 	New test.
   1377  1.1.1.21  mrg 	* testsuite/23_containers/span/trivially_copyable.cc: New test.
   1378  1.1.1.21  mrg 
   1379  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1380  1.1.1.21  mrg 
   1381  1.1.1.21  mrg 	Backported from master:
   1382  1.1.1.21  mrg 	2021-08-16  Jonathan Wakely  <jwakely (a] redhat.com>
   1383  1.1.1.21  mrg 
   1384  1.1.1.21  mrg 	* python/Makefile.am [GLIBCXX_BUILD_DEBUG] (install-data-local):
   1385  1.1.1.21  mrg 	Install another copy of the GDB hook.
   1386  1.1.1.21  mrg 	* python/Makefile.in: Regenerate.
   1387  1.1.1.21  mrg 
   1388  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1389  1.1.1.21  mrg 
   1390  1.1.1.21  mrg 	Backported from master:
   1391  1.1.1.21  mrg 	2021-08-17  Jonathan Wakely  <jwakely (a] redhat.com>
   1392  1.1.1.21  mrg 
   1393  1.1.1.21  mrg 	* python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Define.
   1394  1.1.1.21  mrg 	(build_libstdcxx_dictionary): Register printer for
   1395  1.1.1.21  mrg 	std::error_code and std::error_condition.
   1396  1.1.1.21  mrg 	* testsuite/libstdc++-prettyprinters/cxx11.cc: Test it.
   1397  1.1.1.21  mrg 
   1398  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1399  1.1.1.21  mrg 
   1400  1.1.1.21  mrg 	Backported from master:
   1401  1.1.1.21  mrg 	2021-09-23  Jonathan Wakely  <jwakely (a] redhat.com>
   1402  1.1.1.21  mrg 
   1403  1.1.1.21  mrg 	PR libstdc++/102425
   1404  1.1.1.21  mrg 	* src/c++11/system_error.cc
   1405  1.1.1.21  mrg 	(system_error_category::default_error_condition): Add 0 to
   1406  1.1.1.21  mrg 	switch.
   1407  1.1.1.21  mrg 	* testsuite/19_diagnostics/error_category/102425.cc: New test.
   1408  1.1.1.21  mrg 
   1409  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1410  1.1.1.21  mrg 
   1411  1.1.1.21  mrg 	Backported from master:
   1412  1.1.1.21  mrg 	2021-09-16  Jonathan Wakely  <jwakely (a] redhat.com>
   1413  1.1.1.21  mrg 
   1414  1.1.1.21  mrg 	* include/bits/fs_path.h (advance): Remove non-deducible
   1415  1.1.1.21  mrg 	template parameter.
   1416  1.1.1.21  mrg 
   1417  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1418  1.1.1.21  mrg 
   1419  1.1.1.21  mrg 	Backported from master:
   1420  1.1.1.21  mrg 	2021-08-28  Jonathan Wakely  <jwakely (a] redhat.com>
   1421  1.1.1.21  mrg 
   1422  1.1.1.21  mrg 	PR libstdc++/99876
   1423  1.1.1.21  mrg 	* src/c++17/fs_ops.cc (fs::absolute): Call non-throwing form,
   1424  1.1.1.21  mrg 	to avoid unnecessary current_path() call.
   1425  1.1.1.21  mrg 
   1426  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1427  1.1.1.21  mrg 
   1428  1.1.1.21  mrg 	Backported from master:
   1429  1.1.1.21  mrg 	2021-09-17  Jonathan Wakely  <jwakely (a] redhat.com>
   1430  1.1.1.21  mrg 
   1431  1.1.1.21  mrg 	* testsuite/26_numerics/valarray/dr630-3.C: Moved to...
   1432  1.1.1.21  mrg 	* testsuite/26_numerics/valarray/dr630-3.cc: ...here.
   1433  1.1.1.21  mrg 	* testsuite/27_io/basic_iostream/cons/16251.C: Moved to...
   1434  1.1.1.21  mrg 	* testsuite/27_io/basic_iostream/cons/16251.cc: ...here.
   1435  1.1.1.21  mrg 
   1436  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1437  1.1.1.21  mrg 
   1438  1.1.1.21  mrg 	Backported from master:
   1439  1.1.1.21  mrg 	2021-09-16  Jonathan Wakely  <jwakely (a] redhat.com>
   1440  1.1.1.21  mrg 
   1441  1.1.1.21  mrg 	PR libstdc++/102280
   1442  1.1.1.21  mrg 	* include/std/span (span(Range&&)): Add constraint to deduction
   1443  1.1.1.21  mrg 	guide.
   1444  1.1.1.21  mrg 
   1445  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1446  1.1.1.21  mrg 
   1447  1.1.1.21  mrg 	Backported from master:
   1448  1.1.1.21  mrg 	2021-10-01  Jonathan Wakely  <jwakely (a] redhat.com>
   1449  1.1.1.21  mrg 
   1450  1.1.1.21  mrg 	* testsuite/25_algorithms/is_permutation/2.cc: Include <iterator>.
   1451  1.1.1.21  mrg 
   1452  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1453  1.1.1.21  mrg 
   1454  1.1.1.21  mrg 	Backported from master:
   1455  1.1.1.21  mrg 	2021-10-05  Jonathan Wakely  <jwakely (a] redhat.com>
   1456  1.1.1.21  mrg 
   1457  1.1.1.21  mrg 	* testsuite/20_util/integer_comparisons/greater.cc: New test.
   1458  1.1.1.21  mrg 
   1459  1.1.1.21  mrg 2021-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1460  1.1.1.21  mrg 
   1461  1.1.1.21  mrg 	Backported from master:
   1462  1.1.1.21  mrg 	2021-10-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1463  1.1.1.21  mrg 
   1464  1.1.1.21  mrg 	PR libstdc++/102667
   1465  1.1.1.21  mrg 	* include/bits/regex.h (match_result::empty()): Optimize by
   1466  1.1.1.21  mrg 	calling the base function directly.
   1467  1.1.1.21  mrg 	(match_results::end()): Check _Base_type::empty() not empty().
   1468  1.1.1.21  mrg 	* testsuite/28_regex/match_results/102667.C: New test.
   1469  1.1.1.21  mrg 
   1470  1.1.1.21  mrg 2021-08-23  Jonathan Wakely  <jwakely (a] redhat.com>
   1471  1.1.1.21  mrg 
   1472  1.1.1.21  mrg 	Backported from master:
   1473  1.1.1.21  mrg 	2021-08-23  Jonathan Wakely  <jwakely (a] redhat.com>
   1474  1.1.1.21  mrg 
   1475  1.1.1.21  mrg 	* include/std/ranges (basic_istream_view): Add default template
   1476  1.1.1.21  mrg 	argument.
   1477  1.1.1.21  mrg 	* testsuite/std/ranges/istream_view.cc: Check it.
   1478  1.1.1.21  mrg 
   1479  1.1.1.21  mrg 2021-08-19  Jonathan Wakely  <jwakely (a] redhat.com>
   1480  1.1.1.21  mrg 
   1481  1.1.1.21  mrg 	Backported from master:
   1482  1.1.1.21  mrg 	2021-08-19  Jonathan Wakely  <jwakely (a] redhat.com>
   1483  1.1.1.21  mrg 
   1484  1.1.1.21  mrg 	PR libstdc++/100139
   1485  1.1.1.21  mrg 	* doc/xml/manual/status_cxx2020.xml: Add P1739R4 to status table.
   1486  1.1.1.21  mrg 	* doc/html/manual/status.html: Regenerate.
   1487  1.1.1.21  mrg 
   1488  1.1.1.21  mrg 2021-08-17  Thomas Schwinge  <thomas (a] codesourcery.com>
   1489  1.1.1.21  mrg 
   1490  1.1.1.21  mrg 	Backported from master:
   1491  1.1.1.21  mrg 	2021-08-17  Thomas Schwinge  <thomas (a] codesourcery.com>
   1492  1.1.1.21  mrg 
   1493  1.1.1.21  mrg 	* testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose,
   1494  1.1.1.21  mrg 	continued.
   1495  1.1.1.21  mrg 
   1496  1.1.1.21  mrg 2021-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1497  1.1.1.21  mrg 
   1498  1.1.1.21  mrg 	Backported from master:
   1499  1.1.1.21  mrg 	2021-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1500  1.1.1.21  mrg 
   1501  1.1.1.21  mrg 	PR libstdc++/101866
   1502  1.1.1.21  mrg 	* testsuite/experimental/random/randint.cc: Loop and retry if
   1503  1.1.1.21  mrg 	reseed() produces the same sequence.
   1504  1.1.1.21  mrg 
   1505  1.1.1.21  mrg 2021-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1506  1.1.1.21  mrg 
   1507  1.1.1.21  mrg 	Backported from master:
   1508  1.1.1.21  mrg 	2021-07-20  Jonathan Wakely  <jwakely (a] redhat.com>
   1509  1.1.1.21  mrg 
   1510  1.1.1.21  mrg 	PR libstdc++/101510
   1511  1.1.1.21  mrg 	* src/c++17/fs_ops.cc (fs::create_directories): Use status
   1512  1.1.1.21  mrg 	instead of symlink_status.
   1513  1.1.1.21  mrg 	* src/filesystem/ops.cc (fs::create_directories): Likewise.
   1514  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/create_directories.cc:
   1515  1.1.1.21  mrg 	Check symlink to existing directory.
   1516  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/create_directory.cc: Do
   1517  1.1.1.21  mrg 	not test with symlinks on Windows.
   1518  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/create_directories.cc:
   1519  1.1.1.21  mrg 	Check symlink to existing directory.
   1520  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/create_directory.cc:
   1521  1.1.1.21  mrg 	Do not test with symlinks on Windows.
   1522  1.1.1.21  mrg 
   1523  1.1.1.21  mrg 2021-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1524  1.1.1.21  mrg 
   1525  1.1.1.21  mrg 	Backported from master:
   1526  1.1.1.21  mrg 	2021-07-20  Jonathan Wakely  <jwakely (a] redhat.com>
   1527  1.1.1.21  mrg 
   1528  1.1.1.21  mrg 	PR libstdc++/101510
   1529  1.1.1.21  mrg 	* src/c++17/fs_ops.cc (create_dir): Adjust whitespace.
   1530  1.1.1.21  mrg 	* testsuite/27_io/filesystem/operations/create_directory.cc:
   1531  1.1.1.21  mrg 	Test creating directory with name of existing symlink to
   1532  1.1.1.21  mrg 	directory.
   1533  1.1.1.21  mrg 	* testsuite/experimental/filesystem/operations/create_directory.cc:
   1534  1.1.1.21  mrg 	Likewise.
   1535  1.1.1.21  mrg 
   1536  1.1.1.21  mrg 2021-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1537  1.1.1.21  mrg 
   1538  1.1.1.21  mrg 	Backported from master:
   1539  1.1.1.21  mrg 	2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1540  1.1.1.21  mrg 
   1541  1.1.1.21  mrg 	PR libstdc++/101056
   1542  1.1.1.21  mrg 	* libsupc++/compare (compare_partial_order_fallback): Add
   1543  1.1.1.21  mrg 	constraint using reversed parameter order, as per LWG 3465.
   1544  1.1.1.21  mrg 	* testsuite/18_support/comparisons/algorithms/fallback.cc:
   1545  1.1.1.21  mrg 	Adjust expected result.
   1546  1.1.1.21  mrg 
   1547  1.1.1.21  mrg 2021-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1548  1.1.1.21  mrg 
   1549  1.1.1.21  mrg 	Backported from master:
   1550  1.1.1.21  mrg 	2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1551  1.1.1.21  mrg 
   1552  1.1.1.21  mrg 	* libsupc++/compare (__decayed_same_as): New helper concept.
   1553  1.1.1.21  mrg 	(strong_order, weak_order, partial_order): Constrain with new
   1554  1.1.1.21  mrg 	concept instead of using static_assert.
   1555  1.1.1.21  mrg 	(compare_strong_order_fallback, compare_weak_order_fallback)
   1556  1.1.1.21  mrg 	(compare_partial_order_fallback): Likewise. Do not deduce return
   1557  1.1.1.21  mrg 	types. Remove redundant if-constexpr checks.
   1558  1.1.1.21  mrg 	* testsuite/18_support/comparisons/algorithms/fallback.cc: New test.
   1559  1.1.1.21  mrg 
   1560  1.1.1.21  mrg 2021-08-10  Jonathan Wakely  <jwakely (a] redhat.com>
   1561  1.1.1.21  mrg 
   1562  1.1.1.21  mrg 	Backported from master:
   1563  1.1.1.21  mrg 	2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1564  1.1.1.21  mrg 
   1565  1.1.1.21  mrg 	PR libstdc++/100894
   1566  1.1.1.21  mrg 	* include/std/type_traits (__common_ref_impl<X&, Y&>): Only
   1567  1.1.1.21  mrg 	use the type if it's a reference.
   1568  1.1.1.21  mrg 	* testsuite/20_util/common_reference/100894.cc: New test.
   1569  1.1.1.21  mrg 
   1570  1.1.1.21  mrg 2021-07-22  Jonathan Wakely  <jwakely (a] redhat.com>
   1571  1.1.1.21  mrg 
   1572  1.1.1.21  mrg 	Backported from master:
   1573  1.1.1.21  mrg 	2021-04-15  Jonathan Wakely  <jwakely (a] redhat.com>
   1574  1.1.1.21  mrg 
   1575  1.1.1.21  mrg 	PR libstdc++/96657
   1576  1.1.1.21  mrg 	* libsupc++/Makefile.am: Add atomicity.cc here.
   1577  1.1.1.21  mrg 	* src/c++98/Makefile.am: Remove it from here.
   1578  1.1.1.21  mrg 	* libsupc++/Makefile.in: Regenerate.
   1579  1.1.1.21  mrg 	* src/c++98/Makefile.in: Regenerate.
   1580  1.1.1.21  mrg 	* testsuite/18_support/exception_ptr/96657.cc: New test.
   1581  1.1.1.21  mrg 
   1582  1.1.1.21  mrg 2021-07-22  Jonathan Wakely  <jwakely (a] redhat.com>
   1583  1.1.1.21  mrg 
   1584  1.1.1.21  mrg 	Backported from master:
   1585  1.1.1.21  mrg 	2021-06-07  Jonathan Wakely  <jwakely (a] redhat.com>
   1586  1.1.1.21  mrg 
   1587  1.1.1.21  mrg 	PR libstdc++/98842
   1588  1.1.1.21  mrg 	* include/std/optional (operator<=>(const optional<T>& const U&)):
   1589  1.1.1.21  mrg 	Add missing constraint and add workaround for template
   1590  1.1.1.21  mrg 	recursion.
   1591  1.1.1.21  mrg 	* testsuite/20_util/optional/relops/three_way.cc: Check that
   1592  1.1.1.21  mrg 	type without equality comparison cannot be compared when wrapped
   1593  1.1.1.21  mrg 	in std::optional.
   1594  1.1.1.21  mrg 
   1595  1.1.1.21  mrg 2021-07-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1596  1.1.1.21  mrg 
   1597  1.1.1.21  mrg 	Backported from master:
   1598  1.1.1.21  mrg 	2021-07-13  Jonathan Wakely  <jwakely (a] redhat.com>
   1599  1.1.1.21  mrg 
   1600  1.1.1.21  mrg 	PR c++/101361
   1601  1.1.1.21  mrg 	* include/std/string_view (ends_with): Use traits_type::compare
   1602  1.1.1.21  mrg 	directly.
   1603  1.1.1.21  mrg 
   1604  1.1.1.21  mrg 2021-07-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1605  1.1.1.21  mrg 
   1606  1.1.1.21  mrg 	Backported from master:
   1607  1.1.1.21  mrg 	2021-07-12  Jonathan Wakely  <jwakely (a] redhat.com>
   1608  1.1.1.21  mrg 
   1609  1.1.1.21  mrg 	PR libstdc++/101411
   1610  1.1.1.21  mrg 	* include/std/span (as_writable_bytes): Add requires-clause.
   1611  1.1.1.21  mrg 	* testsuite/23_containers/span/101411.cc: New test.
   1612  1.1.1.21  mrg 
   1613  1.1.1.21  mrg 2021-07-06  Avi Kivity  <avi (a] scylladb.com>
   1614  1.1.1.21  mrg 
   1615  1.1.1.21  mrg 	Backported from master:
   1616  1.1.1.21  mrg 	2021-06-07  Avi Kivity  <avi (a] scylladb.com>
   1617  1.1.1.21  mrg 
   1618  1.1.1.21  mrg 	PR libstdc++/100900
   1619  1.1.1.21  mrg 	* include/std/ranges (elements_view::__iter_cat::_S_iter_cat):
   1620  1.1.1.21  mrg 	Add missing typename.
   1621  1.1.1.21  mrg 
   1622  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1623  1.1.1.21  mrg 
   1624  1.1.1.21  mrg 	Backported from master:
   1625  1.1.1.21  mrg 	2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1626  1.1.1.21  mrg 
   1627  1.1.1.21  mrg 	PR libstdc++/95833
   1628  1.1.1.21  mrg 	* include/std/numeric (reduce(Iter, Iter, T, BinaryOp)): Replace
   1629  1.1.1.21  mrg 	incorrect static_assert with ones matching the 'Mandates'
   1630  1.1.1.21  mrg 	conditions in the standard.
   1631  1.1.1.21  mrg 	* testsuite/26_numerics/reduce/95833.cc: New test.
   1632  1.1.1.21  mrg 
   1633  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1634  1.1.1.21  mrg 
   1635  1.1.1.21  mrg 	* include/std/variant (__same_types, __check_visitor_results):
   1636  1.1.1.21  mrg 	Remove.
   1637  1.1.1.21  mrg 
   1638  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1639  1.1.1.21  mrg 
   1640  1.1.1.21  mrg 	Backported from master:
   1641  1.1.1.21  mrg 	2021-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   1642  1.1.1.21  mrg 
   1643  1.1.1.21  mrg 	* include/std/future (promise::set_value): Check for existence
   1644  1.1.1.21  mrg 	of shared state before dereferncing it.
   1645  1.1.1.21  mrg 	(promise::set_exception, promise::set_value_at_thread_exit)
   1646  1.1.1.21  mrg 	(promise::set_exception_at_thread_exit): Likewise.
   1647  1.1.1.21  mrg 	(promise<R&>::set_value, promise<R&>::set_exception)
   1648  1.1.1.21  mrg 	(promise<R&>::set_value_at_thread_exit)
   1649  1.1.1.21  mrg 	(promise<R&>::set_exception_at_thread_exit): Likewise.
   1650  1.1.1.21  mrg 	(promise<void>::set_value, promise<void>::set_exception)
   1651  1.1.1.21  mrg 	(promise<void>::set_value_at_thread_exit)
   1652  1.1.1.21  mrg 	(promise<void>::set_exception_at_thread_exit): Likewise.
   1653  1.1.1.21  mrg 	* testsuite/30_threads/promise/members/at_thread_exit2.cc:
   1654  1.1.1.21  mrg 	Remove unused variable.
   1655  1.1.1.21  mrg 
   1656  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1657  1.1.1.21  mrg 
   1658  1.1.1.21  mrg 	Backported from master:
   1659  1.1.1.21  mrg 	2021-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   1660  1.1.1.21  mrg 
   1661  1.1.1.21  mrg 	* include/bits/basic_string.h (basic_string(const CharT*, const A&)):
   1662  1.1.1.21  mrg 	Do not do arithmetic on null pointer.
   1663  1.1.1.21  mrg 
   1664  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1665  1.1.1.21  mrg 
   1666  1.1.1.21  mrg 	Backported from master:
   1667  1.1.1.21  mrg 	2021-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   1668  1.1.1.21  mrg 
   1669  1.1.1.21  mrg 	* include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp
   1670  1.1.1.21  mrg 	(find_key_pointer(key_const_reference, false_type))
   1671  1.1.1.21  mrg 	(find_key_pointer(key_const_reference, true_type)): Do not
   1672  1.1.1.21  mrg 	dereference null pointer.
   1673  1.1.1.21  mrg 
   1674  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1675  1.1.1.21  mrg 
   1676  1.1.1.21  mrg 	Backported from master:
   1677  1.1.1.21  mrg 	2021-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   1678  1.1.1.21  mrg 
   1679  1.1.1.21  mrg 	* testsuite/20_util/from_chars/3.cc: Use unsigned type to avoid
   1680  1.1.1.21  mrg 	overflow.
   1681  1.1.1.21  mrg 	* testsuite/24_iterators/reverse_iterator/2.cc: Do not add
   1682  1.1.1.21  mrg 	non-zero value to null pointer.
   1683  1.1.1.21  mrg 	* testsuite/25_algorithms/copy_backward/move_iterators/69478.cc:
   1684  1.1.1.21  mrg 	Use past-the-end iterator for result.
   1685  1.1.1.21  mrg 	* testsuite/25_algorithms/move_backward/69478.cc: Likewise.
   1686  1.1.1.21  mrg 	* testsuite/25_algorithms/move_backward/93872.cc: Likewise.
   1687  1.1.1.21  mrg 
   1688  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1689  1.1.1.21  mrg 
   1690  1.1.1.21  mrg 	Backported from master:
   1691  1.1.1.21  mrg 	2021-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   1692  1.1.1.21  mrg 
   1693  1.1.1.21  mrg 	PR libstdc++/100384
   1694  1.1.1.21  mrg 	* include/std/variant (__get_t): New alias template yielding the
   1695  1.1.1.21  mrg 	return type of std::get<N> on a variant.
   1696  1.1.1.21  mrg 	(__visit_result_t): New alias template yielding the result of
   1697  1.1.1.21  mrg 	std::visit.
   1698  1.1.1.21  mrg 	(__same_types): Move into namespace __detail::__variant.
   1699  1.1.1.21  mrg 	(__check_visitor_results): Likewise. Use __invoke_result_t and
   1700  1.1.1.21  mrg 	__get_t.
   1701  1.1.1.21  mrg 	(__check_visitor_result): Remove.
   1702  1.1.1.21  mrg 	(visit): Use __visit_result_t for return type.
   1703  1.1.1.21  mrg 	* testsuite/20_util/variant/100384.cc: New test.
   1704  1.1.1.21  mrg 
   1705  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1706  1.1.1.21  mrg 
   1707  1.1.1.21  mrg 	Backported from master:
   1708  1.1.1.21  mrg 	2021-04-22  Jonathan Wakely  <jwakely (a] redhat.com>
   1709  1.1.1.21  mrg 
   1710  1.1.1.21  mrg 	PR libstdc++/99006
   1711  1.1.1.21  mrg 	* include/bits/shared_ptr.h (allocate_shared): Assert that _Tp
   1712  1.1.1.21  mrg 	is not an array type.
   1713  1.1.1.21  mrg 	* include/bits/shared_ptr_base.h (__allocate_shared): Likewise.
   1714  1.1.1.21  mrg 	* testsuite/20_util/shared_ptr/creation/99006.cc: New test.
   1715  1.1.1.21  mrg 
   1716  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1717  1.1.1.21  mrg 
   1718  1.1.1.21  mrg 	Backported from master:
   1719  1.1.1.21  mrg 	2021-05-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1720  1.1.1.21  mrg 
   1721  1.1.1.21  mrg 	* include/bits/allocator.h (allocator<void>) [C++20]: Add
   1722  1.1.1.21  mrg 	missing noexcept to constructor. Restore missing POCMA and
   1723  1.1.1.21  mrg 	is_always_equal_traits.
   1724  1.1.1.21  mrg 	* include/bits/memoryfwd.h (allocator_traits): Declare.
   1725  1.1.1.21  mrg 	* include/ext/malloc_allocator.h (malloc_allocator::allocate):
   1726  1.1.1.21  mrg 	Add nodiscard attribute. Add static assertion for LWG 3307.
   1727  1.1.1.21  mrg 	* include/ext/new_allocator.h (new_allocator::allocate): Add
   1728  1.1.1.21  mrg 	static assertion for LWG 3307.
   1729  1.1.1.21  mrg 	* testsuite/20_util/allocator/void.cc: Check that converting
   1730  1.1.1.21  mrg 	constructor is noexcept. Check for propagation traits and
   1731  1.1.1.21  mrg 	size_type and difference_type. Check that pointer and
   1732  1.1.1.21  mrg 	const_pointer are gone in C++20.
   1733  1.1.1.21  mrg 
   1734  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1735  1.1.1.21  mrg 
   1736  1.1.1.21  mrg 	Backported from master:
   1737  1.1.1.21  mrg 	2021-05-10  Jonathan Wakely  <jwakely (a] redhat.com>
   1738  1.1.1.21  mrg 
   1739  1.1.1.21  mrg 	* include/bits/shared_ptr_base.h (__shared_count(unique_ptr&&)):
   1740  1.1.1.21  mrg 	Initialize a non-reference deleter from an rvalue, as per LWG
   1741  1.1.1.21  mrg 	3548.
   1742  1.1.1.21  mrg 	(__shared_ptr::_UniqCompatible): Add missing constraint.
   1743  1.1.1.21  mrg 	* testsuite/20_util/shared_ptr/cons/lwg3548.cc: New test.
   1744  1.1.1.21  mrg 	* testsuite/20_util/shared_ptr/cons/unique_ptr_deleter.cc: Check
   1745  1.1.1.21  mrg 	constraints.
   1746  1.1.1.21  mrg 
   1747  1.1.1.21  mrg 2021-06-18  Jonathan Wakely  <jwakely (a] redhat.com>
   1748  1.1.1.21  mrg 
   1749  1.1.1.21  mrg 	Backported from master:
   1750  1.1.1.21  mrg 	2021-06-17  Jonathan Wakely  <jwakely (a] redhat.com>
   1751  1.1.1.21  mrg 
   1752  1.1.1.21  mrg 	PR libstdc++/91488
   1753  1.1.1.21  mrg 	* include/bits/basic_string.h (__cpp_lib_constexpr_string): Only
   1754  1.1.1.21  mrg 	define C++20 value when std::is_constant_evaluated is available.
   1755  1.1.1.21  mrg 	* include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
   1756  1.1.1.21  mrg 	Likewise.
   1757  1.1.1.21  mrg 	(__constant_string_p, __constant_array_p): Give external
   1758  1.1.1.21  mrg 	linkage.
   1759  1.1.1.21  mrg 	* include/std/version (__cpp_lib_constexpr_char_traits)
   1760  1.1.1.21  mrg 	(__cpp_lib_constexpr_string): Only define C++20 values when
   1761  1.1.1.21  mrg 	is_constant_evaluated is available.
   1762  1.1.1.21  mrg 
   1763  1.1.1.21  mrg 2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1764  1.1.1.21  mrg 
   1765  1.1.1.21  mrg 	Backported from master:
   1766  1.1.1.21  mrg 	2021-05-10  Jonathan Wakely  <jwakely (a] redhat.com>
   1767  1.1.1.21  mrg 
   1768  1.1.1.21  mrg 	* testsuite/20_util/scoped_allocator/69293_neg.cc: Add dg-error
   1769  1.1.1.21  mrg 	for additional errors in C++20.
   1770  1.1.1.21  mrg 	* testsuite/20_util/uses_allocator/69293_neg.cc: Likewise.
   1771  1.1.1.21  mrg 	* testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
   1772  1.1.1.21  mrg 
   1773  1.1.1.21  mrg 2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1774  1.1.1.21  mrg 
   1775  1.1.1.21  mrg 	Backported from master:
   1776  1.1.1.21  mrg 	2021-06-09  Jonathan Wakely  <jwakely (a] redhat.com>
   1777  1.1.1.21  mrg 
   1778  1.1.1.21  mrg 	PR libstdc++/100982
   1779  1.1.1.21  mrg 	* include/std/optional (optional::operator=(const optional<U>&)):
   1780  1.1.1.21  mrg 	Fix value category used in is_assignable check.
   1781  1.1.1.21  mrg 	* testsuite/20_util/optional/assignment/100982.cc: New test.
   1782  1.1.1.21  mrg 
   1783  1.1.1.21  mrg 2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1784  1.1.1.21  mrg 
   1785  1.1.1.21  mrg 	Backported from master:
   1786  1.1.1.21  mrg 	2021-06-14  Jonathan Wakely  <jwakely (a] redhat.com>
   1787  1.1.1.21  mrg 
   1788  1.1.1.21  mrg 	PR libstdc++/101034
   1789  1.1.1.21  mrg 	* include/std/any (any(in_place_t<T>, initializer_list<U>, A&&...))
   1790  1.1.1.21  mrg 	(any::emplace<T>(initializer_list<U>, A&&...)): Fix constraint
   1791  1.1.1.21  mrg 	to use lvalue.
   1792  1.1.1.21  mrg 	* testsuite/20_util/any/cons/101034.cc: New test.
   1793  1.1.1.21  mrg 
   1794  1.1.1.21  mrg 2021-06-10  Patrick Palka  <ppalka (a] redhat.com>
   1795  1.1.1.21  mrg 
   1796  1.1.1.21  mrg 	Backported from master:
   1797  1.1.1.21  mrg 	2021-06-03  Patrick Palka  <ppalka (a] redhat.com>
   1798  1.1.1.21  mrg 
   1799  1.1.1.21  mrg 	PR libstdc++/100770
   1800  1.1.1.21  mrg 	* include/bits/ranges_algo.h (__detail::__can_reread_output):
   1801  1.1.1.21  mrg 	Factor out this concept from ...
   1802  1.1.1.21  mrg 	(__unique_copy_fn::operator()): ... here.  Use the concept
   1803  1.1.1.21  mrg 	throughout.
   1804  1.1.1.21  mrg 	* testsuite/std/ranges/range.cc: Remove now ill-formed use
   1805  1.1.1.21  mrg 	of range_value_t on an output_range.
   1806  1.1.1.21  mrg 	* testsuite/util/testsuite_iterators.h (output_iterator_wrapper):
   1807  1.1.1.21  mrg 	Define value_type, pointer and reference member types to void.
   1808  1.1.1.21  mrg 
   1809  1.1.1.21  mrg 2021-06-10  Patrick Palka  <ppalka (a] redhat.com>
   1810  1.1.1.21  mrg 
   1811  1.1.1.21  mrg 	Backported from master:
   1812  1.1.1.21  mrg 	2021-05-21  Patrick Palka  <ppalka (a] redhat.com>
   1813  1.1.1.21  mrg 
   1814  1.1.1.21  mrg 	PR libstdc++/100690
   1815  1.1.1.21  mrg 	* include/std/ranges (iota_view::_Sentinel::_M_distance_from):
   1816  1.1.1.21  mrg 	Split out this member function from ...
   1817  1.1.1.21  mrg 	(iota_view::_Sentinel::operator-): ... here, for sake of access
   1818  1.1.1.21  mrg 	control.
   1819  1.1.1.21  mrg 	* testsuite/std/ranges/iota/iota_view.cc (test05): New test.
   1820  1.1.1.21  mrg 
   1821  1.1.1.21  mrg 2021-06-10  Patrick Palka  <ppalka (a] redhat.com>
   1822  1.1.1.21  mrg 
   1823  1.1.1.21  mrg 	Backported from master:
   1824  1.1.1.21  mrg 	2021-05-06  Patrick Palka  <ppalka (a] redhat.com>
   1825  1.1.1.21  mrg 
   1826  1.1.1.21  mrg 	* include/std/ranges (filter_view::_Iterator::base): Make the
   1827  1.1.1.21  mrg 	const& overload unconstrained and return a const reference as
   1828  1.1.1.21  mrg 	per LWG 3533.  Make unconditionally noexcept.
   1829  1.1.1.21  mrg 	(transform_view::_Iterator::base): Likewise.
   1830  1.1.1.21  mrg 	(elements_view::_Iterator::base): Likewise.
   1831  1.1.1.21  mrg 
   1832  1.1.1.21  mrg 2021-06-10  Patrick Palka  <ppalka (a] redhat.com>
   1833  1.1.1.21  mrg 
   1834  1.1.1.21  mrg 	Backported from master:
   1835  1.1.1.21  mrg 	2021-05-06  Patrick Palka  <ppalka (a] redhat.com>
   1836  1.1.1.21  mrg 
   1837  1.1.1.21  mrg 	* include/bits/stl_iterator.h (move_iterator::base): Make the
   1838  1.1.1.21  mrg 	const& overload unconstrained and return a const reference as
   1839  1.1.1.21  mrg 	per LWG 3391.  Make unconditionally noexcept.
   1840  1.1.1.21  mrg 	(counted_iterator::base): Likewise.
   1841  1.1.1.21  mrg 	* testsuite/24_iterators/move_iterator/lwg3391.cc: New test.
   1842  1.1.1.21  mrg 	* testsuite/24_iterators/move_iterator/move_only.cc: Adjust
   1843  1.1.1.21  mrg 	has_member_base concept to decay-copy the result of base().
   1844  1.1.1.21  mrg 
   1845  1.1.1.21  mrg 2021-06-10  Patrick Palka  <ppalka (a] redhat.com>
   1846  1.1.1.21  mrg 
   1847  1.1.1.21  mrg 	Backported from master:
   1848  1.1.1.21  mrg 	2021-05-18  Patrick Palka  <ppalka (a] redhat.com>
   1849  1.1.1.21  mrg 
   1850  1.1.1.21  mrg 	PR libstdc++/100631
   1851  1.1.1.21  mrg 	* include/std/ranges (elements_view::_Sentinel::operator-): Use
   1852  1.1.1.21  mrg 	_M_distance_from in the other operator- overload too.
   1853  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/elements.cc (test06): Augment test.
   1854  1.1.1.21  mrg 
   1855  1.1.1.21  mrg 2021-06-10  Patrick Palka  <ppalka (a] redhat.com>
   1856  1.1.1.21  mrg 
   1857  1.1.1.21  mrg 	Backported from master:
   1858  1.1.1.21  mrg 	2021-05-18  Patrick Palka  <ppalka (a] redhat.com>
   1859  1.1.1.21  mrg 
   1860  1.1.1.21  mrg 	PR libstdc++/100631
   1861  1.1.1.21  mrg 	* include/std/ranges (elements_view::_Iterator): Also befriend
   1862  1.1.1.21  mrg 	_Sentinel<!_Const>.
   1863  1.1.1.21  mrg 	(elements_view::_Sentinel::_M_equal): Templatize.
   1864  1.1.1.21  mrg 	(elements_view::_Sentinel::_M_distance_from): Split out from ...
   1865  1.1.1.21  mrg 	(elements_view::_Sentinel::operator-): ... here.  Depend on
   1866  1.1.1.21  mrg 	_Base2 instead of _Base in the return type.
   1867  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/elements.cc (test06, test07):
   1868  1.1.1.21  mrg 	New tests.
   1869  1.1.1.21  mrg 
   1870  1.1.1.21  mrg 2021-06-10  Patrick Palka  <ppalka (a] redhat.com>
   1871  1.1.1.21  mrg 
   1872  1.1.1.21  mrg 	Backported from master:
   1873  1.1.1.21  mrg 	2021-05-20  Patrick Palka  <ppalka (a] redhat.com>
   1874  1.1.1.21  mrg 
   1875  1.1.1.21  mrg 	PR libstdc++/100639
   1876  1.1.1.21  mrg 	* include/bits/stl_iterator.h (reverse_iterator::difference_type):
   1877  1.1.1.21  mrg 	In C++20 mode, define in terms of iter_difference_t as per P0896R4.
   1878  1.1.1.21  mrg 	(reverse_iterator::reference): Likewise, but with iter_reference_t.
   1879  1.1.1.21  mrg 	(reverse_iterator::value_type): Likewise, but with iter_value_t.
   1880  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/reverse.cc (test08): New test.
   1881  1.1.1.21  mrg 	* testsuite/24_iterators/reverse_iterator/100639.cc: New test.
   1882  1.1.1.21  mrg 
   1883  1.1.1.21  mrg 2021-06-03  Jonathan Wakely  <jwakely (a] redhat.com>
   1884  1.1.1.21  mrg 
   1885  1.1.1.21  mrg 	Backported from master:
   1886  1.1.1.21  mrg 	2021-06-01  Jonathan Wakely  <jwakely (a] redhat.com>
   1887  1.1.1.21  mrg 
   1888  1.1.1.21  mrg 	PR libstdc++/100833
   1889  1.1.1.21  mrg 	* include/bits/range_access.h (ranges::advance(iter, n, sentinel)):
   1890  1.1.1.21  mrg 	Fix return value for no-op case.
   1891  1.1.1.21  mrg 	* testsuite/24_iterators/range_operations/advance.cc: Test
   1892  1.1.1.21  mrg 	return values of three-argument overload.
   1893  1.1.1.21  mrg 
   1894  1.1.1.21  mrg 2021-06-03  Jonathan Wakely  <jwakely (a] redhat.com>
   1895  1.1.1.21  mrg 
   1896  1.1.1.21  mrg 	Backported from master:
   1897  1.1.1.21  mrg 	2021-05-26  Jonathan Wakely  <jwakely (a] redhat.com>
   1898  1.1.1.21  mrg 
   1899  1.1.1.21  mrg 	PR libstdc++/100768
   1900  1.1.1.21  mrg 	* include/bits/range_access.h (ranges::advance)
   1901  1.1.1.21  mrg 	(ranges::distance, ranges::next, ranges::prev): Replace
   1902  1.1.1.21  mrg 	function templates with function objects.
   1903  1.1.1.21  mrg 	* testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
   1904  1.1.1.21  mrg 	Adjust for changes to function objects.
   1905  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/elements.cc: Add using
   1906  1.1.1.21  mrg 	declarations for names from namespace ranges.
   1907  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/transform.cc: Likewise.
   1908  1.1.1.21  mrg 	* testsuite/24_iterators/range_operations/100768.cc: New test.
   1909  1.1.1.21  mrg 
   1910  1.1.1.21  mrg 2021-06-03  Jonathan Wakely  <jwakely (a] redhat.com>
   1911  1.1.1.21  mrg 
   1912  1.1.1.21  mrg 	Backported from master:
   1913  1.1.1.21  mrg 	2021-06-01  Jonathan Wakely  <jwakely (a] redhat.com>
   1914  1.1.1.21  mrg 
   1915  1.1.1.21  mrg 	PR libstdc++/99453
   1916  1.1.1.21  mrg 	* python/Makefile.am: Use archive name for printer hook if no
   1917  1.1.1.21  mrg 	dynamic library name is available.
   1918  1.1.1.21  mrg 	* python/Makefile.in: Regenerate.
   1919  1.1.1.21  mrg 
   1920  1.1.1.21  mrg 2021-06-03  Philippe Blain  <levraiphilippeblain (a] gmail.com>
   1921  1.1.1.21  mrg 
   1922  1.1.1.21  mrg 	Backported from master:
   1923  1.1.1.21  mrg 	2021-04-21  Philippe Blain  <levraiphilippeblain (a] gmail.com>
   1924  1.1.1.21  mrg 		    Jonathan Wakely  <jwakely (a] redhat.com>
   1925  1.1.1.21  mrg 
   1926  1.1.1.21  mrg 	PR libstdc++/99453
   1927  1.1.1.21  mrg 	* python/Makefile.am: Install libstdc++*-gdb.py more robustly.
   1928  1.1.1.21  mrg 	* python/Makefile.in: Regenerate.
   1929  1.1.1.21  mrg 
   1930  1.1.1.21  mrg 2021-05-17  Jonathan Wakely  <jwakely (a] redhat.com>
   1931  1.1.1.21  mrg 
   1932  1.1.1.21  mrg 	PR libstdc++/100630
   1933  1.1.1.21  mrg 	* include/bits/fs_path.h (__is_constructible_from): Test
   1934  1.1.1.21  mrg 	construction from a const lvalue, not an rvalue.
   1935  1.1.1.21  mrg 	* include/experimental/bits/fs_path.h (__is_constructible_from):
   1936  1.1.1.21  mrg 	Likewise.
   1937  1.1.1.21  mrg 	* testsuite/27_io/filesystem/path/construct/100630.cc: New test.
   1938  1.1.1.21  mrg 	* testsuite/experimental/filesystem/path/construct/100630.cc:
   1939  1.1.1.21  mrg 	New test.
   1940  1.1.1.21  mrg 
   1941  1.1.1.21  mrg 2021-05-17  Jonathan Wakely  <jwakely (a] redhat.com>
   1942  1.1.1.21  mrg 
   1943  1.1.1.21  mrg 	Backported from master:
   1944  1.1.1.21  mrg 	2021-03-11  Jonathan Wakely  <jwakely (a] redhat.com>
   1945  1.1.1.21  mrg 
   1946  1.1.1.21  mrg 	* python/libstdcxx/v6/printers.py (find_type): Use tag attribute
   1947  1.1.1.21  mrg 	instead of unqualified() method.
   1948  1.1.1.21  mrg 
   1949  1.1.1.21  mrg 2021-05-05  Patrick Palka  <ppalka (a] redhat.com>
   1950  1.1.1.21  mrg 
   1951  1.1.1.21  mrg 	Backported from master:
   1952  1.1.1.21  mrg 	2021-05-05  Patrick Palka  <ppalka (a] redhat.com>
   1953  1.1.1.21  mrg 
   1954  1.1.1.21  mrg 	* include/std/ranges (transform_view::_Iterator::iter_swap):
   1955  1.1.1.21  mrg 	Remove as per LWG 3520.
   1956  1.1.1.21  mrg 	(join_view::_Iterator::iter_swap): Add indirectly_swappable
   1957  1.1.1.21  mrg 	constraint as per LWG 3517.
   1958  1.1.1.21  mrg 
   1959  1.1.1.21  mrg 2021-05-04  Patrick Palka  <ppalka (a] redhat.com>
   1960  1.1.1.21  mrg 
   1961  1.1.1.21  mrg 	Backported from master:
   1962  1.1.1.21  mrg 	2021-04-30  Patrick Palka  <ppalka (a] redhat.com>
   1963  1.1.1.21  mrg 
   1964  1.1.1.21  mrg 	* include/std/ranges (split_view::_InnerIter::operator++):
   1965  1.1.1.21  mrg 	Depend on _Base instead of _Vp directly, as per LWG 3532.
   1966  1.1.1.21  mrg 
   1967  1.1.1.21  mrg 2021-05-04  Patrick Palka  <ppalka (a] redhat.com>
   1968  1.1.1.21  mrg 
   1969  1.1.1.21  mrg 	Backported from master:
   1970  1.1.1.21  mrg 	2021-04-20  Patrick Palka  <ppalka (a] redhat.com>
   1971  1.1.1.21  mrg 
   1972  1.1.1.21  mrg 	PR libstdc++/95983
   1973  1.1.1.21  mrg 	* include/bits/stl_iterator.h (__detail::__move_iter_cat):
   1974  1.1.1.21  mrg 	Define.
   1975  1.1.1.21  mrg 	(move_iterator): Derive from the above in C++20 in order to
   1976  1.1.1.21  mrg 	conditionally define iterator_category as per P2259.
   1977  1.1.1.21  mrg 	(move_iterator::__base_cat): No longer used, so remove.
   1978  1.1.1.21  mrg 	(move_iterator::iterator_category): Remove in C++20.
   1979  1.1.1.21  mrg 	(__detail::__common_iter_use_postfix_proxy): Define.
   1980  1.1.1.21  mrg 	(common_iterator::_Proxy): Rename to ...
   1981  1.1.1.21  mrg 	(common_iterator:__arrow_proxy): ... this.
   1982  1.1.1.21  mrg 	(common_iterator::__postfix_proxy): Define as per P2259.
   1983  1.1.1.21  mrg 	(common_iterator::operator->): Adjust.
   1984  1.1.1.21  mrg 	(common_iterator::operator++): Adjust as per P2259.
   1985  1.1.1.21  mrg 	(iterator_traits<common_iterator>::_S_iter_cat): Define.
   1986  1.1.1.21  mrg 	(iterator_traits<common_iterator>::iterator_category): Change as
   1987  1.1.1.21  mrg 	per P2259.
   1988  1.1.1.21  mrg 	(__detail::__counted_iter_value_type): Define.
   1989  1.1.1.21  mrg 	(__detail::__counted_iter_concept): Define.
   1990  1.1.1.21  mrg 	(__detail::__counted_iter_cat): Define.
   1991  1.1.1.21  mrg 	(counted_iterator): Derive from the above three classes in order
   1992  1.1.1.21  mrg 	to conditionally define value_type, iterator_concept and
   1993  1.1.1.21  mrg 	iterator category respectively as per P2259.
   1994  1.1.1.21  mrg 	(counted_iterator::operator->): Define as per P2259.
   1995  1.1.1.21  mrg 	(incrementable_traits<counted_iterator>): Remove as per P2259.
   1996  1.1.1.21  mrg 	(iterator_traits<counted_iterator>): Adjust as per P2259.
   1997  1.1.1.21  mrg 	* include/std/ranges (__detail::__iota_view_iter_cat): Define.
   1998  1.1.1.21  mrg 	(iota_view::_Iterator): Derive from the above in order to
   1999  1.1.1.21  mrg 	conditionally define iterator_category as per P2259.
   2000  1.1.1.21  mrg 	(iota_view::_S_iter_cat): Rename to ...
   2001  1.1.1.21  mrg 	(iota_view::_S_iter_concept): ... this.
   2002  1.1.1.21  mrg 	(iota_view::iterator_concept): Use it to apply LWG 3291 changes.
   2003  1.1.1.21  mrg 	(iota_view::iterator_category): Remove.
   2004  1.1.1.21  mrg 	(__detail::__filter_view_iter_cat): Define.
   2005  1.1.1.21  mrg 	(filter_view::_Iterator): Derive from the above in order to
   2006  1.1.1.21  mrg 	conditionally define iterator_category as per P2259.
   2007  1.1.1.21  mrg 	(filter_view::_Iterator): Move to struct __filter_view_iter_cat.
   2008  1.1.1.21  mrg 	(filter_view::_Iterator::iterator_category): Remove.
   2009  1.1.1.21  mrg 	(transform_view::_Base): Define.
   2010  1.1.1.21  mrg 	(transform_view::__iter_cat): Define.
   2011  1.1.1.21  mrg 	(transform_view::_Iterator): Derive from the above in order to
   2012  1.1.1.21  mrg 	conditionally define iterator_category as per P2259.
   2013  1.1.1.21  mrg 	(transform_view::_Iterator::_Base): Just alias
   2014  1.1.1.21  mrg 	transform_view::_Base.
   2015  1.1.1.21  mrg 	(transform_view::_Iterator::_S_iter_cat): Move to struct
   2016  1.1.1.21  mrg 	transform_view::__iter_cat.
   2017  1.1.1.21  mrg 	(transform_view::_Iterator::iterator_category): Remove.
   2018  1.1.1.21  mrg 	(transform_view::_Sentinel::_Base): Just alias
   2019  1.1.1.21  mrg 	transform_view::_Base.
   2020  1.1.1.21  mrg 	(join_view::_Base): Define.
   2021  1.1.1.21  mrg 	(join_view::_Outer_iter): Define.
   2022  1.1.1.21  mrg 	(join_view::_Inner_iter): Define.
   2023  1.1.1.21  mrg 	(join_view::_S_ref_is_glvalue): Define.
   2024  1.1.1.21  mrg 	(join_view::__iter_cat): Define.
   2025  1.1.1.21  mrg 	(join_view::_Iterator): Derive from it in order to conditionally
   2026  1.1.1.21  mrg 	define iterator_category as per P2259.
   2027  1.1.1.21  mrg 	(join_view::_Iterator::_Base): Just alias join_view::_Base.
   2028  1.1.1.21  mrg 	(join_view::_Iterator::_S_ref_is_glvalue): Just alias
   2029  1.1.1.21  mrg 	join_view::_S_ref_is_glvalue.
   2030  1.1.1.21  mrg 	(join_view::_Iterator::_S_iter_cat): Move to struct
   2031  1.1.1.21  mrg 	transform_view::__iter_cat.
   2032  1.1.1.21  mrg 	(join_view::_Iterator::_Outer_iter): Just alias
   2033  1.1.1.21  mrg 	join_view::_Outer_iter.
   2034  1.1.1.21  mrg 	(join_view::_Iterator::_Inner_iter): Just alias
   2035  1.1.1.21  mrg 	join_view::_Inner_iter.
   2036  1.1.1.21  mrg 	(join_view::_Iterator::iterator_category): Remove.
   2037  1.1.1.21  mrg 	(join_view::_Sentinel::_Base): Just alias join_view::_Base.
   2038  1.1.1.21  mrg 	(__detail::__split_view_outer_iter_cat): Define.
   2039  1.1.1.21  mrg 	(__detail::__split_view_inner_iter_cat): Define.
   2040  1.1.1.21  mrg 	(split_view::_Base): Define.
   2041  1.1.1.21  mrg 	(split_view::_Outer_iter): Derive from __split_view_outer_iter_cat
   2042  1.1.1.21  mrg 	in order to conditionally define iterator_category as per P2259.
   2043  1.1.1.21  mrg 	(split_view::_Outer_iter::iterator_category): Remove.
   2044  1.1.1.21  mrg 	(split_view::_Inner_iter): Derive from __split_view_inner_iter_cat
   2045  1.1.1.21  mrg 	in order to conditionally define iterator_category as per P2259.
   2046  1.1.1.21  mrg 	(split_view::_Inner_iter::_S_iter_cat): Move to
   2047  1.1.1.21  mrg 	__split_view_inner_iter_cat.
   2048  1.1.1.21  mrg 	(split_view::_Inner_iter::iterator_category): Remove.
   2049  1.1.1.21  mrg 	(elements_view::_Base): Define.
   2050  1.1.1.21  mrg 	(elements_view::__iter_cat): Define.
   2051  1.1.1.21  mrg 	(elements_view::_Iterator): Derive from the above in order to
   2052  1.1.1.21  mrg 	conditionall define iterator_category as per P2259.
   2053  1.1.1.21  mrg 	(elements_view::_Iterator::_Base): Just alias
   2054  1.1.1.21  mrg 	elements_view::_Base.
   2055  1.1.1.21  mrg 	(elements_view::_Iterator::_S_iter_concept)
   2056  1.1.1.21  mrg 	(elements_view::_Iterator::iterator_concept): Define as per
   2057  1.1.1.21  mrg 	P2259.
   2058  1.1.1.21  mrg 	(elements_view::_Iterator::iterator_category): Remove.
   2059  1.1.1.21  mrg 	(elements_view::_Sentinel::_Base): Just alias
   2060  1.1.1.21  mrg 	elements_view::_Base.
   2061  1.1.1.21  mrg 	* testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
   2062  1.1.1.21  mrg 	Adjust constraints on iterator_traits<counted_iterator>.
   2063  1.1.1.21  mrg 	* testsuite/std/ranges/p2259.cc: New test.
   2064  1.1.1.21  mrg 
   2065  1.1.1.21  mrg 2021-05-03  Patrick Palka  <ppalka (a] redhat.com>
   2066  1.1.1.21  mrg 
   2067  1.1.1.21  mrg 	Backported from master:
   2068  1.1.1.21  mrg 	2021-04-27  Patrick Palka  <ppalka (a] redhat.com>
   2069  1.1.1.21  mrg 
   2070  1.1.1.21  mrg 	PR libstdc++/100290
   2071  1.1.1.21  mrg 	* include/std/ranges (join_view::_Iterator::operator++): Correct
   2072  1.1.1.21  mrg 	the return type of the lambda to avoid returning a copy of
   2073  1.1.1.21  mrg 	_M_parent->_M_inner.
   2074  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/join.cc (test10): New test.
   2075  1.1.1.21  mrg 
   2076  1.1.1.21  mrg 2021-04-30  Jonathan Wakely  <jwakely (a] redhat.com>
   2077  1.1.1.21  mrg 
   2078  1.1.1.21  mrg 	Backported from master:
   2079  1.1.1.21  mrg 	2021-04-30  Jonathan Wakely  <jwakely (a] redhat.com>
   2080  1.1.1.21  mrg 
   2081  1.1.1.21  mrg 	* include/bits/basic_string.h (__cpp_lib_constexpr_string):
   2082  1.1.1.21  mrg 	Only define for C++17 and later.
   2083  1.1.1.21  mrg 
   2084  1.1.1.21  mrg 2021-04-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2085  1.1.1.21  mrg 
   2086  1.1.1.21  mrg 	Backported from master:
   2087  1.1.1.21  mrg 	2021-04-26  Jonathan Wakely  <jwakely (a] redhat.com>
   2088  1.1.1.21  mrg 
   2089  1.1.1.21  mrg 	PR libstdc++/100259
   2090  1.1.1.21  mrg 	* include/experimental/internet (net::ip::make_error_code)
   2091  1.1.1.21  mrg 	(net::ip::make_error_condition, net::ip::make_network_v4)
   2092  1.1.1.21  mrg 	(net::ip::operator==(const udp&, const udp&)): Add 'inline'.
   2093  1.1.1.21  mrg 
   2094  1.1.1.21  mrg 2021-04-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2095  1.1.1.21  mrg 
   2096  1.1.1.21  mrg 	Backported from master:
   2097  1.1.1.21  mrg 	2021-04-28  Jonathan Wakely  <jwakely (a] redhat.com>
   2098  1.1.1.21  mrg 
   2099  1.1.1.21  mrg 	* include/bits/basic_string.h (__cpp_lib_constexpr_string): Define.
   2100  1.1.1.21  mrg 	* include/std/version (__cpp_lib_constexpr_string): Define.
   2101  1.1.1.21  mrg 	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
   2102  1.1.1.21  mrg 	Check for __cpp_lib_constexpr_string.
   2103  1.1.1.21  mrg 	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
   2104  1.1.1.21  mrg 	Likewise.
   2105  1.1.1.21  mrg 	* testsuite/21_strings/char_traits/requirements/version.cc: New test.
   2106  1.1.1.21  mrg 
   2107  1.1.1.21  mrg 2021-04-21  Jonathan Wakely  <jwakely (a] redhat.com>
   2108  1.1.1.21  mrg 
   2109  1.1.1.21  mrg 	PR libstdc++/100180
   2110  1.1.1.21  mrg 	* testsuite/experimental/net/internet/address/v6/members.cc:
   2111  1.1.1.21  mrg 	Require gthreads.
   2112  1.1.1.21  mrg 
   2113  1.1.1.21  mrg 2021-04-21  Patrick Palka  <ppalka (a] redhat.com>
   2114  1.1.1.21  mrg 
   2115  1.1.1.21  mrg 	Backported from master:
   2116  1.1.1.21  mrg 	2021-04-08  Patrick Palka  <ppalka (a] redhat.com>
   2117  1.1.1.21  mrg 
   2118  1.1.1.21  mrg 	* include/std/ranges (__detail::find): Define.
   2119  1.1.1.21  mrg 	(split_view::_OuterIter::operator++): Apply proposed resolution
   2120  1.1.1.21  mrg 	of LWG 3505.
   2121  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/split.cc (test10): New test.
   2122  1.1.1.21  mrg 
   2123  1.1.1.21  mrg 2021-04-21  Patrick Palka  <ppalka (a] redhat.com>
   2124  1.1.1.21  mrg 
   2125  1.1.1.21  mrg 	Backported from master:
   2126  1.1.1.21  mrg 	2021-04-08  Patrick Palka  <ppalka (a] redhat.com>
   2127  1.1.1.21  mrg 
   2128  1.1.1.21  mrg 	* include/std/ranges (__detail::find_if): Simplify.
   2129  1.1.1.21  mrg 	(__detail::find_if_not): Likewise.
   2130  1.1.1.21  mrg 	(__detail::min): Remove.
   2131  1.1.1.21  mrg 	(__detail::mismatch): Simplify.
   2132  1.1.1.21  mrg 	(take_view::size): Use std::min instead of __detail::min.
   2133  1.1.1.21  mrg 
   2134  1.1.1.21  mrg 2021-04-21  Patrick Palka  <ppalka (a] redhat.com>
   2135  1.1.1.21  mrg 
   2136  1.1.1.21  mrg 	Backported from master:
   2137  1.1.1.21  mrg 	2021-04-08  Patrick Palka  <ppalka (a] redhat.com>
   2138  1.1.1.21  mrg 
   2139  1.1.1.21  mrg 	* include/std/ranges (__detail::__returnable_element): New
   2140  1.1.1.21  mrg 	concept.
   2141  1.1.1.21  mrg 	(elements_view): Use this concept in its constraints.  Add
   2142  1.1.1.21  mrg 	missing private access specifier.
   2143  1.1.1.21  mrg 	(elements_view::_S_get_element): Define as per LWG 3502.
   2144  1.1.1.21  mrg 	(elements_view::operator*, elements_view::operator[]): Use
   2145  1.1.1.21  mrg 	_S_get_element.
   2146  1.1.1.21  mrg 	(elements_view::operator++): Remove unnecessary constraint
   2147  1.1.1.21  mrg 	as per LWG 3492.
   2148  1.1.1.21  mrg 	* testsuite/std/ranges/adaptors/elements.cc (test05): New test.
   2149  1.1.1.21  mrg 
   2150  1.1.1.21  mrg 2021-04-21  Patrick Palka  <ppalka (a] redhat.com>
   2151  1.1.1.21  mrg 
   2152  1.1.1.21  mrg 	Backported from master:
   2153  1.1.1.21  mrg 	2020-10-31  Patrick Palka  <ppalka (a] redhat.com>
   2154  1.1.1.21  mrg 
   2155  1.1.1.21  mrg 	PR libstdc++/97600
   2156  1.1.1.21  mrg 	* include/std/ranges (basic_istream_view::begin): Initialize
   2157  1.1.1.21  mrg 	_Iterator from 'this' instead of '*this'.
   2158  1.1.1.21  mrg 	(basic_istream_view::_Iterator::_Iterator): Adjust constructor
   2159  1.1.1.21  mrg 	accordingly.
   2160  1.1.1.21  mrg 	(filter_view::_Iterator::_Iterator): Take a filter_view*
   2161  1.1.1.21  mrg 	argument instead of a filter_view& argument.
   2162  1.1.1.21  mrg 	(filter_view::_Sentinel::_Sentinel): Likewise.
   2163  1.1.1.21  mrg 	(filter_view::begin): Initialize _Iterator from 'this' instead
   2164  1.1.1.21  mrg 	of '*this'.
   2165  1.1.1.21  mrg 	(filter_view::end): Likewise.
   2166  1.1.1.21  mrg 	(transform_view::_Iterator::_Iterator): Take a _Parent* instead
   2167  1.1.1.21  mrg 	of a _Parent&.
   2168  1.1.1.21  mrg 	(filter_view::_Iterator::operator+): Adjust accordingly.
   2169  1.1.1.21  mrg 	(filter_view::_Iterator::operator-): Likewise.
   2170  1.1.1.21  mrg 	(filter_view::begin): Initialize _Iterator from 'this' instead
   2171  1.1.1.21  mrg 	of '*this'.
   2172  1.1.1.21  mrg 	(filter_view::end): Likewise.
   2173  1.1.1.21  mrg 	(join_view::_Iterator): Take a _Parent* instead of a _Parent&.
   2174  1.1.1.21  mrg 	(join_view::_Sentinel): Likewise.
   2175  1.1.1.21  mrg 	(join_view::begin): Initialize _Iterator from 'this' instead of
   2176  1.1.1.21  mrg 	'*this'.
   2177  1.1.1.21  mrg 	(join_view::end): Initialize _Sentinel from 'this' instead of
   2178  1.1.1.21  mrg 	'*this'.
   2179  1.1.1.21  mrg 	(split_view::_OuterIter): Take a _Parent& instead of a _Parent*.
   2180  1.1.1.21  mrg 	(split_view::begin): Initialize _OuterIter from 'this' instead
   2181  1.1.1.21  mrg 	of '*this'.
   2182  1.1.1.21  mrg 	(split_view::end): Likewise.
   2183  1.1.1.21  mrg 	* testsuite/std/ranges/97600.cc: New test.
   2184  1.1.1.21  mrg 
   2185  1.1.1.21  mrg 2021-04-19  Franois Dumont  <fdumont (a] gcc.gnu.org>
   2186  1.1.1.21  mrg 
   2187  1.1.1.21  mrg 	PR libstdc++/99402
   2188  1.1.1.21  mrg 	* include/debug/helper_functions.h (__can_advance(_InputIterator,
   2189  1.1.1.21  mrg 	const std::pair<_Diff, _Distance_precision>&, int)): New.
   2190  1.1.1.21  mrg 	(__can_advance(const _Safe_iterator<>&,
   2191  1.1.1.21  mrg 	const std::pair<_Diff, _Distance_precision>&, int)): New.
   2192  1.1.1.21  mrg 	* include/debug/macros.h (__glibcxx_check_can_increment_dist): New,
   2193  1.1.1.21  mrg 	use latter.
   2194  1.1.1.21  mrg 	(__glibcxx_check_can_increment_range): Adapt to use latter.
   2195  1.1.1.21  mrg 	(__glibcxx_check_can_decrement_range): Likewise.
   2196  1.1.1.21  mrg 	* include/debug/safe_iterator.h
   2197  1.1.1.21  mrg 	(_Safe_iterator<>::_M_can_advance(const std::pair<_Diff, _Distance_precision>&,
   2198  1.1.1.21  mrg 	int)): New.
   2199  1.1.1.21  mrg 	(__can_advance(const _Safe_iterator<>&,
   2200  1.1.1.21  mrg 	const std::pair<_Diff, _Distance_precision>&, int)): New.
   2201  1.1.1.21  mrg 	* include/debug/safe_iterator.tcc
   2202  1.1.1.21  mrg 	(_Safe_iterator<>::_M_can_advance(const std::pair<_Diff, _Distance_precision>&,
   2203  1.1.1.21  mrg 	int)): New.
   2204  1.1.1.21  mrg 	(_Safe_iterator<>::_M_valid_range(const _Safe_iterator<>&,
   2205  1.1.1.21  mrg 	std::pair<difference_type, _Distance_precision>&, bool)): Adapt for
   2206  1.1.1.21  mrg 	__dp_sign_max_size.
   2207  1.1.1.21  mrg 	(__copy_move_a): Adapt to use __glibcxx_check_can_increment_dist.
   2208  1.1.1.21  mrg 	(__copy_move_backward_a): Likewise.
   2209  1.1.1.21  mrg 	(__equal_aux): Likewise.
   2210  1.1.1.21  mrg 	* include/debug/stl_iterator.h (__can_advance(const std::reverse_iterator<>&,
   2211  1.1.1.21  mrg 	const std::pair<_Diff, _Distance_precision>&, int)): New.
   2212  1.1.1.21  mrg 	(__can_advance(const std::move_iterator<>&,
   2213  1.1.1.21  mrg 	const std::pair<_Diff, _Distance_precision>&, int)): New.
   2214  1.1.1.21  mrg 	* testsuite/25_algorithms/copy/debug/99402.cc: New test.
   2215  1.1.1.21  mrg 
   2216  1.1.1.21  mrg 2021-04-19  Jonathan Wakely  <jwakely (a] redhat.com>
   2217  1.1.1.21  mrg 
   2218  1.1.1.21  mrg 	Backported from master:
   2219  1.1.1.21  mrg 	2020-10-26  Jonathan Wakely  <jwakely (a] redhat.com>
   2220  1.1.1.21  mrg 
   2221  1.1.1.21  mrg 	PR libstdc++/97570
   2222  1.1.1.21  mrg 	* libsupc++/new_opa.cc: Declare size_t in global namespace.
   2223  1.1.1.21  mrg 	Remove unused header.
   2224  1.1.1.21  mrg 
   2225  1.1.1.21  mrg 2021-04-13  Jonathan Wakely  <jwakely (a] redhat.com>
   2226  1.1.1.21  mrg 
   2227  1.1.1.21  mrg 	Backported from master:
   2228  1.1.1.21  mrg 	2021-04-13  Jonathan Wakely  <jwakely (a] redhat.com>
   2229  1.1.1.21  mrg 
   2230  1.1.1.21  mrg 	PR libstdc++/100060
   2231  1.1.1.21  mrg 	* include/std/bit: Only include <ext/numeric_traits.h> for
   2232  1.1.1.21  mrg 	hosted build, use <limits> otherwise.
   2233  1.1.1.21  mrg 
   2234  1.1.1.21  mrg 2021-04-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2235  1.1.1.21  mrg 
   2236  1.1.1.21  mrg 	Backported from master:
   2237  1.1.1.21  mrg 	2021-04-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2238  1.1.1.21  mrg 
   2239  1.1.1.21  mrg 	PR libstdc++/100044
   2240  1.1.1.21  mrg 	* include/std/ranges (__detail::__iterator_sentinel_pair):
   2241  1.1.1.21  mrg 	Remove helper concept.
   2242  1.1.1.21  mrg 	(subrange(_Pr), subrange(Pr, __make_unsigned_like<...>)): Remove
   2243  1.1.1.21  mrg 	deduction guides, as per LWG 3404.
   2244  1.1.1.21  mrg 	* testsuite/std/ranges/subrange/lwg3282_neg.cc: Check that class
   2245  1.1.1.21  mrg 	template argument deduction fails.
   2246  1.1.1.21  mrg 
   2247  1.1.1.21  mrg 2021-04-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2248  1.1.1.21  mrg 
   2249  1.1.1.21  mrg 	Backported from master:
   2250  1.1.1.21  mrg 	2020-08-24  Jonathan Wakely  <jwakely (a] redhat.com>
   2251  1.1.1.21  mrg 
   2252  1.1.1.21  mrg 	* include/bits/iterator_concepts.h (indirectly_readable): Add
   2253  1.1.1.21  mrg 	partial specializations to resolve ambiguities (LWG 3446).
   2254  1.1.1.21  mrg 	* testsuite/24_iterators/associated_types/readable.traits.cc:
   2255  1.1.1.21  mrg 	Check types with both value_type and element_type.
   2256  1.1.1.21  mrg 
   2257  1.1.1.21  mrg 2021-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2258  1.1.1.21  mrg 
   2259  1.1.1.21  mrg 	PR bootstrap/99983
   2260  1.1.1.21  mrg 	* include/bits/hashtable.h (_Hashtable): Fix noexcept-speciofier
   2261  1.1.1.21  mrg 	on definition to match the one on the declaration.
   2262  1.1.1.21  mrg 
   2263  1.1.1.21  mrg 2021-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2264  1.1.1.21  mrg 
   2265  1.1.1.21  mrg 	Backported from master:
   2266  1.1.1.21  mrg 	2021-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2267  1.1.1.21  mrg 
   2268  1.1.1.21  mrg 	PR libstdc++/99985
   2269  1.1.1.21  mrg 	* include/bits/hashtable.h (_Hashtable::_S_nothrow_move()): Fix
   2270  1.1.1.21  mrg 	to be a valid constexpr function in C++11.
   2271  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/cons/99985.cc: New test.
   2272  1.1.1.21  mrg 
   2273  1.1.1.21  mrg 2021-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2274  1.1.1.21  mrg 
   2275  1.1.1.21  mrg 	Backported from master:
   2276  1.1.1.21  mrg 	2021-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2277  1.1.1.21  mrg 
   2278  1.1.1.21  mrg 	* include/bits/fs_fwd.h: Fix doxygen group command.
   2279  1.1.1.21  mrg 	* include/bits/streambuf_iterator.h: Likewise.
   2280  1.1.1.21  mrg 	* include/std/chrono: Likewise.
   2281  1.1.1.21  mrg 	* include/std/memory: Likewise.
   2282  1.1.1.21  mrg 	* include/std/thread: Likewise.
   2283  1.1.1.21  mrg 	* include/tr1/complex: Likewise.
   2284  1.1.1.21  mrg 
   2285  1.1.1.21  mrg 2021-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2286  1.1.1.21  mrg 
   2287  1.1.1.21  mrg 	Backported from master:
   2288  1.1.1.21  mrg 	2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2289  1.1.1.21  mrg 
   2290  1.1.1.21  mrg 	* include/bits/basic_string.h: Tweak doxygen comment.
   2291  1.1.1.21  mrg 
   2292  1.1.1.21  mrg 2021-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2293  1.1.1.21  mrg 
   2294  1.1.1.21  mrg 	Backported from master:
   2295  1.1.1.21  mrg 	2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2296  1.1.1.21  mrg 
   2297  1.1.1.21  mrg 	* include/bits/random.h: Fix doxygen group commands.
   2298  1.1.1.21  mrg 	* include/bits/regex_constants.h: Likewise.
   2299  1.1.1.21  mrg 	* include/tr1/random.h: Likewise.
   2300  1.1.1.21  mrg 
   2301  1.1.1.21  mrg 2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2302  1.1.1.21  mrg 
   2303  1.1.1.21  mrg 	Backported from master:
   2304  1.1.1.21  mrg 	2020-07-30  Jonathan Wakely  <jwakely (a] redhat.com>
   2305  1.1.1.21  mrg 
   2306  1.1.1.21  mrg 	* testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
   2307  1.1.1.21  mrg 	Use allocator with the correct value type.
   2308  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
   2309  1.1.1.21  mrg 	Likewise.
   2310  1.1.1.21  mrg 
   2311  1.1.1.21  mrg 2021-04-08  Franois Dumont  <fdumont (a] gcc.gnu.org>
   2312  1.1.1.21  mrg 
   2313  1.1.1.21  mrg 	Backported from master:
   2314  1.1.1.21  mrg 	2020-07-29  Franois Dumont  <fdumont (a] gcc.gnu.org>
   2315  1.1.1.21  mrg 
   2316  1.1.1.21  mrg 	PR libstdc++/96029
   2317  1.1.1.21  mrg 	* include/bits/hashtable.h
   2318  1.1.1.21  mrg 	(_Hashtable(_Hashtable&& __ht, __node_alloc_type&& __a, true_type)):
   2319  1.1.1.21  mrg 	Add noexcept qualification.
   2320  1.1.1.21  mrg 	(_Hashtable(_Hashtable&&)): Fix noexcept qualification.
   2321  1.1.1.21  mrg 	(_Hashtable(_Hashtable&&, const allocator_type&)): Add noexcept
   2322  1.1.1.21  mrg 	qualification.
   2323  1.1.1.21  mrg 	* include/bits/unordered_map.h
   2324  1.1.1.21  mrg 	(unordered_map(unordered_map&&, const allocator_type&)): Add noexcept
   2325  1.1.1.21  mrg 	qualification.
   2326  1.1.1.21  mrg 	(unordered_multimap(unordered_multimap&&, const allocator_type&)):
   2327  1.1.1.21  mrg 	Likewise.
   2328  1.1.1.21  mrg 	* include/bits/unordered_set.h
   2329  1.1.1.21  mrg 	(unordered_set(unordered_set&&, const allocator_type&)): Likewise.
   2330  1.1.1.21  mrg 	(unordered_multiset(unordered_multiset&&, const allocator_type&)):
   2331  1.1.1.21  mrg 	Likewise.
   2332  1.1.1.21  mrg 	* include/debug/unordered_map
   2333  1.1.1.21  mrg 	(unordered_map(unordered_map&&, const allocator_type&)): Likewise.
   2334  1.1.1.21  mrg 	(unordered_multimap(unordered_multimap&&, const allocator_type&)):
   2335  1.1.1.21  mrg 	Likewise.
   2336  1.1.1.21  mrg 	* include/debug/unordered_set
   2337  1.1.1.21  mrg 	(unordered_set(unordered_set&&, const allocator_type&)): Likewise.
   2338  1.1.1.21  mrg 	(unordered_multiset(unordered_multiset&&, const allocator_type&)):
   2339  1.1.1.21  mrg 	Likewise.
   2340  1.1.1.21  mrg 	* testsuite/23_containers/unordered_map/allocator/default_init.cc:
   2341  1.1.1.21  mrg 	New test.
   2342  1.1.1.21  mrg 	* testsuite/23_containers/unordered_map/cons/noexcept_default_construct.cc:
   2343  1.1.1.21  mrg 	New test.
   2344  1.1.1.21  mrg 	* testsuite/23_containers/unordered_map/cons/noexcept_move_construct.cc:
   2345  1.1.1.21  mrg 	New test.
   2346  1.1.1.21  mrg 	* testsuite/23_containers/unordered_map/modifiers/move_assign.cc:
   2347  1.1.1.21  mrg 	New test.
   2348  1.1.1.21  mrg 	* testsuite/23_containers/unordered_multimap/cons/noexcept_default_construct.cc:
   2349  1.1.1.21  mrg 	New test.
   2350  1.1.1.21  mrg 	* testsuite/23_containers/unordered_multimap/cons/noexcept_move_construct.cc:
   2351  1.1.1.21  mrg 	New test.
   2352  1.1.1.21  mrg 	* testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
   2353  1.1.1.21  mrg 	New test.
   2354  1.1.1.21  mrg 	* testsuite/23_containers/unordered_multiset/cons/noexcept_move_construct.cc:
   2355  1.1.1.21  mrg 	New test.
   2356  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/allocator/default_init.cc:
   2357  1.1.1.21  mrg 	New test.
   2358  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
   2359  1.1.1.21  mrg 	New test.
   2360  1.1.1.21  mrg 	* testsuite/23_containers/unordered_set/cons/noexcept_move_construct.cc:
   2361  1.1.1.21  mrg 	New test.
   2362  1.1.1.21  mrg 
   2363  1.1.1.21  mrg 2021-04-08  Franois Dumont  <fdumont (a] gcc.gnu.org>
   2364  1.1.1.21  mrg 
   2365  1.1.1.21  mrg 	Backported from master:
   2366  1.1.1.21  mrg 	2020-07-08  Franois Dumont  <fdumont (a] gcc.gnu.org>
   2367  1.1.1.21  mrg 
   2368  1.1.1.21  mrg 	PR libstdc++/96029
   2369  1.1.1.21  mrg 	* include/bits/stl_tree.h (_Rb_tree_impl(_Rb_tree_impl&&)): Add noexcept
   2370  1.1.1.21  mrg 	qualification based only on _Compare one.
   2371  1.1.1.21  mrg 	* testsuite/23_containers/map/cons/noexcept_move_construct.cc: Add
   2372  1.1.1.21  mrg 	static asserts.
   2373  1.1.1.21  mrg 	* testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
   2374  1.1.1.21  mrg 	Likewise.
   2375  1.1.1.21  mrg 	* testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
   2376  1.1.1.21  mrg 	Likewise.
   2377  1.1.1.21  mrg 	* testsuite/23_containers/set/cons/noexcept_move_construct.cc: Likewise.
   2378  1.1.1.21  mrg 
   2379  1.1.1.21  mrg 2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2380  1.1.1.21  mrg 
   2381  1.1.1.21  mrg 	Backported from master:
   2382  1.1.1.21  mrg 	2021-04-07  Jonathan Wakely  <jwakely (a] redhat.com>
   2383  1.1.1.21  mrg 
   2384  1.1.1.21  mrg 	PR libstdc++/99805
   2385  1.1.1.21  mrg 	* src/c++17/fs_path.cc (path::_M_split_cmpts): Do not call
   2386  1.1.1.21  mrg 	non-const member on _M_pathname, to avoid copy-on-write.
   2387  1.1.1.21  mrg 	* testsuite/27_io/filesystem/path/decompose/parent_path.cc:
   2388  1.1.1.21  mrg 	Check construction from strings that might be shared.
   2389  1.1.1.21  mrg 
   2390  1.1.1.21  mrg 2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2391  1.1.1.21  mrg 
   2392  1.1.1.21  mrg 	* doc/xml/manual/status_cxx2017.xml: Replace Intel parallelstl
   2393  1.1.1.21  mrg 	link with LLVM repo for PSTL.
   2394  1.1.1.21  mrg 	* doc/html/manual/status.html: Regenerate.
   2395  1.1.1.21  mrg 
   2396  1.1.1.21  mrg 2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2397  1.1.1.21  mrg 
   2398  1.1.1.21  mrg 	Backported from master:
   2399  1.1.1.21  mrg 	2021-04-06  Jonathan Wakely  <jwakely (a] redhat.com>
   2400  1.1.1.21  mrg 
   2401  1.1.1.21  mrg 	* include/bits/alloc_traits.h: Use markdown for code font.
   2402  1.1.1.21  mrg 	* include/bits/basic_string.h: Fix @param names.
   2403  1.1.1.21  mrg 	* include/bits/regex.h: Fix duplicate @retval names, and rename.
   2404  1.1.1.21  mrg 	* include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp: Add
   2405  1.1.1.21  mrg 	group open to match existing group close.
   2406  1.1.1.21  mrg 	* include/ext/pb_ds/priority_queue.hpp: Add blank line before group
   2407  1.1.1.21  mrg 	open.
   2408  1.1.1.21  mrg 
   2409  1.1.1.21  mrg 2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2410  1.1.1.21  mrg 
   2411  1.1.1.21  mrg 	Backported from master:
   2412  1.1.1.21  mrg 	2021-04-06  Jonathan Wakely  <jwakely (a] redhat.com>
   2413  1.1.1.21  mrg 
   2414  1.1.1.21  mrg 	* include/bits/atomic_base.h: Fix doxygen group close.
   2415  1.1.1.21  mrg 	* include/bits/basic_ios.h: Likewise.
   2416  1.1.1.21  mrg 	* include/bits/forward_list.h: Likewise.
   2417  1.1.1.21  mrg 	* include/bits/fs_dir.h: Likewise.
   2418  1.1.1.21  mrg 	* include/bits/fs_ops.h: Likewise.
   2419  1.1.1.21  mrg 	* include/bits/fs_path.h: Likewise.
   2420  1.1.1.21  mrg 	* include/bits/functional_hash.h: Likewise.
   2421  1.1.1.21  mrg 	* include/bits/gslice.h: Likewise.
   2422  1.1.1.21  mrg 	* include/bits/gslice_array.h: Likewise.
   2423  1.1.1.21  mrg 	* include/bits/hashtable_policy.h: Likewise.
   2424  1.1.1.21  mrg 	* include/bits/indirect_array.h: Likewise.
   2425  1.1.1.21  mrg 	* include/bits/locale_classes.h: Likewise.
   2426  1.1.1.21  mrg 	* include/bits/locale_facets.h: Likewise.
   2427  1.1.1.21  mrg 	* include/bits/locale_facets_nonio.h: Likewise.
   2428  1.1.1.21  mrg 	* include/bits/mask_array.h: Likewise.
   2429  1.1.1.21  mrg 	* include/bits/refwrap.h: Likewise.
   2430  1.1.1.21  mrg 	* include/bits/regex.h: Likewise.
   2431  1.1.1.21  mrg 	* include/bits/regex_automaton.h: Likewise.
   2432  1.1.1.21  mrg 	* include/bits/regex_compiler.h: Likewise.
   2433  1.1.1.21  mrg 	* include/bits/regex_constants.h: Likewise.
   2434  1.1.1.21  mrg 	* include/bits/regex_error.h: Likewise.
   2435  1.1.1.21  mrg 	* include/bits/regex_executor.h: Likewise.
   2436  1.1.1.21  mrg 	* include/bits/regex_scanner.h: Likewise.
   2437  1.1.1.21  mrg 	* include/bits/shared_ptr.h: Likewise.
   2438  1.1.1.21  mrg 	* include/bits/shared_ptr_atomic.h: Likewise.
   2439  1.1.1.21  mrg 	* include/bits/shared_ptr_base.h: Likewise.
   2440  1.1.1.21  mrg 	* include/bits/slice_array.h: Likewise.
   2441  1.1.1.21  mrg 	* include/bits/specfun.h: Likewise.
   2442  1.1.1.21  mrg 	* include/bits/std_function.h: Likewise.
   2443  1.1.1.21  mrg 	* include/bits/std_mutex.h: Likewise.
   2444  1.1.1.21  mrg 	* include/bits/stl_deque.h: Likewise.
   2445  1.1.1.21  mrg 	* include/bits/stl_iterator.h: Likewise.
   2446  1.1.1.21  mrg 	* include/bits/stl_iterator_base_types.h: Likewise.
   2447  1.1.1.21  mrg 	* include/bits/stl_map.h: Likewise.
   2448  1.1.1.21  mrg 	* include/bits/stl_multimap.h: Likewise.
   2449  1.1.1.21  mrg 	* include/bits/stl_multiset.h: Likewise.
   2450  1.1.1.21  mrg 	* include/bits/stl_numeric.h: Likewise.
   2451  1.1.1.21  mrg 	* include/bits/stl_pair.h: Likewise.
   2452  1.1.1.21  mrg 	* include/bits/stl_set.h: Likewise.
   2453  1.1.1.21  mrg 	* include/bits/stl_uninitialized.h: Likewise.
   2454  1.1.1.21  mrg 	* include/bits/stream_iterator.h: Likewise.
   2455  1.1.1.21  mrg 	* include/bits/streambuf_iterator.h: Likewise.
   2456  1.1.1.21  mrg 	* include/bits/unique_ptr.h: Likewise.
   2457  1.1.1.21  mrg 	* include/bits/unordered_map.h: Likewise.
   2458  1.1.1.21  mrg 	* include/bits/unordered_set.h: Likewise.
   2459  1.1.1.21  mrg 	* include/decimal/decimal: Likewise.
   2460  1.1.1.21  mrg 	* include/experimental/any: Likewise.
   2461  1.1.1.21  mrg 	* include/experimental/array: Likewise.
   2462  1.1.1.21  mrg 	* include/experimental/bits/fs_dir.h: Likewise.
   2463  1.1.1.21  mrg 	* include/experimental/bits/fs_fwd.h: Likewise.
   2464  1.1.1.21  mrg 	* include/experimental/bits/fs_ops.h: Likewise.
   2465  1.1.1.21  mrg 	* include/experimental/bits/fs_path.h: Likewise.
   2466  1.1.1.21  mrg 	* include/experimental/buffer: Likewise.
   2467  1.1.1.21  mrg 	* include/experimental/internet: Likewise.
   2468  1.1.1.21  mrg 	* include/experimental/optional: Likewise.
   2469  1.1.1.21  mrg 	* include/experimental/propagate_const: Likewise.
   2470  1.1.1.21  mrg 	* include/experimental/socket: Likewise.
   2471  1.1.1.21  mrg 	* include/ext/pb_ds/assoc_container.hpp: Likewise.
   2472  1.1.1.21  mrg 	* include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp:
   2473  1.1.1.21  mrg 	Likewise.
   2474  1.1.1.21  mrg 	* include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp: Likewise.
   2475  1.1.1.21  mrg 	* include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp: Likewise.
   2476  1.1.1.21  mrg 	* include/ext/pb_ds/detail/types_traits.hpp: Likewise.
   2477  1.1.1.21  mrg 	* include/ext/pb_ds/exception.hpp: Likewise.
   2478  1.1.1.21  mrg 	* include/ext/pb_ds/priority_queue.hpp: Likewise.
   2479  1.1.1.21  mrg 	* include/ext/pb_ds/tag_and_trait.hpp: Likewise.
   2480  1.1.1.21  mrg 	* include/ext/random: Likewise.
   2481  1.1.1.21  mrg 	* include/std/any: Likewise.
   2482  1.1.1.21  mrg 	* include/std/atomic: Likewise.
   2483  1.1.1.21  mrg 	* include/std/bitset: Likewise.
   2484  1.1.1.21  mrg 	* include/std/chrono: Likewise.
   2485  1.1.1.21  mrg 	* include/std/complex: Likewise.
   2486  1.1.1.21  mrg 	* include/std/condition_variable: Likewise.
   2487  1.1.1.21  mrg 	* include/std/fstream: Likewise.
   2488  1.1.1.21  mrg 	* include/std/future: Likewise.
   2489  1.1.1.21  mrg 	* include/std/istream: Likewise.
   2490  1.1.1.21  mrg 	* include/std/iostream: Likewise.
   2491  1.1.1.21  mrg 	* include/std/mutex: Likewise.
   2492  1.1.1.21  mrg 	* include/std/numeric: Likewise.
   2493  1.1.1.21  mrg 	* include/std/ostream: Likewise.
   2494  1.1.1.21  mrg 	* include/std/ratio: Likewise.
   2495  1.1.1.21  mrg 	* include/std/shared_mutex: Likewise.
   2496  1.1.1.21  mrg 	* include/std/stdexcept: Likewise.
   2497  1.1.1.21  mrg 	* include/std/streambuf: Likewise.
   2498  1.1.1.21  mrg 	* include/std/system_error: Likewise.
   2499  1.1.1.21  mrg 	* include/std/valarray: Likewise.
   2500  1.1.1.21  mrg 	* include/std/variant: Likewise.
   2501  1.1.1.21  mrg 	* include/tr1/cmath: Likewise.
   2502  1.1.1.21  mrg 	* include/tr1/regex: Likewise.
   2503  1.1.1.21  mrg 	* include/tr2/dynamic_bitset: Likewise.
   2504  1.1.1.21  mrg 	* libsupc++/atomic_lockfree_defines.h: Likewise.
   2505  1.1.1.21  mrg 	* libsupc++/exception: Likewise.
   2506  1.1.1.21  mrg 	* libsupc++/exception.h: Likewise.
   2507  1.1.1.21  mrg 	* libsupc++/exception_ptr.h: Likewise.
   2508  1.1.1.21  mrg 	* libsupc++/nested_exception.h: Likewise.
   2509  1.1.1.21  mrg 
   2510  1.1.1.21  mrg 2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2511  1.1.1.21  mrg 
   2512  1.1.1.21  mrg 	Backported from master:
   2513  1.1.1.21  mrg 	2021-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   2514  1.1.1.21  mrg 
   2515  1.1.1.21  mrg 	* include/std/string_view: Adjust Doxygen @file comment.
   2516  1.1.1.21  mrg 
   2517  1.1.1.20  mrg 2021-04-08  Release Manager
   2518  1.1.1.16  mrg 
   2519  1.1.1.20  mrg 	* GCC 10.3.0 released.
   2520  1.1.1.19  mrg 
   2521  1.1.1.20  mrg 2021-04-01  Jonathan Wakely  <jwakely (a] redhat.com>
   2522  1.1.1.19  mrg 
   2523  1.1.1.20  mrg 	Backported from master:
   2524  1.1.1.20  mrg 	2021-02-14  Jonathan Wakely  <jwakely (a] redhat.com>
   2525  1.1.1.19  mrg 
   2526  1.1.1.20  mrg 	PR libstdc++/99096
   2527  1.1.1.20  mrg 	* testsuite/util/testsuite_fs.h: Always include <unistd.h>.
   2528  1.1.1.19  mrg 
   2529  1.1.1.20  mrg 2021-04-01  Jonathan Wakely  <jwakely (a] redhat.com>
   2530  1.1.1.19  mrg 
   2531  1.1.1.20  mrg 	Backported from master:
   2532  1.1.1.20  mrg 	2020-12-17  Jonathan Wakely  <jwakely (a] redhat.com>
   2533  1.1.1.19  mrg 
   2534  1.1.1.20  mrg 	* config.h.in: Regenerate.
   2535  1.1.1.20  mrg 	* config/os/djgpp/error_constants.h: Test POSIX errno macros
   2536  1.1.1.20  mrg 	directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros.
   2537  1.1.1.20  mrg 	* config/os/mingw32-w64/error_constants.h: Likewise.
   2538  1.1.1.20  mrg 	* config/os/mingw32/error_constants.h: Likewise.
   2539  1.1.1.20  mrg 	* configure: Regenerate.
   2540  1.1.1.19  mrg 
   2541  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2542  1.1.1.19  mrg 
   2543  1.1.1.20  mrg 	Backported from master:
   2544  1.1.1.20  mrg 	2020-11-30  Jonathan Wakely  <jwakely (a] redhat.com>
   2545  1.1.1.19  mrg 
   2546  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/pstl/*: Add
   2547  1.1.1.20  mrg 	dg-timeout-factor.
   2548  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/*: Likewise.
   2549  1.1.1.20  mrg 	* testsuite/26_numerics/pstl/*: Likewise.
   2550  1.1.1.20  mrg 	* testsuite/28_regex/*: Likewise.
   2551  1.1.1.19  mrg 
   2552  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2553  1.1.1.19  mrg 
   2554  1.1.1.20  mrg 	Backported from master:
   2555  1.1.1.20  mrg 	2020-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   2556  1.1.1.19  mrg 
   2557  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/basic/string_range_01_03.cc:
   2558  1.1.1.20  mrg 	Add dg-timeout-factor directive.
   2559  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc:
   2560  1.1.1.20  mrg 	Likewise.
   2561  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/ecma/char/backref.cc:
   2562  1.1.1.20  mrg 	Likewise.
   2563  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/63199.cc:
   2564  1.1.1.20  mrg 	Likewise.
   2565  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/anymatcher.cc:
   2566  1.1.1.20  mrg 	Likewise.
   2567  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/cjk_match.cc:
   2568  1.1.1.20  mrg 	Likewise.
   2569  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/hex.cc:
   2570  1.1.1.20  mrg 	Likewise.
   2571  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_match/extended/wstring_locale.cc:
   2572  1.1.1.20  mrg 	Likewise.
   2573  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_search/61720.cc: Likewise.
   2574  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_search/ecma/assertion.cc:
   2575  1.1.1.20  mrg 	Likewise.
   2576  1.1.1.20  mrg 	* testsuite/28_regex/algorithms/regex_search/ecma/string_01.cc:
   2577  1.1.1.20  mrg 	Likewise.
   2578  1.1.1.20  mrg 	* testsuite/28_regex/basic_regex/ctors/deduction.cc: Likewise.
   2579  1.1.1.19  mrg 
   2580  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2581  1.1.1.19  mrg 
   2582  1.1.1.20  mrg 	Backported from master:
   2583  1.1.1.20  mrg 	2020-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   2584  1.1.1.19  mrg 
   2585  1.1.1.20  mrg 	* include/std/stop_token: Check _GLIBCXX_HAS_GTHREADS using
   2586  1.1.1.20  mrg 	#ifdef instead of #if.
   2587  1.1.1.20  mrg 	(stop_token::_S_yield()): Check _GLIBCXX_HAS_GTHREADS before
   2588  1.1.1.20  mrg 	using __gthread_yield.
   2589  1.1.1.19  mrg 
   2590  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2591  1.1.1.19  mrg 
   2592  1.1.1.20  mrg 	Backported from master:
   2593  1.1.1.20  mrg 	2020-06-19  Jonathan Wakely  <jwakely (a] redhat.com>
   2594  1.1.1.19  mrg 
   2595  1.1.1.20  mrg 	PR libstdc++/95765
   2596  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__size_to_integer(float))
   2597  1.1.1.20  mrg 	(__size_to_integer(double), __size_to_integer(long double))
   2598  1.1.1.20  mrg 	(__size_to_integer(__float128)): Cast return type explicitly.
   2599  1.1.1.19  mrg 
   2600  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2601  1.1.1.18  mrg 
   2602  1.1.1.20  mrg 	Backported from master:
   2603  1.1.1.20  mrg 	2020-11-25  Jonathan Wakely  <jwakely (a] redhat.com>
   2604  1.1.1.18  mrg 
   2605  1.1.1.20  mrg 	* testsuite/17_intro/names.cc: Do not test 'v' on AIX.
   2606  1.1.1.18  mrg 
   2607  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2608  1.1.1.18  mrg 
   2609  1.1.1.20  mrg 	Backported from master:
   2610  1.1.1.20  mrg 	2020-07-30  Jonathan Wakely  <jwakely (a] redhat.com>
   2611  1.1.1.18  mrg 
   2612  1.1.1.20  mrg 	* include/bits/basic_string.h (size_type, difference_type):
   2613  1.1.1.20  mrg 	Use allocator_traits to obtain the allocator's size_type and
   2614  1.1.1.20  mrg 	difference_type.
   2615  1.1.1.18  mrg 
   2616  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2617  1.1.1.18  mrg 
   2618  1.1.1.20  mrg 	Backported from master:
   2619  1.1.1.20  mrg 	2020-09-01  Jonathan Wakely  <jwakely (a] redhat.com>
   2620  1.1.1.18  mrg 
   2621  1.1.1.20  mrg 	* include/std/chrono (duration::_S_gcd(intmax_t, intmax_t)):
   2622  1.1.1.20  mrg 	New helper function for finding GCD of two positive intmax_t
   2623  1.1.1.20  mrg 	values.
   2624  1.1.1.20  mrg 	(duration::__divide): New helper alias for dividing one period
   2625  1.1.1.20  mrg 	by another.
   2626  1.1.1.20  mrg 	(duration::__is_harmonic): Use __divide not ratio_divide.
   2627  1.1.1.20  mrg 	(duration(const duration<R2, P2>&)): Require the duration rep
   2628  1.1.1.20  mrg 	types to be convertible.
   2629  1.1.1.20  mrg 	* testsuite/20_util/duration/cons/dr2094.cc: New test.
   2630  1.1.1.20  mrg 	* testsuite/20_util/duration/requirements/reduced_period.cc:
   2631  1.1.1.20  mrg 	Fix definition of unused member functions in test type.
   2632  1.1.1.20  mrg 	* testsuite/20_util/duration/requirements/typedefs_neg2.cc:
   2633  1.1.1.20  mrg 	Adjust expected errors.
   2634  1.1.1.18  mrg 
   2635  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2636  1.1.1.18  mrg 
   2637  1.1.1.20  mrg 	Backported from master:
   2638  1.1.1.20  mrg 	2020-08-27  Jonathan Wakely  <jwakely (a] redhat.com>
   2639  1.1.1.18  mrg 
   2640  1.1.1.20  mrg 	* include/std/chrono (__duration_common_type): Ensure the
   2641  1.1.1.20  mrg 	reduced ratio is used. Remove unused partial specialization
   2642  1.1.1.20  mrg 	using __failure_type.
   2643  1.1.1.20  mrg 	(common_type): Pass reduced ratios to __duration_common_type.
   2644  1.1.1.20  mrg 	Add partial specializations for simple cases involving a single
   2645  1.1.1.20  mrg 	duration or time_point type.
   2646  1.1.1.20  mrg 	(duration::period): Use reduced ratio.
   2647  1.1.1.20  mrg 	(duration::operator+(), duration::operator-()): Return duration
   2648  1.1.1.20  mrg 	type using the reduced ratio.
   2649  1.1.1.20  mrg 	* testsuite/20_util/duration/requirements/typedefs_neg2.cc:
   2650  1.1.1.20  mrg 	Adjust expected errors.
   2651  1.1.1.20  mrg 	* testsuite/20_util/duration/requirements/reduced_period.cc: New test.
   2652  1.1.1.18  mrg 
   2653  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2654  1.1.1.18  mrg 
   2655  1.1.1.20  mrg 	Backported from master:
   2656  1.1.1.20  mrg 	2020-09-03  Jonathan Wakely  <jwakely (a] redhat.com>
   2657  1.1.1.18  mrg 
   2658  1.1.1.20  mrg 	PR libstdc++/96592
   2659  1.1.1.20  mrg 	* include/std/tuple (_TupleConstraints<true, T...>): Use
   2660  1.1.1.20  mrg 	alternative is_constructible instead of std::is_constructible.
   2661  1.1.1.20  mrg 	* testsuite/20_util/tuple/cons/96592.cc: New test.
   2662  1.1.1.19  mrg 
   2663  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2664  1.1.1.18  mrg 
   2665  1.1.1.20  mrg 	Backported from master:
   2666  1.1.1.20  mrg 	2020-07-31  Jonathan Wakely  <jwakely (a] redhat.com>
   2667  1.1.1.18  mrg 
   2668  1.1.1.20  mrg 	* testsuite/20_util/is_aggregate/value.cc: Adjust for changes to
   2669  1.1.1.20  mrg 	definition of aggregates in C++20.
   2670  1.1.1.20  mrg 	* testsuite/20_util/optional/requirements.cc: Adjust for
   2671  1.1.1.20  mrg 	defaulted comparisons in C++20.
   2672  1.1.1.18  mrg 
   2673  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2674  1.1.1.18  mrg 
   2675  1.1.1.20  mrg 	Backported from master:
   2676  1.1.1.20  mrg 	2020-07-31  Jonathan Wakely  <jwakely (a] redhat.com>
   2677  1.1.1.18  mrg 
   2678  1.1.1.20  mrg 	* testsuite/20_util/tuple/78939.cc: Suppress warnings about
   2679  1.1.1.20  mrg 	deprecation of volatile-qualified structured bindings in C++20.
   2680  1.1.1.20  mrg 	* testsuite/20_util/variable_templates_for_traits.cc: Likewise
   2681  1.1.1.20  mrg 	for deprecation of is_pod in C++20
   2682  1.1.1.18  mrg 
   2683  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2684  1.1.1.18  mrg 
   2685  1.1.1.20  mrg 	Backported from master:
   2686  1.1.1.20  mrg 	2020-06-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2687  1.1.1.18  mrg 
   2688  1.1.1.20  mrg 	* include/std/optional (bad_optional_access): Define default
   2689  1.1.1.20  mrg 	constructor and destructor as defaulted.
   2690  1.1.1.20  mrg 	* testsuite/20_util/optional/bad_access.cc: New test.
   2691  1.1.1.19  mrg 
   2692  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2693  1.1.1.19  mrg 
   2694  1.1.1.20  mrg 	Backported from master:
   2695  1.1.1.20  mrg 	2020-06-04  Jonathan Wakely  <jwakely (a] redhat.com>
   2696  1.1.1.18  mrg 
   2697  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__copy_n_fn): Only call
   2698  1.1.1.20  mrg 	ranges::copy for positive values.
   2699  1.1.1.20  mrg 	* include/bits/stl_algo.h (copy_n): Convert Size argument to an
   2700  1.1.1.20  mrg 	integral type and only call __copy_n for positive values.
   2701  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h
   2702  1.1.1.20  mrg 	(random_access_iterator_wrapper::operator+=): Fix range check for
   2703  1.1.1.20  mrg 	negative values.
   2704  1.1.1.20  mrg 	(output_container, input_container, forward_container)
   2705  1.1.1.20  mrg 	(bidirectional_container, random_access_container): New alias
   2706  1.1.1.20  mrg 	templates.
   2707  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_n/5.cc: New test.
   2708  1.1.1.19  mrg 
   2709  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2710  1.1.1.19  mrg 
   2711  1.1.1.20  mrg 	Backported from master:
   2712  1.1.1.20  mrg 	2020-06-16  Jonathan Wakely  <jwakely (a] redhat.com>
   2713  1.1.1.18  mrg 
   2714  1.1.1.20  mrg 	* include/std/atomic (atomic): Add static assertions.
   2715  1.1.1.20  mrg 	* testsuite/29_atomics/atomic/requirements/types_neg.cc: New test.
   2716  1.1.1.16  mrg 
   2717  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2718  1.1.1.19  mrg 
   2719  1.1.1.20  mrg 	Backported from master:
   2720  1.1.1.20  mrg 	2020-06-09  Jonathan Wakely  <jwakely (a] redhat.com>
   2721  1.1.1.19  mrg 
   2722  1.1.1.20  mrg 	* include/bits/stl_iterator.h (move_iterator::operator=): Define.
   2723  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/dr3265.cc: New test.
   2724  1.1.1.19  mrg 
   2725  1.1.1.20  mrg 2021-03-29  Paul Keir  <paul.keir (a] uws.ac.uk>
   2726  1.1.1.19  mrg 
   2727  1.1.1.20  mrg 	Backported from master:
   2728  1.1.1.20  mrg 	2020-06-15  Paul Keir  <paul.keir (a] uws.ac.uk>
   2729  1.1.1.19  mrg 
   2730  1.1.1.20  mrg 	* include/bits/char_traits.h (char_traits::move): constexpr move with
   2731  1.1.1.20  mrg 	overlap was using copy_backward incorrectly.
   2732  1.1.1.20  mrg 	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
   2733  1.1.1.20  mrg 	New test.
   2734  1.1.1.19  mrg 
   2735  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2736  1.1.1.19  mrg 
   2737  1.1.1.20  mrg 	Backported from master:
   2738  1.1.1.20  mrg 	2020-07-31  Jonathan Wakely  <jwakely (a] redhat.com>
   2739  1.1.1.19  mrg 
   2740  1.1.1.20  mrg 	* testsuite/20_util/time_point_cast/rounding.cc: Remove
   2741  1.1.1.20  mrg 	duplicate dg-do directive and add c++17 effective target.
   2742  1.1.1.19  mrg 
   2743  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2744  1.1.1.19  mrg 
   2745  1.1.1.20  mrg 	Backported from master:
   2746  1.1.1.20  mrg 	2020-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   2747  1.1.1.19  mrg 
   2748  1.1.1.20  mrg 	* testsuite/30_threads/thread/cons/84535.cc: Use a custom
   2749  1.1.1.20  mrg 	namespace.
   2750  1.1.1.20  mrg 	* testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
   2751  1.1.1.19  mrg 
   2752  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2753  1.1.1.19  mrg 
   2754  1.1.1.20  mrg 	Backported from master:
   2755  1.1.1.20  mrg 	2020-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   2756  1.1.1.19  mrg 
   2757  1.1.1.20  mrg 	* testsuite/lib/libstdc++.exp (libstdc++_init): Only set
   2758  1.1.1.20  mrg 	tool_timeout if it hasn't been set by the user already.
   2759  1.1.1.16  mrg 
   2760  1.1.1.20  mrg 2021-03-29  Moritz Sichert  <sichert (a] in.tum.de>
   2761  1.1.1.19  mrg 
   2762  1.1.1.20  mrg 	Backported from master:
   2763  1.1.1.20  mrg 	2021-03-23  Moritz Sichert  <sichert (a] in.tum.de>
   2764  1.1.1.19  mrg 
   2765  1.1.1.20  mrg 	* include/std/ranges (reverse_view::begin, reverse_view::end):
   2766  1.1.1.20  mrg 	Qualify make_reverse_iterator calls to avoid ADL.
   2767  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/reverse.cc: Test that
   2768  1.1.1.20  mrg 	views::reverse works when make_reverse_iterator is defined
   2769  1.1.1.20  mrg 	in an associated namespace.
   2770  1.1.1.19  mrg 
   2771  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2772  1.1.1.19  mrg 
   2773  1.1.1.20  mrg 	Backported from master:
   2774  1.1.1.20  mrg 	2021-03-22  Jonathan Wakely  <jwakely (a] redhat.com>
   2775  1.1.1.19  mrg 
   2776  1.1.1.20  mrg 	* include/bits/range_access.h (begin(T (&)[N]), end(T (&)[N])):
   2777  1.1.1.20  mrg 	Add missing 'noexcept' as per LWG 2280.
   2778  1.1.1.20  mrg 	(rbegin(T (&)[N]), rend(T (&)[N]), rbegin(initializer_list<T>))
   2779  1.1.1.20  mrg 	(rend(initializer_list<T>)): Add 'noexcept' as per LWG 3537.
   2780  1.1.1.20  mrg 	* testsuite/24_iterators/range_access/range_access.cc: Check for
   2781  1.1.1.20  mrg 	expected noexcept specifiers. Check result types of generic
   2782  1.1.1.20  mrg 	std::begin and std::end overloads.
   2783  1.1.1.20  mrg 	* testsuite/24_iterators/range_access/range_access_cpp14.cc:
   2784  1.1.1.20  mrg 	Check for expected noexcept specifiers.
   2785  1.1.1.20  mrg 	* testsuite/24_iterators/range_access/range_access_cpp17.cc:
   2786  1.1.1.19  mrg 	Likewise.
   2787  1.1.1.18  mrg 
   2788  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2789  1.1.1.19  mrg 
   2790  1.1.1.20  mrg 	Backported from master:
   2791  1.1.1.20  mrg 	2021-03-11  Jonathan Wakely  <jwakely (a] redhat.com>
   2792  1.1.1.19  mrg 
   2793  1.1.1.20  mrg 	PR libstdc++/99537
   2794  1.1.1.20  mrg 	* include/std/stop_token (_Stop_state_t::_M_release_ownership):
   2795  1.1.1.20  mrg 	Use acq_rel memory ordering.
   2796  1.1.1.19  mrg 
   2797  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2798  1.1.1.19  mrg 
   2799  1.1.1.20  mrg 	Backported from master:
   2800  1.1.1.20  mrg 	2021-03-11  Jonathan Wakely  <jwakely (a] redhat.com>
   2801  1.1.1.18  mrg 
   2802  1.1.1.20  mrg 	PR libstdc++/99533
   2803  1.1.1.20  mrg 	* src/c++17/fs_dir.cc (recursive_directory_iterator): Use new
   2804  1.1.1.20  mrg 	helper function to check for permission denied errors.
   2805  1.1.1.20  mrg 	* src/filesystem/dir.cc (recursive_directory_iterator):
   2806  1.1.1.20  mrg 	Likewise.
   2807  1.1.1.20  mrg 	* src/filesystem/dir-common.h (is_permission_denied_error): New
   2808  1.1.1.20  mrg 	helper function.
   2809  1.1.1.18  mrg 
   2810  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2811  1.1.1.18  mrg 
   2812  1.1.1.20  mrg 	Backported from master:
   2813  1.1.1.20  mrg 	2021-03-11  Jonathan Wakely  <jwakely (a] redhat.com>
   2814  1.1.1.16  mrg 
   2815  1.1.1.20  mrg 	PR libstdc++/99536
   2816  1.1.1.20  mrg 	* include/bits/random.h (normal_distribution): Use
   2817  1.1.1.20  mrg 	default-initializer for _M_saved and _M_saved_available.
   2818  1.1.1.16  mrg 
   2819  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2820  1.1.1.19  mrg 
   2821  1.1.1.20  mrg 	Backported from master:
   2822  1.1.1.20  mrg 	2021-03-10  Jonathan Wakely  <jwakely (a] redhat.com>
   2823  1.1.1.19  mrg 
   2824  1.1.1.20  mrg 	* include/bits/range_cmp.h (__eq_builtin_ptr_cmp): Remove.
   2825  1.1.1.20  mrg 	(ranges::equal_to, ranges::not_equal_to): Do not constrain
   2826  1.1.1.20  mrg 	with __eq_builtin_ptr_cmp.
   2827  1.1.1.20  mrg 	(ranges::less, ranges::greater, ranges::less_equal)
   2828  1.1.1.20  mrg 	(ranges::greater_equal): Do not constrain with
   2829  1.1.1.20  mrg 	__less_builtin_ptr_cmp.
   2830  1.1.1.20  mrg 	* libsupc++/compare (compare_three_way): Do not constrain with
   2831  1.1.1.20  mrg 	__3way_builtin_ptr_cmp.
   2832  1.1.1.20  mrg 	* testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc: Moved to...
   2833  1.1.1.20  mrg 	* testsuite/18_support/comparisons/object/lwg3530.cc: ...here.
   2834  1.1.1.20  mrg 	* testsuite/20_util/function_objects/range.cmp/lwg3530.cc: New test.
   2835  1.1.1.19  mrg 
   2836  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2837  1.1.1.19  mrg 
   2838  1.1.1.20  mrg 	Backported from master:
   2839  1.1.1.20  mrg 	2021-02-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2840  1.1.1.16  mrg 
   2841  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2014.xml: Document implementation
   2842  1.1.1.20  mrg 	specific properties of std::experimental::filesystem::rename.
   2843  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2017.xml: Document implementation
   2844  1.1.1.20  mrg 	specific properties of std::filesystem::rename.
   2845  1.1.1.16  mrg 	* doc/html/*: Regenerate.
   2846  1.1.1.20  mrg 	* src/c++17/fs_ops.cc (fs::rename): Implement correct behaviour
   2847  1.1.1.20  mrg 	for directories on Windows.
   2848  1.1.1.20  mrg 	* src/filesystem/ops-common.h (__gnu_posix::rename): Use
   2849  1.1.1.20  mrg 	MoveFileExW on Windows.
   2850  1.1.1.20  mrg 	* testsuite/27_io/filesystem/operations/rename.cc: New test.
   2851  1.1.1.20  mrg 	* testsuite/experimental/filesystem/operations/rename.cc: New test.
   2852  1.1.1.20  mrg 
   2853  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2854  1.1.1.20  mrg 
   2855  1.1.1.20  mrg 	Backported from master:
   2856  1.1.1.20  mrg 	2021-02-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2857  1.1.1.20  mrg 
   2858  1.1.1.20  mrg 	* testsuite/util/testsuite_fs.h (nonexistent_path): Add
   2859  1.1.1.20  mrg 	random number to the path.
   2860  1.1.1.20  mrg 
   2861  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2862  1.1.1.20  mrg 
   2863  1.1.1.20  mrg 	Backported from master:
   2864  1.1.1.20  mrg 	2021-02-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2865  1.1.1.20  mrg 
   2866  1.1.1.20  mrg 	* include/experimental/internet (address_v6::to_string): Include
   2867  1.1.1.20  mrg 	scope ID in string.
   2868  1.1.1.20  mrg 	(address_v6::loopback): Fix to be constexpr in C++14.
   2869  1.1.1.20  mrg 	* testsuite/experimental/net/internet/address/v6/members.cc:
   2870  1.1.1.20  mrg 	Test to_string() results.
   2871  1.1.1.20  mrg 
   2872  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2873  1.1.1.20  mrg 
   2874  1.1.1.20  mrg 	Backported from master:
   2875  1.1.1.20  mrg 	2021-02-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2876  1.1.1.20  mrg 
   2877  1.1.1.20  mrg 	* include/experimental/internet (address_v6::any): Avoid using
   2878  1.1.1.20  mrg 	memcpy in constexpr function.
   2879  1.1.1.20  mrg 	(address_v6::loopback): Likewise.
   2880  1.1.1.20  mrg 	(make_address_v6): Fix missing return statements on error paths.
   2881  1.1.1.20  mrg 	* include/experimental/io_context: Avoid -Wdangling-else
   2882  1.1.1.20  mrg 	warning.
   2883  1.1.1.20  mrg 	* testsuite/experimental/net/internet/address/v4/members.cc:
   2884  1.1.1.20  mrg 	Remove unused variables.
   2885  1.1.1.20  mrg 	* testsuite/experimental/net/internet/address/v6/members.cc:
   2886  1.1.1.20  mrg 	New test.
   2887  1.1.1.16  mrg 
   2888  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2889  1.1.1.16  mrg 
   2890  1.1.1.20  mrg 	Backported from master:
   2891  1.1.1.20  mrg 	2020-10-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2892  1.1.1.16  mrg 
   2893  1.1.1.20  mrg 	* testsuite/25_algorithms/all_of/constexpr.cc: Check result of
   2894  1.1.1.20  mrg 	the algorithm.
   2895  1.1.1.20  mrg 	* testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
   2896  1.1.1.20  mrg 	* testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
   2897  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
   2898  1.1.1.20  mrg 	* testsuite/25_algorithms/count/constexpr.cc: Likewise.
   2899  1.1.1.20  mrg 	* testsuite/25_algorithms/equal/constexpr.cc: Likewise.
   2900  1.1.1.20  mrg 	* testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
   2901  1.1.1.20  mrg 	* testsuite/25_algorithms/fill/constexpr.cc: Likewise.
   2902  1.1.1.20  mrg 	* testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
   2903  1.1.1.20  mrg 	* testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
   2904  1.1.1.20  mrg 	* testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
   2905  1.1.1.20  mrg 	* testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
   2906  1.1.1.20  mrg 	* testsuite/25_algorithms/is_sorted_until/constexpr.cc:
   2907  1.1.1.20  mrg 	Likewise.
   2908  1.1.1.20  mrg 	* testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
   2909  1.1.1.20  mrg 	Likewise.
   2910  1.1.1.20  mrg 	* testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
   2911  1.1.1.20  mrg 	* testsuite/25_algorithms/merge/constexpr.cc: Likewise.
   2912  1.1.1.20  mrg 	* testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
   2913  1.1.1.20  mrg 	* testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
   2914  1.1.1.20  mrg 	* testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
   2915  1.1.1.20  mrg 	* testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
   2916  1.1.1.20  mrg 	* testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
   2917  1.1.1.20  mrg 	* testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
   2918  1.1.1.20  mrg 	* testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
   2919  1.1.1.20  mrg 	* testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
   2920  1.1.1.20  mrg 	* testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
   2921  1.1.1.20  mrg 	* testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
   2922  1.1.1.20  mrg 	* testsuite/25_algorithms/search/constexpr.cc: Likewise.
   2923  1.1.1.20  mrg 	* testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
   2924  1.1.1.20  mrg 	* testsuite/25_algorithms/set_intersection/constexpr.cc:
   2925  1.1.1.20  mrg 	Likewise.
   2926  1.1.1.20  mrg 	* testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
   2927  1.1.1.20  mrg 	Likewise.
   2928  1.1.1.20  mrg 	* testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
   2929  1.1.1.20  mrg 	* testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
   2930  1.1.1.20  mrg 	* testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
   2931  1.1.1.20  mrg 
   2932  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2933  1.1.1.20  mrg 
   2934  1.1.1.20  mrg 	Backported from master:
   2935  1.1.1.20  mrg 	2021-02-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2936  1.1.1.20  mrg 
   2937  1.1.1.20  mrg 	PR libstdc++/99077
   2938  1.1.1.20  mrg 	* src/c++11/cxx11-ios_failure.cc (__ios_failure(const char*, int)):
   2939  1.1.1.20  mrg 	Change int parameter to error_code, to match std::ios_failure.
   2940  1.1.1.20  mrg 	(__throw_ios_failure(const char*, int)): Construct error_code
   2941  1.1.1.20  mrg 	from int parameter.
   2942  1.1.1.20  mrg 
   2943  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2944  1.1.1.20  mrg 
   2945  1.1.1.20  mrg 	Backported from master:
   2946  1.1.1.20  mrg 	2021-02-11  Jonathan Wakely  <jwakely (a] redhat.com>
   2947  1.1.1.20  mrg 
   2948  1.1.1.20  mrg 	PR libstdc++/99058
   2949  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2011.xml: Document when support
   2950  1.1.1.20  mrg 	became stable.
   2951  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2014.xml: Likewise.
   2952  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2017.xml: Likewise.
   2953  1.1.1.20  mrg 	* doc/html/manual/status.html: Regenerate.
   2954  1.1.1.19  mrg 
   2955  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2956  1.1.1.19  mrg 
   2957  1.1.1.20  mrg 	Backported from master:
   2958  1.1.1.20  mrg 	2021-02-12  Jonathan Wakely  <jwakely (a] redhat.com>
   2959  1.1.1.19  mrg 
   2960  1.1.1.20  mrg 	PR libstdc++/88881
   2961  1.1.1.20  mrg 	* src/c++17/fs_ops.cc (fs::symlink_status): Re-enable workaround.
   2962  1.1.1.19  mrg 
   2963  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2964  1.1.1.19  mrg 
   2965  1.1.1.20  mrg 	Backported from master:
   2966  1.1.1.20  mrg 	2021-02-10  Jonathan Wakely  <jwakely (a] redhat.com>
   2967  1.1.1.19  mrg 
   2968  1.1.1.20  mrg 	PR libstdc++/88881
   2969  1.1.1.20  mrg 	* src/c++17/fs_ops.cc (fs::status): Re-enable workaround.
   2970  1.1.1.19  mrg 
   2971  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2972  1.1.1.19  mrg 
   2973  1.1.1.20  mrg 	Backported from master:
   2974  1.1.1.20  mrg 	2021-02-10  Jonathan Wakely  <jwakely (a] redhat.com>
   2975  1.1.1.18  mrg 
   2976  1.1.1.20  mrg 	* src/c++17/fs_ops.cc (fs::create_hard_link, fs::equivalent)
   2977  1.1.1.20  mrg 	(fs::remove): Use std::system_category() for error codes from
   2978  1.1.1.20  mrg 	GetLastError().
   2979  1.1.1.20  mrg 	* src/filesystem/ops.cc (fs::create_hard_link, fs::remove):
   2980  1.1.1.20  mrg 	Likewise.
   2981  1.1.1.16  mrg 
   2982  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2983  1.1.1.19  mrg 
   2984  1.1.1.20  mrg 	Backported from master:
   2985  1.1.1.20  mrg 	2021-02-10  Jonathan Wakely  <jwakely (a] redhat.com>
   2986  1.1.1.19  mrg 
   2987  1.1.1.20  mrg 	* testsuite/27_io/filesystem/operations/proximate.cc: Fix typo
   2988  1.1.1.20  mrg 	in __MINGW32__ macro name.
   2989  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
   2990  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generation/proximate.cc:
   2991  1.1.1.20  mrg 	Likewise.
   2992  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generation/relative.cc:
   2993  1.1.1.20  mrg 	Likewise.
   2994  1.1.1.20  mrg 	* testsuite/util/testsuite_fs.h: Likewise.
   2995  1.1.1.16  mrg 
   2996  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   2997  1.1.1.16  mrg 
   2998  1.1.1.20  mrg 	Backported from master:
   2999  1.1.1.20  mrg 	2021-02-03  Jonathan Wakely  <jwakely (a] redhat.com>
   3000  1.1.1.19  mrg 
   3001  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_code/operators/not_equal.cc:
   3002  1.1.1.20  mrg 	Add comparison with same category and different values.
   3003  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_code/operators/less.cc:
   3004  1.1.1.20  mrg 	Likewise. Fix comparison involving different categories.
   3005  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_code/operators/three_way.cc:
   3006  1.1.1.19  mrg 	Likewise.
   3007  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_condition/operators/less.cc:
   3008  1.1.1.20  mrg 	Add comment.
   3009  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_condition/operators/three_way.cc:
   3010  1.1.1.19  mrg 	Likewise.
   3011  1.1.1.19  mrg 
   3012  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3013  1.1.1.19  mrg 
   3014  1.1.1.20  mrg 	Backported from master:
   3015  1.1.1.20  mrg 	2020-12-16  Jonathan Wakely  <jwakely (a] redhat.com>
   3016  1.1.1.19  mrg 
   3017  1.1.1.20  mrg 	PR libstdc++/98319
   3018  1.1.1.20  mrg 	* include/experimental/random: Only define contents for C++14
   3019  1.1.1.20  mrg 	and later.
   3020  1.1.1.20  mrg 	* include/experimental/source_location: Likewise.
   3021  1.1.1.20  mrg 	* include/experimental/utility: Likewise.
   3022  1.1.1.20  mrg 	* testsuite/experimental/feat-lib-fund.cc: Include all LFTS
   3023  1.1.1.20  mrg 	headers that are present. Allow test to run for all modes.
   3024  1.1.1.19  mrg 
   3025  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3026  1.1.1.19  mrg 
   3027  1.1.1.20  mrg 	Backported from master:
   3028  1.1.1.20  mrg 	2020-12-16  Jonathan Wakely  <jwakely (a] redhat.com>
   3029  1.1.1.19  mrg 
   3030  1.1.1.20  mrg 	PR libstdc++/93151
   3031  1.1.1.20  mrg 	* acinclude.m4 (GLIBCXX_CHECK_SYSTEM_ERROR): Remove.
   3032  1.1.1.20  mrg 	* configure.ac: Regenerate.
   3033  1.1.1.20  mrg 	* config/os/generic/error_constants.h: Test POSIX errno macros
   3034  1.1.1.20  mrg 	directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros.
   3035  1.1.1.20  mrg 	* testsuite/19_diagnostics/headers/system_error/errc_std_c++0x.cc:
   3036  1.1.1.20  mrg 	Likewise.
   3037  1.1.1.20  mrg 	* testsuite/19_diagnostics/headers/system_error/93151.cc: New
   3038  1.1.1.20  mrg 	test.
   3039  1.1.1.19  mrg 
   3040  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3041  1.1.1.19  mrg 
   3042  1.1.1.20  mrg 	Backported from master:
   3043  1.1.1.20  mrg 	2020-12-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3044  1.1.1.19  mrg 
   3045  1.1.1.20  mrg 	PR libstdc++/98226
   3046  1.1.1.20  mrg 	* include/std/bit (__countl_one, __countr_one): Remove redundant
   3047  1.1.1.20  mrg 	branches.
   3048  1.1.1.19  mrg 
   3049  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3050  1.1.1.19  mrg 
   3051  1.1.1.20  mrg 	Backported from master:
   3052  1.1.1.20  mrg 	2020-11-09  Jonathan Wakely  <jwakely (a] redhat.com>
   3053  1.1.1.19  mrg 
   3054  1.1.1.20  mrg 	* include/std/bit (__popcount): Remove redundant check for zero.
   3055  1.1.1.19  mrg 
   3056  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3057  1.1.1.19  mrg 
   3058  1.1.1.20  mrg 	Backported from master:
   3059  1.1.1.20  mrg 	2020-10-30  Jonathan Wakely  <jwakely (a] redhat.com>
   3060  1.1.1.19  mrg 
   3061  1.1.1.20  mrg 	* include/std/ranges (enable_borrowed_view<take_view<T>>)
   3062  1.1.1.20  mrg 	(enable_borrowed_view<drop_view<T>>)
   3063  1.1.1.20  mrg 	(enable_borrowed_view<drop_while_view<T>>)
   3064  1.1.1.20  mrg 	(enable_borrowed_view<reverse_view<T>>)
   3065  1.1.1.20  mrg 	(enable_borrowed_view<common_view<T>>)
   3066  1.1.1.20  mrg 	(enable_borrowed_view<elements_view<T>>): Add partial
   3067  1.1.1.20  mrg 	specializations as per P2017R1.
   3068  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/conditionally_borrowed.cc:
   3069  1.1.1.20  mrg 	New test.
   3070  1.1.1.19  mrg 
   3071  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3072  1.1.1.19  mrg 
   3073  1.1.1.20  mrg 	Backported from master:
   3074  1.1.1.20  mrg 	2020-10-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3075  1.1.1.19  mrg 
   3076  1.1.1.20  mrg 	* include/std/ranges (subrange::subrange(R&&)): Use
   3077  1.1.1.20  mrg 	direct-initialization instead of list-initialization, so a
   3078  1.1.1.20  mrg 	potential narrowing conversion from ranges::size(r) to the
   3079  1.1.1.20  mrg 	stored size isn't ill-formed.
   3080  1.1.1.19  mrg 
   3081  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3082  1.1.1.16  mrg 
   3083  1.1.1.20  mrg 	Backported from master:
   3084  1.1.1.20  mrg 	2020-10-08  Jonathan Wakely  <jwakely (a] redhat.com>
   3085  1.1.1.19  mrg 
   3086  1.1.1.20  mrg 	PR libstdc++/82584
   3087  1.1.1.20  mrg 	* include/bits/random.tcc
   3088  1.1.1.20  mrg 	(discrete_distribution::param_type::_M_initialize)
   3089  1.1.1.20  mrg 	(piecewise_constant_distribution::param_type::_M_initialize)
   3090  1.1.1.20  mrg 	(piecewise_linear_distribution::param_type::_M_initialize):
   3091  1.1.1.20  mrg 	Add assertions for positive sums..
   3092  1.1.1.20  mrg 	* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
   3093  1.1.1.20  mrg 	line.
   3094  1.1.1.19  mrg 
   3095  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3096  1.1.1.19  mrg 
   3097  1.1.1.20  mrg 	Backported from master:
   3098  1.1.1.20  mrg 	2020-10-08  Jonathan Wakely  <jwakely (a] redhat.com>
   3099  1.1.1.18  mrg 
   3100  1.1.1.20  mrg 	* include/bits/random.h (__detail::_Mod): Revert last change.
   3101  1.1.1.20  mrg 	(__detail::__mod): Do not use _Mod for a==0 case.
   3102  1.1.1.20  mrg 	* testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc:
   3103  1.1.1.20  mrg 	Check other cases with a==0. Also check runtime results.
   3104  1.1.1.20  mrg 	* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
   3105  1.1.1.20  mrg 	line.
   3106  1.1.1.18  mrg 
   3107  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3108  1.1.1.18  mrg 
   3109  1.1.1.20  mrg 	Backported from master:
   3110  1.1.1.20  mrg 	2020-10-07  Jonathan Wakely  <jwakely (a] redhat.com>
   3111  1.1.1.18  mrg 
   3112  1.1.1.20  mrg 	* include/bits/random.h (__detail::_Mod): Avoid divide by zero.
   3113  1.1.1.20  mrg 	* testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc:
   3114  1.1.1.20  mrg 	New test.
   3115  1.1.1.18  mrg 
   3116  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3117  1.1.1.18  mrg 
   3118  1.1.1.20  mrg 	Backported from master:
   3119  1.1.1.20  mrg 	2020-09-21  Jonathan Wakely  <jwakely (a] redhat.com>
   3120  1.1.1.18  mrg 
   3121  1.1.1.20  mrg 	* include/std/ranges (drop_view::begin()): Adjust constraints
   3122  1.1.1.20  mrg 	to match the correct condition for O(1) ranges::next (LWG 3482).
   3123  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/drop.cc: Check that iterator is
   3124  1.1.1.20  mrg 	cached for non-sized_range.
   3125  1.1.1.16  mrg 
   3126  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3127  1.1.1.16  mrg 
   3128  1.1.1.20  mrg 	Backported from master:
   3129  1.1.1.20  mrg 	2020-09-21  Jonathan Wakely  <jwakely (a] redhat.com>
   3130  1.1.1.16  mrg 
   3131  1.1.1.20  mrg 	* include/std/ranges (transform_view, elements_view): Relax
   3132  1.1.1.20  mrg 	constraints on operator- for iterators, as per LWG 3483.
   3133  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/elements.cc: Check that we
   3134  1.1.1.20  mrg 	can take the difference of two iterators from a non-random
   3135  1.1.1.20  mrg 	access range.
   3136  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/transform.cc: Likewise.
   3137  1.1.1.16  mrg 
   3138  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3139  1.1.1.16  mrg 
   3140  1.1.1.20  mrg 	Backported from master:
   3141  1.1.1.20  mrg 	2020-10-28  Jonathan Wakely  <jwakely (a] redhat.com>
   3142  1.1.1.19  mrg 
   3143  1.1.1.20  mrg 	PR libstdc++/95592
   3144  1.1.1.20  mrg 	* include/bits/valarray_after.h (_DEFINE_EXPR_UNARY_OPERATOR)
   3145  1.1.1.20  mrg 	(_DEFINE_EXPR_BINARY_OPERATOR, _DEFINE_EXPR_BINARY_FUNCTION):
   3146  1.1.1.20  mrg 	Use elaborated-type-specifier and qualified-id to avoid
   3147  1.1.1.20  mrg 	ambiguities with QNX system headers.
   3148  1.1.1.20  mrg 	* testsuite/26_numerics/valarray/95592.cc: New test.
   3149  1.1.1.19  mrg 
   3150  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3151  1.1.1.19  mrg 
   3152  1.1.1.20  mrg 	Backported from master:
   3153  1.1.1.20  mrg 	2020-10-27  Jonathan Wakely  <jwakely (a] redhat.com>
   3154  1.1.1.19  mrg 
   3155  1.1.1.20  mrg 	* include/bits/locale_conv.h (__str_codecvt_out_all):
   3156  1.1.1.20  mrg 	Add cast to compare operands of the same signedness.
   3157  1.1.1.20  mrg 	* include/bits/locale_facets_nonio.tcc
   3158  1.1.1.20  mrg 	(time_get::_M_extract_wday_or_month): Likewise.
   3159  1.1.1.20  mrg 	* include/bits/sstream.tcc (basic_stringbuf::overflow):
   3160  1.1.1.20  mrg 	Likewise.
   3161  1.1.1.20  mrg 	* include/tr1/legendre_function.tcc (__sph_legendre): Use
   3162  1.1.1.20  mrg 	unsigned for loop variable.
   3163  1.1.1.19  mrg 
   3164  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3165  1.1.1.19  mrg 
   3166  1.1.1.20  mrg 	Backported from master:
   3167  1.1.1.20  mrg 	2020-09-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3168  1.1.1.19  mrg 
   3169  1.1.1.20  mrg 	* include/bits/locale_conv.h (__do_str_codecvt, __str_codecvt_in_all):
   3170  1.1.1.20  mrg 	Add casts to compare types of the same signedness.
   3171  1.1.1.19  mrg 
   3172  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3173  1.1.1.19  mrg 
   3174  1.1.1.20  mrg 	Backported from master:
   3175  1.1.1.20  mrg 	2020-09-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3176  1.1.1.19  mrg 
   3177  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__equal_fn): Remove unused
   3178  1.1.1.20  mrg 	typedef.
   3179  1.1.1.19  mrg 
   3180  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3181  1.1.1.19  mrg 
   3182  1.1.1.20  mrg 	Backported from master:
   3183  1.1.1.20  mrg 	2020-09-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3184  1.1.1.19  mrg 
   3185  1.1.1.20  mrg 	* include/experimental/bits/shared_ptr.h (shared_ptr(auto_ptr&&))
   3186  1.1.1.20  mrg 	(operator=(auto_ptr&&)): Add diagnostic pragmas to suppress
   3187  1.1.1.20  mrg 	warnings for uses of std::auto_ptr.
   3188  1.1.1.20  mrg 	* include/experimental/type_traits (is_literal_type_v):
   3189  1.1.1.20  mrg 	Likewise, for use of std::is_literal_type.
   3190  1.1.1.20  mrg 	* include/std/condition_variable (condition_variable_any::_Unlock):
   3191  1.1.1.20  mrg 	Likewise, for use of std::uncaught_exception.
   3192  1.1.1.19  mrg 
   3193  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3194  1.1.1.19  mrg 
   3195  1.1.1.20  mrg 	Backported from master:
   3196  1.1.1.20  mrg 	2020-09-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3197  1.1.1.19  mrg 
   3198  1.1.1.20  mrg 	* include/bits/fs_path.h (path::_List::type()): Avoid narrowing
   3199  1.1.1.20  mrg 	conversion.
   3200  1.1.1.19  mrg 
   3201  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3202  1.1.1.16  mrg 
   3203  1.1.1.20  mrg 	Backported from master:
   3204  1.1.1.20  mrg 	2020-09-07  Jonathan Wakely  <jwakely (a] redhat.com>
   3205  1.1.1.16  mrg 
   3206  1.1.1.20  mrg 	* include/std/ranges (__box): Simplify constraints as per LWG 3477.
   3207  1.1.1.16  mrg 
   3208  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3209  1.1.1.19  mrg 
   3210  1.1.1.20  mrg 	Backported from master:
   3211  1.1.1.20  mrg 	2020-08-24  Jonathan Wakely  <jwakely (a] redhat.com>
   3212  1.1.1.16  mrg 
   3213  1.1.1.20  mrg 	* include/std/ranges (ranges::iota_view::size()): Perform all
   3214  1.1.1.20  mrg 	calculations in the right unsigned types.
   3215  1.1.1.20  mrg 	* testsuite/std/ranges/iota/size.cc: New test.
   3216  1.1.1.16  mrg 
   3217  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3218  1.1.1.16  mrg 
   3219  1.1.1.20  mrg 	Backported from master:
   3220  1.1.1.20  mrg 	2020-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   3221  1.1.1.16  mrg 
   3222  1.1.1.20  mrg 	* include/experimental/executor (system_context::_M_run()):
   3223  1.1.1.20  mrg 	Fix predicate.
   3224  1.1.1.20  mrg 	(system_context::join()): Do not join unless joinable.
   3225  1.1.1.20  mrg 	* testsuite/experimental/net/system_context/1.cc: New test.
   3226  1.1.1.18  mrg 
   3227  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3228  1.1.1.18  mrg 
   3229  1.1.1.20  mrg 	Backported from master:
   3230  1.1.1.20  mrg 	2020-08-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3231  1.1.1.18  mrg 
   3232  1.1.1.20  mrg 	* include/bits/stl_iterator.h (inserter): Do not deduce
   3233  1.1.1.20  mrg 	iterator type (LWG 561).
   3234  1.1.1.20  mrg 	* testsuite/24_iterators/insert_iterator/dr561.cc: New test.
   3235  1.1.1.18  mrg 
   3236  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3237  1.1.1.19  mrg 
   3238  1.1.1.20  mrg 	Backported from master:
   3239  1.1.1.20  mrg 	2020-10-27  Jonathan Wakely  <jwakely (a] redhat.com>
   3240  1.1.1.19  mrg 
   3241  1.1.1.20  mrg 	* include/bits/fs_path.h (path::_List::begin, path::_List::end):
   3242  1.1.1.20  mrg 	Add noexcept to match definitions in src/c++17/fs_path.cc.
   3243  1.1.1.19  mrg 
   3244  1.1.1.20  mrg 2021-03-29  Jonathan Wakely  <jwakely (a] redhat.com>
   3245  1.1.1.19  mrg 
   3246  1.1.1.20  mrg 	Backported from master:
   3247  1.1.1.20  mrg 	2020-10-27  Jonathan Wakely  <jwakely (a] redhat.com>
   3248  1.1.1.19  mrg 
   3249  1.1.1.20  mrg 	* src/c++17/fs_dir.cc (fs::directory_iterator::operator*):
   3250  1.1.1.20  mrg 	Add noexcept. Do not throw on precondition violation.
   3251  1.1.1.19  mrg 
   3252  1.1.1.20  mrg 2021-03-19  Jakub Jelinek  <jakub (a] redhat.com>
   3253  1.1.1.19  mrg 
   3254  1.1.1.20  mrg 	Backported from master:
   3255  1.1.1.20  mrg 	2021-02-23  Jakub Jelinek  <jakub (a] redhat.com>
   3256  1.1.1.19  mrg 
   3257  1.1.1.20  mrg 	PR libstdc++/99181
   3258  1.1.1.20  mrg 	* testsuite/21_strings/char_traits/requirements/char/99181.cc: New
   3259  1.1.1.20  mrg 	test.
   3260  1.1.1.19  mrg 
   3261  1.1.1.20  mrg 2021-03-19  Jakub Jelinek  <jakub (a] redhat.com>
   3262  1.1.1.19  mrg 
   3263  1.1.1.20  mrg 	Backported from master:
   3264  1.1.1.20  mrg 	2021-02-23  Jakub Jelinek  <jakub (a] redhat.com>
   3265  1.1.1.19  mrg 
   3266  1.1.1.20  mrg 	PR libstdc++/99181
   3267  1.1.1.20  mrg 	* include/bits/char_traits.h (char_traits<char>::compare): For
   3268  1.1.1.20  mrg 	constexpr evaluation don't call
   3269  1.1.1.20  mrg 	__gnu_cxx::char_traits<char_type>::compare but do the comparison loop
   3270  1.1.1.20  mrg 	directly.
   3271  1.1.1.19  mrg 
   3272  1.1.1.20  mrg 2021-02-09  Jonathan Wakely  <jwakely (a] redhat.com>
   3273  1.1.1.19  mrg 
   3274  1.1.1.20  mrg 	Backported from master:
   3275  1.1.1.20  mrg 	2021-02-09  Jonathan Wakely  <jwakely (a] redhat.com>
   3276  1.1.1.19  mrg 
   3277  1.1.1.20  mrg 	PR libstdc++/99021
   3278  1.1.1.20  mrg 	* include/std/coroutine (coroutine_handle<P>::from_address): Add
   3279  1.1.1.20  mrg 	noexcept.
   3280  1.1.1.19  mrg 
   3281  1.1.1.20  mrg 2021-01-13  Jonathan Wakely  <jwakely (a] redhat.com>
   3282  1.1.1.19  mrg 
   3283  1.1.1.20  mrg 	PR libstdc++/98605
   3284  1.1.1.20  mrg 	* include/std/mutex (call_once): Use NOLINT to suppress clang
   3285  1.1.1.20  mrg 	analyzer warnings.
   3286  1.1.1.19  mrg 
   3287  1.1.1.20  mrg 2021-01-11  Jonathan Wakely  <jwakely (a] redhat.com>
   3288  1.1.1.19  mrg 
   3289  1.1.1.20  mrg 	Backported from master:
   3290  1.1.1.20  mrg 	2020-12-02  Jonathan Wakely  <jwakely (a] redhat.com>
   3291  1.1.1.19  mrg 
   3292  1.1.1.20  mrg 	* python/libstdcxx/v6/printers.py (StdExpPathPrinter): Store the
   3293  1.1.1.20  mrg 	name of the type and pass it to the iterator.
   3294  1.1.1.20  mrg 	(StdPathPrinter): Likewise.
   3295  1.1.1.20  mrg 	* testsuite/libstdc++-prettyprinters/filesystem-ts.cc: New test.
   3296  1.1.1.19  mrg 
   3297  1.1.1.20  mrg 2021-01-11  Jonathan Wakely  <jwakely (a] redhat.com>
   3298  1.1.1.19  mrg 
   3299  1.1.1.20  mrg 	Backported from master:
   3300  1.1.1.20  mrg 	2020-12-16  Jonathan Wakely  <jwakely (a] redhat.com>
   3301  1.1.1.19  mrg 
   3302  1.1.1.20  mrg 	PR libstdc++/96083
   3303  1.1.1.20  mrg 	* include/ext/throw_allocator.h: Use __has_builtin to check for
   3304  1.1.1.20  mrg 	__builtin_sprintf support, and use std::sprintf if necessary.
   3305  1.1.1.19  mrg 
   3306  1.1.1.20  mrg 2021-01-11  Jonathan Wakely  <jwakely (a] redhat.com>
   3307  1.1.1.19  mrg 
   3308  1.1.1.20  mrg 	Backported from master:
   3309  1.1.1.20  mrg 	2020-12-02  Jonathan Wakely  <jwakely (a] redhat.com>
   3310  1.1.1.19  mrg 
   3311  1.1.1.20  mrg 	PR libstdc++/65480
   3312  1.1.1.20  mrg 	PR libstdc++/68735
   3313  1.1.1.20  mrg 	* python/libstdcxx/v6/printers.py (function_pointer_to_name):
   3314  1.1.1.20  mrg 	New helper function to get the name of a function from its
   3315  1.1.1.20  mrg 	address.
   3316  1.1.1.20  mrg 	(StdExpAnyPrinter.__init__): Use it.
   3317  1.1.1.19  mrg 
   3318  1.1.1.20  mrg 2021-01-11  Jonathan Wakely  <jwakely (a] redhat.com>
   3319  1.1.1.18  mrg 
   3320  1.1.1.20  mrg 	Backported from master:
   3321  1.1.1.20  mrg 	2020-07-31  Jonathan Wakely  <jwakely (a] redhat.com>
   3322  1.1.1.18  mrg 
   3323  1.1.1.20  mrg 	* testsuite/experimental/filesystem/filesystem_error/cons.cc:
   3324  1.1.1.20  mrg 	Remove -std=gnu++17 option.
   3325  1.1.1.18  mrg 
   3326  1.1.1.20  mrg 2021-01-08  Iain Sandoe  <iain (a] sandoe.co.uk>
   3327  1.1.1.18  mrg 
   3328  1.1.1.20  mrg 	Backported from master:
   3329  1.1.1.20  mrg 	2020-07-17  Iain Sandoe  <iain (a] sandoe.co.uk>
   3330  1.1.1.16  mrg 
   3331  1.1.1.20  mrg 	* include/std/coroutine: Mark the methods of the
   3332  1.1.1.20  mrg 	trivial awaitables as constexpr.
   3333  1.1.1.16  mrg 
   3334  1.1.1.20  mrg 2021-01-03  Iain Sandoe  <iain (a] sandoe.co.uk>
   3335  1.1.1.20  mrg 	    Jakub Jelinek   <jakub (a] redhat.com>
   3336  1.1.1.18  mrg 
   3337  1.1.1.20  mrg 	PR target/97865
   3338  1.1.1.20  mrg 	* configure: Regenerate.
   3339  1.1.1.18  mrg 
   3340  1.1.1.20  mrg 2020-12-03  Jonathan Wakely  <jwakely (a] redhat.com>
   3341  1.1.1.18  mrg 
   3342  1.1.1.20  mrg 	Backported from master:
   3343  1.1.1.20  mrg 	2020-12-03  Jonathan Wakely  <jwakely (a] redhat.com>
   3344  1.1.1.18  mrg 
   3345  1.1.1.20  mrg 	* config/abi/post/powerpc-linux-gnu/baseline_symbols.txt:
   3346  1.1.1.20  mrg 	Update.
   3347  1.1.1.20  mrg 	* config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt:
   3348  1.1.1.20  mrg 	Update.
   3349  1.1.1.18  mrg 
   3350  1.1.1.20  mrg 2020-12-01  Patrick Palka  <ppalka (a] redhat.com>
   3351  1.1.1.16  mrg 
   3352  1.1.1.20  mrg 	Backported from master:
   3353  1.1.1.20  mrg 	2020-10-12  Patrick Palka  <ppalka (a] redhat.com>
   3354  1.1.1.18  mrg 
   3355  1.1.1.20  mrg 	PR libstdc++/95322
   3356  1.1.1.20  mrg 	* include/std/ranges (take_view::_CI): Define this alias
   3357  1.1.1.20  mrg 	template as per LWG 3449 and remove ...
   3358  1.1.1.20  mrg 	(take_view::_Sentinel::_CI): ... this type alias.
   3359  1.1.1.20  mrg 	(take_view::_Sentinel::operator==): Adjust use of _CI
   3360  1.1.1.20  mrg 	accordingly.  Define a second overload that accepts an iterator
   3361  1.1.1.20  mrg 	of the opposite constness as per LWG 3449.
   3362  1.1.1.20  mrg 	(take_while_view::_Sentinel::operator==): Likewise.
   3363  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/95322.cc: Add tests for LWG 3449.
   3364  1.1.1.18  mrg 
   3365  1.1.1.20  mrg 2020-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   3366  1.1.1.18  mrg 
   3367  1.1.1.20  mrg 	Backported from master:
   3368  1.1.1.20  mrg 	2020-11-26  Jonathan Wakely  <jwakely (a] redhat.com>
   3369  1.1.1.19  mrg 
   3370  1.1.1.20  mrg 	PR libstdc++/98001
   3371  1.1.1.20  mrg 	* testsuite/ext/stdio_filebuf/char/79820.cc: Do not pass invalid
   3372  1.1.1.20  mrg 	FILE* to constructor.
   3373  1.1.1.19  mrg 
   3374  1.1.1.20  mrg 2020-11-25  Jonathan Wakely  <jwakely (a] redhat.com>
   3375  1.1.1.19  mrg 
   3376  1.1.1.20  mrg 	Backported from master:
   3377  1.1.1.20  mrg 	2020-11-25  Jonathan Wakely  <jwakely (a] redhat.com>
   3378  1.1.1.19  mrg 
   3379  1.1.1.20  mrg 	PR libstdc++/97935
   3380  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (__detail::__iter_without_category):
   3381  1.1.1.20  mrg 	New helper concept.
   3382  1.1.1.20  mrg 	(__iterator_traits::__cat): Use __detail::__iter_without_category.
   3383  1.1.1.20  mrg 	* testsuite/24_iterators/associated_types/iterator.traits.cc: New test.
   3384  1.1.1.19  mrg 
   3385  1.1.1.20  mrg 2020-11-25  Jonathan Wakely  <jwakely (a] redhat.com>
   3386  1.1.1.19  mrg 
   3387  1.1.1.20  mrg 	Backported from master:
   3388  1.1.1.20  mrg 	2020-06-04  Jonathan Wakely  <jwakely (a] redhat.com>
   3389  1.1.1.19  mrg 
   3390  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
   3391  1.1.1.20  mrg 	(__detail::__cat, __detail::__diff): Move to class scope in the
   3392  1.1.1.20  mrg 	relevant __iterator_traits specializations.
   3393  1.1.1.20  mrg 	(__iterator_traits<>): Use nested class templates instead of ones from
   3394  1.1.1.20  mrg 	namespace __detail.
   3395  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
   3396  1.1.1.20  mrg 	class scope in iterator_traits<common_iterator<I, S>>.
   3397  1.1.1.20  mrg 	(iterator_traits<common_iterator<I, S>>): Use nested class template
   3398  1.1.1.20  mrg 	instead of __detail::__common_iter_ptr.
   3399  1.1.1.19  mrg 
   3400  1.1.1.20  mrg 2020-11-24  Jonathan Wakely  <jwakely (a] redhat.com>
   3401  1.1.1.19  mrg 
   3402  1.1.1.20  mrg 	Backported from master:
   3403  1.1.1.20  mrg 	2020-10-02  Jonathan Wakely  <jwakely (a] redhat.com>
   3404  1.1.1.19  mrg 
   3405  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_float/value_init.cc: Use float
   3406  1.1.1.20  mrg 	instead of double so that __atomic_load_8 isn't needed.
   3407  1.1.1.19  mrg 
   3408  1.1.1.20  mrg 2020-11-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3409  1.1.1.18  mrg 
   3410  1.1.1.20  mrg 	Backported from master:
   3411  1.1.1.20  mrg 	2020-11-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3412  1.1.1.18  mrg 
   3413  1.1.1.20  mrg 	PR libstdc++/92546
   3414  1.1.1.20  mrg 	* include/std/regex (pmr::smatch, pmr::wsmatch): Declare using
   3415  1.1.1.20  mrg 	underlying __normal_iterator type, not nested typedef
   3416  1.1.1.20  mrg 	basic_string::const_iterator.
   3417  1.1.1.16  mrg 
   3418  1.1.1.20  mrg 2020-11-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3419  1.1.1.16  mrg 
   3420  1.1.1.20  mrg 	PR libstdc++/97876
   3421  1.1.1.20  mrg 	* include/std/stop_token (_Stop_state_t): Define default
   3422  1.1.1.20  mrg 	constructor as user-provided not defaulted.
   3423  1.1.1.19  mrg 
   3424  1.1.1.20  mrg 2020-11-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3425  1.1.1.19  mrg 
   3426  1.1.1.20  mrg 	Backported from master:
   3427  1.1.1.20  mrg 	2020-11-19  Jonathan Wakely  <jwakely (a] redhat.com>
   3428  1.1.1.16  mrg 
   3429  1.1.1.20  mrg 	PR libstdc++/95989
   3430  1.1.1.20  mrg 	* config/os/gnu-linux/os_defines.h (_GLIBCXX_NATIVE_THREAD_ID):
   3431  1.1.1.20  mrg 	Define new macro to get reliable thread ID.
   3432  1.1.1.20  mrg 	* include/std/stop_token (_Stop_state_t::_M_request_stop):
   3433  1.1.1.20  mrg 	Use new macro if it's defined.
   3434  1.1.1.20  mrg 	(_Stop_state_t::_M_remove_callback): Likewise.
   3435  1.1.1.20  mrg 	* include/std/thread (this_thread::get_id): Likewise.
   3436  1.1.1.20  mrg 	* testsuite/30_threads/jthread/95989.cc: New test.
   3437  1.1.1.20  mrg 	* testsuite/30_threads/this_thread/95989.cc: New test.
   3438  1.1.1.16  mrg 
   3439  1.1.1.20  mrg 2020-11-18  Patrick Palka  <ppalka (a] redhat.com>
   3440  1.1.1.16  mrg 
   3441  1.1.1.20  mrg 	Backported from master:
   3442  1.1.1.20  mrg 	2020-11-18  Patrick Palka  <ppalka (a] redhat.com>
   3443  1.1.1.16  mrg 
   3444  1.1.1.20  mrg 	* include/std/ranges (join_view::_Iterator::_M_satisfy): Uglify
   3445  1.1.1.20  mrg 	local variable inner.
   3446  1.1.1.20  mrg 	(join_view::_Iterator::operator->): Use _Inner_iter instead of
   3447  1.1.1.20  mrg 	_Outer_iter in the function signature as per LWG 3500.
   3448  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/join.cc (test08): Test it.
   3449  1.1.1.19  mrg 
   3450  1.1.1.20  mrg 2020-11-18  Jonathan Wakely  <jwakely (a] redhat.com>
   3451  1.1.1.19  mrg 
   3452  1.1.1.20  mrg 	Backported from master:
   3453  1.1.1.20  mrg 	2020-10-06  Jonathan Wakely  <jwakely (a] redhat.com>
   3454  1.1.1.16  mrg 
   3455  1.1.1.20  mrg 	* include/std/ranges (join_view): Remove deduction guide.
   3456  1.1.1.20  mrg 	(views::join): Add explicit template argument list to prevent
   3457  1.1.1.20  mrg 	deducing the wrong type.
   3458  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/join.cc: Move test for LWG 3474
   3459  1.1.1.20  mrg 	here, from ...
   3460  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/join_lwg3474.cc: Removed.
   3461  1.1.1.16  mrg 
   3462  1.1.1.20  mrg 2020-11-18  Jonathan Wakely  <jwakely (a] redhat.com>
   3463  1.1.1.16  mrg 
   3464  1.1.1.20  mrg 	Backported from master:
   3465  1.1.1.20  mrg 	2020-08-24  Jonathan Wakely  <jwakely (a] redhat.com>
   3466  1.1.1.16  mrg 
   3467  1.1.1.20  mrg 	* include/std/ranges (join_view): Add deduction guide (LWG 3474).
   3468  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/join_lwg3474.cc: New test.
   3469  1.1.1.16  mrg 
   3470  1.1.1.20  mrg 2020-11-18  Jonathan Wakely  <jwakely (a] redhat.com>
   3471  1.1.1.16  mrg 
   3472  1.1.1.20  mrg 	Backported from master:
   3473  1.1.1.20  mrg 	2020-09-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3474  1.1.1.16  mrg 
   3475  1.1.1.20  mrg 	* include/std/version (__cpp_lib_array_constexpr)
   3476  1.1.1.20  mrg 	(__cpp_lib_constexpr_char_traits): Only define C++17 value when
   3477  1.1.1.20  mrg 	compiling C++17.
   3478  1.1.1.16  mrg 
   3479  1.1.1.20  mrg 2020-11-18  Jonathan Wakely  <jwakely (a] redhat.com>
   3480  1.1.1.18  mrg 
   3481  1.1.1.20  mrg 	Backported from master:
   3482  1.1.1.20  mrg 	2020-06-15  Jonathan Wakely  <jwakely (a] redhat.com>
   3483  1.1.1.19  mrg 
   3484  1.1.1.20  mrg 	* include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
   3485  1.1.1.20  mrg 	Update value for C++20.
   3486  1.1.1.20  mrg 	* include/std/version (__cpp_lib_constexpr_char_traits): Likewise.
   3487  1.1.1.20  mrg 	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
   3488  1.1.1.20  mrg 	Update expected value.
   3489  1.1.1.19  mrg 
   3490  1.1.1.20  mrg 2020-11-18  Jonathan Wakely  <jwakely (a] redhat.com>
   3491  1.1.1.18  mrg 
   3492  1.1.1.20  mrg 	Backported from master:
   3493  1.1.1.20  mrg 	2020-11-17  Jonathan Wakely  <jwakely (a] redhat.com>
   3494  1.1.1.18  mrg 
   3495  1.1.1.20  mrg 	PR libstdc++/97869
   3496  1.1.1.20  mrg 	* include/precompiled/stdc++.h: Include <coroutine>.
   3497  1.1.1.20  mrg 	* include/std/version (__cpp_lib_span): Check __cpp_lib_concepts
   3498  1.1.1.20  mrg 	before defining.
   3499  1.1.1.18  mrg 
   3500  1.1.1.20  mrg 2020-11-17  Patrick Palka  <ppalka (a] redhat.com>
   3501  1.1.1.18  mrg 
   3502  1.1.1.20  mrg 	Backported from master:
   3503  1.1.1.20  mrg 	2020-11-17  Patrick Palka  <ppalka (a] redhat.com>
   3504  1.1.1.18  mrg 
   3505  1.1.1.20  mrg 	PR libstdc++/97828
   3506  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__search_n_fn::operator()): Check
   3507  1.1.1.20  mrg 	random_access_iterator before using the backtracking
   3508  1.1.1.20  mrg 	implementation.  When the backwards scan fails prematurely,
   3509  1.1.1.20  mrg 	reset __remainder appropriately.
   3510  1.1.1.20  mrg 	* testsuite/25_algorithms/search_n/97828.cc: New test.
   3511  1.1.1.18  mrg 
   3512  1.1.1.20  mrg 2020-11-16  Jonathan Wakely  <jwakely (a] redhat.com>
   3513  1.1.1.18  mrg 
   3514  1.1.1.20  mrg 	Backported from master:
   3515  1.1.1.20  mrg 	2020-11-13  Jonathan Wakely  <jwakely (a] redhat.com>
   3516  1.1.1.18  mrg 
   3517  1.1.1.20  mrg 	PR libstdc++/93456
   3518  1.1.1.20  mrg 	* src/c++11/futex.cc (relative_timespec): Remove redundant check
   3519  1.1.1.20  mrg 	negative values.
   3520  1.1.1.20  mrg 	* testsuite/30_threads/future/members/93456.cc: New.
   3521  1.1.1.19  mrg 
   3522  1.1.1.20  mrg 2020-11-16  Jonathan Wakely  <jwakely (a] redhat.com>
   3523  1.1.1.19  mrg 
   3524  1.1.1.20  mrg 	Backported from master:
   3525  1.1.1.20  mrg 	2020-11-16  Jonathan Wakely  <jwakely (a] redhat.com>
   3526  1.1.1.18  mrg 
   3527  1.1.1.20  mrg 	* src/c++11/futex.cc (relative_timespec): New function to
   3528  1.1.1.20  mrg 	create relative time from two absolute times.
   3529  1.1.1.20  mrg 	(__atomic_futex_unsigned_base::_M_futex_wait_until): Use
   3530  1.1.1.20  mrg 	relative_timespec.
   3531  1.1.1.18  mrg 
   3532  1.1.1.20  mrg 2020-11-16  Jonathan Wakely  <jwakely (a] redhat.com>
   3533  1.1.1.18  mrg 
   3534  1.1.1.20  mrg 	Backported from master:
   3535  1.1.1.20  mrg 	2020-11-12  Jonathan Wakely  <jwakely (a] redhat.com>
   3536  1.1.1.19  mrg 
   3537  1.1.1.20  mrg 	* include/std/future (future::wait_for): Do not wait for
   3538  1.1.1.20  mrg 	durations less than or equal to zero.
   3539  1.1.1.20  mrg 	* testsuite/30_threads/future/members/poll.cc: New test.
   3540  1.1.1.18  mrg 
   3541  1.1.1.20  mrg 2020-11-13  Jonathan Wakely  <jwakely (a] redhat.com>
   3542  1.1.1.18  mrg 
   3543  1.1.1.20  mrg 	Backported from master:
   3544  1.1.1.20  mrg 	2020-11-13  Jonathan Wakely  <jwakely (a] redhat.com>
   3545  1.1.1.18  mrg 
   3546  1.1.1.20  mrg 	PR libstdc++/97798
   3547  1.1.1.20  mrg 	* include/ext/numeric_traits.h (__glibcxx_signed)
   3548  1.1.1.20  mrg 	(__glibcxx_digits, __glibcxx_min, __glibcxx_max): Remove
   3549  1.1.1.20  mrg 	macros.
   3550  1.1.1.20  mrg 	(__is_integer_nonstrict::__width): Define new constant.
   3551  1.1.1.20  mrg 	(__numeric_traits_integer): Define constants in terms of each
   3552  1.1.1.20  mrg 	other and __is_integer_nonstrict::__width, rather than the
   3553  1.1.1.20  mrg 	removed macros.
   3554  1.1.1.20  mrg 	(_GLIBCXX_INT_N_TRAITS): Macro to define explicit
   3555  1.1.1.20  mrg 	specializations for non-standard integer types.
   3556  1.1.1.18  mrg 
   3557  1.1.1.20  mrg 2020-11-13  Jonathan Wakely  <jwakely (a] redhat.com>
   3558  1.1.1.19  mrg 
   3559  1.1.1.20  mrg 	PR libstdc++/96042
   3560  1.1.1.20  mrg 	* testsuite/std/ranges/iota/96042.cc: Only assert that the
   3561  1.1.1.20  mrg 	difference type is wider than long long if __int128 is
   3562  1.1.1.20  mrg 	supported.
   3563  1.1.1.19  mrg 
   3564  1.1.1.20  mrg 2020-11-12  Jonathan Wakely  <jwakely (a] redhat.com>
   3565  1.1.1.19  mrg 
   3566  1.1.1.20  mrg 	Backported from master:
   3567  1.1.1.20  mrg 	2020-08-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3568  1.1.1.19  mrg 
   3569  1.1.1.20  mrg 	* include/bits/iterator_concepts.h [__STRICT_ANSI__]
   3570  1.1.1.20  mrg 	(incrementable_traits<__int128>): Define specialization.
   3571  1.1.1.20  mrg 	(incrementable_traits<unsigned __int128>): Likewise.
   3572  1.1.1.20  mrg 	* testsuite/std/ranges/iota/96042.cc: Test iota_view with
   3573  1.1.1.20  mrg 	__int128.
   3574  1.1.1.19  mrg 
   3575  1.1.1.20  mrg 2020-11-12  Jonathan Wakely  <jwakely (a] redhat.com>
   3576  1.1.1.19  mrg 
   3577  1.1.1.20  mrg 	Backported from master:
   3578  1.1.1.20  mrg 	2020-08-19  Jonathan Wakely  <jwakely (a] redhat.com>
   3579  1.1.1.20  mrg 		    Patrick Palka  <ppalka (a] redhat.com>
   3580  1.1.1.19  mrg 
   3581  1.1.1.20  mrg 	PR libstdc++/96042
   3582  1.1.1.20  mrg 	* include/bits/range_access.h (__detail::__to_unsigned_like):
   3583  1.1.1.20  mrg 	Do not use make_unsigned_t<T> in the return type, as it can
   3584  1.1.1.20  mrg 	result in an error before the integral<T> constraint is checked.
   3585  1.1.1.20  mrg 	[__STRICT_ANSI__]: Add overloads for 128-bit integer types.
   3586  1.1.1.20  mrg 	(__detail::__make_unsigned_like_t): Define as the return type
   3587  1.1.1.20  mrg 	of __to_unsigned_like.
   3588  1.1.1.20  mrg 	* testsuite/std/ranges/subrange/96042.cc: New test.
   3589  1.1.1.19  mrg 
   3590  1.1.1.20  mrg 2020-11-12  Jonathan Wakely  <jwakely (a] redhat.com>
   3591  1.1.1.18  mrg 
   3592  1.1.1.20  mrg 	Backported from master:
   3593  1.1.1.20  mrg 	2020-08-19  Jonathan Wakely  <jwakely (a] redhat.com>
   3594  1.1.1.19  mrg 
   3595  1.1.1.20  mrg 	PR libstdc++/96042
   3596  1.1.1.20  mrg 	* include/ext/numeric_traits.h (__is_integer_nonstrict): New
   3597  1.1.1.20  mrg 	trait which is true for 128-bit integers even in strict modes.
   3598  1.1.1.20  mrg 	(__numeric_traits_integer, __numeric_traits): Use
   3599  1.1.1.20  mrg 	__is_integer_nonstrict instead of __is_integer.
   3600  1.1.1.20  mrg 	* include/std/limits [__STRICT_ANSI__ && __SIZEOF_INT128__]
   3601  1.1.1.20  mrg 	(numeric_limits<__int128>, (numeric_limits<unsigned __int128>):
   3602  1.1.1.20  mrg 	Define.
   3603  1.1.1.20  mrg 	* testsuite/std/ranges/iota/96042.cc: New test.
   3604  1.1.1.19  mrg 
   3605  1.1.1.20  mrg 2020-11-11  Paul Scharnofske  <asynts (a] gmail.com>
   3606  1.1.1.19  mrg 
   3607  1.1.1.20  mrg 	Backported from master:
   3608  1.1.1.20  mrg 	2020-11-11  Paul Scharnofske  <asynts (a] gmail.com>
   3609  1.1.1.19  mrg 
   3610  1.1.1.20  mrg 	* include/std/thread (jthread::operator=(jthread&&)): Transfer
   3611  1.1.1.20  mrg 	any existing state to a temporary that will request a stop and
   3612  1.1.1.20  mrg 	then join.
   3613  1.1.1.20  mrg 	* testsuite/30_threads/jthread/jthread.cc: Test move assignment.
   3614  1.1.1.19  mrg 
   3615  1.1.1.20  mrg 2020-11-05  Jonathan Wakely  <jwakely (a] redhat.com>
   3616  1.1.1.20  mrg 
   3617  1.1.1.20  mrg 	Backported from master:
   3618  1.1.1.20  mrg 	2020-11-05  Jonathan Wakely  <jwakely (a] redhat.com>
   3619  1.1.1.20  mrg 
   3620  1.1.1.20  mrg 	PR libstdc++/96269
   3621  1.1.1.20  mrg 	* include/std/optional (operator==, operator!=, operator<)
   3622  1.1.1.20  mrg 	(operator>, operator<=, operator>=): Fix types used in
   3623  1.1.1.20  mrg 	SFINAE constraints.
   3624  1.1.1.20  mrg 	* testsuite/20_util/optional/relops/96269.cc: New test.
   3625  1.1.1.20  mrg 
   3626  1.1.1.20  mrg 2020-11-05  Jonathan Wakely  <jwakely (a] redhat.com>
   3627  1.1.1.20  mrg 
   3628  1.1.1.20  mrg 	Backported from master:
   3629  1.1.1.20  mrg 	2020-11-05  Jonathan Wakely  <jwakely (a] redhat.com>
   3630  1.1.1.20  mrg 
   3631  1.1.1.20  mrg 	PR libstdc++/97731
   3632  1.1.1.20  mrg 	* src/filesystem/dir.cc (recursive_directory_iterator): Call the
   3633  1.1.1.20  mrg 	right overload of _Dir::advance.
   3634  1.1.1.20  mrg 	* testsuite/experimental/filesystem/iterators/97731.cc: New test.
   3635  1.1.1.20  mrg 
   3636  1.1.1.20  mrg 2020-11-05  Jonathan Wakely  <jwakely (a] redhat.com>
   3637  1.1.1.20  mrg 
   3638  1.1.1.20  mrg 	Backported from master:
   3639  1.1.1.20  mrg 	2020-10-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3640  1.1.1.20  mrg 
   3641  1.1.1.20  mrg 	PR libstdc++/97362
   3642  1.1.1.20  mrg 	* doc/html/manual/source_code_style.html: Regenerate.
   3643  1.1.1.20  mrg 	* doc/xml/manual/appendix_contributing.xml: Add __deref to
   3644  1.1.1.20  mrg 	BADNAMES.
   3645  1.1.1.20  mrg 	* include/debug/functions.h (_Irreflexive_checker::__deref):
   3646  1.1.1.20  mrg 	Rename to __ref.
   3647  1.1.1.20  mrg 	* testsuite/17_intro/badnames.cc: Check __deref.
   3648  1.1.1.20  mrg 
   3649  1.1.1.20  mrg 2020-11-04  Jonathan Wakely  <jwakely (a] redhat.com>
   3650  1.1.1.20  mrg 
   3651  1.1.1.20  mrg 	Backported from master:
   3652  1.1.1.20  mrg 	2020-11-04  Jonathan Wakely  <jwakely (a] redhat.com>
   3653  1.1.1.20  mrg 
   3654  1.1.1.20  mrg 	PR libstdc++/92285
   3655  1.1.1.20  mrg 	* doc/xml/manual/evolution.xml: Document change to base class.
   3656  1.1.1.20  mrg 	* doc/html/manual/api.html: Regenerate.
   3657  1.1.1.20  mrg 
   3658  1.1.1.20  mrg 2020-11-04  Jonathan Wakely  <jwakely (a] redhat.com>
   3659  1.1.1.20  mrg 
   3660  1.1.1.20  mrg 	* doc/xml/manual/evolution.xml: Document new C++20 headers.
   3661  1.1.1.20  mrg 	* doc/html/*: Regenerate.
   3662  1.1.1.20  mrg 
   3663  1.1.1.20  mrg 2020-11-04  Jonathan Wakely  <jwakely (a] redhat.com>
   3664  1.1.1.20  mrg 
   3665  1.1.1.20  mrg 	Backported from master:
   3666  1.1.1.20  mrg 	2020-06-01  Jonathan Wakely  <jwakely (a] redhat.com>
   3667  1.1.1.20  mrg 
   3668  1.1.1.20  mrg 	* doc/xml/manual/evolution.xml: Document deprecation of
   3669  1.1.1.20  mrg 	__is_nullptr_t and removal of std::allocator members.
   3670  1.1.1.20  mrg 	* doc/html/manual/api.html: Regenerate.
   3671  1.1.1.20  mrg 
   3672  1.1.1.20  mrg 2020-11-04  Jonathan Wakely  <jwakely (a] redhat.com>
   3673  1.1.1.20  mrg 
   3674  1.1.1.20  mrg 	Backported from master:
   3675  1.1.1.20  mrg 	2020-06-01  Jonathan Wakely  <jwakely (a] redhat.com>
   3676  1.1.1.20  mrg 
   3677  1.1.1.20  mrg 	* doc/xml/manual/containers.xml: Replace <xref> with <link>.
   3678  1.1.1.20  mrg 	* doc/xml/manual/evolution.xml: Likewise.
   3679  1.1.1.20  mrg 	* doc/html/manual/api.html: Regenerate.
   3680  1.1.1.20  mrg 	* doc/html/manual/containers.html: Regenerate.
   3681  1.1.1.20  mrg 
   3682  1.1.1.20  mrg 2020-10-29  Patrick Palka  <ppalka (a] redhat.com>
   3683  1.1.1.20  mrg 
   3684  1.1.1.20  mrg 	Backported from master:
   3685  1.1.1.20  mrg 	2020-10-29  Patrick Palka  <ppalka (a] redhat.com>
   3686  1.1.1.20  mrg 
   3687  1.1.1.20  mrg 	* testsuite/25_algorithms/lexicographical_compare/constrained.cc:
   3688  1.1.1.20  mrg 	(test03): Fix initializing the vector vy with the array y of size 4.
   3689  1.1.1.20  mrg 
   3690  1.1.1.20  mrg 2020-10-28  Patrick Palka  <ppalka (a] redhat.com>
   3691  1.1.1.20  mrg 
   3692  1.1.1.20  mrg 	Backported from master:
   3693  1.1.1.20  mrg 	2020-10-23  Patrick Palka  <ppalka (a] redhat.com>
   3694  1.1.1.20  mrg 
   3695  1.1.1.20  mrg 	* include/std/ranges (single_view::single_view): Mark the
   3696  1.1.1.20  mrg 	in place constructor explicit as per LWG 3428.
   3697  1.1.1.20  mrg 	(take_view): Remove the constraint on the deduction guide's
   3698  1.1.1.20  mrg 	template parameter as per LWG 3447.
   3699  1.1.1.20  mrg 
   3700  1.1.1.20  mrg 2020-10-21  Patrick Palka  <ppalka (a] redhat.com>
   3701  1.1.1.20  mrg 
   3702  1.1.1.20  mrg 	Backported from master:
   3703  1.1.1.20  mrg 	2020-09-22  Patrick Palka  <ppalka (a] redhat.com>
   3704  1.1.1.20  mrg 
   3705  1.1.1.20  mrg 	* include/std/span (span::front): Remove static_assert.
   3706  1.1.1.20  mrg 	(span::back): Likewise.
   3707  1.1.1.20  mrg 	(span::operator[]): Likewise.
   3708  1.1.1.20  mrg 	* testsuite/23_containers/span/back_neg.cc: Rewrite to verify
   3709  1.1.1.20  mrg 	that we check the preconditions of back() only when it's called.
   3710  1.1.1.20  mrg 	* testsuite/23_containers/span/front_neg.cc: Likewise for
   3711  1.1.1.20  mrg 	front().
   3712  1.1.1.20  mrg 	* testsuite/23_containers/span/index_op_neg.cc: Likewise for
   3713  1.1.1.20  mrg 	operator[].
   3714  1.1.1.20  mrg 
   3715  1.1.1.20  mrg 2020-10-21  Patrick Palka  <ppalka (a] redhat.com>
   3716  1.1.1.20  mrg 
   3717  1.1.1.20  mrg 	Backported from master:
   3718  1.1.1.20  mrg 	2020-10-12  Patrick Palka  <ppalka (a] redhat.com>
   3719  1.1.1.20  mrg 
   3720  1.1.1.20  mrg 	* include/std/ranges (take_while_view::begin): Constrain the
   3721  1.1.1.20  mrg 	const overload further as per LWG 3450.
   3722  1.1.1.20  mrg 	(take_while_view::end): Likewise.
   3723  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/take_while.cc: Add test for LWG
   3724  1.1.1.20  mrg 	3450.
   3725  1.1.1.20  mrg 
   3726  1.1.1.20  mrg 2020-10-21  Patrick Palka  <ppalka (a] redhat.com>
   3727  1.1.1.20  mrg 
   3728  1.1.1.20  mrg 	Backported from master:
   3729  1.1.1.20  mrg 	2020-09-22  Patrick Palka  <ppalka (a] redhat.com>
   3730  1.1.1.20  mrg 
   3731  1.1.1.20  mrg 	* include/bits/stl_algo.h (__sample): Exit early when the
   3732  1.1.1.20  mrg 	input range is empty.
   3733  1.1.1.20  mrg 	* testsuite/25_algorithms/sample/3.cc: New test.
   3734  1.1.1.20  mrg 
   3735  1.1.1.20  mrg 2020-10-21  Patrick Palka  <ppalka (a] redhat.com>
   3736  1.1.1.20  mrg 
   3737  1.1.1.20  mrg 	Backported from master:
   3738  1.1.1.20  mrg 	2020-09-22  Patrick Palka  <ppalka (a] redhat.com>
   3739  1.1.1.20  mrg 
   3740  1.1.1.20  mrg 	* include/bits/stl_algo.h (for_each_n): Mark constexpr for C++20.
   3741  1.1.1.20  mrg 	(search): Likewise for the overload that takes a searcher.
   3742  1.1.1.20  mrg 	* testsuite/25_algorithms/for_each/constexpr.cc: Test constexpr
   3743  1.1.1.20  mrg 	std::for_each_n.
   3744  1.1.1.20  mrg 	* testsuite/25_algorithms/search/constexpr.cc: Test constexpr
   3745  1.1.1.20  mrg 	std::search overload that takes a searcher.
   3746  1.1.1.20  mrg 
   3747  1.1.1.20  mrg 2020-10-21  Patrick Palka  <ppalka (a] redhat.com>
   3748  1.1.1.20  mrg 
   3749  1.1.1.20  mrg 	Backported from master:
   3750  1.1.1.20  mrg 	2020-08-27  Patrick Palka  <ppalka (a] redhat.com>
   3751  1.1.1.20  mrg 
   3752  1.1.1.20  mrg 	PR libstdc++/95322
   3753  1.1.1.20  mrg 	* include/std/ranges (transform_view::sentinel::__distance_from):
   3754  1.1.1.20  mrg 	Give this a deduced return type.
   3755  1.1.1.20  mrg 	(transform_view::sentinel::operator-): Adjust the return type so
   3756  1.1.1.20  mrg 	that it's based on the constness of the iterator rather than
   3757  1.1.1.20  mrg 	that of the sentinel.
   3758  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/95322.cc: Refer to LWG 3488.
   3759  1.1.1.20  mrg 
   3760  1.1.1.20  mrg 2020-10-21  Patrick Palka  <ppalka (a] redhat.com>
   3761  1.1.1.20  mrg 
   3762  1.1.1.20  mrg 	Backported from master:
   3763  1.1.1.20  mrg 	2020-08-27  Patrick Palka  <ppalka (a] redhat.com>
   3764  1.1.1.20  mrg 
   3765  1.1.1.20  mrg 	* include/std/ranges (elements_view::begin): Adjust constraints.
   3766  1.1.1.20  mrg 	(elements_view::end): Likewise.
   3767  1.1.1.20  mrg 	(elements_view::_Sentinel::operator==): Templatize to take both
   3768  1.1.1.20  mrg 	_Iterator<true> and _Iterator<false>.
   3769  1.1.1.20  mrg 	(elements_view::_Sentinel::operator-): Likewise.
   3770  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/elements.cc: Add testcase for
   3771  1.1.1.20  mrg 	the example from P1994R1.
   3772  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/lwg3406.cc: New test.
   3773  1.1.1.20  mrg 
   3774  1.1.1.20  mrg 2020-10-21  Patrick Palka  <ppalka (a] redhat.com>
   3775  1.1.1.20  mrg 
   3776  1.1.1.20  mrg 	Backported from master:
   3777  1.1.1.20  mrg 	2020-08-27  Patrick Palka  <ppalka (a] redhat.com>
   3778  1.1.1.20  mrg 
   3779  1.1.1.20  mrg 	* include/std/ranges (elements_view::end): Replace these two
   3780  1.1.1.20  mrg 	overloads with four new overloads.
   3781  1.1.1.20  mrg 	(elements_view::_Iterator::operator==): Remove.
   3782  1.1.1.20  mrg 	(elements_view::_Iterator::operator-): Likewise.
   3783  1.1.1.20  mrg 	(elements_view::_Sentinel): Define.
   3784  1.1.1.20  mrg 
   3785  1.1.1.20  mrg 2020-10-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3786  1.1.1.20  mrg 
   3787  1.1.1.20  mrg 	Backported from master:
   3788  1.1.1.20  mrg 	2020-08-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3789  1.1.1.20  mrg 
   3790  1.1.1.20  mrg 	* python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
   3791  1.1.1.20  mrg 	Use gdb.Type.strip_typedefs().
   3792  1.1.1.20  mrg 	* testsuite/libstdc++-prettyprinters/compat.cc: Use a typedef in
   3793  1.1.1.20  mrg 	the emulated old type.
   3794  1.1.1.20  mrg 
   3795  1.1.1.20  mrg 2020-10-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3796  1.1.1.20  mrg 
   3797  1.1.1.20  mrg 	Backported from master:
   3798  1.1.1.20  mrg 	2020-10-14  Jonathan Wakely  <jwakely (a] redhat.com>
   3799  1.1.1.20  mrg 
   3800  1.1.1.20  mrg 	* include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
   3801  1.1.1.20  mrg 	(basic_string(const _CharT*, const _Alloc&)): Constrain to
   3802  1.1.1.20  mrg 	require an allocator-like type to fix CTAD ambiguity (LWG 3706).
   3803  1.1.1.20  mrg 	Define inline.
   3804  1.1.1.20  mrg 	* include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
   3805  1.1.1.20  mrg 	(basic_string(const _CharT*, const _Alloc&)): Remove non-inline
   3806  1.1.1.20  mrg 	definition.
   3807  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/cons/char/deduction.cc:
   3808  1.1.1.20  mrg 	Remove dg-skip-if.
   3809  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
   3810  1.1.1.20  mrg 	Likewise.
   3811  1.1.1.20  mrg 
   3812  1.1.1.20  mrg 2020-10-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3813  1.1.1.20  mrg 
   3814  1.1.1.20  mrg 	Backported from master:
   3815  1.1.1.20  mrg 	2020-10-14  Jonathan Wakely  <jwakely (a] redhat.com>
   3816  1.1.1.20  mrg 
   3817  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/allocator/char/minimal.cc:
   3818  1.1.1.20  mrg 	Do not require cxx11-abi effective target.
   3819  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/allocator/wchar_t/minimal.cc:
   3820  1.1.1.20  mrg 	Likewise.
   3821  1.1.1.20  mrg 	* testsuite/27_io/basic_fstream/cons/base.cc: Likewise.
   3822  1.1.1.20  mrg 
   3823  1.1.1.20  mrg 2020-10-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3824  1.1.1.20  mrg 
   3825  1.1.1.20  mrg 	Backported from master:
   3826  1.1.1.20  mrg 	2020-10-08  Jonathan Wakely  <jwakely (a] redhat.com>
   3827  1.1.1.20  mrg 
   3828  1.1.1.20  mrg 	* include/bits/ios_base.h (ios_base::failure): Add constructors
   3829  1.1.1.20  mrg 	takeing error_code argument. Add code() member function.
   3830  1.1.1.20  mrg 	* testsuite/27_io/ios_base/failure/cxx11.cc: Allow test to
   3831  1.1.1.20  mrg 	run for the old ABI but do not check for derivation from
   3832  1.1.1.20  mrg 	std::system_error.
   3833  1.1.1.20  mrg 	* testsuite/27_io/ios_base/failure/error_code.cc: New test.
   3834  1.1.1.20  mrg 
   3835  1.1.1.20  mrg 2020-10-20  Nuno Lopes  <nuno.lopes (a] ist.utl.pt>
   3836  1.1.1.20  mrg 
   3837  1.1.1.20  mrg 	Backported from master:
   3838  1.1.1.20  mrg 	2020-10-13  Nuno Lopes  <nuno.lopes (a] ist.utl.pt>
   3839  1.1.1.20  mrg 
   3840  1.1.1.20  mrg 	* include/bits/stl_algo.h (any_of): Fix incorrect description
   3841  1.1.1.20  mrg 	in comment.
   3842  1.1.1.20  mrg 
   3843  1.1.1.20  mrg 2020-10-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3844  1.1.1.20  mrg 
   3845  1.1.1.20  mrg 	Backported from master:
   3846  1.1.1.20  mrg 	2020-10-12  Jonathan Wakely  <jwakely (a] redhat.com>
   3847  1.1.1.20  mrg 
   3848  1.1.1.20  mrg 	* include/bits/stl_algobase.h (copy, move, copy_backward)
   3849  1.1.1.20  mrg 	(move_backward): Fix documentation for returned iterator.
   3850  1.1.1.20  mrg 
   3851  1.1.1.20  mrg 2020-10-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3852  1.1.1.20  mrg 
   3853  1.1.1.20  mrg 	Backported from master:
   3854  1.1.1.20  mrg 	2020-09-24  Jonathan Wakely  <jwakely (a] redhat.com>
   3855  1.1.1.20  mrg 
   3856  1.1.1.20  mrg 	* doc/xml/manual/configure.xml: Correct name of option.
   3857  1.1.1.20  mrg 	* doc/html/*: Regenerate.
   3858  1.1.1.20  mrg 
   3859  1.1.1.20  mrg 2020-10-19  Jonathan Wakely  <jwakely (a] redhat.com>
   3860  1.1.1.20  mrg 
   3861  1.1.1.20  mrg 	Backported from master:
   3862  1.1.1.20  mrg 	2020-09-21  Jonathan Wakely  <jwakely (a] redhat.com>
   3863  1.1.1.20  mrg 
   3864  1.1.1.20  mrg 	PR libstdc++/97132
   3865  1.1.1.20  mrg 	* include/std/memory (assume_aligned): Do not use
   3866  1.1.1.20  mrg 	__builtin_assume_aligned during constant evaluation.
   3867  1.1.1.20  mrg 	* testsuite/20_util/assume_aligned/1.cc: Improve test.
   3868  1.1.1.20  mrg 	* testsuite/20_util/assume_aligned/97132.cc: New test.
   3869  1.1.1.20  mrg 
   3870  1.1.1.20  mrg 2020-10-15  Jonathan Wakely  <jwakely (a] redhat.com>
   3871  1.1.1.20  mrg 
   3872  1.1.1.20  mrg 	Backported from master:
   3873  1.1.1.20  mrg 	2020-10-15  Jonathan Wakely  <jwakely (a] redhat.com>
   3874  1.1.1.20  mrg 
   3875  1.1.1.20  mrg 	* include/std/concepts: Fix typos in copyright notice.
   3876  1.1.1.20  mrg 	* include/std/ranges: Likewise.
   3877  1.1.1.20  mrg 
   3878  1.1.1.20  mrg 2020-10-15  Jonathan Wakely  <jwakely (a] redhat.com>
   3879  1.1.1.20  mrg 
   3880  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2020.xml: Remove red background for
   3881  1.1.1.20  mrg 	completed feature.
   3882  1.1.1.20  mrg 	* doc/html/manual/status.html: Regenerate.
   3883  1.1.1.20  mrg 
   3884  1.1.1.20  mrg 2020-10-13  Patrick Palka  <ppalka (a] redhat.com>
   3885  1.1.1.20  mrg 
   3886  1.1.1.20  mrg 	Backported from master:
   3887  1.1.1.20  mrg 	2020-10-08  Patrick Palka  <ppalka (a] redhat.com>
   3888  1.1.1.20  mrg 
   3889  1.1.1.20  mrg 	PR libstdc++/95788
   3890  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h:
   3891  1.1.1.20  mrg 	(__construct_at_fn::operator()): Rewrite in terms of
   3892  1.1.1.20  mrg 	std::construct_at.  Declare it conditionally noexcept.  Qualify
   3893  1.1.1.20  mrg 	calls to declval in its requires-clause.
   3894  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
   3895  1.1.1.20  mrg 	New test.
   3896  1.1.1.20  mrg 
   3897  1.1.1.20  mrg 2020-10-08  Jonathan Wakely  <jwakely (a] redhat.com>
   3898  1.1.1.20  mrg 
   3899  1.1.1.20  mrg 	Backported from master:
   3900  1.1.1.20  mrg 	2020-10-07  Jonathan Wakely  <jwakely (a] redhat.com>
   3901  1.1.1.20  mrg 
   3902  1.1.1.20  mrg 	* include/bits/random.h (seed_seq(initializer_list<T>)): Rename
   3903  1.1.1.20  mrg 	parameter to use reserved name.
   3904  1.1.1.20  mrg 	* include/bits/ranges_algo.h (shift_left, shift_right): Rename
   3905  1.1.1.20  mrg 	template parameters to use reserved name.
   3906  1.1.1.20  mrg 	* testsuite/17_intro/names.cc: Check "il". Do not check "d" and
   3907  1.1.1.20  mrg 	"y" in C++20 mode.
   3908  1.1.1.20  mrg 
   3909  1.1.1.20  mrg 2020-10-06  Patrick Palka  <ppalka (a] redhat.com>
   3910  1.1.1.20  mrg 
   3911  1.1.1.20  mrg 	Backported from master:
   3912  1.1.1.20  mrg 	2020-10-02  Patrick Palka  <ppalka (a] redhat.com>
   3913  1.1.1.20  mrg 
   3914  1.1.1.20  mrg 	* include/bits/stl_iterator.h (reverse_iterator::iter_move):
   3915  1.1.1.20  mrg 	Define for C++20 as per P0896.
   3916  1.1.1.20  mrg 	(reverse_iterator::iter_swap): Likewise.
   3917  1.1.1.20  mrg 	(move_iterator::operator*): Apply P0896 changes for C++20.
   3918  1.1.1.20  mrg 	(move_iterator::operator[]): Likewise.
   3919  1.1.1.20  mrg 	* testsuite/24_iterators/reverse_iterator/cust.cc: New test.
   3920  1.1.1.20  mrg 
   3921  1.1.1.20  mrg 2020-09-22  Jonathan Wakely  <jwakely (a] redhat.com>
   3922  1.1.1.20  mrg 
   3923  1.1.1.20  mrg 	Backported from master:
   3924  1.1.1.20  mrg 	2020-09-22  Jonathan Wakely  <jwakely (a] redhat.com>
   3925  1.1.1.20  mrg 
   3926  1.1.1.20  mrg 	PR libstdc++/97167
   3927  1.1.1.20  mrg 	* src/c++17/fs_path.cc (path::_Parser::root_path()): Check
   3928  1.1.1.20  mrg 	for empty string before inspecting the first character.
   3929  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/append/source.cc: Append
   3930  1.1.1.20  mrg 	empty string_view to path.
   3931  1.1.1.20  mrg 
   3932  1.1.1.20  mrg 2020-09-22  Jonathan Wakely  <jwakely (a] redhat.com>
   3933  1.1.1.20  mrg 
   3934  1.1.1.20  mrg 	Backported from master:
   3935  1.1.1.20  mrg 	2020-09-22  Jonathan Wakely  <jwakely (a] redhat.com>
   3936  1.1.1.20  mrg 
   3937  1.1.1.20  mrg 	PR libstdc++/96803
   3938  1.1.1.20  mrg 	* include/std/tuple
   3939  1.1.1.20  mrg 	(_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
   3940  1.1.1.20  mrg 	Use correct value category in __use_alloc call.
   3941  1.1.1.20  mrg 	* testsuite/20_util/tuple/cons/96803.cc: Check with constructors
   3942  1.1.1.20  mrg 	that require correct value category to be used.
   3943  1.1.1.20  mrg 
   3944  1.1.1.20  mrg 2020-09-22  Jonathan Wakely  <jwakely (a] redhat.com>
   3945  1.1.1.20  mrg 
   3946  1.1.1.20  mrg 	Backported from master:
   3947  1.1.1.20  mrg 	2020-08-26  Jonathan Wakely  <jwakely (a] redhat.com>
   3948  1.1.1.20  mrg 
   3949  1.1.1.20  mrg 	PR libstdc++/96803
   3950  1.1.1.20  mrg 	* include/std/tuple
   3951  1.1.1.20  mrg 	(_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
   3952  1.1.1.20  mrg 	Replace parameter pack with a type parameter and a pack and pass
   3953  1.1.1.20  mrg 	the first type to __use_alloc.
   3954  1.1.1.20  mrg 	* testsuite/20_util/tuple/cons/96803.cc: New test.
   3955  1.1.1.20  mrg 
   3956  1.1.1.20  mrg 2020-09-21  Jonathan Wakely  <jwakely (a] redhat.com>
   3957  1.1.1.20  mrg 
   3958  1.1.1.20  mrg 	Backported from master:
   3959  1.1.1.20  mrg 	2020-08-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3960  1.1.1.20  mrg 
   3961  1.1.1.20  mrg 	PR libstdc++/94681
   3962  1.1.1.20  mrg 	* src/c++17/fs_ops.cc (read_symlink): Use posix::lstat instead
   3963  1.1.1.20  mrg 	of calling ::lstat directly.
   3964  1.1.1.20  mrg 	* src/filesystem/ops.cc (read_symlink): Likewise.
   3965  1.1.1.20  mrg 
   3966  1.1.1.20  mrg 2020-09-21  Jonathan Wakely  <jwakely (a] redhat.com>
   3967  1.1.1.20  mrg 
   3968  1.1.1.20  mrg 	Backported from master:
   3969  1.1.1.20  mrg 	2020-08-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3970  1.1.1.20  mrg 
   3971  1.1.1.20  mrg 	PR libstdc++/94681
   3972  1.1.1.20  mrg 	* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Do not depend on
   3973  1.1.1.20  mrg 	$enable_libstdcxx_filesystem_ts.
   3974  1.1.1.20  mrg 	* configure: Regenerate.
   3975  1.1.1.20  mrg 
   3976  1.1.1.20  mrg 2020-09-21  Jonathan Wakely  <jwakely (a] redhat.com>
   3977  1.1.1.20  mrg 
   3978  1.1.1.20  mrg 	Backported from master:
   3979  1.1.1.20  mrg 	2020-09-20  Jonathan Wakely  <jwakely (a] redhat.com>
   3980  1.1.1.20  mrg 
   3981  1.1.1.20  mrg 	PR libstdc++/97101
   3982  1.1.1.20  mrg 	* include/std/functional (bind_front): Fix order of parameters
   3983  1.1.1.20  mrg 	in is_nothrow_constructible_v specialization.
   3984  1.1.1.20  mrg 	* testsuite/20_util/function_objects/bind_front/97101.cc: New test.
   3985  1.1.1.20  mrg 
   3986  1.1.1.20  mrg 2020-09-21  Jonathan Wakely  <jwakely (a] redhat.com>
   3987  1.1.1.20  mrg 
   3988  1.1.1.20  mrg 	Backported from master:
   3989  1.1.1.20  mrg 	2020-09-10  Jonathan Wakely  <jwakely (a] redhat.com>
   3990  1.1.1.20  mrg 
   3991  1.1.1.20  mrg 	PR libstdc++/94160
   3992  1.1.1.20  mrg 	* src/c++17/memory_resource.cc (munge_options): Round
   3993  1.1.1.20  mrg 	max_blocks_per_chunk to a multiple of four.
   3994  1.1.1.20  mrg 	(__pool_resource::_M_alloc_pools()): Simplify slightly.
   3995  1.1.1.20  mrg 	* testsuite/20_util/unsynchronized_pool_resource/allocate.cc:
   3996  1.1.1.20  mrg 	Check that valid pointers are returned when small values are
   3997  1.1.1.20  mrg 	used for max_blocks_per_chunk.
   3998  1.1.1.20  mrg 
   3999  1.1.1.20  mrg 2020-09-03  Jonathan Wakely  <jwakely (a] redhat.com>
   4000  1.1.1.20  mrg 
   4001  1.1.1.20  mrg 	Backported from master:
   4002  1.1.1.20  mrg 	2020-07-07  Jonathan Wakely  <jwakely (a] redhat.com>
   4003  1.1.1.20  mrg 
   4004  1.1.1.20  mrg 	* include/Makefile.am: Remove bits/int_limits.h.
   4005  1.1.1.20  mrg 	* include/Makefile.in: Regenerate.
   4006  1.1.1.20  mrg 	* include/bits/int_limits.h: Removed.
   4007  1.1.1.20  mrg 	* include/bits/parse_numbers.h (_Select_int_base): Replace
   4008  1.1.1.20  mrg 	__int_limits with __int_traits.
   4009  1.1.1.20  mrg 	* include/bits/range_access.h (_SSize::operator()): Likewise.
   4010  1.1.1.20  mrg 	* include/ext/numeric_traits.h (__numeric_traits_integer): Add
   4011  1.1.1.20  mrg 	static assertion.
   4012  1.1.1.20  mrg 	(__int_traits): New alias template.
   4013  1.1.1.20  mrg 	* include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
   4014  1.1.1.20  mrg 	(__countr_zero, __countr_one, __popcount, __bit_ceil)
   4015  1.1.1.20  mrg 	(__bit_floor, __bit_width) Replace __int_limits with
   4016  1.1.1.20  mrg 	__int_traits.
   4017  1.1.1.20  mrg 	* include/std/charconv (__to_chars_8, __from_chars_binary)
   4018  1.1.1.20  mrg 	(__from_chars_alpha_to_num, from_chars): Likewise.
   4019  1.1.1.20  mrg 	* include/std/memory_resource (polymorphic_allocator::allocate)
   4020  1.1.1.20  mrg 	(polymorphic_allocator::allocate_object): Likewise.
   4021  1.1.1.20  mrg 	* include/std/string_view (basic_string_view::_S_compare):
   4022  1.1.1.20  mrg 	Likewise.
   4023  1.1.1.20  mrg 	* include/std/utility (cmp_equal, cmp_less, in_range): Likewise.
   4024  1.1.1.20  mrg 
   4025  1.1.1.20  mrg 2020-09-02  Jonathan Wakely  <jwakely (a] redhat.com>
   4026  1.1.1.20  mrg 
   4027  1.1.1.20  mrg 	Backported from master:
   4028  1.1.1.20  mrg 	2020-08-28  Jonathan Wakely  <jwakely (a] redhat.com>
   4029  1.1.1.20  mrg 
   4030  1.1.1.20  mrg 	PR libstdc++/92978
   4031  1.1.1.20  mrg 	* include/std/numeric (__abs_integral): Replace with ...
   4032  1.1.1.20  mrg 	(__detail::__absu): New function template that returns an
   4033  1.1.1.20  mrg 	unsigned type, guaranteeing it can represent the most
   4034  1.1.1.20  mrg 	negative signed value.
   4035  1.1.1.20  mrg 	(__detail::__gcd, __detail::__lcm): Require arguments to
   4036  1.1.1.20  mrg 	be unsigned and therefore already non-negative.
   4037  1.1.1.20  mrg 	(gcd, lcm): Convert arguments to absolute value as unsigned
   4038  1.1.1.20  mrg 	type before calling __detail::__gcd or __detail::__lcm.
   4039  1.1.1.20  mrg 	* include/experimental/numeric (gcd, lcm): Likewise.
   4040  1.1.1.20  mrg 	* testsuite/26_numerics/gcd/gcd_neg.cc: Adjust expected
   4041  1.1.1.20  mrg 	errors.
   4042  1.1.1.20  mrg 	* testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
   4043  1.1.1.20  mrg 	* testsuite/26_numerics/gcd/92978.cc: New test.
   4044  1.1.1.20  mrg 	* testsuite/26_numerics/lcm/92978.cc: New test.
   4045  1.1.1.20  mrg 	* testsuite/experimental/numeric/92978.cc: New test.
   4046  1.1.1.20  mrg 
   4047  1.1.1.20  mrg 2020-09-02  Jonathan Wakely  <jwakely (a] redhat.com>
   4048  1.1.1.20  mrg 
   4049  1.1.1.20  mrg 	Backported from master:
   4050  1.1.1.20  mrg 	2020-09-02  Jonathan Wakely  <jwakely (a] redhat.com>
   4051  1.1.1.20  mrg 
   4052  1.1.1.20  mrg 	PR libstdc++/96851
   4053  1.1.1.20  mrg 	* include/bits/cpp_type_traits.h (__is_memcmp_ordered):
   4054  1.1.1.20  mrg 	New trait that says if memcmp can be used for ordering.
   4055  1.1.1.20  mrg 	(__is_memcmp_ordered_with): Likewise, for two types.
   4056  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__lexicographical_compare_fn):
   4057  1.1.1.20  mrg 	Use new traits instead of __is_byte and __numeric_traits.
   4058  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__lexicographical_compare_aux1)
   4059  1.1.1.20  mrg 	(__is_byte_iter): Likewise.
   4060  1.1.1.20  mrg 	* include/std/array (operator<=>): Likewise. Only use memcmp
   4061  1.1.1.20  mrg 	when std::is_constant_evaluated() is false.
   4062  1.1.1.20  mrg 	* testsuite/23_containers/array/comparison_operators/96851.cc:
   4063  1.1.1.20  mrg 	New test.
   4064  1.1.1.20  mrg 	* testsuite/23_containers/array/tuple_interface/get_neg.cc:
   4065  1.1.1.20  mrg 	Adjust dg-error line numbers.
   4066  1.1.1.20  mrg 
   4067  1.1.1.20  mrg 2020-09-02  Jonathan Wakely  <jwakely (a] redhat.com>
   4068  1.1.1.20  mrg 
   4069  1.1.1.20  mrg 	* include/bits/stl_iterator.h (counted_iterator::operator++(int)):
   4070  1.1.1.20  mrg 	Use __throw_exception_again macro.
   4071  1.1.1.20  mrg 
   4072  1.1.1.20  mrg 2020-08-26  Jonathan Wakely  <jwakely (a] redhat.com>
   4073  1.1.1.20  mrg 
   4074  1.1.1.20  mrg 	Backported from master:
   4075  1.1.1.20  mrg 	2020-08-26  Jonathan Wakely  <jwakely (a] redhat.com>
   4076  1.1.1.20  mrg 
   4077  1.1.1.20  mrg 	PR libstdc++/71960
   4078  1.1.1.20  mrg 	* include/experimental/string_view (basic_string_view):
   4079  1.1.1.20  mrg 	Enable debug assertions.
   4080  1.1.1.20  mrg 	* include/std/string_view (basic_string_view):
   4081  1.1.1.20  mrg 	Likewise.
   4082  1.1.1.20  mrg 
   4083  1.1.1.20  mrg 2020-08-26  Jonathan Wakely  <jwakely (a] redhat.com>
   4084  1.1.1.20  mrg 
   4085  1.1.1.20  mrg 	Backported from master:
   4086  1.1.1.20  mrg 	2020-08-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4087  1.1.1.20  mrg 
   4088  1.1.1.20  mrg 	PR libstdc++/96766
   4089  1.1.1.20  mrg 	* include/std/variant (_Variant_storage): Replace implicit
   4090  1.1.1.20  mrg 	conversions from size_t to __index_type with explicit casts.
   4091  1.1.1.20  mrg 
   4092  1.1.1.20  mrg 2020-08-21  Jonathan Wakely  <jwakely (a] redhat.com>
   4093  1.1.1.20  mrg 
   4094  1.1.1.20  mrg 	Backported from master:
   4095  1.1.1.20  mrg 	2020-08-21  Jonathan Wakely  <jwakely (a] redhat.com>
   4096  1.1.1.20  mrg 
   4097  1.1.1.20  mrg 	PR libstdc++/96718
   4098  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test-2.cc: Require
   4099  1.1.1.20  mrg 	tbb-backend effective target.
   4100  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise.
   4101  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise.
   4102  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test.cc: Likewise.
   4103  1.1.1.20  mrg 
   4104  1.1.1.20  mrg 2020-08-19  Jonathan Wakely  <jwakely (a] redhat.com>
   4105  1.1.1.20  mrg 
   4106  1.1.1.20  mrg 	Backported from master:
   4107  1.1.1.20  mrg 	2020-08-19  Jonathan Wakely  <jwakely (a] redhat.com>
   4108  1.1.1.20  mrg 
   4109  1.1.1.20  mrg 	* include/bits/c++config (_GLIBCXX_DEPRECATED_SUGGEST): New
   4110  1.1.1.20  mrg 	macro for "use 'foo' instead" message in deprecated warnings.
   4111  1.1.1.20  mrg 	* include/bits/ios_base.h (io_state, open_mode, seek_dir)
   4112  1.1.1.20  mrg 	(streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST.
   4113  1.1.1.20  mrg 	* include/std/streambuf (stossc): Replace C++11 attribute
   4114  1.1.1.20  mrg 	with _GLIBCXX_DEPRECATED_SUGGEST.
   4115  1.1.1.20  mrg 	* include/std/type_traits (__is_nullptr_t): Use
   4116  1.1.1.20  mrg 	_GLIBCXX_DEPRECATED_SUGGEST instead of _GLIBCXX_DEPRECATED.
   4117  1.1.1.20  mrg 	* testsuite/27_io/types/1.cc: Check for deprecated warnings.
   4118  1.1.1.20  mrg 	Also check for io_state, open_mode and seek_dir typedefs.
   4119  1.1.1.20  mrg 
   4120  1.1.1.20  mrg 2020-08-11  Jonathan Wakely  <jwakely (a] redhat.com>
   4121  1.1.1.20  mrg 
   4122  1.1.1.20  mrg 	PR libstdc++/89760
   4123  1.1.1.20  mrg 	* testsuite/experimental/net/execution_context/make_service.cc:
   4124  1.1.1.20  mrg 	Add dg-require-gthreads.
   4125  1.1.1.20  mrg 	* testsuite/experimental/net/executor/1.cc: Likewise.
   4126  1.1.1.20  mrg 	* testsuite/experimental/net/headers.cc: Likewise.
   4127  1.1.1.20  mrg 	* testsuite/experimental/net/internet/address/v4/comparisons.cc:
   4128  1.1.1.20  mrg 	Likewise.
   4129  1.1.1.20  mrg 	* testsuite/experimental/net/internet/address/v4/cons.cc:
   4130  1.1.1.20  mrg 	Likewise.
   4131  1.1.1.20  mrg 	* testsuite/experimental/net/internet/address/v4/creation.cc:
   4132  1.1.1.20  mrg 	Likewise.
   4133  1.1.1.20  mrg 	* testsuite/experimental/net/internet/address/v4/members.cc:
   4134  1.1.1.20  mrg 	Likewise.
   4135  1.1.1.20  mrg 	* testsuite/experimental/net/internet/resolver/base.cc:
   4136  1.1.1.20  mrg 	Likewise.
   4137  1.1.1.20  mrg 	* testsuite/experimental/net/internet/resolver/ops/lookup.cc:
   4138  1.1.1.20  mrg 	Likewise.
   4139  1.1.1.20  mrg 	* testsuite/experimental/net/internet/resolver/ops/reverse.cc:
   4140  1.1.1.20  mrg 	Likewise.
   4141  1.1.1.20  mrg 	* testsuite/experimental/net/socket/basic_socket.cc: Likewise.
   4142  1.1.1.20  mrg 	* testsuite/experimental/net/timer/waitable/cons.cc: Likewise.
   4143  1.1.1.20  mrg 	* testsuite/experimental/net/timer/waitable/dest.cc: Likewise.
   4144  1.1.1.20  mrg 	* testsuite/experimental/net/timer/waitable/ops.cc: Likewise.
   4145  1.1.1.20  mrg 
   4146  1.1.1.20  mrg 2020-08-10  Jonathan Wakely  <jwakely (a] redhat.com>
   4147  1.1.1.20  mrg 
   4148  1.1.1.20  mrg 	Backported from master:
   4149  1.1.1.20  mrg 	2020-08-10  Jonathan Wakely  <jwakely (a] redhat.com>
   4150  1.1.1.20  mrg 
   4151  1.1.1.20  mrg 	PR libstdc++/95749
   4152  1.1.1.20  mrg 	* src/filesystem/ops-common.h [_GLIBCXX_FILESYSTEM_IS_WINDOWS]
   4153  1.1.1.20  mrg 	(stat_type): Change to __stat64.
   4154  1.1.1.20  mrg 	(stat): Use _wstat64.
   4155  1.1.1.20  mrg 
   4156  1.1.1.20  mrg 2020-08-07  Jonathan Wakely  <jwakely (a] redhat.com>
   4157  1.1.1.20  mrg 
   4158  1.1.1.20  mrg 	Backported from master:
   4159  1.1.1.20  mrg 	2020-08-07  Jonathan Wakely  <jwakely (a] redhat.com>
   4160  1.1.1.20  mrg 
   4161  1.1.1.20  mrg 	PR libstdc++/96303
   4162  1.1.1.20  mrg 	* include/debug/bitset (bitset::operator==): Call _M_base() on
   4163  1.1.1.20  mrg 	right operand.
   4164  1.1.1.20  mrg 	(bitset::operator!=): Likewise, but don't define it at all when
   4165  1.1.1.20  mrg 	default comparisons are supported by the compiler.
   4166  1.1.1.20  mrg 	* testsuite/23_containers/bitset/operations/96303.cc: New test.
   4167  1.1.1.20  mrg 
   4168  1.1.1.20  mrg 2020-08-06  Jonathan Wakely  <jwakely (a] redhat.com>
   4169  1.1.1.20  mrg 
   4170  1.1.1.20  mrg 	Backported from master:
   4171  1.1.1.20  mrg 	2020-08-06  Jonathan Wakely  <jwakely (a] redhat.com>
   4172  1.1.1.20  mrg 
   4173  1.1.1.20  mrg 	PR libstdc++/96484
   4174  1.1.1.20  mrg 	* src/c++17/fs_ops.cc (fs::read_symlink): Return an error
   4175  1.1.1.20  mrg 	immediately for non-symlinks.
   4176  1.1.1.20  mrg 	* src/filesystem/ops.cc (fs::read_symlink): Likewise.
   4177  1.1.1.20  mrg 
   4178  1.1.1.20  mrg 2020-07-23  Release Manager
   4179  1.1.1.20  mrg 
   4180  1.1.1.20  mrg 	* GCC 10.2.0 released.
   4181  1.1.1.20  mrg 
   4182  1.1.1.20  mrg 2020-07-09  Jonathan Wakely  <jwakely (a] redhat.com>
   4183  1.1.1.20  mrg 
   4184  1.1.1.20  mrg 	Backported from master:
   4185  1.1.1.20  mrg 	2020-06-08  Jonathan Wakely  <jwakely (a] redhat.com>
   4186  1.1.1.20  mrg 
   4187  1.1.1.20  mrg 	* include/bits/unique_ptr.h (operator<<): Define for C++20.
   4188  1.1.1.20  mrg 	* testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
   4189  1.1.1.20  mrg 	* testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
   4190  1.1.1.20  mrg 	line number.
   4191  1.1.1.20  mrg 	* testsuite/20_util/default_delete/void_neg.cc: Likewise.
   4192  1.1.1.20  mrg 
   4193  1.1.1.20  mrg 2020-07-09  Jonathan Wakely  <jwakely (a] redhat.com>
   4194  1.1.1.20  mrg 
   4195  1.1.1.20  mrg 	Backported from master:
   4196  1.1.1.20  mrg 	2020-05-27  Jonathan Wakely  <jwakely (a] redhat.com>
   4197  1.1.1.20  mrg 
   4198  1.1.1.20  mrg 	PR libstdc++/95322
   4199  1.1.1.20  mrg 	* include/std/ranges (transform_view::_Sentinel): Allow hidden
   4200  1.1.1.20  mrg 	friends to work with _Iterator<true> and _Iterator<false>.
   4201  1.1.1.20  mrg 	(join_view::_Sentinel): Likewise.
   4202  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/95322.cc: New test.
   4203  1.1.1.20  mrg 
   4204  1.1.1.20  mrg 2020-07-09  Jonathan Wakely  <jwakely (a] redhat.com>
   4205  1.1.1.20  mrg 
   4206  1.1.1.20  mrg 	Backported from master:
   4207  1.1.1.20  mrg 	2020-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   4208  1.1.1.20  mrg 
   4209  1.1.1.20  mrg 	PR libstdc++/94936
   4210  1.1.1.20  mrg 	* src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
   4211  1.1.1.20  mrg 	Add comment about single-threaded behaviour.
   4212  1.1.1.20  mrg 	(synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
   4213  1.1.1.20  mrg 	class member access out of loop.
   4214  1.1.1.20  mrg 	(synchronized_pool_resource::synchronized_pool_resource())
   4215  1.1.1.20  mrg 	(synchronized_pool_resource::~synchronized_pool_resource())
   4216  1.1.1.20  mrg 	(synchronized_pool_resource::release()): Check __gthread_active_p
   4217  1.1.1.20  mrg 	before creating and/or deleting the thread-specific data key.
   4218  1.1.1.20  mrg 	(synchronized_pool_resource::_M_thread_specific_pools()): Adjust
   4219  1.1.1.20  mrg 	assertions.
   4220  1.1.1.20  mrg 	(synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
   4221  1.1.1.20  mrg 	path for single-threaded case.
   4222  1.1.1.20  mrg 	(synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
   4223  1.1.1.20  mrg 	Likewise. Return if unable to find a pool that owns the allocation.
   4224  1.1.1.20  mrg 	* testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
   4225  1.1.1.20  mrg 	New test.
   4226  1.1.1.20  mrg 	* testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
   4227  1.1.1.20  mrg 	test.
   4228  1.1.1.20  mrg 	* testsuite/20_util/synchronized_pool_resource/release_single.cc: New
   4229  1.1.1.20  mrg 	test.
   4230  1.1.1.20  mrg 
   4231  1.1.1.20  mrg 2020-07-09  Jonathan Wakely  <jwakely (a] redhat.com>
   4232  1.1.1.20  mrg 
   4233  1.1.1.20  mrg 	Backported from master:
   4234  1.1.1.20  mrg 	2020-05-19  Jonathan Wakely  <jwakely (a] redhat.com>
   4235  1.1.1.20  mrg 
   4236  1.1.1.20  mrg 	PR libstdc++/94087
   4237  1.1.1.20  mrg 	* src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
   4238  1.1.1.20  mrg 	passed in.
   4239  1.1.1.20  mrg 	(__x86_rdseed_rdrand): New function that uses rdseed with rdrand
   4240  1.1.1.20  mrg 	fallback.
   4241  1.1.1.20  mrg 	(random_device::_M_init): Use __x86_rdseed_rdrand when both
   4242  1.1.1.20  mrg 	instructions are available.
   4243  1.1.1.20  mrg 	* testsuite/26_numerics/random/random_device/94087.cc: New test.
   4244  1.1.1.20  mrg 
   4245  1.1.1.20  mrg 2020-07-02  Ville Voutilainen  <ville.voutilainen (a] gmail.com>
   4246  1.1.1.20  mrg 
   4247  1.1.1.20  mrg 	Backported from master:
   4248  1.1.1.20  mrg 	2020-07-02  Ville Voutilainen  <ville.voutilainen (a] gmail.com>
   4249  1.1.1.20  mrg 
   4250  1.1.1.20  mrg 	PR libstdc++/91807
   4251  1.1.1.20  mrg 	* include/std/variant
   4252  1.1.1.20  mrg 	(_Copy_assign_base::operator=(const _Copy_assign_base&):
   4253  1.1.1.20  mrg 	Do the move-assignment from a temporary so that the temporary
   4254  1.1.1.20  mrg 	is constructed with an explicit index.
   4255  1.1.1.20  mrg 	* testsuite/20_util/variant/91807.cc: New.
   4256  1.1.1.20  mrg 
   4257  1.1.1.20  mrg 2020-07-02  Jonathan Wakely  <jwakely.gcc (a] gmail.com>
   4258  1.1.1.20  mrg 
   4259  1.1.1.20  mrg 	Backported from master:
   4260  1.1.1.20  mrg 	2020-07-02  Jonathan Wakely  <jwakely.gcc (a] gmail.com>
   4261  1.1.1.20  mrg 
   4262  1.1.1.20  mrg 	PR libstdc++/91153
   4263  1.1.1.20  mrg 	PR target/93224
   4264  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_float/1.cc: Use different values
   4265  1.1.1.20  mrg 	for tests.
   4266  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_ref/float.cc: Likewise.
   4267  1.1.1.20  mrg 
   4268  1.1.1.20  mrg 2020-07-01  Jonathan Wakely  <jwakely (a] redhat.com>
   4269  1.1.1.20  mrg 
   4270  1.1.1.20  mrg 	Backported from master:
   4271  1.1.1.20  mrg 	2020-06-16  Jonathan Wakely  <jwakely (a] redhat.com>
   4272  1.1.1.20  mrg 
   4273  1.1.1.20  mrg 	PR libstdc++/95282
   4274  1.1.1.20  mrg 	* include/bits/atomic_base.h (__atomic_impl::load): Add
   4275  1.1.1.20  mrg 	const-qualifier to parameter so that _Tp is deduced as the
   4276  1.1.1.20  mrg 	non-const type, and use _Val to get the unqualified type.
   4277  1.1.1.20  mrg 	(__atomic_impl::exchange): Use the _Val alias to remove
   4278  1.1.1.20  mrg 	volatile from the reinterpret_cast result type.
   4279  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_float/95282.cc: New test.
   4280  1.1.1.20  mrg 
   4281  1.1.1.20  mrg 2020-07-01  Jonathan Wakely  <jwakely (a] redhat.com>
   4282  1.1.1.20  mrg 
   4283  1.1.1.20  mrg 	Backported from master:
   4284  1.1.1.20  mrg 	2020-07-01  Jonathan Wakely  <jwakely (a] redhat.com>
   4285  1.1.1.20  mrg 
   4286  1.1.1.20  mrg 	PR libstdc++/94627
   4287  1.1.1.20  mrg 	* include/bits/regex.h (operator==, operator!=): Remove noexcept
   4288  1.1.1.20  mrg 	equality comparisons for match_results.
   4289  1.1.1.20  mrg 	* testsuite/28_regex/match_results/94627.cc: New test.
   4290  1.1.1.20  mrg 
   4291  1.1.1.20  mrg 2020-06-29  Ville Voutilainen  <ville.voutilainen (a] gmail.com>
   4292  1.1.1.20  mrg 
   4293  1.1.1.20  mrg 	Backported from master:
   4294  1.1.1.20  mrg 	2020-06-28  Ville Voutilainen  <ville.voutilainen (a] gmail.com>
   4295  1.1.1.20  mrg 
   4296  1.1.1.20  mrg 	PR libstdc++/95915
   4297  1.1.1.20  mrg 	* include/std/variant (_Uninitialized):
   4298  1.1.1.20  mrg 	Adjust the condition and the comment.
   4299  1.1.1.20  mrg 	* testsuite/20_util/variant/95915.cc: New.
   4300  1.1.1.20  mrg 	* testsuite/20_util/variant/compile.cc: Add new test.
   4301  1.1.1.20  mrg 
   4302  1.1.1.20  mrg 2020-06-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4303  1.1.1.20  mrg 
   4304  1.1.1.20  mrg 	Backported from master:
   4305  1.1.1.20  mrg 	2020-06-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4306  1.1.1.20  mrg 
   4307  1.1.1.20  mrg 	* include/std/charconv (__from_chars_binary): Ignore leading zeros.
   4308  1.1.1.20  mrg 	* testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases,
   4309  1.1.1.20  mrg 	not just 10 and 16.
   4310  1.1.1.20  mrg 	* testsuite/20_util/from_chars/3.cc: New test.
   4311  1.1.1.20  mrg 
   4312  1.1.1.20  mrg 2020-06-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4313  1.1.1.20  mrg 
   4314  1.1.1.20  mrg 	Backported from master:
   4315  1.1.1.20  mrg 	2020-06-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4316  1.1.1.20  mrg 
   4317  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers.
   4318  1.1.1.20  mrg 	* include/std/charconv (__detail::__to_chars): Avoid
   4319  1.1.1.20  mrg 	-Wsign-compare warning.
   4320  1.1.1.20  mrg 
   4321  1.1.1.20  mrg 2020-06-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4322  1.1.1.20  mrg 
   4323  1.1.1.20  mrg 	Backported from master:
   4324  1.1.1.20  mrg 	2020-06-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4325  1.1.1.20  mrg 
   4326  1.1.1.20  mrg 	PR libstdc++/95851
   4327  1.1.1.20  mrg 	* include/std/charconv (__to_chars_i): Check for zero-sized
   4328  1.1.1.20  mrg 	buffer unconditionally.
   4329  1.1.1.20  mrg 	* testsuite/20_util/to_chars/95851.cc: New test.
   4330  1.1.1.20  mrg 
   4331  1.1.1.20  mrg 2020-06-22  Jason Merrill  <jason (a] redhat.com>
   4332  1.1.1.20  mrg 
   4333  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
   4334  1.1.1.20  mrg 	Remove greedy_ops tests.
   4335  1.1.1.20  mrg 	* testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
   4336  1.1.1.20  mrg 	Remove greedy_ops tests.
   4337  1.1.1.20  mrg 
   4338  1.1.1.20  mrg 2020-06-11  Patrick Palka  <ppalka (a] redhat.com>
   4339  1.1.1.20  mrg 
   4340  1.1.1.20  mrg 	PR libstdc++/95578
   4341  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__lexicographical_compare_fn):
   4342  1.1.1.20  mrg 	Also check that the iterator and sentinel have the same type before
   4343  1.1.1.20  mrg 	applying the unwrapping optimization for __normal_iterator.
   4344  1.1.1.20  mrg 	Split the check into two, one for the first iterator/sentinel
   4345  1.1.1.20  mrg 	pair and another for second iterator/sentinel pair.  Remove uses
   4346  1.1.1.20  mrg 	of __niter_base, and remove uses of std::move on a
   4347  1.1.1.20  mrg 	__normal_iterator.
   4348  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__equal_fn): Likewise.
   4349  1.1.1.20  mrg 	(__copy_or_move): Likewise.  Perform similar adjustments for
   4350  1.1.1.20  mrg 	the reverse_iterator and move_iterator optimizations.  Inline
   4351  1.1.1.20  mrg 	the checks into the if-constexprs, and use using-declarations to
   4352  1.1.1.20  mrg 	make them less visually noisy.  Remove uses of __niter_wrap.
   4353  1.1.1.20  mrg 	(__copy_or_move_backward): Likewise.
   4354  1.1.1.20  mrg 	* testsuite/25_algorithms/copy/95578.cc: New test.
   4355  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_backward/95578.cc: New test.
   4356  1.1.1.20  mrg 	* testsuite/25_algorithms/equal/95578.cc: New test.
   4357  1.1.1.20  mrg 	* testsuite/25_algorithms/lexicographical_compare/95578.cc: New test.
   4358  1.1.1.20  mrg 	* testsuite/25_algorithms/move/95578.cc: New test.
   4359  1.1.1.20  mrg 	* testsuite/25_algorithms/move_backward/95578.cc: New test.
   4360  1.1.1.20  mrg 
   4361  1.1.1.20  mrg 2020-05-28  Patrick Palka  <ppalka (a] redhat.com>
   4362  1.1.1.20  mrg 
   4363  1.1.1.20  mrg 	PR libstdc++/95322
   4364  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
   4365  1.1.1.20  mrg 	Remove and instead define it ...
   4366  1.1.1.20  mrg 	(common_iterator::_Proxy): ... here.
   4367  1.1.1.20  mrg 	(common_iterator::operator->): Use it.
   4368  1.1.1.20  mrg 	* testsuite/24_iterators/common_iterator/2.cc: New test.
   4369  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/95322.cc: New test.
   4370  1.1.1.20  mrg 
   4371  1.1.1.20  mrg 2020-05-26  Alexandre Oliva  <oliva (a] adacore.com>
   4372  1.1.1.20  mrg 
   4373  1.1.1.20  mrg 	PR libstdc++/77691
   4374  1.1.1.20  mrg 	* include/experimental/memory_resource
   4375  1.1.1.20  mrg 	(__resource_adaptor_imp::do_allocate): Handle max_align_t on
   4376  1.1.1.20  mrg 	x86-vxworks as on x86-solaris.
   4377  1.1.1.20  mrg 	(__resource_adaptor_imp::do_deallocate): Likewise.
   4378  1.1.1.20  mrg 	* testsuite/experimental/memory_resource/new_delete_resource.cc:
   4379  1.1.1.20  mrg 	Drop xfail.
   4380  1.1.1.20  mrg 	(BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
   4381  1.1.1.20  mrg 	(test03): Drop max-align test for char-aligned alloc.
   4382  1.1.1.20  mrg 
   4383  1.1.1.20  mrg 2020-05-23  Jonathan Wakely  <jwakely (a] redhat.com>
   4384  1.1.1.20  mrg 
   4385  1.1.1.20  mrg 	Backport from mainline
   4386  1.1.1.20  mrg 	2020-05-23  Jonathan Wakely  <jwakely (a] redhat.com>
   4387  1.1.1.20  mrg 
   4388  1.1.1.20  mrg 	* include/bits/fs_path.h (__detail::_S_range_begin)
   4389  1.1.1.20  mrg 	(__detail::_S_range_end): Remove unintentional static specifiers.
   4390  1.1.1.20  mrg 	* include/experimental/bits/fs_path.h (__detail::_S_range_begin)
   4391  1.1.1.20  mrg 	(__detail::_S_range_end): Likewise.
   4392  1.1.1.20  mrg 
   4393  1.1.1.20  mrg 2020-05-23  Jonathan Wakely  <jwakely (a] redhat.com>
   4394  1.1.1.20  mrg 
   4395  1.1.1.20  mrg 	Backport from mainline
   4396  1.1.1.20  mrg 	2020-05-23  Jonathan Wakely  <jwakely (a] redhat.com>
   4397  1.1.1.20  mrg 
   4398  1.1.1.20  mrg 	PR libstdc++/95289
   4399  1.1.1.20  mrg 	* include/debug/helper_functions.h (__get_distance): Only declare
   4400  1.1.1.20  mrg 	as a constexpr function for C++14 and up.
   4401  1.1.1.20  mrg 	* testsuite/25_algorithms/copy/debug/95289.cc: New test.
   4402  1.1.1.20  mrg 
   4403  1.1.1.20  mrg 2020-05-21  Jonathan Wakely  <jwakely (a] redhat.com>
   4404  1.1.1.20  mrg 
   4405  1.1.1.20  mrg 	Backport from mainline
   4406  1.1.1.20  mrg 	2020-05-21  Jonathan Wakely  <jwakely (a] redhat.com>
   4407  1.1.1.20  mrg 
   4408  1.1.1.20  mrg 	* include/experimental/executor (use_future_t::use_future_t()): Fix
   4409  1.1.1.20  mrg 	incorrect noexcept-specifier.
   4410  1.1.1.20  mrg 	* include/experimental/internet (basic_resolver_results): Adjust
   4411  1.1.1.20  mrg 	whitespace.
   4412  1.1.1.20  mrg 	* include/experimental/socket (__basic_socket_impl::release): Add
   4413  1.1.1.20  mrg 	member function.
   4414  1.1.1.20  mrg 	(basic_socket(io_context&, const endpoint_type&)): Fix argument to
   4415  1.1.1.20  mrg 	target constructor.
   4416  1.1.1.20  mrg 	(basic_socket::release(), basic_socket::release(error_code&)): Add
   4417  1.1.1.20  mrg 	missing member functions.
   4418  1.1.1.20  mrg 	(basic_socket::is_open()): Add nodiscard attribute.
   4419  1.1.1.20  mrg 	(basic_socket::close(error_code&)): Pass argument to base function.
   4420  1.1.1.20  mrg 	(basic_socket_acceptor::release())
   4421  1.1.1.20  mrg 	(basic_socket_acceptor::release(error_code&)): Add missing member
   4422  1.1.1.20  mrg 	functions.
   4423  1.1.1.20  mrg 	(basic_socket_acceptor::is_open()): Add nodiscard attribute.
   4424  1.1.1.20  mrg 	(basic_socket_streambuf::error()): Add noexcept.
   4425  1.1.1.20  mrg 	(basic_socket_iostream::error()): Likewise.
   4426  1.1.1.20  mrg 	* testsuite/experimental/net/socket/basic_socket.cc: New test.
   4427  1.1.1.20  mrg 
   4428  1.1.1.20  mrg 2020-05-21  Jonathan Wakely  <jwakely (a] redhat.com>
   4429  1.1.1.20  mrg 
   4430  1.1.1.20  mrg 	Backport from mainline
   4431  1.1.1.20  mrg 	2020-05-21  Jonathan Wakely  <jwakely (a] redhat.com>
   4432  1.1.1.20  mrg 
   4433  1.1.1.20  mrg 	PR libstdc++/93983
   4434  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
   4435  1.1.1.20  mrg 	Reorder constraints to avoid recursion when constructors use
   4436  1.1.1.20  mrg 	iterator_traits (LWG 3420).
   4437  1.1.1.20  mrg 	* testsuite/24_iterators/customization_points/lwg3420.cc: New test.
   4438  1.1.1.20  mrg 
   4439  1.1.1.20  mrg 2020-05-12  Jonathan Wakely  <jwakely (a] redhat.com>
   4440  1.1.1.20  mrg 
   4441  1.1.1.20  mrg 	Backport from mainline
   4442  1.1.1.20  mrg 	2020-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   4443  1.1.1.20  mrg 
   4444  1.1.1.20  mrg 	PR libstdc++/94906
   4445  1.1.1.20  mrg 	* src/c++17/memory_resource.cc
   4446  1.1.1.20  mrg 	(monotonic_buffer_resource::_Chunk::release): Use size_t for shift
   4447  1.1.1.20  mrg 	operands.
   4448  1.1.1.20  mrg 
   4449  1.1.1.20  mrg 	Backport from mainline
   4450  1.1.1.20  mrg 	2020-05-03  Jonathan Wakely  <jwakely (a] redhat.com>
   4451  1.1.1.20  mrg 
   4452  1.1.1.20  mrg 	PR libstdc++/94933
   4453  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
   4454  1.1.1.20  mrg 	usable in constant expressions.
   4455  1.1.1.20  mrg 	* testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
   4456  1.1.1.20  mrg 	non-scalars.
   4457  1.1.1.20  mrg 
   4458  1.1.1.20  mrg 2020-05-07  Jonathan Wakely  <jwakely (a] redhat.com>
   4459  1.1.1.20  mrg 
   4460  1.1.1.20  mrg 	Backport from mainline
   4461  1.1.1.20  mrg 	2020-05-01  Jonathan Wakely  <jwakely (a] redhat.com>
   4462  1.1.1.20  mrg 		    Patrick Palka  <ppalka (a] redhat.com>
   4463  1.1.1.20  mrg 
   4464  1.1.1.20  mrg 	PR libstdc++/92894
   4465  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
   4466  1.1.1.20  mrg 	Add trait to determine return type and an alias for it.
   4467  1.1.1.20  mrg 	(ranges::__cust_imove::_IMove::operator()): Use __result instead of
   4468  1.1.1.20  mrg 	deduced return type.
   4469  1.1.1.20  mrg 	* testsuite/24_iterators/customization_points/92894.cc: New test.
   4470  1.1.1.20  mrg 	* testsuite/24_iterators/indirect_callable/92894.cc: New test.
   4471  1.1.1.20  mrg 
   4472  1.1.1.20  mrg 2020-05-07  Release Manager
   4473  1.1.1.20  mrg 
   4474  1.1.1.20  mrg 	* GCC 10.1.0 released.
   4475  1.1.1.20  mrg 
   4476  1.1.1.20  mrg 2020-05-07  Eric Botcazou  <ebotcazou (a] adacore.com>
   4477  1.1.1.20  mrg 
   4478  1.1.1.20  mrg 	* config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
   4479  1.1.1.20  mrg 	* config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
   4480  1.1.1.20  mrg 
   4481  1.1.1.20  mrg 2020-05-06  H.J. Lu  <hongjiu.lu (a] intel.com>
   4482  1.1.1.20  mrg 
   4483  1.1.1.20  mrg 	* config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
   4484  1.1.1.20  mrg 
   4485  1.1.1.20  mrg 2020-05-06  Rainer Orth  <ro (a] CeBiTec.Uni-Bielefeld.DE>
   4486  1.1.1.20  mrg 
   4487  1.1.1.20  mrg 	* config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
   4488  1.1.1.20  mrg 	* config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
   4489  1.1.1.20  mrg 	Likewise.
   4490  1.1.1.20  mrg 	* config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
   4491  1.1.1.20  mrg 	* config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
   4492  1.1.1.20  mrg 	Likewise.
   4493  1.1.1.20  mrg 
   4494  1.1.1.20  mrg 2020-05-06  Jonathan Wakely  <jwakely (a] redhat.com>
   4495  1.1.1.20  mrg 
   4496  1.1.1.20  mrg 	* doc/xml/manual/abi.xml (abi.versioning.history): Document library
   4497  1.1.1.20  mrg 	versions for GCC 9.[123] and 10.1 releases.
   4498  1.1.1.20  mrg 	* doc/html/*: Regenerate.
   4499  1.1.1.20  mrg 
   4500  1.1.1.20  mrg 2020-05-06  Jakub Jelinek  <jakub (a] redhat.com>
   4501  1.1.1.20  mrg 
   4502  1.1.1.20  mrg 	* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
   4503  1.1.1.20  mrg 	* config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
   4504  1.1.1.20  mrg 	* config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
   4505  1.1.1.19  mrg 	* config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
   4506  1.1.1.19  mrg 	* config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
   4507  1.1.1.19  mrg 	* config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
   4508  1.1.1.19  mrg 	* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
   4509  1.1.1.19  mrg 
   4510  1.1.1.20  mrg 2020-05-04  Jonathan Wakely  <jwakely (a] redhat.com>
   4511  1.1.1.20  mrg 
   4512  1.1.1.20  mrg 	* doc/xml/faq.xml: Use working link for SGI STL FAQ.
   4513  1.1.1.20  mrg 	* doc/html/*: Regenerate.
   4514  1.1.1.20  mrg 
   4515  1.1.1.20  mrg 2020-05-01  Jonathan Wakely  <jwakely (a] redhat.com>
   4516  1.1.1.20  mrg 
   4517  1.1.1.20  mrg 	Backport from mainline
   4518  1.1.1.20  mrg 	2020-05-01  Jonathan Wakely  <jwakely (a] redhat.com>
   4519  1.1.1.20  mrg 
   4520  1.1.1.20  mrg 	PR libstdc++/94901
   4521  1.1.1.20  mrg 	* include/std/type_traits (__is_complete_or_unbounded): Replace
   4522  1.1.1.20  mrg 	BADNAME _T with _Tp.
   4523  1.1.1.20  mrg 	* testsuite/17_intro/badnames.cc: New test.
   4524  1.1.1.20  mrg 
   4525  1.1.1.20  mrg 2020-04-30  Jonathan Wakely  <jwakely (a] redhat.com>
   4526  1.1.1.20  mrg 
   4527  1.1.1.20  mrg 	PR libstdc++/89510
   4528  1.1.1.20  mrg 	* include/bits/alloc_traits.h (allocator_traits::_S_construct)
   4529  1.1.1.20  mrg 	(allocator_traits::_S_destroy)
   4530  1.1.1.20  mrg 	(allocator_traits<allocator<T>>::construct): Use traits in
   4531  1.1.1.20  mrg 	noexcept-specifiers.
   4532  1.1.1.20  mrg 	* include/bits/allocator.h (allocator<void>::construct)
   4533  1.1.1.20  mrg 	(allocator<void>::destroy): Likewise.
   4534  1.1.1.20  mrg 	* include/ext/malloc_allocator.h (malloc_allocator::construct)
   4535  1.1.1.20  mrg 	(malloc_allocator::destroy): Likewise.
   4536  1.1.1.20  mrg 	* include/ext/new_allocator.h (new_allocator::construct)
   4537  1.1.1.20  mrg 	(new_allocator::destroy): Likewise.
   4538  1.1.1.20  mrg 	* testsuite/20_util/allocator/89510.cc: New test.
   4539  1.1.1.20  mrg 	* testsuite/ext/malloc_allocator/89510.cc: New test.
   4540  1.1.1.20  mrg 	* testsuite/ext/new_allocator/89510.cc: New test.
   4541  1.1.1.20  mrg 
   4542  1.1.1.20  mrg 2020-04-29  Jonathan Wakely  <jwakely (a] redhat.com>
   4543  1.1.1.20  mrg 
   4544  1.1.1.20  mrg 	PR libstdc++/94854
   4545  1.1.1.20  mrg 	* include/bits/basic_string.tcc: Update comment about explicit
   4546  1.1.1.20  mrg 	instantiations.
   4547  1.1.1.20  mrg 
   4548  1.1.1.20  mrg 2020-04-28  Jonathan Wakely  <jwakely (a] redhat.com>
   4549  1.1.1.20  mrg 
   4550  1.1.1.20  mrg 	PR libstdc++/91480
   4551  1.1.1.20  mrg 	* include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
   4552  1.1.1.20  mrg 	Remove non-standard macro.
   4553  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
   4554  1.1.1.20  mrg 	to indicate P1032R1 support.
   4555  1.1.1.20  mrg 	* include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
   4556  1.1.1.20  mrg 	* include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
   4557  1.1.1.20  mrg 	* include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
   4558  1.1.1.20  mrg 	* include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
   4559  1.1.1.20  mrg 	(__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
   4560  1.1.1.20  mrg 	(__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
   4561  1.1.1.20  mrg 	* testsuite/20_util/function_objects/constexpr_searcher.cc: Check
   4562  1.1.1.20  mrg 	feature test macro.
   4563  1.1.1.20  mrg 	* testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
   4564  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operations/copy/char/
   4565  1.1.1.20  mrg 	constexpr.cc: Likewise.
   4566  1.1.1.20  mrg 	* testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
   4567  1.1.1.20  mrg 
   4568  1.1.1.20  mrg 	PR libstdc++/94831
   4569  1.1.1.20  mrg 	* include/bits/alloc_traits.h (_S_construct): Restore placement
   4570  1.1.1.20  mrg 	new-expression for C++11/14/17 and call std::construct_at directly
   4571  1.1.1.20  mrg 	for C++20.
   4572  1.1.1.20  mrg 	* include/bits/stl_construct.h (_Construct): Revert to non-constexpr
   4573  1.1.1.20  mrg 	function returning void.
   4574  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/
   4575  1.1.1.20  mrg 	uninitialized_value_construct/94831.cc: New test.
   4576  1.1.1.20  mrg 	* testsuite/23_containers/vector/cons/94831.cc: New test.
   4577  1.1.1.20  mrg 
   4578  1.1.1.20  mrg 2020-04-28  Patrick Palka  <ppalka (a] redhat.com>
   4579  1.1.1.20  mrg 
   4580  1.1.1.20  mrg 	LWG 3433 subrange::advance(n) has UB when n < 0
   4581  1.1.1.20  mrg 	* include/std/ranges (subrange::prev): Fix typo.
   4582  1.1.1.20  mrg 	(subrange::advance): Handle a negative argument as per the proposed
   4583  1.1.1.20  mrg 	resolution of LWG 3433.
   4584  1.1.1.20  mrg 	* testsuite/std/ranges/subrange/lwg3433.cc: New test.
   4585  1.1.1.20  mrg 
   4586  1.1.1.20  mrg 2020-04-28  Jonathan Wakely  <jwakely (a] redhat.com>
   4587  1.1.1.20  mrg 	    Iain Sandoe  <iain (a] sandoe.co.uk>
   4588  1.1.1.20  mrg 
   4589  1.1.1.20  mrg 	PR c++/94759
   4590  1.1.1.20  mrg 	* include/std/coroutine: Implement handing for non-
   4591  1.1.1.20  mrg 	class coroutine return types.
   4592  1.1.1.20  mrg 
   4593  1.1.1.20  mrg 2020-04-24  Jonathan Wakely  <jwakely (a] redhat.com>
   4594  1.1.1.20  mrg 
   4595  1.1.1.20  mrg 	* include/experimental/executor (service_already_exists): Make default
   4596  1.1.1.20  mrg 	constructor public (LWG 3414).
   4597  1.1.1.20  mrg 	* testsuite/experimental/net/execution_context/make_service.cc: Check
   4598  1.1.1.20  mrg 	the service_already_exists can be default constructed.
   4599  1.1.1.20  mrg 
   4600  1.1.1.20  mrg 2020-04-24  Kamlesh Kumar  <kamleshbhalui (a] gmail.com>
   4601  1.1.1.20  mrg 	    Jonathan Wakely  <jwakely (a] redhat.com>
   4602  1.1.1.20  mrg 
   4603  1.1.1.20  mrg 	PR libstdc++/90415
   4604  1.1.1.20  mrg 	PR libstdc++/92156
   4605  1.1.1.20  mrg 	* include/std/any (any): Rename template parameters for consistency
   4606  1.1.1.20  mrg 	with the standard.
   4607  1.1.1.20  mrg 	(any::_Decay): Rename to _Decay_if_not_any.
   4608  1.1.1.20  mrg 	(any::any(T&&):: Remove is_constructible from constraints. Remove
   4609  1.1.1.20  mrg 	non-standard overload.
   4610  1.1.1.20  mrg 	(any::any(in_place_type_t<T>, Args&&...))
   4611  1.1.1.20  mrg 	(any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
   4612  1.1.1.20  mrg 	(any::emplace(Args&&...))
   4613  1.1.1.20  mrg 	(any::emplace(initializer_list<U>, Args&&...)):
   4614  1.1.1.20  mrg 	Use decay_t instead of _Decay.
   4615  1.1.1.20  mrg 	* testsuite/20_util/any/cons/90415.cc: New test.
   4616  1.1.1.20  mrg 	* testsuite/20_util/any/cons/92156.cc: New Test.
   4617  1.1.1.20  mrg 	* testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
   4618  1.1.1.20  mrg 	more robust.
   4619  1.1.1.20  mrg 	* testsuite/20_util/any/modifiers/92156.cc: New test.
   4620  1.1.1.20  mrg 
   4621  1.1.1.20  mrg 2020-04-23  Jonathan Wakely  <jwakely (a] redhat.com>
   4622  1.1.1.20  mrg 
   4623  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
   4624  1.1.1.20  mrg 	* doc/html/*: Regenerate.
   4625  1.1.1.20  mrg 
   4626  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
   4627  1.1.1.20  mrg 	value for C++17 to 201803L because P0858R0 is supported for C++17.
   4628  1.1.1.20  mrg 	* include/std/version (__cpp_lib_array_constexpr): Likewise.
   4629  1.1.1.20  mrg 	* testsuite/23_containers/array/element_access/constexpr_c++17.cc:
   4630  1.1.1.20  mrg 	Check for value corresponding to P0031R0 features being tested.
   4631  1.1.1.20  mrg 	* testsuite/23_containers/array/requirements/constexpr_iter.cc:
   4632  1.1.1.20  mrg 	Check for value corresponding to P0858R0 features being tested.
   4633  1.1.1.20  mrg 
   4634  1.1.1.20  mrg 	* include/std/version (__cpp_lib_three_way_comparison): Define for
   4635  1.1.1.20  mrg 	freestanding builds.
   4636  1.1.1.20  mrg 
   4637  1.1.1.20  mrg 2020-04-23  Thomas Rodgers  <rodgert (a] appliantology.com>
   4638  1.1.1.20  mrg 
   4639  1.1.1.20  mrg 	* include/experimental/net/executor (system_context): Mark
   4640  1.1.1.20  mrg 	system_context::system_context() = delete.
   4641  1.1.1.20  mrg 	* testsuite/experimental/net/executor/1.cc: Add new
   4642  1.1.1.20  mrg 	test to check system_context is not default constructible.
   4643  1.1.1.20  mrg 
   4644  1.1.1.20  mrg 2020-04-23  Iain Sandoe  <iain (a] sandoe.co.uk>
   4645  1.1.1.20  mrg 
   4646  1.1.1.20  mrg 	* include/std/coroutine: Update the inline namespace to __n4861.
   4647  1.1.1.20  mrg 	Add the __cpp_lib_coroutine define, set to 201902L.
   4648  1.1.1.20  mrg 	* include/std/version: Add __cpp_lib_coroutine, set to 201902L.
   4649  1.1.1.20  mrg 
   4650  1.1.1.20  mrg 2020-04-22  Jonathan Wakely  <jwakely (a] redhat.com>
   4651  1.1.1.20  mrg 
   4652  1.1.1.20  mrg 	* include/std/execution (__cpp_lib_execution): Define to indicate
   4653  1.1.1.20  mrg 	support for P0024R2 and P1001R2.
   4654  1.1.1.20  mrg 	* include/std/version (__cpp_lib_execution): Define.
   4655  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
   4656  1.1.1.20  mrg 	defined by <algorithm>, move other tests to new tests ...
   4657  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
   4658  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
   4659  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
   4660  1.1.1.20  mrg 	* testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
   4661  1.1.1.20  mrg 
   4662  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
   4663  1.1.1.20  mrg 	different values for C++17 and C++20, to indicate different feature
   4664  1.1.1.20  mrg 	sets. Update value for C++20 to indicate P1032R1 support.
   4665  1.1.1.20  mrg 	* include/std/version (__cpp_lib_array_constexpr): Likewise.
   4666  1.1.1.20  mrg 	* testsuite/23_containers/array/comparison_operators/constexpr.cc:
   4667  1.1.1.20  mrg 	Check feature test macro.
   4668  1.1.1.20  mrg 	* testsuite/23_containers/array/element_access/constexpr_c++17.cc:
   4669  1.1.1.20  mrg 	New test.
   4670  1.1.1.20  mrg 	* testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
   4671  1.1.1.20  mrg 	feature test macro.
   4672  1.1.1.20  mrg 	* testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
   4673  1.1.1.20  mrg 	in C++17 mode and check feature test macro.
   4674  1.1.1.20  mrg 
   4675  1.1.1.20  mrg 	* include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
   4676  1.1.1.20  mrg 	here.
   4677  1.1.1.20  mrg 	* testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
   4678  1.1.1.20  mrg 	defined by <utility>.
   4679  1.1.1.20  mrg 
   4680  1.1.1.20  mrg 	* include/std/functional (__cpp_lib_concepts): Update macro value to
   4681  1.1.1.20  mrg 	indicate P1964R2 support.
   4682  1.1.1.20  mrg 	* include/std/version (__cpp_lib_concepts): Likewise.
   4683  1.1.1.20  mrg 	* testsuite/std/concepts/1.cc: Adjust expected value.
   4684  1.1.1.20  mrg 	* testsuite/std/concepts/2.cc: Likewise.
   4685  1.1.1.20  mrg 
   4686  1.1.1.20  mrg 	* include/std/functional (__cpp_lib_constexpr_invoke): Rename to
   4687  1.1.1.20  mrg 	__cpp_lib_constexpr_functional.
   4688  1.1.1.20  mrg 	* include/std/version (__cpp_lib_constexpr_invoke): Likewise.
   4689  1.1.1.20  mrg 	* testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
   4690  1.1.1.20  mrg 
   4691  1.1.1.20  mrg 	* include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
   4692  1.1.1.20  mrg 	indicate P1006R1 support.
   4693  1.1.1.20  mrg 	(__cpp_lib_to_address): Define to indicate P0653R2 support.
   4694  1.1.1.20  mrg 	* include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
   4695  1.1.1.20  mrg 	P1227R2 support.
   4696  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
   4697  1.1.1.20  mrg 	P0769R2 support.
   4698  1.1.1.20  mrg 	* include/std/atomic (__cpp_lib_atomic_float): Define to indicate
   4699  1.1.1.20  mrg 	P0020R6 support.
   4700  1.1.1.20  mrg 	* include/std/memory (__cpp_lib_assume_aligned): Define to indicate
   4701  1.1.1.20  mrg 	P1007R3 support.
   4702  1.1.1.20  mrg 	* include/std/memory_resource (__cpp_lib_polymorphic_allocator):
   4703  1.1.1.20  mrg 	Define to indicate P0339R6 support.
   4704  1.1.1.20  mrg 	* include/std/string_view (__cpp_lib_starts_ends_with): Define to
   4705  1.1.1.20  mrg 	indicate P0457R2 support.
   4706  1.1.1.20  mrg 	* include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
   4707  1.1.1.20  mrg 	to indicate P0758R1 support.
   4708  1.1.1.20  mrg 	(__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
   4709  1.1.1.20  mrg 	(__cpp_lib_type_identity): Define to indicate P0887R1 support.
   4710  1.1.1.20  mrg 	* include/std/version (__cpp_lib_atomic_float)
   4711  1.1.1.20  mrg 	(__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
   4712  1.1.1.20  mrg 	(__cpp_lib_type_identity, __cpp_lib_assume_aligned)
   4713  1.1.1.20  mrg 	(__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
   4714  1.1.1.20  mrg 	(__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
   4715  1.1.1.20  mrg 	(__cpp_lib_to_address): Define.
   4716  1.1.1.20  mrg 	* testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
   4717  1.1.1.20  mrg 
   4718  1.1.1.20  mrg 	* include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
   4719  1.1.1.20  mrg 	macro.
   4720  1.1.1.20  mrg 	* include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
   4721  1.1.1.20  mrg 	Likewise.
   4722  1.1.1.20  mrg 	* include/std/version (__cpp_lib_map_insertion)
   4723  1.1.1.20  mrg 	(__cpp_lib_unordered_map_insertion): Remove.
   4724  1.1.1.20  mrg 
   4725  1.1.1.20  mrg 	* include/std/condition_variable (__cpp_lib_jthread): Remove
   4726  1.1.1.20  mrg 	redundant definition.
   4727  1.1.1.20  mrg 	* include/std/stop_token (__cpp_lib_jthread): Update macro value to
   4728  1.1.1.20  mrg 	indicate P1869R1 support.
   4729  1.1.1.20  mrg 	* include/std/version (__cpp_lib_jthread): Update value.
   4730  1.1.1.20  mrg 	* testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
   4731  1.1.1.20  mrg 	for updated macro value.
   4732  1.1.1.20  mrg 	* testsuite/30_threads/condition_variable_any/stop_token/2.cc:
   4733  1.1.1.20  mrg 	Likewise.
   4734  1.1.1.20  mrg 	* testsuite/30_threads/jthread/1.cc: Likewise.
   4735  1.1.1.20  mrg 	* testsuite/30_threads/jthread/2.cc: Likewise.
   4736  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/1.cc: Likewise.
   4737  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/2.cc: Likewise.
   4738  1.1.1.20  mrg 
   4739  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/erasure.cc: Check for
   4740  1.1.1.20  mrg 	__cpp_lib_erase_if macro.
   4741  1.1.1.20  mrg 	* testsuite/23_containers/deque/erasure.cc: Add header name to #error
   4742  1.1.1.20  mrg 	messages.
   4743  1.1.1.20  mrg 	* testsuite/23_containers/forward_list/erasure.cc: Likewise.
   4744  1.1.1.20  mrg 	* testsuite/23_containers/list/erasure.cc: Likewise.
   4745  1.1.1.20  mrg 	* testsuite/23_containers/map/erasure.cc: Likewise.
   4746  1.1.1.20  mrg 	* testsuite/23_containers/set/erasure.cc: Likewise.
   4747  1.1.1.20  mrg 	* testsuite/23_containers/unordered_map/erasure.cc: Likewise.
   4748  1.1.1.20  mrg 	* testsuite/23_containers/unordered_set/erasure.cc: Likewise.
   4749  1.1.1.20  mrg 	* testsuite/23_containers/vector/erasure.cc: Likewise.
   4750  1.1.1.20  mrg 
   4751  1.1.1.20  mrg 2020-04-21  Jonathan Wakely  <jwakely (a] redhat.com>
   4752  1.1.1.20  mrg 
   4753  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
   4754  1.1.1.20  mrg 	to define operator<=>.
   4755  1.1.1.20  mrg 	* testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
   4756  1.1.1.20  mrg 
   4757  1.1.1.20  mrg 	* doc/Makefile.am (xml_sources_manual): Add missing XML files.
   4758  1.1.1.20  mrg 	* doc/Makefile.in: Regenerate.
   4759  1.1.1.20  mrg 	* doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
   4760  1.1.1.20  mrg 	of "this page".
   4761  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
   4762  1.1.1.20  mrg 	to the C++11 status table.
   4763  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
   4764  1.1.1.20  mrg 	proposals with table matching contents of the C++14 standard.
   4765  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2017.xml: Add table matching contents of
   4766  1.1.1.20  mrg 	the C++17 standard.
   4767  1.1.1.20  mrg 	* doc/html/*: Regenerate.
   4768  1.1.1.20  mrg 
   4769  1.1.1.20  mrg 	PR c++/94149
   4770  1.1.1.20  mrg 	* include/std/type_traits (__is_nt_constructible_impl): Add partial
   4771  1.1.1.20  mrg 	specializations for bounded arrays with non-empty initializers.
   4772  1.1.1.20  mrg 	* testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
   4773  1.1.1.20  mrg 
   4774  1.1.1.20  mrg 2020-04-20  Thomas Rodgers  <trodgers (a] redhat.com>
   4775  1.1.1.20  mrg 
   4776  1.1.1.20  mrg 	* testsuite/lib/libstdc++.exp: Add additional_flags=
   4777  1.1.1.20  mrg 	-DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
   4778  1.1.1.20  mrg 	compiling with a newer Thread Building Blocks.
   4779  1.1.1.20  mrg 
   4780  1.1.1.20  mrg 2020-04-20  Jonathan Wakely  <jwakely (a] redhat.com>
   4781  1.1.1.20  mrg 
   4782  1.1.1.20  mrg 	* testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
   4783  1.1.1.20  mrg 
   4784  1.1.1.20  mrg 	* testsuite/20_util/is_constructible/51185.cc: Make test class a
   4785  1.1.1.20  mrg 	non-aggregate so that the test verifies the same thing in all -std
   4786  1.1.1.20  mrg 	modes.
   4787  1.1.1.20  mrg 	* testsuite/20_util/is_constructible/value-2.cc: Adjust expected
   4788  1.1.1.20  mrg 	results for some types when paren-init for aggregates is supported.
   4789  1.1.1.20  mrg 
   4790  1.1.1.20  mrg 	* include/std/version (__cpp_lib_three_way_comparison): Update value.
   4791  1.1.1.20  mrg 	* libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
   4792  1.1.1.20  mrg 	(__detail::__synth3way): Add noexcept-specifier.
   4793  1.1.1.20  mrg 
   4794  1.1.1.20  mrg 	* include/bits/stl_map.h (map): Define operator<=> and remove
   4795  1.1.1.20  mrg 	operator< for C++20.
   4796  1.1.1.20  mrg 	* include/bits/stl_multimap.h (multimap): Likewise.
   4797  1.1.1.20  mrg 	* include/bits/stl_multiset.h (multiset): Likewise.
   4798  1.1.1.20  mrg 	* include/bits/stl_set.h (set): Likewise.
   4799  1.1.1.20  mrg 	* include/bits/stl_tree.h (_Rb_tree): Likewise.
   4800  1.1.1.20  mrg 	(_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
   4801  1.1.1.20  mrg 	operator!= for C++20.
   4802  1.1.1.20  mrg 	* include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
   4803  1.1.1.20  mrg 	* include/debug/multimap.h (__gnu_debug::multimap): Likewise.
   4804  1.1.1.20  mrg 	* include/debug/multiset.h (__gnu_debug::multiset): Likewise.
   4805  1.1.1.20  mrg 	* include/debug/set.h (__gnu_debug::set): Likewise.
   4806  1.1.1.20  mrg 	* testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
   4807  1.1.1.20  mrg 	* testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
   4808  1.1.1.20  mrg 	* testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
   4809  1.1.1.20  mrg 	* testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
   4810  1.1.1.20  mrg 
   4811  1.1.1.20  mrg 2020-04-20  Matthias Kretz  <kretz (a] kde.org>
   4812  1.1.1.20  mrg 
   4813  1.1.1.20  mrg 	* testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
   4814  1.1.1.20  mrg 
   4815  1.1.1.20  mrg 2020-04-19  Jonathan Wakely  <jwakely (a] redhat.com>
   4816  1.1.1.20  mrg 
   4817  1.1.1.20  mrg 	* include/bits/stl_queue.h (queue): Define operator<=> for C++20.
   4818  1.1.1.20  mrg 	* include/bits/stl_stack.h (stack): Likewise.
   4819  1.1.1.20  mrg 	* testsuite/23_containers/queue/cmp_c++20.cc: New test.
   4820  1.1.1.20  mrg 	* testsuite/23_containers/stack/cmp_c++20.cc: New test.
   4821  1.1.1.20  mrg 
   4822  1.1.1.20  mrg 	* include/bits/unordered_map.h (unordered_map, unordered_multimap):
   4823  1.1.1.20  mrg 	Remove redundant operator!= for C++20.
   4824  1.1.1.20  mrg 	* include/bits/unordered_set.h (unordered_set, unordered_multiset):
   4825  1.1.1.20  mrg 	Likewise.
   4826  1.1.1.20  mrg 	* include/debug/unordered_map (unordered_map, unordered_multimap):
   4827  1.1.1.20  mrg 	Likewise.
   4828  1.1.1.20  mrg 	* include/debug/unordered_set (unordered_set, unordered_multiset):
   4829  1.1.1.20  mrg 	Likewise.
   4830  1.1.1.20  mrg 
   4831  1.1.1.20  mrg 	PR other/94629
   4832  1.1.1.20  mrg 	* include/debug/formatter.h (_Error_formatter::_Parameter): Fix
   4833  1.1.1.20  mrg 	redundant assignment in constructor.
   4834  1.1.1.20  mrg 
   4835  1.1.1.20  mrg 2020-04-18  Jonathan Wakely  <jwakely (a] redhat.com>
   4836  1.1.1.20  mrg 
   4837  1.1.1.20  mrg 	* include/std/chrono (duration, time_point): Define operator<=> and
   4838  1.1.1.20  mrg 	remove redundant operator!= for C++20.
   4839  1.1.1.20  mrg 	* testsuite/20_util/duration/comparison_operators/three_way.cc: New
   4840  1.1.1.20  mrg 	test.
   4841  1.1.1.20  mrg 	* testsuite/20_util/time_point/comparison_operators/three_way.cc: New
   4842  1.1.1.20  mrg 	test.
   4843  1.1.1.20  mrg 
   4844  1.1.1.20  mrg 	* testsuite/util/native_type/native_priority_queue.hpp: Use
   4845  1.1.1.20  mrg 	allocator_traits to rebind allocator.
   4846  1.1.1.20  mrg 
   4847  1.1.1.20  mrg 2020-04-17  Jonathan Wakely  <jwakely (a] redhat.com>
   4848  1.1.1.20  mrg 
   4849  1.1.1.20  mrg 	* include/bits/forward_list.h (forward_list): Define operator<=> and
   4850  1.1.1.20  mrg 	remove redundant comparison operators for C++20.
   4851  1.1.1.20  mrg 	* include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
   4852  1.1.1.20  mrg 	* include/bits/stl_deque.h (deque): Likewise.
   4853  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__normal_iterator): Likewise.
   4854  1.1.1.20  mrg 	* include/bits/stl_list.h (list): Likewise.
   4855  1.1.1.20  mrg 	* include/bits/stl_vector.h (vector): Likewise.
   4856  1.1.1.20  mrg 	* include/debug/deque (__gnu_debug::deque): Likewise.
   4857  1.1.1.20  mrg 	* include/debug/forward_list (__gnu_debug::forward_list): Likewise.
   4858  1.1.1.20  mrg 	* include/debug/list (__gnu_debug::list): Likewise.
   4859  1.1.1.20  mrg 	* include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
   4860  1.1.1.20  mrg 	Likewise.
   4861  1.1.1.20  mrg 	* include/debug/vector (__gnu_debug::vector): Likewise.
   4862  1.1.1.20  mrg 	* include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
   4863  1.1.1.20  mrg 	operator<=> for C++20.
   4864  1.1.1.20  mrg 	* testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
   4865  1.1.1.20  mrg 	* testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
   4866  1.1.1.20  mrg 	* testsuite/23_containers/list/cmp_c++20.cc: New test.
   4867  1.1.1.20  mrg 	* testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
   4868  1.1.1.20  mrg 	* testsuite/23_containers/vector/cmp_c++20.cc: New test.
   4869  1.1.1.20  mrg 
   4870  1.1.1.20  mrg 	* include/bits/basic_string.h (basic_string): Define operator<=> and
   4871  1.1.1.20  mrg 	remove redundant comparison operators for C++20.
   4872  1.1.1.20  mrg 	* include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
   4873  1.1.1.20  mrg 	Add comparison_category members.
   4874  1.1.1.20  mrg 	(__detail::__char_traits_cmp_cat): New helper to get comparison
   4875  1.1.1.20  mrg 	category from char traits class.
   4876  1.1.1.20  mrg 	* include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
   4877  1.1.1.20  mrg 	define for C++20.
   4878  1.1.1.20  mrg 	(sub_match): Define operator<=> and remove redundant comparison
   4879  1.1.1.20  mrg 	operators for C++20.
   4880  1.1.1.20  mrg 	(match_results): Remove redundant operator!= for C++20.
   4881  1.1.1.20  mrg 	* include/std/string_view (basic_string_view): Define operator<=> and
   4882  1.1.1.20  mrg 	remove redundant comparison operators for C++20.
   4883  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
   4884  1.1.1.20  mrg 	test.
   4885  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
   4886  1.1.1.20  mrg 	New test.
   4887  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operations/copy/char/
   4888  1.1.1.20  mrg 	constexpr.cc: Initialize variable.
   4889  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
   4890  1.1.1.20  mrg 	constexpr.cc: Likewise.
   4891  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
   4892  1.1.1.20  mrg 	dg-do directive and remove comments showing incorrect signatures.
   4893  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
   4894  1.1.1.20  mrg 	Likewise.
   4895  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
   4896  1.1.1.20  mrg 	New test.
   4897  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
   4898  1.1.1.20  mrg 	New test.
   4899  1.1.1.20  mrg 	* testsuite/28_regex/sub_match/compare_c++20.cc: New test.
   4900  1.1.1.20  mrg 
   4901  1.1.1.20  mrg 2020-04-16  Jonathan Wakely  <jwakely (a] redhat.com>
   4902  1.1.1.20  mrg 
   4903  1.1.1.20  mrg 	* testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
   4904  1.1.1.20  mrg 	name of unused parameter.
   4905  1.1.1.20  mrg 
   4906  1.1.1.20  mrg 2020-04-15  Jonathan Wakely  <jwakely (a] redhat.com>
   4907  1.1.1.20  mrg 
   4908  1.1.1.20  mrg 	* include/bits/fs_dir.h (file_status): Define operator== for C++20.
   4909  1.1.1.20  mrg 	(directory_entry): Define operator<=> and remove redundant comparison
   4910  1.1.1.20  mrg 	operators for C++20.
   4911  1.1.1.20  mrg 	* include/bits/fs_fwd.h (space_info): Define operator== for C++20.
   4912  1.1.1.20  mrg 	* include/bits/fs_path.h (path): Define operator<=> and remove
   4913  1.1.1.20  mrg 	redundant comparison operators for C++20.
   4914  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
   4915  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
   4916  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
   4917  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
   4918  1.1.1.20  mrg 
   4919  1.1.1.20  mrg 	* include/bits/allocator.h (operator!=): Do not define for C++20.
   4920  1.1.1.20  mrg 	* include/bits/locale_classes.h (operator!=): Likewise.
   4921  1.1.1.20  mrg 	* include/bits/std_function.h (operator==(nullptr_t, const function&))
   4922  1.1.1.20  mrg 	(operator!=(const function&, nullptr_t))
   4923  1.1.1.20  mrg 	(operator!=(nullptr_t, const function&)): Likewise.
   4924  1.1.1.20  mrg 	* include/ext/bitmap_allocator.h (operator!=): Likewise.
   4925  1.1.1.20  mrg 	* include/ext/debug_allocator.h (operator!=): Likewise.
   4926  1.1.1.20  mrg 	* include/ext/extptr_allocator.h (operator!=): Likewise.
   4927  1.1.1.20  mrg 	* include/ext/malloc_allocator.h (operator!=): Likewise.
   4928  1.1.1.20  mrg 	* include/ext/mt_allocator.h (operator!=): Likewise.
   4929  1.1.1.20  mrg 	* include/ext/new_allocator.h (operator!=): Likewise.
   4930  1.1.1.20  mrg 	* include/ext/pool_allocator.h (operator!=): Likewise.
   4931  1.1.1.20  mrg 	* include/ext/throw_allocator.h (operator!=): Likewise.
   4932  1.1.1.20  mrg 	* include/std/bitset (bitset::operator!=): Likewise.
   4933  1.1.1.20  mrg 	* include/std/memory_resource (operator!=): Likewise.
   4934  1.1.1.20  mrg 	* include/std/scoped_allocator (operator!=): Likewise.
   4935  1.1.1.20  mrg 
   4936  1.1.1.20  mrg 	* include/std/typeindex (operator<=>): Define for C++20.
   4937  1.1.1.20  mrg 	* testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
   4938  1.1.1.20  mrg 
   4939  1.1.1.20  mrg 2020-04-14  Jonathan Wakely  <jwakely (a] redhat.com>
   4940  1.1.1.20  mrg 
   4941  1.1.1.20  mrg 	* libsupc++/compare (compare_three_way): Fix constraint so that
   4942  1.1.1.20  mrg 	BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
   4943  1.1.1.20  mrg 	* testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
   4944  1.1.1.20  mrg 	New test.
   4945  1.1.1.20  mrg 
   4946  1.1.1.20  mrg 	PR libstdc++/94562
   4947  1.1.1.20  mrg 	* include/bits/shared_ptr.h (operator<=>): Define for C++20.
   4948  1.1.1.20  mrg 	* include/bits/shared_ptr_base.h (operator<=>): Likewise.
   4949  1.1.1.20  mrg 	* include/bits/unique_ptr.h (operator<=>): Add inline specifier.
   4950  1.1.1.20  mrg 	* testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
   4951  1.1.1.20  mrg 	* testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
   4952  1.1.1.20  mrg 	std::less<A*> to be used when comparing std::shared_ptr<A> objects in
   4953  1.1.1.20  mrg 	C++20.
   4954  1.1.1.20  mrg 
   4955  1.1.1.20  mrg 	PR libstdc++/94565
   4956  1.1.1.20  mrg 	* libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
   4957  1.1.1.20  mrg 	* testsuite/18_support/comparisons/categories/94565.cc: New test.
   4958  1.1.1.20  mrg 
   4959  1.1.1.20  mrg 2020-04-13  Iain Sandoe  <iain (a] sandoe.co.uk>
   4960  1.1.1.20  mrg 
   4961  1.1.1.20  mrg 	* include/std/coroutine: Update coroutines builtin define,
   4962  1.1.1.20  mrg 	per n4861.
   4963  1.1.1.20  mrg 
   4964  1.1.1.20  mrg 2020-04-09  Jonathan Wakely  <jwakely (a] redhat.com>
   4965  1.1.1.20  mrg 
   4966  1.1.1.20  mrg 	* libsupc++/compare (compare_three_way): Fix noexcept-specifier.
   4967  1.1.1.20  mrg 	(strong_order, weak_order, partial_order): Replace uses of <=> with
   4968  1.1.1.20  mrg 	compare_three_way function object (LWG 3324).
   4969  1.1.1.20  mrg 	* testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
   4970  1.1.1.20  mrg 	equality operator so that X satisfies three_way_comparable.
   4971  1.1.1.20  mrg 	* testsuite/18_support/comparisons/algorithms/strong_order.cc:
   4972  1.1.1.20  mrg 	Likewise.
   4973  1.1.1.20  mrg 	* testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
   4974  1.1.1.20  mrg 
   4975  1.1.1.20  mrg 	* include/bits/unique_ptr.h (operator<=>): Define for C++20.
   4976  1.1.1.20  mrg 	* testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
   4977  1.1.1.20  mrg 	* testsuite/20_util/default_delete/void_neg.cc: Likewise.
   4978  1.1.1.20  mrg 	* testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
   4979  1.1.1.20  mrg 	* testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
   4980  1.1.1.20  mrg 
   4981  1.1.1.20  mrg 2020-04-08  Jonathan Wakely  <jwakely (a] redhat.com>
   4982  1.1.1.20  mrg 
   4983  1.1.1.20  mrg 	* include/bits/slice_array.h (operator==(const slice&, const slice&)):
   4984  1.1.1.20  mrg 	Define for C++20.
   4985  1.1.1.20  mrg 	* include/std/complex (operator==(const T&, const complex<T>&))
   4986  1.1.1.20  mrg 	(operator!=(const complex<T>&, const complex<T>&))
   4987  1.1.1.20  mrg 	(operator!=(const complex<T>&, const T&))
   4988  1.1.1.20  mrg 	(operator!=(const T&, const complex<T>&)): Do not declare for C++20.
   4989  1.1.1.20  mrg 	* testsuite/26_numerics/slice/compare.cc: New test.
   4990  1.1.1.20  mrg 
   4991  1.1.1.20  mrg 	* include/std/charconv (to_chars_result, from_chars_result): Add
   4992  1.1.1.20  mrg 	defaulted equality comparisons for C++20.
   4993  1.1.1.20  mrg 	* testsuite/20_util/from_chars/compare.cc: New test.
   4994  1.1.1.20  mrg 	* testsuite/20_util/to_chars/compare.cc: New test.
   4995  1.1.1.20  mrg 
   4996  1.1.1.20  mrg 2020-04-07  Jonathan Wakely  <jwakely (a] redhat.com>
   4997  1.1.1.20  mrg 
   4998  1.1.1.20  mrg 	PR libstdc++/94520
   4999  1.1.1.20  mrg 	* include/std/charconv (__integer_to_chars_result_type)
   5000  1.1.1.20  mrg 	(__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
   5001  1.1.1.20  mrg 	allow use in C++14.
   5002  1.1.1.20  mrg 	* testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
   5003  1.1.1.20  mrg 	use of std::string_view with std::string.
   5004  1.1.1.20  mrg 	* testsuite/20_util/from_chars/2.cc: Likewise.
   5005  1.1.1.20  mrg 	* testsuite/20_util/to_chars/1.cc: Likewise.
   5006  1.1.1.20  mrg 	* testsuite/20_util/to_chars/2.cc: Likewise.
   5007  1.1.1.20  mrg 
   5008  1.1.1.20  mrg 2020-04-06  Jonathan Wakely  <jwakely (a] redhat.com>
   5009  1.1.1.20  mrg 
   5010  1.1.1.20  mrg 	PR libstdc++/94498
   5011  1.1.1.20  mrg 	* include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
   5012  1.1.1.20  mrg 	usable in constant expressions for C++20.
   5013  1.1.1.20  mrg 	(__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
   5014  1.1.1.20  mrg 	_GLIBCXX20_CONSTEXPR.
   5015  1.1.1.20  mrg 	(std::char_traits<char>, std::char_traits<wchar_t>)
   5016  1.1.1.20  mrg 	(std::char_traits<char8_t>): Make move, copy and assign usable in
   5017  1.1.1.20  mrg 	constant expressions for C++20.
   5018  1.1.1.20  mrg 	(std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
   5019  1.1.1.20  mrg 	and copy usable in constant expressions for C++20.
   5020  1.1.1.20  mrg 	* include/std/string_view (basic_string_view::copy): Add
   5021  1.1.1.20  mrg 	_GLIBCXX20_CONSTEXPR.
   5022  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operations/copy/char/
   5023  1.1.1.20  mrg 	constexpr.cc: New test.
   5024  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
   5025  1.1.1.20  mrg 	constexpr.cc: New test.
   5026  1.1.1.20  mrg 
   5027  1.1.1.20  mrg 2020-04-05  Gerald Pfeifer  <gerald (a] pfeifer.com>
   5028  1.1.1.20  mrg 
   5029  1.1.1.20  mrg 	* doc/xml/manual/appendix_contributing.xml: Refer to Git
   5030  1.1.1.20  mrg 	documentation instead of Subversion.  Switch to https.
   5031  1.1.1.20  mrg 	* doc/html/manual/appendix_contributing.html: Regenerate.
   5032  1.1.1.20  mrg 
   5033  1.1.1.20  mrg 2020-04-03  Jonathan Wakely  <jwakely (a] redhat.com>
   5034  1.1.1.20  mrg 
   5035  1.1.1.20  mrg 	PR libstdc++/93960
   5036  1.1.1.20  mrg 	* include/bits/ptr_traits.h (__to_address): Add special case for debug
   5037  1.1.1.20  mrg 	iterators, to avoid dereferenceable check.
   5038  1.1.1.20  mrg 	* testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
   5039  1.1.1.20  mrg 	* testsuite/20_util/to_address/debug.cc: New test.
   5040  1.1.1.20  mrg 
   5041  1.1.1.20  mrg 2020-04-01  Andrea Corallo  <andrea.corallo (a] arm.com>
   5042  1.1.1.20  mrg 
   5043  1.1.1.20  mrg 	* testsuite/experimental/net/execution_context/use_service.cc:
   5044  1.1.1.20  mrg 	Require pthread and gthreads.
   5045  1.1.1.20  mrg 
   5046  1.1.1.20  mrg 2020-04-01  Gerald Pfeifer  <gerald (a] pfeifer.com>
   5047  1.1.1.20  mrg 
   5048  1.1.1.20  mrg 	* doc/xml/manual/appendix_free.xml: Move "free books" list from
   5049  1.1.1.20  mrg 	fsf.org to gnu.org.
   5050  1.1.1.20  mrg 	* doc/html/manual/appendix_free.html: Regenerate.
   5051  1.1.1.20  mrg 
   5052  1.1.1.20  mrg 2020-03-31  Ville Voutilainen  <ville.voutilainen (a] gmail.com>
   5053  1.1.1.20  mrg 
   5054  1.1.1.20  mrg 	Library-side tests for parenthesized aggregate init
   5055  1.1.1.20  mrg 
   5056  1.1.1.20  mrg 	PR c++/92878
   5057  1.1.1.20  mrg 	PR c++/92947
   5058  1.1.1.20  mrg 
   5059  1.1.1.20  mrg 	* testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
   5060  1.1.1.20  mrg 	* testsuite/20_util/any/assign/92878_92947.cc: Likewise.
   5061  1.1.1.20  mrg 	* testsuite/20_util/any/cons/92878_92947.cc: Likewise.
   5062  1.1.1.20  mrg 	* testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
   5063  1.1.1.20  mrg 	* testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
   5064  1.1.1.20  mrg 	* testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
   5065  1.1.1.20  mrg 	* testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
   5066  1.1.1.20  mrg 	* testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
   5067  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
   5068  1.1.1.20  mrg 	Likewise.
   5069  1.1.1.20  mrg 	* testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
   5070  1.1.1.20  mrg 	* testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
   5071  1.1.1.20  mrg 	* testsuite/20_util/variant/92878_92947.cc: Likewise.
   5072  1.1.1.20  mrg 	* testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
   5073  1.1.1.20  mrg 	Likewise.
   5074  1.1.1.20  mrg 	* testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
   5075  1.1.1.20  mrg 	Likewise.
   5076  1.1.1.20  mrg 	* testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
   5077  1.1.1.20  mrg 	Likewise.
   5078  1.1.1.20  mrg 	* testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
   5079  1.1.1.20  mrg 	Likewise.
   5080  1.1.1.20  mrg 	* testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
   5081  1.1.1.20  mrg 	Likewise.
   5082  1.1.1.20  mrg 	* testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
   5083  1.1.1.20  mrg 	Likewise.
   5084  1.1.1.20  mrg 	* testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
   5085  1.1.1.20  mrg 	* testsuite/23_containers/queue/92878_92947.cc: Likewise.
   5086  1.1.1.20  mrg 	* testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
   5087  1.1.1.20  mrg 	Likewise.
   5088  1.1.1.20  mrg 	* testsuite/23_containers/stack/92878_92947.cc: Likewise.
   5089  1.1.1.20  mrg 	* testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
   5090  1.1.1.20  mrg 	Likewise.
   5091  1.1.1.20  mrg 	* testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
   5092  1.1.1.20  mrg 	Likewise.
   5093  1.1.1.20  mrg 	* testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
   5094  1.1.1.20  mrg 	Likewise.
   5095  1.1.1.20  mrg 	* testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
   5096  1.1.1.20  mrg 	Likewise.
   5097  1.1.1.20  mrg 	* testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
   5098  1.1.1.20  mrg 	Likewise.
   5099  1.1.1.20  mrg 
   5100  1.1.1.20  mrg 2020-03-28  Jonathan Wakely  <jwakely (a] redhat.com>
   5101  1.1.1.20  mrg 
   5102  1.1.1.20  mrg 	* testsuite/20_util/is_constructible/value-2.cc: Fix test to account
   5103  1.1.1.20  mrg 	for changes due to parenthesized aggregate-initialization in C++20.
   5104  1.1.1.20  mrg 	* testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
   5105  1.1.1.20  mrg 	with std::chrono::sys_time in C++20.
   5106  1.1.1.20  mrg 
   5107  1.1.1.20  mrg 	* include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
   5108  1.1.1.20  mrg 	to constrain C++20 versions of comparison operators. Fix backwards
   5109  1.1.1.20  mrg 	logic of relational operators.
   5110  1.1.1.20  mrg 	(move_iterator): Use requires-clause to constrain comparison operators
   5111  1.1.1.20  mrg 	in C++20. Do not declare non-standard same-type overloads for C++20.
   5112  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
   5113  1.1.1.20  mrg 	of comparisons and check using greedy_ops type.
   5114  1.1.1.20  mrg 	* testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
   5115  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
   5116  1.1.1.20  mrg 	main function from compile-only test.
   5117  1.1.1.20  mrg 	* testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
   5118  1.1.1.20  mrg 
   5119  1.1.1.20  mrg 2020-03-27  Jonathan Wakely  <jwakely (a] redhat.com>
   5120  1.1.1.20  mrg 
   5121  1.1.1.20  mrg 	* include/bits/range_cmp.h (__cpp_lib_ranges): Define.
   5122  1.1.1.20  mrg 	* include/bits/stl_iterator.h: Check value of __cpp_concepts so that
   5123  1.1.1.20  mrg 	C++20 concepts are required.
   5124  1.1.1.20  mrg 	* include/bits/stl_iterator_base_types.h: Likewise.
   5125  1.1.1.20  mrg 	* include/std/concepts: Likewise.
   5126  1.1.1.20  mrg 	* include/std/version: Likewise.
   5127  1.1.1.20  mrg 	* testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
   5128  1.1.1.20  mrg 	macro.
   5129  1.1.1.20  mrg 
   5130  1.1.1.20  mrg 	* include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
   5131  1.1.1.20  mrg 	(reverse_iterator::iterator_category): Define for C++20.
   5132  1.1.1.20  mrg 	(reverse_iterator): Define comparison operators correctly for C++20.
   5133  1.1.1.20  mrg 	(__normal_iterator): Add constraints to comparison operators for C++20.
   5134  1.1.1.20  mrg 	(move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
   5135  1.1.1.20  mrg 	overload for input iterators.
   5136  1.1.1.20  mrg 	(move_iterator): Add constraints to comparison operators for C++20.
   5137  1.1.1.20  mrg 	Define operator<=> for C++20.
   5138  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
   5139  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/move_only.cc: New test.
   5140  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
   5141  1.1.1.20  mrg 	* testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
   5142  1.1.1.20  mrg 
   5143  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (__detail::__decay_copy)
   5144  1.1.1.20  mrg 	(__detail::__member_begin, __detail::__adl_begin): Move here from
   5145  1.1.1.20  mrg 	<bits/range_access.h>.
   5146  1.1.1.20  mrg 	(__detail::__ranges_begin, __detail::__range_iter_t): Define.
   5147  1.1.1.20  mrg 	* bits/range_access.h (__cust_access::__decay_copy)
   5148  1.1.1.20  mrg 	(__cust_access::__member_begin, __cust_access::__adl_begin): Move to
   5149  1.1.1.20  mrg 	<bits/iterator_concepts.h>.
   5150  1.1.1.20  mrg 	(ranges::iterator_t): Use __detail::__range_iter_t.
   5151  1.1.1.20  mrg 	* include/bits/stl_iterator.h (back_insert_iterator): Simplify
   5152  1.1.1.20  mrg 	conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
   5153  1.1.1.20  mrg 	(front_insert_iterator): Likewise.
   5154  1.1.1.20  mrg 	(insert_iterator): Implement changes from P0896R4 for C++20.
   5155  1.1.1.20  mrg 	* testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
   5156  1.1.1.20  mrg 	* testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
   5157  1.1.1.20  mrg 	* testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
   5158  1.1.1.20  mrg 	for inclusion in synopsis_c++20.cc which expects different signatures
   5159  1.1.1.20  mrg 	for some function templates.
   5160  1.1.1.20  mrg 	* testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
   5161  1.1.1.20  mrg 
   5162  1.1.1.20  mrg 	* include/std/type_traits (__is_array_convertible): Move definition
   5163  1.1.1.20  mrg 	to immediately after is_convertible.
   5164  1.1.1.20  mrg 
   5165  1.1.1.20  mrg 2020-03-26  Jonathan Wakely  <jwakely (a] redhat.com>
   5166  1.1.1.20  mrg 
   5167  1.1.1.20  mrg 	* include/std/chrono (chrono::days, chrono::weeks, chrono::years)
   5168  1.1.1.20  mrg 	(chrono::months, chrono::sys_days, chrono::local_t)
   5169  1.1.1.20  mrg 	(chrono::local_time, chrono::local_seconds, chrono::local_days):
   5170  1.1.1.20  mrg 	Define for C++20.
   5171  1.1.1.20  mrg 	(chrono::time_point): Add missing static assert.
   5172  1.1.1.20  mrg 	* testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
   5173  1.1.1.20  mrg 	* testsuite/std/time/clock/file/overview.cc: New test.
   5174  1.1.1.20  mrg 	* testsuite/std/time/clock/file/members.cc: New test.
   5175  1.1.1.20  mrg 	* testsuite/std/time/syn_c++20.cc: New test.
   5176  1.1.1.20  mrg 
   5177  1.1.1.20  mrg 2020-03-25  Mike Crowe  <mac (a] mcrowe.com>
   5178  1.1.1.20  mrg 
   5179  1.1.1.20  mrg 	* testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
   5180  1.1.1.20  mrg 	test.
   5181  1.1.1.20  mrg 	* testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
   5182  1.1.1.20  mrg 	test.
   5183  1.1.1.20  mrg 
   5184  1.1.1.20  mrg 2020-03-25  Jonathan Wakely  <jwakely (a] redhat.com>
   5185  1.1.1.19  mrg 
   5186  1.1.1.20  mrg 	* include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
   5187  1.1.1.20  mrg 	* include/std/chrono (filesystem::__file_clock): Here.
   5188  1.1.1.20  mrg 	(filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
   5189  1.1.1.20  mrg 	Define public member functions for C++20.
   5190  1.1.1.20  mrg 	(is_clock, is_clock_v): Define traits for C++20.
   5191  1.1.1.20  mrg 	* include/std/condition_variable (condition_variable::wait_until): Add
   5192  1.1.1.20  mrg 	check for valid clock.
   5193  1.1.1.20  mrg 	* include/std/future (_State_baseV2::wait_until): Likewise.
   5194  1.1.1.20  mrg 	* include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
   5195  1.1.1.20  mrg 	* include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
   5196  1.1.1.20  mrg 	Likewise.
   5197  1.1.1.20  mrg 	* include/std/thread (this_thread::sleep_until): Likewise.
   5198  1.1.1.20  mrg 	* testsuite/30_threads/condition_variable/members/2.cc: Qualify
   5199  1.1.1.20  mrg 	slow_clock with new namespace.
   5200  1.1.1.20  mrg 	* testsuite/30_threads/condition_variable/members/clock_neg.cc: New
   5201  1.1.1.20  mrg 	test.
   5202  1.1.1.20  mrg 	* testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
   5203  1.1.1.20  mrg 	New test.
   5204  1.1.1.20  mrg 	* testsuite/30_threads/future/members/clock_neg.cc: New test.
   5205  1.1.1.20  mrg 	* testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
   5206  1.1.1.20  mrg 	Qualify slow_clock with new namespace.
   5207  1.1.1.20  mrg 	* testsuite/30_threads/recursive_timed_mutex/try_lock_until/
   5208  1.1.1.20  mrg 	clock_neg.cc: New test.
   5209  1.1.1.20  mrg 	* testsuite/30_threads/shared_future/members/clock_neg.cc: New
   5210  1.1.1.20  mrg 	test.
   5211  1.1.1.20  mrg 	* testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
   5212  1.1.1.20  mrg 	* testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
   5213  1.1.1.20  mrg 	New test.
   5214  1.1.1.20  mrg 	* testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
   5215  1.1.1.20  mrg 	slow_clock with new namespace.
   5216  1.1.1.20  mrg 	* testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
   5217  1.1.1.20  mrg 	* testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
   5218  1.1.1.20  mrg 	test.
   5219  1.1.1.20  mrg 	* testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
   5220  1.1.1.20  mrg 	* testsuite/std/time/traits/is_clock.cc: New test.
   5221  1.1.1.20  mrg 	* testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
   5222  1.1.1.20  mrg 	namespace.
   5223  1.1.1.20  mrg 
   5224  1.1.1.20  mrg 2020-03-21  Jonathan Wakely  <jwakely (a] redhat.com>
   5225  1.1.1.20  mrg 
   5226  1.1.1.20  mrg 	PR libstdc++/93245
   5227  1.1.1.20  mrg 	* include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
   5228  1.1.1.20  mrg 	* testsuite/experimental/filesystem/path/generic/generic_string.cc:
   5229  1.1.1.20  mrg 	Improve test coverage.
   5230  1.1.1.20  mrg 
   5231  1.1.1.20  mrg 	PR libstdc++/94242
   5232  1.1.1.20  mrg 	* include/bits/fs_path.h (path::_S_str_convert): Replace first
   5233  1.1.1.20  mrg 	parameter with basic_string_view so that strings with different
   5234  1.1.1.20  mrg 	allocators can be accepted.
   5235  1.1.1.20  mrg 	(path::generic_string<C,T,A>()): Use basic_string object that uses the
   5236  1.1.1.20  mrg 	right allocator type.
   5237  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/94242.cc: New test.
   5238  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
   5239  1.1.1.20  mrg 	test coverage.
   5240  1.1.1.20  mrg 
   5241  1.1.1.20  mrg 2020-03-18  Jonathan Wakely  <jwakely (a] redhat.com>
   5242  1.1.1.20  mrg 
   5243  1.1.1.20  mrg 	PR libstdc++/94033
   5244  1.1.1.20  mrg 	* include/std/type_traits (__is_nt_default_constructible_atom): Remove.
   5245  1.1.1.20  mrg 	(__is_nt_default_constructible_impl): Remove.
   5246  1.1.1.20  mrg 	(__is_nothrow_default_constructible_impl): Remove.
   5247  1.1.1.20  mrg 	(__is_nt_constructible_impl): Add bool template parameter. Adjust
   5248  1.1.1.20  mrg 	partial specializations.
   5249  1.1.1.20  mrg 	(__is_nothrow_constructible_impl): Replace class template with alias
   5250  1.1.1.20  mrg 	template.
   5251  1.1.1.20  mrg 	(is_nothrow_default_constructible): Derive from alias template
   5252  1.1.1.20  mrg 	__is_nothrow_constructible_impl instead of
   5253  1.1.1.20  mrg 	__is_nothrow_default_constructible_impl.
   5254  1.1.1.20  mrg 	* testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
   5255  1.1.1.20  mrg 
   5256  1.1.1.20  mrg 	* include/std/stop_token (stop_token::_Stop_state_ref): Define
   5257  1.1.1.20  mrg 	comparison operators explicitly if the compiler won't synthesize them.
   5258  1.1.1.20  mrg 
   5259  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
   5260  1.1.1.20  mrg 	__cpp_lib_concepts before using iter_reference_t.
   5261  1.1.1.20  mrg 	* include/bits/stream_iterator.h (istream_iterator): Check
   5262  1.1.1.20  mrg 	__cpp_lib_concepts before using default_sentinel_t.
   5263  1.1.1.20  mrg 	* include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
   5264  1.1.1.20  mrg 
   5265  1.1.1.20  mrg 	PR libstdc++/94203
   5266  1.1.1.20  mrg 	* include/experimental/executor (executor::executor(Executor)): Call
   5267  1.1.1.20  mrg 	make_shared directly instead of _M_create. Create _Tgt1 object.
   5268  1.1.1.20  mrg 	(executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
   5269  1.1.1.20  mrg 	Call allocate_shared directly instead of _M_create. Create _Tgt2
   5270  1.1.1.20  mrg 	object.
   5271  1.1.1.20  mrg 	(executor::target_type): Add cast needed for new _Tgt interface.
   5272  1.1.1.20  mrg 	(executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
   5273  1.1.1.20  mrg 	(executor::_Tgt): Define the same interface whether RTTI is enabled or
   5274  1.1.1.20  mrg 	not.
   5275  1.1.1.20  mrg 	(executor::_Tgt::target_type, executor::_Tgt::target): Do not use
   5276  1.1.1.20  mrg 	std::type_info in the interface.
   5277  1.1.1.20  mrg 	(executor::_Tgt::_M_func): Add data member.
   5278  1.1.1.20  mrg 	(executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
   5279  1.1.1.20  mrg 	(executor::_Tgt1::_S_func): Define function to access target without
   5280  1.1.1.20  mrg 	depending on RTTI.
   5281  1.1.1.20  mrg 	(executor::_M_create): Remove.
   5282  1.1.1.20  mrg 	(operator==, operator!=): Simplify comparisons for executor.
   5283  1.1.1.20  mrg 	* include/experimental/socket (is_error_code_enum<socket_errc>):
   5284  1.1.1.20  mrg 	Define specialization before use.
   5285  1.1.1.20  mrg 	* testsuite/experimental/net/executor/1.cc: New test.
   5286  1.1.1.20  mrg 
   5287  1.1.1.20  mrg 2020-03-16  Jonathan Wakely  <jwakely (a] redhat.com>
   5288  1.1.1.20  mrg 
   5289  1.1.1.20  mrg 	PR libstdc++/94199
   5290  1.1.1.20  mrg 	* include/experimental/executor (service_already_exists): Add default
   5291  1.1.1.20  mrg 	constructor. Declare make_service to be a friend.
   5292  1.1.1.20  mrg 	* testsuite/experimental/net/execution_context/make_service.cc: New
   5293  1.1.1.20  mrg 	test.
   5294  1.1.1.19  mrg 
   5295  1.1.1.20  mrg 2020-03-12  Jonathan Wakely  <jwakely (a] redhat.com>
   5296  1.1.1.19  mrg 
   5297  1.1.1.20  mrg 	* testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
   5298  1.1.1.20  mrg 	a null pointer to functions with nonnull(1) attribute.
   5299  1.1.1.20  mrg 
   5300  1.1.1.20  mrg 2020-03-11  Patrick Palka  <ppalka (a] redhat.com>
   5301  1.1.1.20  mrg 
   5302  1.1.1.20  mrg 	* include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
   5303  1.1.1.20  mrg 	'address' -> 'std::__addressof'.
   5304  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
   5305  1.1.1.20  mrg 	a non-forward input_range.
   5306  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
   5307  1.1.1.20  mrg 	default constructor protected instead of deleted, like with
   5308  1.1.1.20  mrg 	input_iterator_wrapper.
   5309  1.1.1.20  mrg 	(test_range::iterator): Add comment explaining that this type is used
   5310  1.1.1.20  mrg 	only when the underlying wrapper is input_iterator_wrapper or
   5311  1.1.1.20  mrg 	output_iterator_wrapper.  Remove delegating defaulted constructor so
   5312  1.1.1.20  mrg 	that the inherited default constructor is used instead.
   5313  1.1.1.20  mrg 
   5314  1.1.1.20  mrg 	LWG 3286 ranges::size is not required to be valid after a call to
   5315  1.1.1.20  mrg 	ranges::begin on an input range
   5316  1.1.1.20  mrg 	* include/std/ranges (subrange::subrange): Split single-argument
   5317  1.1.1.20  mrg 	constructor into two, one constrained by _S_store_size and another by
   5318  1.1.1.20  mrg 	!_S_store_size.
   5319  1.1.1.20  mrg 	(take_view::begin): Call size() before calling ranges::begin(_M_base).
   5320  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/lwg3286.cc: New test.
   5321  1.1.1.20  mrg 	* testsuite/std/ranges/subrange/lwg3286.cc: New test.
   5322  1.1.1.20  mrg 
   5323  1.1.1.20  mrg 2020-03-10  Jonathan Wakely  <jwakely (a] redhat.com>
   5324  1.1.1.20  mrg 
   5325  1.1.1.20  mrg 	* include/std/ranges (split_view::_OuterIter::__at_end): Use __current
   5326  1.1.1.20  mrg 	instead of _M_current.
   5327  1.1.1.20  mrg 	(split_view::_OuterIter::operator++): Likewise.
   5328  1.1.1.20  mrg 
   5329  1.1.1.20  mrg 	* include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
   5330  1.1.1.20  mrg 	(transform_view::_Iterator::operator*): Add noexcept-specifier.
   5331  1.1.1.20  mrg 	(transform_view::_Iterator::iter_move): Inline __iter_move body here.
   5332  1.1.1.20  mrg 	(split_view::_OuterIter::__current): Add noexcept.
   5333  1.1.1.20  mrg 	(split_view::_InnerIter::__iter_swap): Remove.
   5334  1.1.1.20  mrg 	(split_view::_InnerIter::__iter_move): Remove.
   5335  1.1.1.20  mrg 	(split_view::_InnerIter::_M_i_current): New accessors.
   5336  1.1.1.20  mrg 	(split_view::_InnerIter::__at_end): Use _M_i_current().
   5337  1.1.1.20  mrg 	(split_view::_InnerIter::operator*): Likewise.
   5338  1.1.1.20  mrg 	(split_view::_InnerIter::operator++): Likewise.
   5339  1.1.1.20  mrg 	(iter_move(const _InnerIter&)): Likewise.
   5340  1.1.1.20  mrg 	(iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
   5341  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
   5342  1.1.1.20  mrg 	for iter_move and iter_swap on split_view's inner iterator.
   5343  1.1.1.20  mrg 
   5344  1.1.1.20  mrg 	PR c++/94117
   5345  1.1.1.20  mrg 	* include/std/ranges (ranges::transform_view::_Iterator::iter_move):
   5346  1.1.1.20  mrg 	Change expression in noexcept-specifier to match function body.
   5347  1.1.1.20  mrg 
   5348  1.1.1.20  mrg 	* testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
   5349  1.1.1.20  mrg 	comment explaining multiple dg-do directives.
   5350  1.1.1.20  mrg 	* testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
   5351  1.1.1.20  mrg 	so test is run as well as compiled.
   5352  1.1.1.20  mrg 
   5353  1.1.1.20  mrg 2020-03-09  Jonathan Wakely  <jwakely (a] redhat.com>
   5354  1.1.1.20  mrg 
   5355  1.1.1.20  mrg 	PR libstdc++/94063
   5356  1.1.1.20  mrg 	* src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
   5357  1.1.1.20  mrg 	handle concatenations that change the type of the first component.
   5358  1.1.1.20  mrg 	(path::operator+=(basic_string_view<value_type>)): Likewise.
   5359  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/concat/94063.cc: New test.
   5360  1.1.1.20  mrg 
   5361  1.1.1.20  mrg 2020-03-06  Patrick Palka  <ppalka (a] redhat.com>
   5362  1.1.1.20  mrg 
   5363  1.1.1.20  mrg 	* include/std/ranges (join_view::_Sentinel<_Const>): Befriend
   5364  1.1.1.20  mrg 	join_view::_Sentinel<!_Const>.
   5365  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/join.cc: Augment test.
   5366  1.1.1.20  mrg 
   5367  1.1.1.20  mrg 	PR libstdc++/93978
   5368  1.1.1.20  mrg 	* include/bits/range_access.h (__cust_access::_Empty::operator()):
   5369  1.1.1.20  mrg 	Declare return type to be bool instead of auto.
   5370  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/93978.cc: New test.
   5371  1.1.1.20  mrg 
   5372  1.1.1.20  mrg 2020-03-06  Jonathan Wakely  <jwakely (a] redhat.com>
   5373  1.1.1.20  mrg 
   5374  1.1.1.20  mrg 	PR libstdc++/94069
   5375  1.1.1.20  mrg 	* include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
   5376  1.1.1.20  mrg 	(__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
   5377  1.1.1.20  mrg 	second argument to __glibcxx_rwlock_init.
   5378  1.1.1.20  mrg 	* testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
   5379  1.1.1.20  mrg 
   5380  1.1.1.20  mrg 	PR libstdc++/93244
   5381  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
   5382  1.1.1.20  mrg 	test to not fail due to PR 94063.
   5383  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
   5384  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
   5385  1.1.1.20  mrg 
   5386  1.1.1.20  mrg 2020-03-06  Andreas Krebbel  <krebbel (a] linux.ibm.com>
   5387  1.1.1.20  mrg 
   5388  1.1.1.20  mrg 	* src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
   5389  1.1.1.20  mrg 	would match ENOSYS.
   5390  1.1.1.20  mrg 
   5391  1.1.1.20  mrg 2020-03-05  Jonathan Wakely  <jwakely (a] redhat.com>
   5392  1.1.1.19  mrg 
   5393  1.1.1.20  mrg 	* testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
   5394  1.1.1.20  mrg 	* testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
   5395  1.1.1.20  mrg 	* testsuite/experimental/filesystem/operations/copy.cc: Likewise.
   5396  1.1.1.20  mrg 	* testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
   5397  1.1.1.20  mrg 	for return value, and in comparison.
   5398  1.1.1.20  mrg 	* testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
   5399  1.1.1.20  mrg 
   5400  1.1.1.20  mrg 	PR libstdc++/94051
   5401  1.1.1.20  mrg 	* include/std/string_view: Include <bits/ostream_insert.h>.
   5402  1.1.1.20  mrg 	* testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
   5403  1.1.1.20  mrg 
   5404  1.1.1.20  mrg 2020-03-04  Jonathan Wakely  <jwakely (a] redhat.com>
   5405  1.1.1.20  mrg 
   5406  1.1.1.20  mrg 	* include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
   5407  1.1.1.20  mrg 
   5408  1.1.1.20  mrg 2020-03-04  Patrick Palka  <ppalka (a] redhat.com>
   5409  1.1.1.20  mrg 
   5410  1.1.1.20  mrg 	PR libstdc++/94017
   5411  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
   5412  1.1.1.20  mrg 	condition for when to use memset, making sure to additionally check that
   5413  1.1.1.20  mrg 	the output pointer's value type is a non-volatile byte type.  Instead of
   5414  1.1.1.20  mrg 	requiring that the fill type is a byte type, just require that it's an
   5415  1.1.1.20  mrg 	integral type.
   5416  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
   5417  1.1.1.20  mrg 	New test.
   5418  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
   5419  1.1.1.19  mrg 	New test.
   5420  1.1.1.20  mrg 	* testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
   5421  1.1.1.20  mrg 	blocked by PR 94017.
   5422  1.1.1.20  mrg 	* testsuite/25_algorithms/fill/94017.cc: New test.
   5423  1.1.1.20  mrg 	* testsuite/25_algorithms/fill_n/94017.cc: New test.
   5424  1.1.1.20  mrg 
   5425  1.1.1.20  mrg 	LWG 3355 The memory algorithms should support move-only input iterators
   5426  1.1.1.20  mrg 	introduced by P1207
   5427  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h
   5428  1.1.1.20  mrg 	(__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
   5429  1.1.1.20  mrg 	to copy __ifirst, which could be a move-only input iterator.  Use
   5430  1.1.1.20  mrg 	operator- instead of ranges::distance to compute distance from a sized
   5431  1.1.1.20  mrg 	sentinel.
   5432  1.1.1.20  mrg 	(__uninitialized_copy_n_fn::operator()): Likewise.
   5433  1.1.1.20  mrg 	(__uninitialized_move_fn::operator()): Likewise.
   5434  1.1.1.20  mrg 	(__uninitialized_move_n_fn::operator()): Likewise.
   5435  1.1.1.20  mrg 	(__uninitialized_destroy_fn::operator()): Use std::move to avoid
   5436  1.1.1.20  mrg 	attempting to copy __first.
   5437  1.1.1.20  mrg 	(__uninitialized_destroy_n_fn::operator()): Likewise.
   5438  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
   5439  1.1.1.20  mrg 	Augment test.
   5440  1.1.1.20  mrg 	* .../specialized_algorithms/uninitialized_copy/constrained.cc:
   5441  1.1.1.20  mrg 	Likewise.
   5442  1.1.1.20  mrg 	* .../specialized_algorithms/uninitialized_move/constrained.cc:
   5443  1.1.1.20  mrg 	Likewise.
   5444  1.1.1.20  mrg 
   5445  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
   5446  1.1.1.20  mrg 	protected instead of private.
   5447  1.1.1.20  mrg 	(test_sized_range_sized_sent): New.
   5448  1.1.1.20  mrg 
   5449  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
   5450  1.1.1.20  mrg 	New testsuite iterator.
   5451  1.1.1.20  mrg 	* testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
   5452  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
   5453  1.1.1.20  mrg 
   5454  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h
   5455  1.1.1.20  mrg 	(uninitialized_copy_fn::operator()): Pass a reference type as the first
   5456  1.1.1.20  mrg 	argument to is_nothrow_assignable_v.
   5457  1.1.1.20  mrg 	(uninitialized_copy_fn::operator()): Likewise.
   5458  1.1.1.20  mrg 	(uninitialized_move_fn::operator()): Likewise.  Return an in_out_result
   5459  1.1.1.20  mrg 	with the input iterator stripped of its move_iterator.
   5460  1.1.1.20  mrg 	(uninitialized_move_n_fn::operator()): Likewise.
   5461  1.1.1.20  mrg 	(uninitialized_fill_fn::operator()): Pass a reference type as the first
   5462  1.1.1.20  mrg 	argument to is_nothrow_assignable_v.
   5463  1.1.1.20  mrg 	(uninitialized_fill_n_fn::operator()): Likewise.
   5464  1.1.1.20  mrg 
   5465  1.1.1.20  mrg 2020-03-03  Jonathan Wakely  <jwakely (a] redhat.com>
   5466  1.1.1.20  mrg 
   5467  1.1.1.20  mrg 	PR libstdc++/94013
   5468  1.1.1.20  mrg 	* include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
   5469  1.1.1.20  mrg 	traits to control when to use memmove and memcmp optimizations.
   5470  1.1.1.20  mrg 	(__is_nonvolatile_trivially_copyable): New helper trait.
   5471  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
   5472  1.1.1.20  mrg 	use memcmp optimization with volatile data.
   5473  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
   5474  1.1.1.20  mrg 	(__copy_or_move, __copy_or_move_backward): Use __memcpyable.
   5475  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
   5476  1.1.1.20  mrg 	(__copy_move_backward_a2): Likewise.
   5477  1.1.1.20  mrg 	(__equal_aux1): Use __memcmpable.
   5478  1.1.1.20  mrg 	(__lexicographical_compare_aux): Do not use memcmp optimization with
   5479  1.1.1.20  mrg 	volatile data.
   5480  1.1.1.20  mrg 	* testsuite/25_algorithms/copy/94013.cc: New test.
   5481  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_backward/94013.cc: New test.
   5482  1.1.1.20  mrg 	* testsuite/25_algorithms/equal/94013.cc: New test.
   5483  1.1.1.20  mrg 	* testsuite/25_algorithms/fill/94013.cc: New test.
   5484  1.1.1.20  mrg 	* testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
   5485  1.1.1.20  mrg 	* testsuite/25_algorithms/move/94013.cc: New test.
   5486  1.1.1.20  mrg 	* testsuite/25_algorithms/move_backward/94013.cc: New test.
   5487  1.1.1.20  mrg 
   5488  1.1.1.20  mrg 	* include/bits/stl_algobase.h (lexicographical_compare_three_way):
   5489  1.1.1.20  mrg 	Avoid redundant iterator comparisons (LWG 3410).
   5490  1.1.1.20  mrg 
   5491  1.1.1.20  mrg 2020-03-02  Jonathan Wakely  <jwakely (a] redhat.com>
   5492  1.1.1.20  mrg 
   5493  1.1.1.20  mrg 	PR libstdc++/93972
   5494  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__memcmp): Allow pointer types to
   5495  1.1.1.20  mrg 	differ.
   5496  1.1.1.20  mrg 	* testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
   5497  1.1.1.20  mrg 
   5498  1.1.1.20  mrg 	* include/std/ranges (__detail::__maybe_empty_t): Rename to
   5499  1.1.1.20  mrg 	__maybe_present_t.
   5500  1.1.1.20  mrg 	(__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
   5501  1.1.1.19  mrg 
   5502  1.1.1.20  mrg 	* include/bits/ranges_algo.h (shift_right): Add 'typename' to
   5503  1.1.1.20  mrg 	dependent type.
   5504  1.1.1.19  mrg 
   5505  1.1.1.20  mrg 2020-03-01  H.J. Lu  <hongjiu.lu (a] intel.com>
   5506  1.1.1.20  mrg 
   5507  1.1.1.20  mrg 	* config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
   5508  1.1.1.20  mrg 
   5509  1.1.1.20  mrg 2020-02-29  John David Anglin  <danglin (a] gcc.gnu.org>
   5510  1.1.1.20  mrg 
   5511  1.1.1.20  mrg 	* testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
   5512  1.1.1.19  mrg 	* testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
   5513  1.1.1.19  mrg 	* testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
   5514  1.1.1.19  mrg 	* testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
   5515  1.1.1.19  mrg 	* testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
   5516  1.1.1.19  mrg 
   5517  1.1.1.20  mrg 	* testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
   5518  1.1.1.20  mrg 	Add libatomic option.
   5519  1.1.1.20  mrg 	* testsuite/30_threads/jthread/jthread.cc: Likewise.
   5520  1.1.1.20  mrg 
   5521  1.1.1.20  mrg 2020-02-29  Franois Dumont  <fdumont (a] gcc.gnu.org>
   5522  1.1.1.20  mrg 
   5523  1.1.1.20  mrg 	* include/bits/stl_algo.h
   5524  1.1.1.20  mrg 	(__find_if, __count_if, __is_permutation, std::is_permutation): Move...
   5525  1.1.1.20  mrg 	* include/bits/stl_algobase.h: ...here.
   5526  1.1.1.20  mrg 	* include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
   5527  1.1.1.20  mrg 
   5528  1.1.1.20  mrg 2020-02-29  John David Anglin  <danglin (a] gcc.gnu.org>
   5529  1.1.1.19  mrg 
   5530  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
   5531  1.1.1.20  mrg 	option.
   5532  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
   5533  1.1.1.20  mrg 	Likewise.
   5534  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
   5535  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
   5536  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
   5537  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_source.cc: Likewise.
   5538  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
   5539  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_token.cc: Likewise.
   5540  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
   5541  1.1.1.20  mrg 	Likewise.
   5542  1.1.1.19  mrg 
   5543  1.1.1.20  mrg 	PR libstdc++/92906
   5544  1.1.1.20  mrg 	* config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
   5545  1.1.1.19  mrg 
   5546  1.1.1.20  mrg 2020-02-28  Patrick Palka  <ppalka (a] redhat.com>
   5547  1.1.1.19  mrg 
   5548  1.1.1.20  mrg 	PR libstdc++/93972
   5549  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
   5550  1.1.1.20  mrg 	Fix condition for when to use memcmp, making it consistent with the
   5551  1.1.1.20  mrg 	corresponding condition used in std::lexicographical_compare.
   5552  1.1.1.20  mrg 	* testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
   5553  1.1.1.20  mrg 
   5554  1.1.1.20  mrg 	* testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
   5555  1.1.1.20  mrg 	functions introduced in C++11, C++17 and C++2a.  Add 'constexpr' to
   5556  1.1.1.20  mrg 	existing signatures for C++2a.
   5557  1.1.1.20  mrg 
   5558  1.1.1.20  mrg 2020-02-28  Jonathan Wakely  <jwakely (a] redhat.com>
   5559  1.1.1.20  mrg 
   5560  1.1.1.20  mrg 	* testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
   5561  1.1.1.20  mrg 	test instead of just compiling it.
   5562  1.1.1.20  mrg 
   5563  1.1.1.20  mrg 2020-02-28  Patrick Palka  <ppalka (a] redhat.com>
   5564  1.1.1.20  mrg 
   5565  1.1.1.20  mrg 	* include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
   5566  1.1.1.20  mrg 	whenever the underlying range models common_range.
   5567  1.1.1.20  mrg 
   5568  1.1.1.20  mrg 	* include/std/ranges (__detail::_CachedPosition): New struct.
   5569  1.1.1.20  mrg 	(views::filter_view::_S_needs_cached_begin): New member variable.
   5570  1.1.1.20  mrg 	(views::filter_view::_M_cached_begin): New member variable.
   5571  1.1.1.20  mrg 	(views::filter_view::begin): Use _M_cached_begin to cache its
   5572  1.1.1.20  mrg 	result.
   5573  1.1.1.20  mrg 	(views::drop_view::_S_needs_cached_begin): New static member variable.
   5574  1.1.1.20  mrg 	(views::drop_view::_M_cached_begin): New member variable.
   5575  1.1.1.20  mrg 	(views::drop_view::begin): Use _M_cached_begin to cache its result
   5576  1.1.1.20  mrg 	when _S_needs_cached_begin.
   5577  1.1.1.20  mrg 	(views::drop_while_view::_M_cached_begin): New member variable.
   5578  1.1.1.20  mrg 	(views::drop_while_view::begin): Use _M_cached_begin to cache its
   5579  1.1.1.20  mrg 	result.
   5580  1.1.1.20  mrg 	(views::reverse_view::_S_needs_cached_begin): New static member
   5581  1.1.1.20  mrg 	variable.
   5582  1.1.1.20  mrg 	(views::reverse_view::_M_cached_begin): New member variable.
   5583  1.1.1.20  mrg 	(views::reverse_view::begin): Use _M_cached_begin to cache its result
   5584  1.1.1.20  mrg 	when _S_needs_cached_begin.
   5585  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
   5586  1.1.1.20  mrg 	drop_view::begin caches its result.
   5587  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
   5588  1.1.1.20  mrg 	that drop_while_view::begin caches its result.
   5589  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
   5590  1.1.1.20  mrg 	filter_view::begin caches its result.
   5591  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
   5592  1.1.1.20  mrg 	reverse_view::begin caches its result.
   5593  1.1.1.20  mrg 
   5594  1.1.1.20  mrg 2020-02-28  Jonathan Wakely  <jwakely (a] redhat.com>
   5595  1.1.1.20  mrg 
   5596  1.1.1.20  mrg 	* testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
   5597  1.1.1.20  mrg 	filesystems that silently truncate timestamps.
   5598  1.1.1.20  mrg 	* testsuite/experimental/filesystem/operations/last_write_time.cc:
   5599  1.1.1.20  mrg 	Likewise.
   5600  1.1.1.20  mrg 
   5601  1.1.1.20  mrg 	* testsuite/21_strings/basic_string/cons/char/1.cc: Disable
   5602  1.1.1.20  mrg 	-Wstringop-overflow warnings.
   5603  1.1.1.20  mrg 
   5604  1.1.1.20  mrg 2020-02-27  Jonathan Wakely  <jwakely (a] redhat.com>
   5605  1.1.1.20  mrg 
   5606  1.1.1.20  mrg 	* testsuite/lib/libstdc++.exp (v3_target_compile): Add
   5607  1.1.1.20  mrg 	-fdiagnostics-urls=never to options.
   5608  1.1.1.20  mrg 
   5609  1.1.1.20  mrg 2020-02-27  Patrick Palka  <ppalka (a] redhat.com>
   5610  1.1.1.20  mrg 
   5611  1.1.1.20  mrg 	* include/std/ranges (transform_view::_Iterator<_Const>): Befriend
   5612  1.1.1.20  mrg 	_Iterator<!_Const>.
   5613  1.1.1.20  mrg 	(transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
   5614  1.1.1.20  mrg 	(take_view::_Sentinel<_Const>): Likewise.
   5615  1.1.1.20  mrg 	(take_while_view::_Sentinel<_Const>): Likewise.
   5616  1.1.1.20  mrg 	(split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
   5617  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split.cc: Augment test.
   5618  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/take.cc: Augment test.
   5619  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/take_while.cc: Augment test.
   5620  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/transform.cc: Augment test.
   5621  1.1.1.20  mrg 
   5622  1.1.1.20  mrg 	* testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
   5623  1.1.1.20  mrg 	base() of a vector<>::iterator is a pointer.
   5624  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
   5625  1.1.1.20  mrg 	* testsuite/25_algorithms/move/constrained.cc: Likewise.
   5626  1.1.1.20  mrg 	* testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
   5627  1.1.1.20  mrg 	* testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
   5628  1.1.1.20  mrg 	instead of &foo[0].
   5629  1.1.1.20  mrg 	* testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
   5630  1.1.1.20  mrg 	* testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
   5631  1.1.1.20  mrg 	* testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
   5632  1.1.1.20  mrg 	* testsuite/25_algorithms/sort/constrained.cc: Likewise.
   5633  1.1.1.20  mrg 	* testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
   5634  1.1.1.20  mrg 
   5635  1.1.1.20  mrg 2020-02-27  Jonathan Wakely  <jwakely (a] redhat.com>
   5636  1.1.1.20  mrg 
   5637  1.1.1.20  mrg 	* include/debug/array (operator<=>): Define for C++20.
   5638  1.1.1.20  mrg 	* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
   5639  1.1.1.20  mrg 	Adjust dg-error line numbers.
   5640  1.1.1.20  mrg 	* testsuite/23_containers/array/tuple_interface/
   5641  1.1.1.20  mrg 	tuple_element_debug_neg.cc: Likewise.
   5642  1.1.1.20  mrg 
   5643  1.1.1.20  mrg 	* testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
   5644  1.1.1.20  mrg 	defining _GLIBCXX_ASSERTIONS.
   5645  1.1.1.20  mrg 	* testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
   5646  1.1.1.20  mrg 	* testsuite/23_containers/span/first_assert_neg.cc: Likewise.
   5647  1.1.1.20  mrg 	* testsuite/23_containers/span/front_assert_neg.cc: Likewise.
   5648  1.1.1.20  mrg 	* testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
   5649  1.1.1.20  mrg 	* testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
   5650  1.1.1.20  mrg 	* testsuite/23_containers/span/last_assert_neg.cc: Likewise.
   5651  1.1.1.20  mrg 	* testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
   5652  1.1.1.20  mrg 	* testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
   5653  1.1.1.20  mrg 	* testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
   5654  1.1.1.20  mrg 	* testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
   5655  1.1.1.20  mrg 	* testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
   5656  1.1.1.20  mrg 	* testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
   5657  1.1.1.20  mrg 
   5658  1.1.1.20  mrg 	* include/debug/string (__gnu_debug::basic_string::insert): Fix for
   5659  1.1.1.20  mrg 	C++98 where the member function of the base class returns void.
   5660  1.1.1.20  mrg 
   5661  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
   5662  1.1.1.20  mrg 	equality comparisons that support value-initialized iterators.
   5663  1.1.1.20  mrg 
   5664  1.1.1.20  mrg 	* include/bits/boost_concept_check.h (__function_requires): Add
   5665  1.1.1.20  mrg 	_GLIBCXX14_CONSTEXPR.
   5666  1.1.1.20  mrg 	* testsuite/25_algorithms/min/concept_checks.cc: New test.
   5667  1.1.1.20  mrg 
   5668  1.1.1.20  mrg 2020-02-26  Patrick Palka  <ppalka (a] redhat.com>
   5669  1.1.1.20  mrg 
   5670  1.1.1.20  mrg 	PR libstdc++/93936
   5671  1.1.1.20  mrg 	* include/std/ranges (split_view::_InnerIter::operator==): Compare
   5672  1.1.1.20  mrg 	the operands' _M_i rather than their _M_i.current().
   5673  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split.cc: Augment test.
   5674  1.1.1.20  mrg 
   5675  1.1.1.20  mrg 	P1645R1 constexpr for <numeric> algorithms
   5676  1.1.1.20  mrg 	* include/bits/stl_numeric.h (iota, accumulate, inner_product,
   5677  1.1.1.20  mrg 	partial_sum, adjacent_difference): Make conditionally constexpr for
   5678  1.1.1.20  mrg 	C++20.
   5679  1.1.1.20  mrg 	* include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
   5680  1.1.1.20  mrg 	test macro.
   5681  1.1.1.20  mrg 	(reduce, transform_reduce, exclusive_scan, inclusive_scan,
   5682  1.1.1.20  mrg 	transform_exclusive_scan, transform_inclusive_scan): Make conditionally
   5683  1.1.1.20  mrg 	constexpr for C++20.
   5684  1.1.1.20  mrg 	* include/std/version (__cpp_lib_constexpr_numeric): Define.
   5685  1.1.1.20  mrg 	* testsuite/26_numerics/accumulate/constexpr.cc: New test.
   5686  1.1.1.20  mrg 	* testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
   5687  1.1.1.20  mrg 	* testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
   5688  1.1.1.20  mrg 	* testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
   5689  1.1.1.20  mrg 	* testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
   5690  1.1.1.20  mrg 	* testsuite/26_numerics/iota/constexpr.cc: Likewise.
   5691  1.1.1.20  mrg 	* testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
   5692  1.1.1.20  mrg 	* testsuite/26_numerics/reduce/constexpr.cc: Likewise.
   5693  1.1.1.20  mrg 	* testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
   5694  1.1.1.20  mrg 	* testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
   5695  1.1.1.20  mrg 	* testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
   5696  1.1.1.20  mrg 
   5697  1.1.1.20  mrg 2020-02-26  Jonathan Wakely  <jwakely (a] redhat.com>
   5698  1.1.1.20  mrg 
   5699  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
   5700  1.1.1.20  mrg 	variables in smaller scope and avoid calling ranges::distance when we
   5701  1.1.1.20  mrg 	know they are pointers. Remove statically-unreachable use of
   5702  1.1.1.20  mrg 	__builtin_unreachable().
   5703  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__lexicographical_compare::__lc):
   5704  1.1.1.20  mrg 	Define inline.
   5705  1.1.1.20  mrg 
   5706  1.1.1.20  mrg 	* include/std/ranges (__detail::__maybe_empty_t): Define new helper
   5707  1.1.1.20  mrg 	alias.
   5708  1.1.1.20  mrg 	(__detail::__maybe_const_t): Likewise.
   5709  1.1.1.20  mrg 	(__adaptor::_RangeAdaptor): Use __maybe_empty_t.
   5710  1.1.1.20  mrg 	(transform_view, take_view, take_while_view, elements_view): Use
   5711  1.1.1.20  mrg 	__maybe_const_t.
   5712  1.1.1.20  mrg 	(join_view, split_view): Use both.
   5713  1.1.1.20  mrg 
   5714  1.1.1.20  mrg 2020-02-25  Patrick Palka  <ppalka (a] redhat.com>
   5715  1.1.1.20  mrg 
   5716  1.1.1.20  mrg 	LWG 3397 basic_istream_view::iterator should not provide
   5717  1.1.1.20  mrg 	iterator_category
   5718  1.1.1.20  mrg 	* include/std/ranges (basic_istream_view:_Iterator::iterator_category):
   5719  1.1.1.20  mrg 	Rename to ...
   5720  1.1.1.20  mrg 	(basic_istream_view:_Iterator::iterator_concept): ... this.
   5721  1.1.1.20  mrg 	* testsuite/std/ranges/istream_view.cc: Augment test.
   5722  1.1.1.20  mrg 
   5723  1.1.1.20  mrg 	LWG 3325 Constrain return type of transformation function for
   5724  1.1.1.20  mrg 	transform_view
   5725  1.1.1.20  mrg 	* include/std/ranges (transform_view): Constrain the return type of the
   5726  1.1.1.20  mrg 	transformation function as per LWG 3325.
   5727  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
   5728  1.1.1.20  mrg 
   5729  1.1.1.20  mrg 	LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
   5730  1.1.1.20  mrg 	* include/std/ranges (join_view::_Iterator::operator--): Require that
   5731  1.1.1.20  mrg 	range_reference_t<_Base> models common_range.
   5732  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
   5733  1.1.1.20  mrg 
   5734  1.1.1.20  mrg 	LWG 3301 transform_view::_Iterator has incorrect iterator_category
   5735  1.1.1.20  mrg 	* include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
   5736  1.1.1.20  mrg 	determination of iterator_category as per LWG 3301.
   5737  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/transform.cc: Augment test.
   5738  1.1.1.20  mrg 
   5739  1.1.1.20  mrg 	LWG 3292 iota_view is under-constrained
   5740  1.1.1.20  mrg 	* include/std/ranges (iota_view): Require that _Winc models semiregular
   5741  1.1.1.20  mrg 	  as per LWG 3292.
   5742  1.1.1.20  mrg 	* testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
   5743  1.1.1.20  mrg 
   5744  1.1.1.20  mrg 2020-02-25  Jonathan Wakely  <jwakely (a] redhat.com>
   5745  1.1.1.20  mrg 
   5746  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
   5747  1.1.1.20  mrg 	during constant evaluation. Call __builtin_memmove directly instead of
   5748  1.1.1.20  mrg 	__memmove.
   5749  1.1.1.20  mrg 	(__copy_or_move_backward): Likewise.
   5750  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__memmove): Remove.
   5751  1.1.1.20  mrg 	(__copy_move<M, true, random_access_iterator_tag>::__copy_m)
   5752  1.1.1.20  mrg 	(__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
   5753  1.1.1.20  mrg 	Use __builtin_memmove directly instead of __memmove.
   5754  1.1.1.20  mrg 	(__copy_move_a2): Do not use memmove during constant evaluation.
   5755  1.1.1.20  mrg 	(__copy_move_backward_a2): Use _IsMove constant to select correct
   5756  1.1.1.20  mrg 	__copy_move_backward specialization.
   5757  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
   5758  1.1.1.20  mrg 	begin turned into moves during constant evaluation.
   5759  1.1.1.20  mrg 
   5760  1.1.1.20  mrg 	* testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
   5761  1.1.1.20  mrg 	previous commit.
   5762  1.1.1.20  mrg 
   5763  1.1.1.20  mrg 	PR libstdc++/93872
   5764  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__memmove): Cast away const before
   5765  1.1.1.20  mrg 	doing move assignment.
   5766  1.1.1.20  mrg 	* testsuite/25_algorithms/move/93872.cc: New test.
   5767  1.1.1.20  mrg 	* testsuite/25_algorithms/move_backward/93872.cc: New test.
   5768  1.1.1.20  mrg 
   5769  1.1.1.20  mrg 2020-02-24  Patrick Palka  <ppalka (a] redhat.com>
   5770  1.1.1.20  mrg 
   5771  1.1.1.20  mrg 	PR libstdc++/93884
   5772  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__copy_or_move,
   5773  1.1.1.20  mrg 	__copy_or_move_backward): Don't inspect the iter_value_t of the output
   5774  1.1.1.20  mrg 	iterator, instead inspect its iterator_traits directly.
   5775  1.1.1.20  mrg 	* include/bits/stl_iterator.h (back_insert_iterator::container):
   5776  1.1.1.20  mrg 	Conditionally initialize.
   5777  1.1.1.20  mrg 	(back_insert_iterator::difference_type): Conditionally define.
   5778  1.1.1.20  mrg 	(back_insert_iterator::back_insert_iterator): Conditionally define this
   5779  1.1.1.20  mrg 	default constructor.
   5780  1.1.1.20  mrg 	(front_insert_iterator::container): Conditionally initialize.
   5781  1.1.1.20  mrg 	(front_insert_iterator::difference_type): Conditionally define.
   5782  1.1.1.20  mrg 	(front_insert_iterator::front_insert_iterator): Conditionally define
   5783  1.1.1.20  mrg 	this default constructor.
   5784  1.1.1.20  mrg 	* 24_iterators/back_insert_iterator/pr93884.cc: New test.
   5785  1.1.1.20  mrg 	* 24_iterators/front_insert_iterator/pr93884.cc: New test.
   5786  1.1.1.20  mrg 
   5787  1.1.1.20  mrg 	P0769R2 Add shift to <algorithm>
   5788  1.1.1.20  mrg 	* include/bits/ranges_algo.h (shift_left, shift_right): New.
   5789  1.1.1.20  mrg 	* testsuite/25_algorithms/shift_left/1.cc: New test.
   5790  1.1.1.20  mrg 	* testsuite/25_algorithms/shift_right/1.cc: New test.
   5791  1.1.1.20  mrg 
   5792  1.1.1.20  mrg 2020-02-24  Jonathan Wakely  <jwakely (a] redhat.com>
   5793  1.1.1.20  mrg 
   5794  1.1.1.20  mrg 	* include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
   5795  1.1.1.20  mrg 	Make noexcept-specifier conditional.
   5796  1.1.1.20  mrg 	* testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
   5797  1.1.1.20  mrg 	noexcept-specifier.
   5798  1.1.1.20  mrg 
   5799  1.1.1.20  mrg 	* include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
   5800  1.1.1.20  mrg 	Add constructor.
   5801  1.1.1.20  mrg 	(operator==(istream_iterator, default_sentinel_t)): Add operator.
   5802  1.1.1.20  mrg 	(ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
   5803  1.1.1.20  mrg 	* include/bits/streambuf_iterator.h
   5804  1.1.1.20  mrg 	(istreambuf_iterator(default_sentinel_t)): Add constructor.
   5805  1.1.1.20  mrg 	(operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
   5806  1.1.1.20  mrg 	* testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
   5807  1.1.1.20  mrg 	New test.
   5808  1.1.1.20  mrg 	* testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
   5809  1.1.1.20  mrg 	* testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
   5810  1.1.1.19  mrg 	New test.
   5811  1.1.1.20  mrg 	* testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
   5812  1.1.1.19  mrg 
   5813  1.1.1.20  mrg 	* include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
   5814  1.1.1.20  mrg 	(ranges::enable_view): Simplify (LWG 3326).
   5815  1.1.1.20  mrg 	* include/bits/range_access.h (ranges::enable_view): Declare.
   5816  1.1.1.20  mrg 	* include/bits/regex.h (__enable_view_impl): Remove partial
   5817  1.1.1.20  mrg 	specialization.
   5818  1.1.1.20  mrg 	* include/bits/stl_multiset.h (__enable_view_impl): Likewise.
   5819  1.1.1.20  mrg 	* include/bits/stl_set.h (__enable_view_impl): Likewise.
   5820  1.1.1.20  mrg 	* include/bits/unordered_set.h (__enable_view_impl): Likewise.
   5821  1.1.1.20  mrg 	* include/debug/multiset.h (__enable_view_impl): Likewise.
   5822  1.1.1.20  mrg 	* include/debug/set.h (__enable_view_impl): Likewise.
   5823  1.1.1.20  mrg 	* include/debug/unordered_set (__enable_view_impl): Likewise.
   5824  1.1.1.20  mrg 	* include/experimental/string_view (ranges::enable_view): Define
   5825  1.1.1.20  mrg 	partial specialization.
   5826  1.1.1.20  mrg 	* include/std/span (ranges::enable_view): Likewise.
   5827  1.1.1.20  mrg 	* include/std/string_view (ranges::enable_view): Likewise.
   5828  1.1.1.20  mrg 	* testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
   5829  1.1.1.20  mrg 
   5830  1.1.1.20  mrg 2020-02-21  Jonathan Wakely  <jwakely (a] redhat.com>
   5831  1.1.1.20  mrg 
   5832  1.1.1.20  mrg 	* include/std/optional (operator<=>(optional<T>, optional<U>))
   5833  1.1.1.20  mrg 	(operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
   5834  1.1.1.20  mrg 	Define for C++20.
   5835  1.1.1.20  mrg 	* include/std/tuple (__tuple_cmp): New helper function for <=>.
   5836  1.1.1.20  mrg 	(operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
   5837  1.1.1.20  mrg 	* include/std/variant (operator<=>(variant<T...>, variant<T...>))
   5838  1.1.1.20  mrg 	(operator<=>(monostate, monostate)): Define for C++20.
   5839  1.1.1.20  mrg 	* testsuite/20_util/optional/relops/three_way.cc: New test.
   5840  1.1.1.20  mrg 	* testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
   5841  1.1.1.20  mrg 	* testsuite/20_util/variant/89851.cc: Move to ...
   5842  1.1.1.20  mrg 	* testsuite/20_util/variant/relops/89851.cc: ... here.
   5843  1.1.1.20  mrg 	* testsuite/20_util/variant/90008.cc: Move to ...
   5844  1.1.1.20  mrg 	* testsuite/20_util/variant/relops/90008.cc: ... here.
   5845  1.1.1.20  mrg 	* testsuite/20_util/variant/relops/three_way.cc: New test.
   5846  1.1.1.19  mrg 
   5847  1.1.1.20  mrg 2020-02-20  Patrick Palka  <ppalka (a] redhat.com>
   5848  1.1.1.19  mrg 
   5849  1.1.1.20  mrg 	* include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
   5850  1.1.1.20  mrg 	function.
   5851  1.1.1.20  mrg 	(views::__adaptor::_RangeAdaptor::operator()): Add comments.  Use
   5852  1.1.1.20  mrg 	__maybe_refwrap to capture lvalue references by reference, and then use
   5853  1.1.1.20  mrg 	unwrap_reference_t to forward the by-reference captures as references.
   5854  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split.cc: Augment test.
   5855  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split_neg.cc: New test.
   5856  1.1.1.20  mrg 
   5857  1.1.1.20  mrg 	* include/std/ranges (iota_view): Forward declare _Sentinel.
   5858  1.1.1.20  mrg 	(iota_view::_Iterator): Befriend _Sentinel.
   5859  1.1.1.20  mrg 	(iota_view::_Sentinel::_M_equal): New member function.
   5860  1.1.1.20  mrg 	(iota_view::_Sentinel::operator==): Use it.
   5861  1.1.1.20  mrg 	(views::_Iota::operator()): Forward __f using the correct type.
   5862  1.1.1.20  mrg 	* testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
   5863  1.1.1.20  mrg 	with integers of different signedness, to appease iota_view's deduction
   5864  1.1.1.20  mrg 	guide.
   5865  1.1.1.20  mrg 	* testsuite/std/ranges/iota/iota_view.cc: Augment test.
   5866  1.1.1.20  mrg 
   5867  1.1.1.20  mrg 2020-02-20  Jonathan Wakely  <jwakely (a] redhat.com>
   5868  1.1.1.20  mrg 
   5869  1.1.1.20  mrg 	* include/bits/range_access.h (ranges::begin): Reject array of
   5870  1.1.1.20  mrg 	incomplete type.
   5871  1.1.1.20  mrg 	(ranges::end, ranges::size): Require arrays to be bounded.
   5872  1.1.1.20  mrg 	(ranges::data): Require lvalue or borrowed_range.
   5873  1.1.1.20  mrg 	(ranges::iterator_t): Remove constraint.
   5874  1.1.1.20  mrg 	* testsuite/std/ranges/access/begin.cc: Do not check array of
   5875  1.1.1.20  mrg 	incomplete type.
   5876  1.1.1.20  mrg 	* testsuite/std/ranges/access/begin_neg.cc: New test.
   5877  1.1.1.20  mrg 	* testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
   5878  1.1.1.20  mrg 	* testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
   5879  1.1.1.20  mrg 	* testsuite/std/ranges/access/ssize.cc: Do not check array of
   5880  1.1.1.20  mrg 	incomplete type.
   5881  1.1.1.20  mrg 
   5882  1.1.1.20  mrg 	* include/std/system_error (error_category::operator<=>)
   5883  1.1.1.20  mrg 	(operator<=>(const error_code&, const error_code&))
   5884  1.1.1.20  mrg 	(operator<=>(const error_condition&, const error_condition&)): Define
   5885  1.1.1.20  mrg 	for C++20.
   5886  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_category/operators/less.cc: New test.
   5887  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_category/operators/three_way.cc: New
   5888  1.1.1.20  mrg 	test.
   5889  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
   5890  1.1.1.20  mrg 	incorrect comment.
   5891  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_code/operators/less.cc: New test.
   5892  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
   5893  1.1.1.20  mrg 	incorrect comment.
   5894  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
   5895  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
   5896  1.1.1.20  mrg 	incorrect comment.
   5897  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
   5898  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
   5899  1.1.1.20  mrg 	Remove incorrect comment.
   5900  1.1.1.20  mrg 	* testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
   5901  1.1.1.20  mrg 	test.
   5902  1.1.1.19  mrg 
   5903  1.1.1.20  mrg 	* libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
   5904  1.1.1.19  mrg 
   5905  1.1.1.20  mrg 	* include/std/thread (thread::id::operator<=>): Define for C++20.
   5906  1.1.1.20  mrg 	* testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
   5907  1.1.1.20  mrg 	functions in namespace std.
   5908  1.1.1.20  mrg 	* testsuite/30_threads/thread/id/operators_c++20.cc: New test.
   5909  1.1.1.20  mrg 
   5910  1.1.1.20  mrg 2020-02-19  Patrick Palka  <ppalka (a] redhat.com>
   5911  1.1.1.20  mrg 
   5912  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
   5913  1.1.1.20  mrg 	null terminator of the underlying string as part of the test_range.
   5914  1.1.1.20  mrg 	(main): Call test03.
   5915  1.1.1.20  mrg 
   5916  1.1.1.20  mrg 2020-02-19  Jonathan Wakely  <jwakely (a] redhat.com>
   5917  1.1.1.20  mrg 
   5918  1.1.1.20  mrg 	* include/bits/stl_iterator.h (common_iterator): Add copyable<I>
   5919  1.1.1.20  mrg 	requirement (LWG 3385).
   5920  1.1.1.20  mrg 	* testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
   5921  1.1.1.20  mrg 	expected declaration.
   5922  1.1.1.20  mrg 
   5923  1.1.1.20  mrg 	* include/std/ranges (take_while_view, drop_view, drop_while_view)
   5924  1.1.1.20  mrg 	(elements_view:_Iterator): Initialize data members (LWG 3364).
   5925  1.1.1.20  mrg 
   5926  1.1.1.20  mrg 	* libsupc++/compare (three_way_comparable): Remove always-false check
   5927  1.1.1.20  mrg 	that should have been removed with weak_equality (P1959R0).
   5928  1.1.1.20  mrg 	(three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
   5929  1.1.1.20  mrg 
   5930  1.1.1.20  mrg 	* include/std/concepts (__detail::__partially_ordered_with): Move here
   5931  1.1.1.20  mrg 	from <compare>.
   5932  1.1.1.20  mrg 	(totally_ordered, totally_ordered_with): Use __partially_ordered_with
   5933  1.1.1.20  mrg 	to simplify definition (LWG 3331).
   5934  1.1.1.20  mrg 	* libsupc++/compare (__detail::__partially_ordered_with): Move to
   5935  1.1.1.20  mrg 	<concepts>.
   5936  1.1.1.20  mrg 
   5937  1.1.1.20  mrg 	* include/std/concepts (totally_ordered_with): Remove redundant
   5938  1.1.1.20  mrg 	requirement (LWG 3329).
   5939  1.1.1.20  mrg 
   5940  1.1.1.20  mrg 	* include/std/ranges (__detail::__convertible_to_non_slicing): New
   5941  1.1.1.20  mrg 	helper concept.
   5942  1.1.1.20  mrg 	(__detail::__pair_like_convertible_to): Remove.
   5943  1.1.1.20  mrg 	(__detail::__pair_like_convertible_from): Add requirements for
   5944  1.1.1.20  mrg 	non-slicing conversions.
   5945  1.1.1.20  mrg 	(subrange): Constrain constructors with __convertible_to_non_slicing.
   5946  1.1.1.20  mrg 	Remove constructors from pair-like types. Add new deduction guide.
   5947  1.1.1.20  mrg 	* testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
   5948  1.1.1.20  mrg 
   5949  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (iter_move): Add declaration to
   5950  1.1.1.20  mrg 	prevent unqualified lookup finding a suitable declaration (LWG 3247).
   5951  1.1.1.20  mrg 
   5952  1.1.1.20  mrg 	* include/std/memory_resource (polymorphic_allocator::allocate)
   5953  1.1.1.20  mrg 	(polymorphic_allocator::allocate_object): Change type of exception to
   5954  1.1.1.20  mrg 	bad_array_new_length (LWG 3237).
   5955  1.1.1.20  mrg 	* testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
   5956  1.1.1.20  mrg 
   5957  1.1.1.20  mrg 	* include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
   5958  1.1.1.20  mrg 	* include/std/version (__cpp_lib_unwrap_ref): Likewise.
   5959  1.1.1.20  mrg 	* testsuite/20_util/unwrap_reference/1.cc: Check macro.
   5960  1.1.1.20  mrg 	* testsuite/20_util/unwrap_reference/3.cc: New test.
   5961  1.1.1.20  mrg 
   5962  1.1.1.20  mrg 	* include/std/numeric (midpoint(T8, T*)): Do not check for complete
   5963  1.1.1.20  mrg 	type during overload resolution, use static assert instead (LWG 3200).
   5964  1.1.1.20  mrg 	* testsuite/26_numerics/midpoint/pointer.cc: Do not test with
   5965  1.1.1.20  mrg 	incomplete type.
   5966  1.1.1.20  mrg 	* testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
   5967  1.1.1.20  mrg 
   5968  1.1.1.20  mrg 	* include/std/span (span(T (&)[N])): Use non-deduced context to
   5969  1.1.1.20  mrg 	prevent first parameter from interfering with class template argument
   5970  1.1.1.20  mrg 	deduction (LWG 3369).
   5971  1.1.1.20  mrg 	* testsuite/23_containers/span/deduction.cc: Add missing 'const'.
   5972  1.1.1.20  mrg 	* testsuite/23_containers/span/lwg3255.cc: Check for construction from
   5973  1.1.1.20  mrg 	rvalues.
   5974  1.1.1.20  mrg 
   5975  1.1.1.20  mrg 	* include/std/span (span::const_iterator, span::const_reverse_iterator)
   5976  1.1.1.20  mrg 	(span::cbegin(), span::cend(), span::crbegin(), span::crend()):
   5977  1.1.1.20  mrg 	Remove (LWG 3320).
   5978  1.1.1.20  mrg 	* testsuite/23_containers/span/everything.cc: Replace uses of cbegin
   5979  1.1.1.20  mrg 	and cend.
   5980  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
   5981  1.1.1.20  mrg 	Likewise.
   5982  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_copy/
   5983  1.1.1.20  mrg 	constrained.cc: Likewise.
   5984  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/
   5985  1.1.1.20  mrg 	uninitialized_default_construct/constrained.cc: Likewise.
   5986  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_fill/
   5987  1.1.1.20  mrg 	constrained.cc: Likewise.
   5988  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/uninitialized_move/
   5989  1.1.1.20  mrg 	constrained.cc: Likewise.
   5990  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/
   5991  1.1.1.20  mrg 	uninitialized_value_construct/constrained.cc: Likewise.
   5992  1.1.1.20  mrg 
   5993  1.1.1.20  mrg 	* include/bits/range_access.h (range_size_t): Define alias template.
   5994  1.1.1.20  mrg 	* include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
   5995  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
   5996  1.1.1.20  mrg 
   5997  1.1.1.20  mrg 	* include/std/ranges (filter_view, transform_view, take_view)
   5998  1.1.1.20  mrg 	(join_view, split_view, reverse_view): Remove commented-out converting
   5999  1.1.1.20  mrg 	constructors (LWG 3280).
   6000  1.1.1.18  mrg 
   6001  1.1.1.20  mrg 	* include/std/memory (uninitialized_construct_using_allocator): Use
   6002  1.1.1.20  mrg 	std::construct_at (LWG 3321).
   6003  1.1.1.18  mrg 
   6004  1.1.1.20  mrg 	* include/std/memory_resource (polymorphic_allocator::allocate_bytes)
   6005  1.1.1.20  mrg 	(polymorphic_allocator::allocate_object)
   6006  1.1.1.20  mrg 	(polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
   6007  1.1.1.20  mrg 
   6008  1.1.1.20  mrg 	LWG 3379. "safe" in several library names is misleading
   6009  1.1.1.20  mrg 	* include/bits/range_access.h (enable_safe_range): Rename to
   6010  1.1.1.20  mrg 	enable_borrowed_range.
   6011  1.1.1.20  mrg 	(__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
   6012  1.1.1.20  mrg 	(safe_range): Rename to borrowed_range.
   6013  1.1.1.20  mrg 	* include/bits/ranges_algo.h: Adjust to use new names.
   6014  1.1.1.20  mrg 	* include/bits/ranges_algobase.h: Likewise.
   6015  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h: Likewise.
   6016  1.1.1.20  mrg 	* include/std/ranges: Likewise.
   6017  1.1.1.20  mrg 	(safe_iterator_t): Rename to borrowed_iterator_t.
   6018  1.1.1.20  mrg 	(safe_subrange_t): Rename to borrowed_subrange_t.
   6019  1.1.1.20  mrg 	* include/std/span: Adjust to use new names.
   6020  1.1.1.20  mrg 	* include/std/string_view: Likewise.
   6021  1.1.1.20  mrg 	* include/experimental/string_view: Likewise.
   6022  1.1.1.20  mrg 	* testsuite/std/ranges/access/begin.cc: Likewise.
   6023  1.1.1.20  mrg 	* testsuite/std/ranges/access/cbegin.cc: Likewise.
   6024  1.1.1.20  mrg 	* testsuite/std/ranges/access/cdata.cc: Likewise.
   6025  1.1.1.20  mrg 	* testsuite/std/ranges/access/cend.cc: Likewise.
   6026  1.1.1.20  mrg 	* testsuite/std/ranges/access/crbegin.cc: Likewise.
   6027  1.1.1.20  mrg 	* testsuite/std/ranges/access/crend.cc: Likewise.
   6028  1.1.1.20  mrg 	* testsuite/std/ranges/access/data.cc: Likewise.
   6029  1.1.1.20  mrg 	* testsuite/std/ranges/access/end.cc: Likewise.
   6030  1.1.1.20  mrg 	* testsuite/std/ranges/access/rbegin.cc: Likewise.
   6031  1.1.1.20  mrg 	* testsuite/std/ranges/access/rend.cc: Likewise.
   6032  1.1.1.20  mrg 	* testsuite/std/ranges/safe_range.cc: Likewise.
   6033  1.1.1.20  mrg 	* testsuite/std/ranges/safe_range_types.cc: Likewise.
   6034  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h: Likewise.
   6035  1.1.1.20  mrg 
   6036  1.1.1.20  mrg 	* include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
   6037  1.1.1.20  mrg 	(tuple_element<1, const subrange<I, S, K>>): Add partial
   6038  1.1.1.20  mrg 	specializations (LWG 3398).
   6039  1.1.1.20  mrg 	* testsuite/std/ranges/subrange/tuple_like.cc: New test.
   6040  1.1.1.20  mrg 
   6041  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
   6042  1.1.1.20  mrg 	(__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
   6043  1.1.1.20  mrg 	(__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
   6044  1.1.1.20  mrg 
   6045  1.1.1.20  mrg 2020-02-18  Patrick Palka  <ppalka (a] redhat.com>
   6046  1.1.1.20  mrg 
   6047  1.1.1.20  mrg 	P1983R0 Wording for GB301, US296, US292, US291, and US283
   6048  1.1.1.20  mrg 	* include/std/ranges (filter_view::pred): New member function.
   6049  1.1.1.20  mrg 	(join_view::_Iterator::_Iterator): Remove now-redundant comment since
   6050  1.1.1.20  mrg 	P1983R0 fixes the highlighted issue in the same way.
   6051  1.1.1.20  mrg 	(join_view::_Iterator<_Const>): Add friend
   6052  1.1.1.20  mrg 	join_view::_Iterator<!_Const>.
   6053  1.1.1.20  mrg 	(join_view::_M_inner): Remove mutable specifier, effectively reverting
   6054  1.1.1.20  mrg 	the proposed wording changes of P3278.
   6055  1.1.1.20  mrg 	(join_view::begin): Refine the condition for when to return a const
   6056  1.1.1.20  mrg 	iterator.
   6057  1.1.1.20  mrg 	(split_view::_OuterIter::_OuterIter): Adjust constraints.
   6058  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
   6059  1.1.1.20  mrg 	exists and works.
   6060  1.1.1.20  mrg 
   6061  1.1.1.20  mrg 2020-02-18  Jonathan Wakely  <jwakely (a] redhat.com>
   6062  1.1.1.20  mrg 
   6063  1.1.1.20  mrg 	PR libstdc++/93818
   6064  1.1.1.20  mrg 	* include/std/ranges (_RangeAdaptor): Add deduction guide.
   6065  1.1.1.20  mrg 	(filter_view::_Iterator): Add alias _Vp_iter and use in place of
   6066  1.1.1.20  mrg 	iterator_t<_Vp>.
   6067  1.1.1.20  mrg 	(filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
   6068  1.1.1.20  mrg 	(transform_view::_Iterator): Add alias _Base_iter and use in place of
   6069  1.1.1.20  mrg 	iterator_t<_Base>.
   6070  1.1.1.20  mrg 	(transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
   6071  1.1.1.20  mrg 	(join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
   6072  1.1.1.20  mrg 	(join_view::_Iterator::_S_iter_cat()): Add 'typename'.
   6073  1.1.1.20  mrg 	(split_view::_InnerIter::_S_iter_cat()): Likewise.
   6074  1.1.1.20  mrg 
   6075  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
   6076  1.1.1.20  mrg 	assumption that long is wider than int.
   6077  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
   6078  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/less.cc: Likewise.
   6079  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
   6080  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
   6081  1.1.1.20  mrg 
   6082  1.1.1.20  mrg 	P1976R2 Fixed-size span construction from dynamic range
   6083  1.1.1.20  mrg 	* include/std/span (__cpp_lib_span): Update value.
   6084  1.1.1.20  mrg 	(span(It, size_type), span(It, End)): Make conditionally explicit. Add
   6085  1.1.1.20  mrg 	assertion.
   6086  1.1.1.20  mrg 	(span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
   6087  1.1.1.20  mrg 	constraints.
   6088  1.1.1.20  mrg 	(span::first<Count>(), span::last<Count>()): Use explicit type in
   6089  1.1.1.20  mrg 	return statement.
   6090  1.1.1.20  mrg 	(as_bytes, as_writable_bytes): Likewise.
   6091  1.1.1.20  mrg 	* include/std/version (__cpp_lib_span): Update value.
   6092  1.1.1.20  mrg 	* testsuite/23_containers/span/1.cc: Check new value.
   6093  1.1.1.20  mrg 	* testsuite/23_containers/span/2.cc: Check new value.
   6094  1.1.1.20  mrg 	* testsuite/23_containers/span/explicit.cc: New test.
   6095  1.1.1.20  mrg 
   6096  1.1.1.20  mrg 	* include/std/span (span::__is_compatible_array): Simplify alias
   6097  1.1.1.20  mrg 	template by using requires-clause.
   6098  1.1.1.20  mrg 	(span::__is_compatible_ref): New alias template for constraining
   6099  1.1.1.20  mrg 	constructors.
   6100  1.1.1.20  mrg 	(span::__is_compatible_iterator, span::__is_compatible_range): Remove.
   6101  1.1.1.20  mrg 	(span(It, size_type), span(It, End)): Use __is_compatible_ref.
   6102  1.1.1.20  mrg 	(span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
   6103  1.1.1.20  mrg 	redundant parentheses.
   6104  1.1.1.20  mrg 	(span(R&&)): Add missing constraints.
   6105  1.1.1.20  mrg 
   6106  1.1.1.20  mrg 	* include/std/span (span): Reorder members and rename template
   6107  1.1.1.20  mrg 	parameters to match declarations in the C++2a working paper.
   6108  1.1.1.20  mrg 
   6109  1.1.1.20  mrg 	P2116R0 Remove tuple-like protocol support from fixed-extent span
   6110  1.1.1.20  mrg 	* include/std/span (get, tuple_size, tuple_element): Remove.
   6111  1.1.1.20  mrg 	* testsuite/23_containers/span/everything.cc: Remove checks for
   6112  1.1.1.20  mrg 	tuple-like API.
   6113  1.1.1.20  mrg 	* testsuite/23_containers/span/get_neg.cc: Remove.
   6114  1.1.1.20  mrg 	* testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
   6115  1.1.1.20  mrg 	* testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
   6116  1.1.1.20  mrg 	* testsuite/23_containers/span/tuple_size_neg.cc: Remove.
   6117  1.1.1.20  mrg 
   6118  1.1.1.20  mrg 2020-02-17  Patrick Palka  <ppalka (a] redhat.com>
   6119  1.1.1.20  mrg 
   6120  1.1.1.20  mrg 	P2106R0 Alternative wording for GB315 and GB316
   6121  1.1.1.20  mrg 	* include/bits/ranges_algo.h (in_fun_result): New.
   6122  1.1.1.20  mrg 	(for_each_result, for_each_n_result): Change into an alias of
   6123  1.1.1.20  mrg 	in_fun_result.
   6124  1.1.1.20  mrg 	(in_in_result): New.
   6125  1.1.1.20  mrg 	(mismatch_result): Change into an alias of in_in_result.
   6126  1.1.1.20  mrg 	(copy_if_result): Change into an alias of in_out_result.
   6127  1.1.1.20  mrg 	(swap_ranges_result): Change into an alias of in_in_result.
   6128  1.1.1.20  mrg 	(unary_transform_result): Change into an alias of in_out_result.
   6129  1.1.1.20  mrg 	(in_in_out_result): New.
   6130  1.1.1.20  mrg 	(binary_transform_result): Change into an alias of in_in_out_result.
   6131  1.1.1.20  mrg 	(replace_copy_result, replace_copy_if_result, remove_copy_if_result,
   6132  1.1.1.20  mrg 	remove_copy_result, unique_copy_result, reverse_copy_result,
   6133  1.1.1.20  mrg 	rotate_copy_result, partial_sort_copy_result): Change into an alias of
   6134  1.1.1.20  mrg 	in_out_result.
   6135  1.1.1.20  mrg 	(in_out_out_result): New.
   6136  1.1.1.20  mrg 	(partition_copy_result, merge_result): Change into an alias of
   6137  1.1.1.20  mrg 	in_out_out_result.
   6138  1.1.1.20  mrg 	(set_union_result, set_intersection_result): Change into an alias of
   6139  1.1.1.20  mrg 	in_in_out_result.
   6140  1.1.1.20  mrg 	(set_difference_result): Change into an alias of in_out_result.
   6141  1.1.1.20  mrg 	(set_symmetric_difference): Change into an alias of in_in_out_result.
   6142  1.1.1.20  mrg 	(min_max_result): New.
   6143  1.1.1.20  mrg 	(minmax_result, minmax_element_result): Change into an alias of
   6144  1.1.1.20  mrg 	min_max_result.
   6145  1.1.1.20  mrg 	(in_found_result): New.
   6146  1.1.1.20  mrg 	(next_permutation_result, prev_permutation_result): Change into an alias
   6147  1.1.1.20  mrg 	of in_found_result.
   6148  1.1.1.20  mrg 	(__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
   6149  1.1.1.20  mrg 	Adjust following changes to next_permutation_result and
   6150  1.1.1.20  mrg 	prev_permutation_result.
   6151  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (in_out_result): New.
   6152  1.1.1.20  mrg 	(copy_result, move_result, move_backward_result, copy_backward_result,
   6153  1.1.1.20  mrg 	copy_n_result): Change into an alias of in_out_result.
   6154  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h (uninitialized_copy_result,
   6155  1.1.1.20  mrg 	uninitialized_copy_n_result, uninitialized_move_result,
   6156  1.1.1.20  mrg 	uninitialized_move_n_result): Likewise.
   6157  1.1.1.20  mrg 	* testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
   6158  1.1.1.20  mrg 	structured bindings.
   6159  1.1.1.20  mrg 	* testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
   6160  1.1.1.20  mrg 
   6161  1.1.1.20  mrg 	P1243R4 Rangify new algorithms
   6162  1.1.1.20  mrg 	* include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
   6163  1.1.1.20  mrg 	for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
   6164  1.1.1.20  mrg 	* testsuite/25_algorithms/clamp/constrained.cc: New test.
   6165  1.1.1.20  mrg 	* testsuite/25_algorithms/for_each/constrained.cc: Augment test.
   6166  1.1.1.20  mrg 	* testsuite/25_algorithms/sample/constrained.cc: New test.
   6167  1.1.1.20  mrg 
   6168  1.1.1.20  mrg 2020-02-17  Jonathan Wakely  <jwakely (a] redhat.com>
   6169  1.1.1.20  mrg 
   6170  1.1.1.20  mrg 	P1964R2 Wording for boolean-testable
   6171  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
   6172  1.1.1.20  mrg 	(__adjacent_find_fn): Cast result of predicate to bool.
   6173  1.1.1.20  mrg 	* include/std/concepts (__boolean): Remove.
   6174  1.1.1.20  mrg 	(__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
   6175  1.1.1.20  mrg 	new helper concepts.
   6176  1.1.1.20  mrg 	(__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
   6177  1.1.1.20  mrg 	(predicate): Use __boolean_testable instead of boolean.
   6178  1.1.1.20  mrg 	* libsupc++/compare (__detail::__partially_ordered, _Synth3way):
   6179  1.1.1.20  mrg 	Likewise.
   6180  1.1.1.20  mrg 
   6181  1.1.1.20  mrg 	P1970R2 Consistency for size() functions: Add ranges::ssize
   6182  1.1.1.20  mrg 	* include/bits/range_access.h (_SSize, ssize): Define for C++20.
   6183  1.1.1.20  mrg 	* testsuite/std/ranges/access/ssize.cc: New test.
   6184  1.1.1.20  mrg 
   6185  1.1.1.20  mrg 	P1956R1 On the names of low-level bit manipulation functions
   6186  1.1.1.20  mrg 	* include/bits/hashtable_policy.h: Update comment.
   6187  1.1.1.20  mrg 	* include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
   6188  1.1.1.20  mrg 	(ispow2, ceil2, floor2, log2p1): Likewise.
   6189  1.1.1.20  mrg 	(__cpp_lib_int_pow2): Add feature test macro.
   6190  1.1.1.20  mrg 	* include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
   6191  1.1.1.20  mrg 	* include/std/memory (assume_aligned): Adjust use of ispow2.
   6192  1.1.1.20  mrg 	* include/std/version (__cpp_lib_int_pow2): Add.
   6193  1.1.1.20  mrg 	* libsupc++/new_opa.cc: Adjust use of __ispow2.
   6194  1.1.1.20  mrg 	* src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
   6195  1.1.1.20  mrg 	* testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
   6196  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
   6197  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
   6198  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
   6199  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
   6200  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
   6201  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
   6202  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
   6203  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
   6204  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
   6205  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
   6206  1.1.1.20  mrg 
   6207  1.1.1.20  mrg 	* include/std/charconv: Add comment.
   6208  1.1.1.20  mrg 
   6209  1.1.1.20  mrg 	PR libstdc++/92546 (partial)
   6210  1.1.1.20  mrg 	* include/bits/random.h (uniform_random_bit_generator): Move definition
   6211  1.1.1.20  mrg 	to <bits/uniform_int_dist.h>.
   6212  1.1.1.20  mrg 	* include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
   6213  1.1.1.20  mrg 	of <bits/random.h>.
   6214  1.1.1.20  mrg 	* include/bits/ranges_algobase.h: Do not include <cmath>.
   6215  1.1.1.20  mrg 	* include/bits/uniform_int_dist.h (uniform_random_bit_generator):
   6216  1.1.1.20  mrg 	Move here.
   6217  1.1.1.20  mrg 	* include/std/ranges: Do not include <limits>.
   6218  1.1.1.20  mrg 	* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
   6219  1.1.1.20  mrg 
   6220  1.1.1.20  mrg 	PR libstdc++/92546 (partial)
   6221  1.1.1.20  mrg 	* include/Makefile.am: Add new header.
   6222  1.1.1.20  mrg 	* include/Makefile.in: Regenerate.
   6223  1.1.1.20  mrg 	* include/bits/int_limits.h: New header.
   6224  1.1.1.20  mrg 	* include/bits/parse_numbers.h (__select_int::_Select_int): Replace
   6225  1.1.1.20  mrg 	numeric_limits with __detail::__int_limits.
   6226  1.1.1.20  mrg 	* include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
   6227  1.1.1.20  mrg 	(__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
   6228  1.1.1.20  mrg 	Likewise.
   6229  1.1.1.20  mrg 	* include/std/charconv (__to_chars_8, __from_chars_binary)
   6230  1.1.1.20  mrg 	(__from_chars_alpha_to_num, from_chars): Likewise.
   6231  1.1.1.20  mrg 	* include/std/memory_resource (polymorphic_allocator::allocate)
   6232  1.1.1.20  mrg 	(polymorphic_allocator::allocate_object): Likewise.
   6233  1.1.1.20  mrg 	* include/std/string_view (basic_string_view::_S_compare): Likewise.
   6234  1.1.1.20  mrg 	* include/std/utility (in_range): Likewise.
   6235  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
   6236  1.1.1.20  mrg 	extra error about incomplete type __int_limits<bool>.
   6237  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
   6238  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
   6239  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
   6240  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
   6241  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
   6242  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
   6243  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
   6244  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
   6245  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
   6246  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
   6247  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
   6248  1.1.1.20  mrg 	* testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
   6249  1.1.1.20  mrg 
   6250  1.1.1.20  mrg 	* python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
   6251  1.1.1.20  mrg 	value for partial_ordering::unordered.
   6252  1.1.1.18  mrg 
   6253  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
   6254  1.1.1.20  mrg 	const-qualified expression variations.
   6255  1.1.1.20  mrg 	* include/std/concepts (copyable): Likewise.
   6256  1.1.1.20  mrg 
   6257  1.1.1.20  mrg 	* include/std/type_traits (__is_standard_integer): New helper trait.
   6258  1.1.1.20  mrg 	* include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
   6259  1.1.1.20  mrg 	(cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
   6260  1.1.1.20  mrg 	* include/std/version (__cpp_lib_integer_comparison_functions): Define.
   6261  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/1.cc: New test.
   6262  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/2.cc: New test.
   6263  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/equal.cc: New test.
   6264  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
   6265  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
   6266  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
   6267  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
   6268  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/in_range.cc: New test.
   6269  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
   6270  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/less.cc: New test.
   6271  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/less_equal.cc: New test.
   6272  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
   6273  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/less_neg.cc: New test.
   6274  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/not_equal.cc: New test.
   6275  1.1.1.20  mrg 	* testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
   6276  1.1.1.20  mrg 
   6277  1.1.1.20  mrg 2020-02-16  Patrick Palka  <ppalka (a] redhat.com>
   6278  1.1.1.20  mrg 
   6279  1.1.1.20  mrg 	* include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
   6280  1.1.1.20  mrg 	Move code after an early exit constexpr if to under an else branch.
   6281  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
   6282  1.1.1.20  mrg 
   6283  1.1.1.20  mrg 2020-02-15  Patrick Palka  <ppalka (a] redhat.com>
   6284  1.1.1.20  mrg 
   6285  1.1.1.20  mrg 	* include/bits/ranges_algo.h: Adjust whitespace and formatting.
   6286  1.1.1.20  mrg 	* include/bits/ranges_algobase.h: Likewise.
   6287  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h: Likewise.
   6288  1.1.1.20  mrg 
   6289  1.1.1.20  mrg 	* include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
   6290  1.1.1.20  mrg 	binary_search, copy_if, count, count_if, equal_range, find, find_end,
   6291  1.1.1.20  mrg 	find_first_of, find_if, find_if_not, for_each, generate, generate_n,
   6292  1.1.1.20  mrg 	includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
   6293  1.1.1.20  mrg 	is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
   6294  1.1.1.20  mrg 	lower_bound, make_heap, max, max_element, merge, min, min_element,
   6295  1.1.1.20  mrg 	minmax, minmax_element, mismatch, next_permutation, none_of,
   6296  1.1.1.20  mrg 	nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
   6297  1.1.1.20  mrg 	partition_point, pop_heap, prev_permutation, push_heap, remove,
   6298  1.1.1.20  mrg 	remove_copy, remove_copy_if, remove_if, replace, replace_copy,
   6299  1.1.1.20  mrg 	replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
   6300  1.1.1.20  mrg 	search, search_n, set_difference, set_intersection,
   6301  1.1.1.20  mrg 	set_symmetric_difference, set_union, shuffle, sort, sort_heap,
   6302  1.1.1.20  mrg 	stable_partition, stable_sort, swap_ranges, transform, unique,
   6303  1.1.1.20  mrg 	unique_copy, upper_bound): Convert into function objects.
   6304  1.1.1.20  mrg 	* include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
   6305  1.1.1.20  mrg 	fill, move_backward, copy_backward): Likewise.
   6306  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h (uninitialized_default_construct,
   6307  1.1.1.20  mrg 	uninitialized_default_construct_n, uninitialized_value_construct,
   6308  1.1.1.20  mrg 	uninitialized_value_construct_n, uninitialized_copy,
   6309  1.1.1.20  mrg 	uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
   6310  1.1.1.20  mrg 	uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
   6311  1.1.1.20  mrg 	destroy, destroy_n): Likewise.
   6312  1.1.1.20  mrg 
   6313  1.1.1.20  mrg 	* include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
   6314  1.1.1.20  mrg 	(ranges::find_end): ... here.
   6315  1.1.1.20  mrg 	(ranges::__lexicographical_compare): Fold into ...
   6316  1.1.1.20  mrg 	(ranges::lexicographical_compare): ... here.
   6317  1.1.1.20  mrg 	* include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
   6318  1.1.1.20  mrg 	(ranges::equal): ... here.
   6319  1.1.1.18  mrg 
   6320  1.1.1.20  mrg 2020-02-15  Jonathan Wakely  <jwakely (a] redhat.com>
   6321  1.1.1.18  mrg 
   6322  1.1.1.20  mrg 	* include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
   6323  1.1.1.20  mrg 	* include/std/deque: Likewise.
   6324  1.1.1.20  mrg 	* include/std/forward_list: Likewise.
   6325  1.1.1.20  mrg 	* include/std/list: Likewise.
   6326  1.1.1.20  mrg 	* include/std/string: Likewise.
   6327  1.1.1.20  mrg 	* include/std/vector: Likewise.
   6328  1.1.1.20  mrg 	* include/std/version: Likewise.
   6329  1.1.1.20  mrg 	* testsuite/23_containers/deque/erasure.cc: Test for new value.
   6330  1.1.1.20  mrg 	* testsuite/23_containers/forward_list/erasure.cc: Likewise.
   6331  1.1.1.20  mrg 	* testsuite/23_containers/list/erasure.cc: Likewise.
   6332  1.1.1.20  mrg 	* testsuite/23_containers/map/erasure.cc: Likewise.
   6333  1.1.1.20  mrg 	* testsuite/23_containers/set/erasure.cc: Likewise.
   6334  1.1.1.20  mrg 	* testsuite/23_containers/unordered_map/erasure.cc: Likewise.
   6335  1.1.1.20  mrg 	* testsuite/23_containers/unordered_set/erasure.cc: Likewise.
   6336  1.1.1.20  mrg 	* testsuite/23_containers/vector/erasure.cc: Likewise.
   6337  1.1.1.16  mrg 
   6338  1.1.1.20  mrg 2020-02-15  Jonathan Wakely  <jwakely (a] redhat.com>
   6339  1.1.1.16  mrg 
   6340  1.1.1.20  mrg 	* include/bits/random.h (uniform_random_bit_generator): Require min()
   6341  1.1.1.20  mrg 	and max() to be constant expressions and min() to be less than max().
   6342  1.1.1.20  mrg 	* testsuite/26_numerics/random/concept.cc: Check additional cases.
   6343  1.1.1.20  mrg 	* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
   6344  1.1.1.15  mrg 
   6345  1.1.1.20  mrg 2020-02-13  Patrick Palka  <ppalka (a] redhat.com>
   6346  1.1.1.15  mrg 
   6347  1.1.1.20  mrg 	* include/Makefile.am: Add <bits/ranges_uninitialized.h>.
   6348  1.1.1.20  mrg 	* include/Makefile.in: Regenerate.
   6349  1.1.1.20  mrg 	* include/bits/ranges_uninitialized.h: New header.
   6350  1.1.1.20  mrg 	* include/std/memory: Include it.
   6351  1.1.1.20  mrg 	* testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
   6352  1.1.1.19  mrg 	test.
   6353  1.1.1.20  mrg 	* .../uninitialized_copy/constrained.cc: New test.
   6354  1.1.1.20  mrg 	* .../uninitialized_default_construct/constrained.cc: New test.
   6355  1.1.1.20  mrg 	* .../uninitialized_fill/constrained.cc: New test.
   6356  1.1.1.20  mrg 	* .../uninitialized_move/constrained.cc: New test.
   6357  1.1.1.20  mrg 	* .../uninitialized_value_construct/constrained.cc: New test.
   6358  1.1.1.20  mrg 
   6359  1.1.1.20  mrg 	* include/Makefile.am: Add bits/ranges_algobase.h
   6360  1.1.1.20  mrg 	* include/Makefile.in: Regenerate.
   6361  1.1.1.20  mrg 	* bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
   6362  1.1.1.20  mrg 	existing #includes.
   6363  1.1.1.20  mrg 	(__detail::__is_normal_iterator, __detail::is_reverse_iterator,
   6364  1.1.1.20  mrg 	__detail::__is_move_iterator, copy_result, move_result,
   6365  1.1.1.20  mrg 	__equal, equal, copy_result, move_result, move_backward_result,
   6366  1.1.1.20  mrg 	copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
   6367  1.1.1.20  mrg 	move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
   6368  1.1.1.20  mrg 	fill): Split out into ...
   6369  1.1.1.20  mrg 	* bits/range_algobase.h: ... this new header.
   6370  1.1.1.20  mrg 
   6371  1.1.1.20  mrg 2020-02-12  Patrick Palka  <ppalka (a] redhat.com>
   6372  1.1.1.20  mrg 
   6373  1.1.1.20  mrg 	LWG 3389 and LWG 3390
   6374  1.1.1.20  mrg 	* include/bits/stl_iterator.h (move_move_iterator): Use std::move when
   6375  1.1.1.20  mrg 	constructing the move_iterator with __i.
   6376  1.1.1.20  mrg 	(counted_iterator::counted_iterator): Use std::move when initializing
   6377  1.1.1.20  mrg 	M_current with __i.
   6378  1.1.1.20  mrg 	* testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
   6379  1.1.1.20  mrg 	* testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
   6380  1.1.1.20  mrg 
   6381  1.1.1.20  mrg 2020-02-12  Sandra Loosemore  <sandra (a] codesourcery.com>
   6382  1.1.1.20  mrg 
   6383  1.1.1.20  mrg 	PR libstdc++/79193
   6384  1.1.1.20  mrg 	PR libstdc++/88999
   6385  1.1.1.20  mrg 
   6386  1.1.1.20  mrg 	* configure: Regenerated.
   6387  1.1.1.20  mrg 
   6388  1.1.1.20  mrg 2020-02-12  Franois Dumont  <fdumont (a] gcc.gnu.org>
   6389  1.1.1.20  mrg 
   6390  1.1.1.20  mrg 	* include/bits/hashtable.h
   6391  1.1.1.20  mrg 	(_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
   6392  1.1.1.20  mrg 	missing std namespace qualification to forward call.
   6393  1.1.1.20  mrg 
   6394  1.1.1.20  mrg 2020-02-09  Jonathan Wakely  <jwakely (a] redhat.com>
   6395  1.1.1.15  mrg 
   6396  1.1.1.20  mrg 	* testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
   6397  1.1.1.20  mrg 	comment.
   6398  1.1.1.20  mrg 	* testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
   6399  1.1.1.15  mrg 
   6400  1.1.1.20  mrg 	* include/std/ranges: Fix non-ASCII characters in comment.
   6401  1.1.1.19  mrg 
   6402  1.1.1.20  mrg 	* include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
   6403  1.1.1.20  mrg 	equality comparison to be valid and return bool.
   6404  1.1.1.20  mrg 	(__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
   6405  1.1.1.20  mrg 	* testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
   6406  1.1.1.20  mrg 	type with ambiguous conversion to fundamental types.
   6407  1.1.1.20  mrg 	* testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
   6408  1.1.1.20  mrg 
   6409  1.1.1.20  mrg 2020-02-07  Jonathan Wakely  <jwakely (a] redhat.com>
   6410  1.1.1.20  mrg 
   6411  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
   6412  1.1.1.20  mrg 	Use remove_cvref_t.
   6413  1.1.1.20  mrg 	(readable_traits): Rename to indirectly_readable_traits.
   6414  1.1.1.20  mrg 	(readable): Rename to indirectly_readable.
   6415  1.1.1.20  mrg 	(writable): Rename to indirectly_writable.
   6416  1.1.1.20  mrg 	(__detail::__iter_exchange_move): Do not use remove_reference_t.
   6417  1.1.1.20  mrg 	(indirectly_swappable): Adjust requires expression parameter types.
   6418  1.1.1.20  mrg 	expression.
   6419  1.1.1.20  mrg 	* include/bits/ranges_algo.h (ranges::transform, ranges::replace)
   6420  1.1.1.20  mrg 	(ranges::replace_if, ranges::generate_n, ranges::generate)
   6421  1.1.1.20  mrg 	(ranges::remove): Use new name for writable.
   6422  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
   6423  1.1.1.20  mrg 	Use new name for readable.
   6424  1.1.1.20  mrg 	* include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
   6425  1.1.1.20  mrg 	new name for readable_traits.
   6426  1.1.1.20  mrg 	* testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
   6427  1.1.1.20  mrg 	* testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
   6428  1.1.1.20  mrg 	new definition of indirectly_readable.
   6429  1.1.1.20  mrg 
   6430  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
   6431  1.1.1.20  mrg 	to take parameters of common_iterator, instead of the common_iterator
   6432  1.1.1.20  mrg 	type itself. Fix argument for __common_iter_has_arrow constraint.
   6433  1.1.1.20  mrg 	(iterator_traits<common_iterator<I, S>>::pointer): Adjust.
   6434  1.1.1.20  mrg 
   6435  1.1.1.20  mrg 2020-02-07  Jonathan Wakely  <jwakely (a] redhat.com>
   6436  1.1.1.20  mrg 
   6437  1.1.1.20  mrg 	* include/std/ranges (iota_view): Add braces to prevent -Wempty-body
   6438  1.1.1.20  mrg 	warning.
   6439  1.1.1.20  mrg 	(basic_istream_view::_Iterator::operator++()): Add missing return.
   6440  1.1.1.20  mrg 
   6441  1.1.1.20  mrg 2020-02-07  Patrick Palka  <ppalka (a] redhat.com>
   6442  1.1.1.20  mrg 
   6443  1.1.1.20  mrg 	* include/bits/ranges_algo.h: Remove extraneous &&.
   6444  1.1.1.20  mrg 
   6445  1.1.1.20  mrg 	* include/std/ranges (ranges::__detail::__stream_extractable,
   6446  1.1.1.20  mrg 	ranges::basic_istream_view, ranges::istream_view): Define.
   6447  1.1.1.20  mrg 	* testsuite/std/ranges/istream_view: New test.
   6448  1.1.1.20  mrg 
   6449  1.1.1.20  mrg 	Implement C++20 range adaptors
   6450  1.1.1.20  mrg 	* include/std/ranges: Include <bits/refwrap.h> and <tuple>.
   6451  1.1.1.20  mrg 	(subrange::_S_store_size): Mark as const instead of constexpr to
   6452  1.1.1.20  mrg 	avoid what seems to be a bug in GCC.
   6453  1.1.1.20  mrg 	(__detail::__box): Give it defaulted copy and move constructors.
   6454  1.1.1.20  mrg 	(ranges::views::_Single::operator()): Mark constexpr.
   6455  1.1.1.20  mrg 	(ranges::views::_Iota::operator()): Mark constexpr.
   6456  1.1.1.20  mrg 	(__detail::Empty): Define.
   6457  1.1.1.20  mrg 	(ranges::views::__closure::_RangeAdaptor,
   6458  1.1.1.20  mrg 	ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
   6459  1.1.1.20  mrg 	ranges::views::all, ranges::__detail::find_if,
   6460  1.1.1.20  mrg 	ranges::__detail::find_if_not, ranges::__detail::mismatch,
   6461  1.1.1.20  mrg 	ranges::detail::min, filter_view, ranges::views::filter, transform_view,
   6462  1.1.1.20  mrg 	ranges::views::transform, take_view, ranges::views::take,
   6463  1.1.1.20  mrg 	take_while_view, ranges::views::take_while, drop_view,
   6464  1.1.1.20  mrg 	ranges::views::drop, join_view, ranges::views::join,
   6465  1.1.1.20  mrg 	__detail::require_constant, __detail::tiny_range, split_view,
   6466  1.1.1.20  mrg 	ranges::views::split, ranges::views::_Counted, ranges::views::counted,
   6467  1.1.1.20  mrg 	common_view, ranges::views::common, reverse_view,
   6468  1.1.1.20  mrg 	ranges::views::reverse,
   6469  1.1.1.20  mrg 	ranges::views::__detail::__is_reversible_subrange,
   6470  1.1.1.20  mrg 	ranges::views::__detail::__is_reverse_view, reverse_view,
   6471  1.1.1.20  mrg 	ranges::views::reverse, __detail::__has_tuple_element, elements_view,
   6472  1.1.1.20  mrg 	ranges::views::elements, ranges::views::keys, ranges::views::values):
   6473  1.1.1.20  mrg 	Define.
   6474  1.1.1.20  mrg 	(views): Alias for ranges::views.
   6475  1.1.1.20  mrg 	(tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
   6476  1.1.1.20  mrg 	tuple_element<1, ranges::subrange>): New partial specializations.
   6477  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/all.cc: New test.
   6478  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/common.cc: Likewise.
   6479  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/counted.cc: Likewise.
   6480  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/drop.cc: Likewise.
   6481  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
   6482  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/elements.cc: Likewise.
   6483  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/filter.cc: Likewise.
   6484  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/join.cc: Likewise.
   6485  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/reverse.cc: Likewise.
   6486  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/split.cc: Likewise.
   6487  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/take.cc: Likewise.
   6488  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/take_while.cc: Likewise.
   6489  1.1.1.20  mrg 	* testsuite/std/ranges/adaptors/transform.cc: Likewise.
   6490  1.1.1.20  mrg 
   6491  1.1.1.20  mrg 2020-02-07  Jonathan Wakely  <jwakely (a] redhat.com>
   6492  1.1.1.20  mrg 
   6493  1.1.1.20  mrg 	* libsupc++/compare (__cmp_cat::type): Define typedef for underlying
   6494  1.1.1.20  mrg 	type of enumerations and comparison category types.
   6495  1.1.1.20  mrg 	(__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
   6496  1.1.1.20  mrg 	(__cmp_cat::_Ncmp::unordered): Change value to 2.
   6497  1.1.1.20  mrg 	(partial_ordering::_M_value, weak_ordering::_M_value)
   6498  1.1.1.20  mrg 	(strong_ordering::_M_value): Change type to __cmp_cat::type.
   6499  1.1.1.20  mrg 	(partial_ordering::_M_is_ordered): Remove data member.
   6500  1.1.1.20  mrg 	(partial_ordering): Use second bit of _M_value for unordered. Adjust
   6501  1.1.1.20  mrg 	comparison operators.
   6502  1.1.1.20  mrg 	(weak_ordering::operator partial_ordering): Simplify to remove
   6503  1.1.1.20  mrg 	branches.
   6504  1.1.1.20  mrg 	(operator<=>(unspecified, weak_ordering)): Likewise.
   6505  1.1.1.20  mrg 	(strong_ordering::operator partial_ordering): Likewise.
   6506  1.1.1.20  mrg 	(strong_ordering::operator weak_ordering): Likewise.
   6507  1.1.1.20  mrg 	(operator<=>(unspecified, strong_ordering)): Likewise.
   6508  1.1.1.20  mrg 	* testsuite/18_support/comparisons/categories/partialord.cc: New test.
   6509  1.1.1.20  mrg 	* testsuite/18_support/comparisons/categories/strongord.cc: New test.
   6510  1.1.1.20  mrg 	* testsuite/18_support/comparisons/categories/weakord.cc: New test.
   6511  1.1.1.20  mrg 
   6512  1.1.1.20  mrg 	* include/std/ranges (iota_view::_Iterator): Fix typo in name of
   6513  1.1.1.20  mrg 	__cpp_lib_three_way_comparison macro and use deduced return type for
   6514  1.1.1.20  mrg 	operator<=>.
   6515  1.1.1.20  mrg 	* testsuite/std/ranges/iota/iterator.cc: New test.
   6516  1.1.1.19  mrg 
   6517  1.1.1.20  mrg 2020-02-07  Patrick Palka  <ppalka (a] redhat.com>
   6518  1.1.1.20  mrg 	    Jonathan Wakely  <jwakely (a] redhat.com>
   6519  1.1.1.19  mrg 
   6520  1.1.1.20  mrg 	Implement C++20 constrained algorithms
   6521  1.1.1.20  mrg 	* include/Makefile.am: Add new header.
   6522  1.1.1.20  mrg 	* include/Makefile.in: Regenerate.
   6523  1.1.1.20  mrg 	* include/std/algorithm: Include <bits/ranges_algo.h>.
   6524  1.1.1.20  mrg 	* include/bits/ranges_algo.h: New file.
   6525  1.1.1.20  mrg 	* testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
   6526  1.1.1.20  mrg 	* testsuite/25_algorithms/all_of/constrained.cc: New test.
   6527  1.1.1.20  mrg 	* testsuite/25_algorithms/any_of/constrained.cc: New test.
   6528  1.1.1.20  mrg 	* testsuite/25_algorithms/binary_search/constrained.cc: New test.
   6529  1.1.1.20  mrg 	* testsuite/25_algorithms/copy/constrained.cc: New test.
   6530  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_backward/constrained.cc: New test.
   6531  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_if/constrained.cc: New test.
   6532  1.1.1.20  mrg 	* testsuite/25_algorithms/copy_n/constrained.cc: New test.
   6533  1.1.1.20  mrg 	* testsuite/25_algorithms/count/constrained.cc: New test.
   6534  1.1.1.20  mrg 	* testsuite/25_algorithms/count_if/constrained.cc: New test.
   6535  1.1.1.20  mrg 	* testsuite/25_algorithms/equal/constrained.cc: New test.
   6536  1.1.1.20  mrg 	* testsuite/25_algorithms/equal_range/constrained.cc: New test.
   6537  1.1.1.20  mrg 	* testsuite/25_algorithms/fill/constrained.cc: New test.
   6538  1.1.1.20  mrg 	* testsuite/25_algorithms/fill_n/constrained.cc: New test.
   6539  1.1.1.20  mrg 	* testsuite/25_algorithms/find/constrained.cc: New test.
   6540  1.1.1.20  mrg 	* testsuite/25_algorithms/find_end/constrained.cc: New test.
   6541  1.1.1.20  mrg 	* testsuite/25_algorithms/find_first_of/constrained.cc: New test.
   6542  1.1.1.20  mrg 	* testsuite/25_algorithms/find_if/constrained.cc: New test.
   6543  1.1.1.20  mrg 	* testsuite/25_algorithms/find_if_not/constrained.cc: New test.
   6544  1.1.1.20  mrg 	* testsuite/25_algorithms/for_each/constrained.cc: New test.
   6545  1.1.1.20  mrg 	* testsuite/25_algorithms/generate/constrained.cc: New test.
   6546  1.1.1.20  mrg 	* testsuite/25_algorithms/generate_n/constrained.cc: New test.
   6547  1.1.1.20  mrg 	* testsuite/25_algorithms/heap/constrained.cc: New test.
   6548  1.1.1.20  mrg 	* testsuite/25_algorithms/includes/constrained.cc: New test.
   6549  1.1.1.20  mrg 	* testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
   6550  1.1.1.20  mrg 	* testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
   6551  1.1.1.20  mrg 	* testsuite/25_algorithms/is_permutation/constrained.cc: New test.
   6552  1.1.1.20  mrg 	* testsuite/25_algorithms/is_sorted/constrained.cc: New test.
   6553  1.1.1.20  mrg 	* testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
   6554  1.1.1.20  mrg 	* testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
   6555  1.1.1.19  mrg 	test.
   6556  1.1.1.20  mrg 	* testsuite/25_algorithms/lower_bound/constrained.cc: New test.
   6557  1.1.1.20  mrg 	* testsuite/25_algorithms/max/constrained.cc: New test.
   6558  1.1.1.20  mrg 	* testsuite/25_algorithms/max_element/constrained.cc: New test.
   6559  1.1.1.20  mrg 	* testsuite/25_algorithms/merge/constrained.cc: New test.
   6560  1.1.1.20  mrg 	* testsuite/25_algorithms/min/constrained.cc: New test.
   6561  1.1.1.20  mrg 	* testsuite/25_algorithms/min_element/constrained.cc: New test.
   6562  1.1.1.20  mrg 	* testsuite/25_algorithms/minmax/constrained.cc: New test.
   6563  1.1.1.20  mrg 	* testsuite/25_algorithms/minmax_element/constrained.cc: New test.
   6564  1.1.1.20  mrg 	* testsuite/25_algorithms/mismatch/constrained.cc: New test.
   6565  1.1.1.20  mrg 	* testsuite/25_algorithms/move/constrained.cc: New test.
   6566  1.1.1.20  mrg 	* testsuite/25_algorithms/move_backward/constrained.cc: New test.
   6567  1.1.1.20  mrg 	* testsuite/25_algorithms/next_permutation/constrained.cc: New test.
   6568  1.1.1.20  mrg 	* testsuite/25_algorithms/none_of/constrained.cc: New test.
   6569  1.1.1.20  mrg 	* testsuite/25_algorithms/nth_element/constrained.cc: New test.
   6570  1.1.1.20  mrg 	* testsuite/25_algorithms/partial_sort/constrained.cc: New test.
   6571  1.1.1.20  mrg 	* testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
   6572  1.1.1.20  mrg 	* testsuite/25_algorithms/partition/constrained.cc: New test.
   6573  1.1.1.20  mrg 	* testsuite/25_algorithms/partition_copy/constrained.cc: New test.
   6574  1.1.1.20  mrg 	* testsuite/25_algorithms/partition_point/constrained.cc: New test.
   6575  1.1.1.20  mrg 	* testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
   6576  1.1.1.20  mrg 	* testsuite/25_algorithms/remove/constrained.cc: New test.
   6577  1.1.1.20  mrg 	* testsuite/25_algorithms/remove_copy/constrained.cc: New test.
   6578  1.1.1.20  mrg 	* testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
   6579  1.1.1.20  mrg 	* testsuite/25_algorithms/remove_if/constrained.cc: New test.
   6580  1.1.1.20  mrg 	* testsuite/25_algorithms/replace/constrained.cc: New test.
   6581  1.1.1.20  mrg 	* testsuite/25_algorithms/replace_copy/constrained.cc: New test.
   6582  1.1.1.20  mrg 	* testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
   6583  1.1.1.20  mrg 	* testsuite/25_algorithms/replace_if/constrained.cc: New test.
   6584  1.1.1.20  mrg 	* testsuite/25_algorithms/reverse/constrained.cc: New test.
   6585  1.1.1.20  mrg 	* testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
   6586  1.1.1.20  mrg 	* testsuite/25_algorithms/rotate/constrained.cc: New test.
   6587  1.1.1.20  mrg 	* testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
   6588  1.1.1.20  mrg 	* testsuite/25_algorithms/search/constrained.cc: New test.
   6589  1.1.1.20  mrg 	* testsuite/25_algorithms/search_n/constrained.cc: New test.
   6590  1.1.1.20  mrg 	* testsuite/25_algorithms/set_difference/constrained.cc: New test.
   6591  1.1.1.20  mrg 	* testsuite/25_algorithms/set_intersection/constrained.cc: New test.
   6592  1.1.1.20  mrg 	* testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
   6593  1.1.1.20  mrg 	test.
   6594  1.1.1.20  mrg 	* testsuite/25_algorithms/set_union/constrained.cc: New test.
   6595  1.1.1.20  mrg 	* testsuite/25_algorithms/shuffle/constrained.cc: New test.
   6596  1.1.1.20  mrg 	* testsuite/25_algorithms/sort/constrained.cc: New test.
   6597  1.1.1.20  mrg 	* testsuite/25_algorithms/stable_partition/constrained.cc: New test.
   6598  1.1.1.20  mrg 	* testsuite/25_algorithms/stable_sort/constrained.cc: New test.
   6599  1.1.1.20  mrg 	* testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
   6600  1.1.1.20  mrg 	* testsuite/25_algorithms/transform/constrained.cc: New test.
   6601  1.1.1.20  mrg 	* testsuite/25_algorithms/unique/constrained.cc: New test.
   6602  1.1.1.20  mrg 	* testsuite/25_algorithms/unique_copy/constrained.cc: New test.
   6603  1.1.1.20  mrg 	* testsuite/25_algorithms/upper_bound/constrained.cc: New test.
   6604  1.1.1.20  mrg 
   6605  1.1.1.20  mrg 2020-02-06  Jonathan Wakely  <jwakely (a] redhat.com>
   6606  1.1.1.20  mrg 
   6607  1.1.1.20  mrg 	* include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
   6608  1.1.1.20  mrg 	number in comment. Fix indentation.
   6609  1.1.1.20  mrg 
   6610  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
   6611  1.1.1.20  mrg 	redundant _GLIBCXX20_CONSTEXPR.
   6612  1.1.1.20  mrg 
   6613  1.1.1.20  mrg 	* include/std/ranges (viewable_range): Replace decay_t with
   6614  1.1.1.20  mrg 	remove_cvref_t (LWG 3375).
   6615  1.1.1.20  mrg 
   6616  1.1.1.20  mrg 2020-02-05  Jonathan Wakely  <jwakely (a] redhat.com>
   6617  1.1.1.20  mrg 
   6618  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (iter_reference_t)
   6619  1.1.1.20  mrg 	(iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
   6620  1.1.1.20  mrg 	Remove workarounds for PR c++/67704.
   6621  1.1.1.20  mrg 	* testsuite/24_iterators/aliases.cc: New test.
   6622  1.1.1.20  mrg 
   6623  1.1.1.20  mrg 2020-02-05  Patrick Palka  <ppalka (a] redhat.com>
   6624  1.1.1.20  mrg 
   6625  1.1.1.20  mrg 	* include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
   6626  1.1.1.20  mrg 	when initializing _M_current.
   6627  1.1.1.20  mrg 	(move_iterator::base): Split into two overloads differing in
   6628  1.1.1.20  mrg 	ref-qualifiers as in P1207R4 for C++20.
   6629  1.1.1.15  mrg 
   6630  1.1.1.20  mrg 2020-02-04  Jonathan Wakely  <jwakely (a] redhat.com>
   6631  1.1.1.15  mrg 
   6632  1.1.1.20  mrg 	* include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
   6633  1.1.1.20  mrg 	use.
   6634  1.1.1.20  mrg 
   6635  1.1.1.20  mrg 	PR libstdc++/93562
   6636  1.1.1.20  mrg 	* include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
   6637  1.1.1.20  mrg 	(unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
   6638  1.1.1.20  mrg 	* testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
   6639  1.1.1.20  mrg 
   6640  1.1.1.20  mrg 2020-02-01  Andrew Burgess  <andrew.burgess (a] embecosm.com>
   6641  1.1.1.20  mrg 
   6642  1.1.1.20  mrg 	* configure: Regenerate.
   6643  1.1.1.20  mrg 
   6644  1.1.1.20  mrg 2020-01-31  Patrick Palka  <ppalka (a] redhat.com>
   6645  1.1.1.20  mrg 
   6646  1.1.1.20  mrg 	* testsuite/24_iterators/range_operations/distance.cc: Do not assume
   6647  1.1.1.20  mrg 	test_range::end() returns the same type as test_range::begin().
   6648  1.1.1.20  mrg 	* testsuite/24_iterators/range_operations/next.cc: Likewise.
   6649  1.1.1.20  mrg 	* testsuite/24_iterators/range_operations/prev.cc: Likewise.
   6650  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
   6651  1.1.1.20  mrg 	Always return a sentinel<I>.
   6652  1.1.1.20  mrg 
   6653  1.1.1.20  mrg 2020-01-29  Jonathan Wakely  <jwakely (a] redhat.com>
   6654  1.1.1.20  mrg 
   6655  1.1.1.20  mrg 	PR libstdc++/92895
   6656  1.1.1.20  mrg 	* include/std/stop_token (stop_token::stop_possible()): Call new
   6657  1.1.1.20  mrg 	_M_stop_possible() function.
   6658  1.1.1.20  mrg 	(stop_token::stop_requested()): Do not use stop_possible().
   6659  1.1.1.20  mrg 	(stop_token::binary_semaphore): New class, as temporary stand-in for
   6660  1.1.1.20  mrg 	std::binary_semaphore.
   6661  1.1.1.20  mrg 	(stop_token::_Stop_cb::_M_callback): Add noexcept to type.
   6662  1.1.1.20  mrg 	(stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
   6663  1.1.1.20  mrg 	New data members for symchronization with stop_callback destruction.
   6664  1.1.1.20  mrg 	(stop_token::_Stop_cb::_Stop_cb): Make non-template.
   6665  1.1.1.20  mrg 	(stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
   6666  1.1.1.20  mrg 	Remove.
   6667  1.1.1.20  mrg 	(stop_token::_Stop_cb::_M_run): New member function.
   6668  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
   6669  1.1.1.20  mrg 	Remove.
   6670  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_owners): New data member to track
   6671  1.1.1.20  mrg 	reference count for ownership.
   6672  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_value): New data member combining a
   6673  1.1.1.20  mrg 	spinlock, the stop requested flag, and the reference count for
   6674  1.1.1.20  mrg 	associated stop_source objects.
   6675  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_requester): New data member for
   6676  1.1.1.20  mrg 	synchronization with stop_callback destruction.
   6677  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_stop_possible()): New member function.
   6678  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
   6679  1.1.1.20  mrg 	of _M_value.
   6680  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_add_owner)
   6681  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_release_ownership)
   6682  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_add_ssrc)
   6683  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_sub_ssrc): New member functions for
   6684  1.1.1.20  mrg 	updating reference counts.
   6685  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
   6686  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
   6687  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_try_lock)
   6688  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_try_lock_and_stop)
   6689  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_do_try_lock): New member functions for
   6690  1.1.1.20  mrg 	managing spinlock.
   6691  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_request_stop): Use atomic operations to
   6692  1.1.1.20  mrg 	read and update state. Release lock while running callbacks. Use new
   6693  1.1.1.20  mrg 	data members to synchronize with callback destruction.
   6694  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_remove_callback): Likewise.
   6695  1.1.1.20  mrg 	(stop_token::_Stop_state::_M_register_callback): Use atomic operations
   6696  1.1.1.20  mrg 	to read and update state.
   6697  1.1.1.20  mrg 	(stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
   6698  1.1.1.20  mrg 	replacing shared_ptr.
   6699  1.1.1.20  mrg 	(stop_source::stop_source(const stop_source&)): Update reference count.
   6700  1.1.1.20  mrg 	(stop_source::operator=(const stop_source&)): Likewise.
   6701  1.1.1.20  mrg 	(stop_source::~stop_source()): Likewise.
   6702  1.1.1.20  mrg 	(stop_source::stop_source(stop_source&&)): Define as defaulted.
   6703  1.1.1.20  mrg 	(stop_source::operator=(stop_source&&)): Establish postcondition on
   6704  1.1.1.20  mrg 	parameter.
   6705  1.1.1.20  mrg 	(stop_callback): Enforce preconditions on template parameter. Replace
   6706  1.1.1.20  mrg 	base class with data member of new _Cb_impl type.
   6707  1.1.1.20  mrg 	(stop_callback::stop_callback(const stop_token&, Cb&&))
   6708  1.1.1.20  mrg 	(stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
   6709  1.1.1.20  mrg 	(stop_callback::_Cb_impl): New type wrapping _Callback member and
   6710  1.1.1.20  mrg 	defining the _S_execute member function.
   6711  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
   6712  1.1.1.20  mrg 	test.
   6713  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
   6714  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
   6715  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
   6716  1.1.1.19  mrg 	New test.
   6717  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
   6718  1.1.1.20  mrg 	test.
   6719  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
   6720  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
   6721  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
   6722  1.1.1.20  mrg 	test.
   6723  1.1.1.15  mrg 
   6724  1.1.1.20  mrg 	* libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
   6725  1.1.1.20  mrg 	three_way_comparable_with.
   6726  1.1.1.20  mrg 	(__detail::__3way_cmp_with): Remove workaround for fixed bug.
   6727  1.1.1.20  mrg 	(compare_three_way::operator()): Remove redundant constraint from
   6728  1.1.1.20  mrg 	requires-clause.
   6729  1.1.1.20  mrg 	(__detail::_Synth3way::operator()): Use three_way_comparable_with
   6730  1.1.1.20  mrg 	instead of workaround.
   6731  1.1.1.20  mrg 	* testsuite/18_support/comparisons/object/93479.cc: Prune extra
   6732  1.1.1.20  mrg 	output due to simplified constraints on compare_three_way::operator().
   6733  1.1.1.20  mrg 
   6734  1.1.1.20  mrg 	PR libstdc++/93479
   6735  1.1.1.20  mrg 	* libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
   6736  1.1.1.20  mrg 	* testsuite/18_support/comparisons/object/93479.cc: New test.
   6737  1.1.1.20  mrg 
   6738  1.1.1.20  mrg 	* testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
   6739  1.1.1.20  mrg 	returns the same type as test_range::begin(). Add comments.
   6740  1.1.1.20  mrg 	* testsuite/std/ranges/access/rbegin.cc: Likewise.
   6741  1.1.1.20  mrg 	* testsuite/std/ranges/access/rend.cc: Likewise.
   6742  1.1.1.20  mrg 	* testsuite/std/ranges/range.cc: Do not assume the sentinel for
   6743  1.1.1.20  mrg 	test_range is the same as its iterator type.
   6744  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
   6745  1.1.1.20  mrg 	operator- overloads to satisfy sized_sentinel_for when the iterator
   6746  1.1.1.20  mrg 	satisfies random_access_iterator.
   6747  1.1.1.15  mrg 
   6748  1.1.1.20  mrg 2020-01-28  Jonathan Wakely  <jwakely (a] redhat.com>
   6749  1.1.1.15  mrg 
   6750  1.1.1.20  mrg 	PR libstdc++/93470
   6751  1.1.1.20  mrg 	* include/bits/refwrap.h (reference_wrapper::operator()): Restrict
   6752  1.1.1.20  mrg 	static assertion to object types.
   6753  1.1.1.15  mrg 
   6754  1.1.1.20  mrg 	PR libstdc++/93325
   6755  1.1.1.20  mrg 	* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
   6756  1.1.1.20  mrg 	clock_gettime instead of explicit glibc version check.
   6757  1.1.1.20  mrg 	* configure: Regenerate.
   6758  1.1.1.13  mrg 
   6759  1.1.1.20  mrg 2020-01-28  Martin Liska  <mliska (a] suse.cz>
   6760  1.1.1.13  mrg 
   6761  1.1.1.20  mrg 	PR libstdc++/93478
   6762  1.1.1.20  mrg 	* include/std/atomic: Fix typo.
   6763  1.1.1.20  mrg 	* include/std/optional: Likewise.
   6764  1.1.1.18  mrg 
   6765  1.1.1.20  mrg 2020-01-27  Andrew Burgess  <andrew.burgess (a] embecosm.com>
   6766  1.1.1.18  mrg 
   6767  1.1.1.19  mrg 	* configure: Regenerate.
   6768  1.1.1.18  mrg 
   6769  1.1.1.20  mrg 2020-01-27  Jonathan Wakely  <jwakely (a] redhat.com>
   6770  1.1.1.18  mrg 
   6771  1.1.1.20  mrg 	PR libstdc++/93426
   6772  1.1.1.20  mrg 	* include/std/span (span): Fix deduction guide.
   6773  1.1.1.20  mrg 	* testsuite/23_containers/span/deduction.cc: New test.
   6774  1.1.1.18  mrg 
   6775  1.1.1.20  mrg 2020-01-24  Jonathan Wakely  <jwakely (a] redhat.com>
   6776  1.1.1.19  mrg 
   6777  1.1.1.20  mrg 	* libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
   6778  1.1.1.20  mrg 	(__cmp_cat::_Ord::equivalent): Add enumerator.
   6779  1.1.1.20  mrg 	(__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
   6780  1.1.1.20  mrg 	and greater.
   6781  1.1.1.20  mrg 	(partial_ordering, weak_ordering, strong_ordering): Remove
   6782  1.1.1.20  mrg 	constructors taking __cmp_cat::_Eq parameters. Use renamed
   6783  1.1.1.20  mrg 	enumerators.
   6784  1.1.1.19  mrg 
   6785  1.1.1.20  mrg 2020-01-24  Maciej W. Rozycki  <macro (a] wdc.com>
   6786  1.1.1.18  mrg 
   6787  1.1.1.20  mrg 	* acinclude.m4: Handle `--with-toolexeclibdir='.
   6788  1.1.1.20  mrg 	* Makefile.in: Regenerate.
   6789  1.1.1.20  mrg 	* aclocal.m4: Regenerate.
   6790  1.1.1.20  mrg 	* configure: Regenerate.
   6791  1.1.1.20  mrg 	* doc/Makefile.in: Regenerate.
   6792  1.1.1.20  mrg 	* include/Makefile.in: Regenerate.
   6793  1.1.1.20  mrg 	* libsupc++/Makefile.in: Regenerate.
   6794  1.1.1.20  mrg 	* po/Makefile.in: Regenerate.
   6795  1.1.1.20  mrg 	* python/Makefile.in: Regenerate.
   6796  1.1.1.20  mrg 	* src/Makefile.in: Regenerate.
   6797  1.1.1.20  mrg 	* src/c++11/Makefile.in: Regenerate.
   6798  1.1.1.20  mrg 	* src/c++17/Makefile.in: Regenerate.
   6799  1.1.1.20  mrg 	* src/c++98/Makefile.in: Regenerate.
   6800  1.1.1.20  mrg 	* src/filesystem/Makefile.in: Regenerate.
   6801  1.1.1.20  mrg 	* testsuite/Makefile.in: Regenerate.
   6802  1.1.1.19  mrg 
   6803  1.1.1.20  mrg 2020-01-23  Alexandre Oliva <oliva (a] adacore.com>
   6804  1.1.1.19  mrg 
   6805  1.1.1.20  mrg 	* crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
   6806  1.1.1.20  mrg 	* configure: Rebuild.
   6807  1.1.1.19  mrg 
   6808  1.1.1.20  mrg 	* testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
   6809  1.1.1.19  mrg 
   6810  1.1.1.20  mrg 2020-01-23  Jonathan Wakely  <jwakely (a] redhat.com>
   6811  1.1.1.18  mrg 
   6812  1.1.1.20  mrg 	PR libstdc++/91947
   6813  1.1.1.20  mrg 	* include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
   6814  1.1.1.20  mrg 	rule.
   6815  1.1.1.20  mrg 	* include/Makefile.in: Regenerate.
   6816  1.1.1.19  mrg 
   6817  1.1.1.20  mrg 2020-01-20  Jonathan Wakely  <jwakely (a] redhat.com>
   6818  1.1.1.19  mrg 
   6819  1.1.1.20  mrg 	* doc/xml/faq.xml: Fix grammar.
   6820  1.1.1.20  mrg 	* doc/xml/manual/appendix_contributing.xml: Improve instructions.
   6821  1.1.1.20  mrg 	* doc/xml/manual/spine.xml: Update copyright years.
   6822  1.1.1.20  mrg 	* doc/html/*: Regenerate.
   6823  1.1.1.19  mrg 
   6824  1.1.1.20  mrg 2020-01-19  Eric S. Raymond <esr (a] thyrsus.com>
   6825  1.1.1.19  mrg 
   6826  1.1.1.20  mrg 	* doc/xml/faq.xml: Update for SVN -> Git transition.
   6827  1.1.1.20  mrg 	* doc/xml/manual/appendix_contributing.xml: Likewise.
   6828  1.1.1.20  mrg 	* doc/xml/manual/status_cxx1998.xml: Likewise.
   6829  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2011.xml: Likewise.
   6830  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2014.xml: Likewise.
   6831  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2017.xml: Likewise.
   6832  1.1.1.20  mrg 	* doc/xml/manual/status_cxx2020.xml: Likewise.
   6833  1.1.1.20  mrg 	* doc/xml/manual/status_cxxtr1.xml: Likewise.
   6834  1.1.1.20  mrg 	* doc/xml/manual/status_cxxtr24733.xml: Likewise.
   6835  1.1.1.18  mrg 
   6836  1.1.1.20  mrg 2020-01-18  Iain Sandoe  <iain (a] sandoe.co.uk>
   6837  1.1.1.18  mrg 
   6838  1.1.1.20  mrg 	* include/Makefile.am: Add coroutine to the std set.
   6839  1.1.1.20  mrg 	* include/Makefile.in: Regenerated.
   6840  1.1.1.20  mrg 	* include/std/coroutine: New file.
   6841  1.1.1.19  mrg 
   6842  1.1.1.20  mrg 2020-01-17  Jonathan Wakely  <jwakely (a] redhat.com>
   6843  1.1.1.19  mrg 
   6844  1.1.1.20  mrg 	PR libstdc++/92376
   6845  1.1.1.20  mrg 	* include/bits/c++config: Only do PSTL config when the header is
   6846  1.1.1.20  mrg 	present, to fix freestanding.
   6847  1.1.1.20  mrg 	* libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
   6848  1.1.1.20  mrg 	functions if they were detected by configure.
   6849  1.1.1.19  mrg 
   6850  1.1.1.20  mrg 2020-01-16  Kai-Uwe Eckhardt  <kuehro (a] gmx.de>
   6851  1.1.1.20  mrg 	    Matthew Bauer  <mjbauer95 (a] gmail.com>
   6852  1.1.1.19  mrg 	    Jonathan Wakely  <jwakely (a] redhat.com>
   6853  1.1.1.19  mrg 
   6854  1.1.1.20  mrg 	PR bootstrap/64271 (partial)
   6855  1.1.1.20  mrg 	* config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
   6856  1.1.1.20  mrg 	to unsigned short.
   6857  1.1.1.20  mrg 	(ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
   6858  1.1.1.20  mrg 	(ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
   6859  1.1.1.20  mrg 	definitions with NetBSD upstream.
   6860  1.1.1.20  mrg 	(ctype_base::blank): Use _CTYPE_BL.
   6861  1.1.1.20  mrg 	* config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
   6862  1.1.1.20  mrg 	Declaration.
   6863  1.1.1.20  mrg 	(ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
   6864  1.1.1.20  mrg 	(ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
   6865  1.1.1.20  mrg 	parameters to unsigned char.
   6866  1.1.1.20  mrg 	* config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
   6867  1.1.1.20  mrg 
   6868  1.1.1.20  mrg 2020-01-16  Franois Dumont  <fdumont (a] gcc.gnu.org>
   6869  1.1.1.20  mrg 
   6870  1.1.1.20  mrg 	PR libstdc++/91263
   6871  1.1.1.20  mrg 	* include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
   6872  1.1.1.20  mrg 	* include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
   6873  1.1.1.20  mrg 	(_Equality_base): Remove.
   6874  1.1.1.20  mrg 	(_Equality<>::_M_equal): Review implementation. Use
   6875  1.1.1.20  mrg 	std::is_permutation.
   6876  1.1.1.20  mrg 	* testsuite/23_containers/unordered_multiset/operators/1.cc
   6877  1.1.1.20  mrg 	(Hash, Equal, test02, test03): New.
   6878  1.1.1.20  mrg 	* testsuite/23_containers/unordered_set/operators/1.cc
   6879  1.1.1.20  mrg 	(Hash, Equal, test02, test03): New.
   6880  1.1.1.20  mrg 
   6881  1.1.1.20  mrg 2020-01-15  Jonathan Wakely  <jwakely (a] redhat.com>
   6882  1.1.1.20  mrg 
   6883  1.1.1.20  mrg 	PR libstdc++/93267
   6884  1.1.1.20  mrg 	* include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
   6885  1.1.1.20  mrg 	Move here from <bits/range_access.h> and define using __int128 when
   6886  1.1.1.20  mrg 	available.
   6887  1.1.1.20  mrg 	(__is_integer_like, __is_signed_integer_like): Move here from
   6888  1.1.1.20  mrg 	<bits/range_access.h>.
   6889  1.1.1.20  mrg 	(weakly_incrementable): Use __is_signed_integer_like.
   6890  1.1.1.20  mrg 	* include/bits/range_access.h (__max_diff_type, __max_size_type)
   6891  1.1.1.20  mrg 	(__is_integer_like, __is_signed_integer_like): Move to
   6892  1.1.1.20  mrg 	<bits/iterator_concepts.h>.
   6893  1.1.1.20  mrg 	(__make_unsigned_like_t): Move here from <ranges>.
   6894  1.1.1.20  mrg 	* include/std/ranges (__make_unsigned_like_t): Move to
   6895  1.1.1.20  mrg 	<bits/range_access.h>.
   6896  1.1.1.20  mrg 	(iota_view): Replace using-directive with using-declarations.
   6897  1.1.1.20  mrg 	* testsuite/std/ranges/iota/93267.cc: New test.
   6898  1.1.1.20  mrg 	* testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
   6899  1.1.1.18  mrg 
   6900  1.1.1.20  mrg 2020-01-13  Jonathan Wakely  <jwakely (a] redhat.com>
   6901  1.1.1.18  mrg 
   6902  1.1.1.20  mrg 	PR libstdc++/93244
   6903  1.1.1.20  mrg 	* include/bits/fs_path.h (path::generic_string<C,A>)
   6904  1.1.1.20  mrg 	[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
   6905  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
   6906  1.1.1.20  mrg 	root-dir is converted to forward slash in generic pathname.
   6907  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/utf.cc: New test.
   6908  1.1.1.20  mrg 	* testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
   6909  1.1.1.18  mrg 
   6910  1.1.1.20  mrg 	PR libstdc++/58605
   6911  1.1.1.20  mrg 	* include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
   6912  1.1.1.19  mrg 	Define.
   6913  1.1.1.20  mrg 	(__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
   6914  1.1.1.20  mrg 	(__atomic_float): Add default member initializer for C++20.
   6915  1.1.1.20  mrg 	* include/std/atomic (atomic): Likewise.
   6916  1.1.1.20  mrg 	(atomic::atomic()): Remove noexcept-specifier on default constructor.
   6917  1.1.1.20  mrg 	* include/std/version (__cpp_lib_atomic_value_initialization): Define.
   6918  1.1.1.20  mrg 	* testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
   6919  1.1.1.20  mrg 	number.
   6920  1.1.1.20  mrg 	* testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
   6921  1.1.1.20  mrg 	* testsuite/29_atomics/atomic/cons/value_init.cc: New test.
   6922  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
   6923  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
   6924  1.1.1.20  mrg 	expected result for is_trivially_default_constructible.
   6925  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
   6926  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_float/value_init.cc: New test.
   6927  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
   6928  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
   6929  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_integral/cons/value_init.cc
   6930  1.1.1.20  mrg 	* testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
   6931  1.1.1.20  mrg 	expected results for is_trivially_default_constructible.
   6932  1.1.1.20  mrg 	* testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
   6933  1.1.1.20  mrg 	new test generator.
   6934  1.1.1.20  mrg 
   6935  1.1.1.20  mrg 2020-01-10  Jonathan Wakely  <jwakely (a] redhat.com>
   6936  1.1.1.20  mrg 
   6937  1.1.1.20  mrg 	* testsuite/util/testsuite_iterators.h: Improve comment.
   6938  1.1.1.20  mrg 
   6939  1.1.1.20  mrg 	* testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
   6940  1.1.1.20  mrg 	initialization syntax.
   6941  1.1.1.20  mrg 
   6942  1.1.1.20  mrg 	PR libstdc++/92285
   6943  1.1.1.20  mrg 	* include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
   6944  1.1.1.20  mrg 	of base class independent of __cplusplus value.
   6945  1.1.1.20  mrg 	[__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
   6946  1.1.1.20  mrg 	type defined in the base class
   6947  1.1.1.20  mrg 	* testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
   6948  1.1.1.20  mrg 	* testsuite/24_iterators/istreambuf_iterator/requirements/
   6949  1.1.1.20  mrg 	base_classes.cc: Adjust expected base class for C++98.
   6950  1.1.1.20  mrg 
   6951  1.1.1.20  mrg 2020-01-09  Olivier Hainque  <hainque (a] adacore.com>
   6952  1.1.1.20  mrg 
   6953  1.1.1.20  mrg 	* doc/xml/manual/appendix_contributing.xml: Document _C2
   6954  1.1.1.20  mrg 	as a reserved identifier, by VxWorks.
   6955  1.1.1.20  mrg 	* include/bits/stl_map.h: Rename _C2 template typenames	as _Cmp2.
   6956  1.1.1.20  mrg 	* include/bits/stl_multimap.h: Likewise.
   6957  1.1.1.20  mrg 
   6958  1.1.1.20  mrg 2020-01-09  Jonathan Wakely  <jwakely (a] redhat.com>
   6959  1.1.1.20  mrg 
   6960  1.1.1.20  mrg 	* include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
   6961  1.1.1.20  mrg 	(_ExtPtr_allocator::operator!=): Add missing const qualifiers.
   6962  1.1.1.20  mrg 	* include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
   6963  1.1.1.20  mrg 	partial specialization to disambiguate the two constrained
   6964  1.1.1.20  mrg 	specializations.
   6965  1.1.1.20  mrg 
   6966  1.1.1.20  mrg 	* include/experimental/type_traits (experimental::is_pod_v): Disable
   6967  1.1.1.20  mrg 	-Wdeprecated-declarations warnings around reference to std::is_pod.
   6968  1.1.1.20  mrg 	* include/std/type_traits (is_pod_v): Likewise.
   6969  1.1.1.20  mrg 	* testsuite/18_support/max_align_t/requirements/2.cc: Also check
   6970  1.1.1.20  mrg 	is_standard_layout and is_trivial. Do not check is_pod for C++20.
   6971  1.1.1.20  mrg 	* testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
   6972  1.1.1.20  mrg 	Add -Wno-deprecated for C++20.
   6973  1.1.1.20  mrg 	* testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
   6974  1.1.1.20  mrg 	* testsuite/20_util/is_pod/value.cc: Likewise.
   6975  1.1.1.20  mrg 	* testsuite/experimental/type_traits/value.cc: Likewise.
   6976  1.1.1.20  mrg 
   6977  1.1.1.20  mrg 2020-01-09  JeanHeyd "ThePhD" Meneide  <phdofthehouse (a] gmail.com>
   6978  1.1.1.20  mrg 
   6979  1.1.1.20  mrg 	* include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
   6980  1.1.1.20  mrg 	* include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
   6981  1.1.1.20  mrg 	* testuite/20_util/is_pod/deprecated-2a.cc: New test.
   6982  1.1.1.20  mrg 
   6983  1.1.1.20  mrg 2020-01-09  Jonathan Wakely  <jwakely (a] redhat.com>
   6984  1.1.1.20  mrg 
   6985  1.1.1.20  mrg 	PR libstdc++/93205
   6986  1.1.1.20  mrg 	* include/bits/random.h (operator>>): Check stream operation succeeds.
   6987  1.1.1.20  mrg 	* include/bits/random.tcc (operator<<): Remove redundant __ostream_type
   6988  1.1.1.20  mrg 	typedefs.
   6989  1.1.1.20  mrg 	(operator>>): Remove redundant __istream_type typedefs. Check stream
   6990  1.1.1.20  mrg 	operations succeed.
   6991  1.1.1.20  mrg 	(__extract_params): New function to fill a vector from a stream.
   6992  1.1.1.20  mrg 	* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
   6993  1.1.1.20  mrg 
   6994  1.1.1.20  mrg 	PR libstdc++/93208
   6995  1.1.1.20  mrg 	* config/abi/pre/gnu.ver: Add new exports.
   6996  1.1.1.20  mrg 	* include/std/memory_resource (memory_resource::~memory_resource()):
   6997  1.1.1.20  mrg 	Do not define inline.
   6998  1.1.1.20  mrg 	(monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
   6999  1.1.1.20  mrg 	* src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
   7000  1.1.1.19  mrg 	Define.
   7001  1.1.1.20  mrg 	(monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
   7002  1.1.1.20  mrg 	* testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
   7003  1.1.1.17  mrg 
   7004  1.1.1.20  mrg 2020-01-09  Franois Dumont  <fdumont (a] gcc.gnu.org>
   7005  1.1.1.11  mrg 
   7006  1.1.1.20  mrg 	PR libstdc++/92124
   7007  1.1.1.20  mrg 	* include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
   7008  1.1.1.20  mrg 	template alias.
   7009  1.1.1.20  mrg 	(_Hashtable<>::__fwd_value_for): New.
   7010  1.1.1.20  mrg 	(_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
   7011  1.1.1.20  mrg 	parameter.
   7012  1.1.1.20  mrg 	(_Hashtable<>::_M_assign<>): Add _Ht template parameter.
   7013  1.1.1.20  mrg 	(_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
   7014  1.1.1.20  mrg 	(_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
   7015  1.1.1.20  mrg 	with std::move.
   7016  1.1.1.20  mrg 	(_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
   7017  1.1.1.20  mrg 	(_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
   7018  1.1.1.20  mrg 	Adapt.
   7019  1.1.1.20  mrg 	(_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
   7020  1.1.1.20  mrg 	Adapt.
   7021  1.1.1.20  mrg 	* testsuite/23_containers/unordered_set/92124.cc: New.
   7022  1.1.1.20  mrg 
   7023  1.1.1.20  mrg 2020-01-08  Jonathan Wakely  <jwakely (a] redhat.com>
   7024  1.1.1.20  mrg 
   7025  1.1.1.20  mrg 	PR libstdc++/93201
   7026  1.1.1.20  mrg 	* src/c++17/fs_ops.cc (do_remove_all): New function implementing more
   7027  1.1.1.20  mrg 	detailed error reporting for remove_all. Check result of recursive
   7028  1.1.1.20  mrg 	call before incrementing iterator.
   7029  1.1.1.20  mrg 	(remove_all(const path&), remove_all(const path&, error_code&)): Use
   7030  1.1.1.20  mrg 	do_remove_all.
   7031  1.1.1.20  mrg 	* src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
   7032  1.1.1.20  mrg 	result of recursive call before incrementing iterator.
   7033  1.1.1.20  mrg 	* testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
   7034  1.1.1.20  mrg 	are reported correctly.
   7035  1.1.1.20  mrg 	* testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
   7036  1.1.1.20  mrg 
   7037  1.1.1.20  mrg 2020-01-07  Thomas Rodgers  <trodgers (a] redhat.com>
   7038  1.1.1.20  mrg 
   7039  1.1.1.20  mrg 	* include/std/condition_variable
   7040  1.1.1.20  mrg 	(condition_variable_any::wait_on): Rename to match current draft
   7041  1.1.1.20  mrg 	standard.
   7042  1.1.1.20  mrg 	(condition_variable_any::wait_on_until): Likewise.
   7043  1.1.1.20  mrg 	(condition_variable_any::wait_on_for): Likewise.
   7044  1.1.1.20  mrg 	* testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
   7045  1.1.1.20  mrg 	Adjust tests to account for renamed methods.
   7046  1.1.1.20  mrg 
   7047  1.1.1.20  mrg 2020-01-07  Franois Dumont  <fdumont (a] gcc.gnu.org>
   7048  1.1.1.20  mrg 
   7049  1.1.1.20  mrg 	PR libstdc++/92124
   7050  1.1.1.20  mrg 	* include/bits/stl_tree.h
   7051  1.1.1.20  mrg 	(_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
   7052  1.1.1.20  mrg 	std::move_if_noexcept by std::move.
   7053  1.1.1.20  mrg 	* testsuite/23_containers/map/92124.cc: New.
   7054  1.1.1.20  mrg 	* testsuite/23_containers/set/92124.cc: New.
   7055  1.1.1.20  mrg 
   7056  1.1.1.20  mrg 2020-01-06  Jonathan Wakely  <jwakely (a] redhat.com>
   7057  1.1.1.20  mrg 
   7058  1.1.1.20  mrg 	* include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
   7059  1.1.1.20  mrg 	(stop_source): Likewise (LWG 3362).
   7060  1.1.1.20  mrg 	* testsuite/30_threads/stop_token/stop_source.cc: Test equality
   7061  1.1.1.20  mrg 	comparisons.
   7062  1.1.1.20  mrg 
   7063  1.1.1.20  mrg 	* include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
   7064  1.1.1.20  mrg 	(lexicographical_compare_three_way): Do not depend on
   7065  1.1.1.20  mrg 	__cpp_lib_concepts.
   7066  1.1.1.20  mrg 	* include/std/version (__cpp_lib_three_way_comparison): Only define
   7067  1.1.1.20  mrg 	when __cpp_lib_concepts is defined.
   7068  1.1.1.20  mrg 	* libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
   7069  1.1.1.20  mrg 
   7070  1.1.1.20  mrg 2020-01-03  Jonathan Wakely  <jwakely (a] redhat.com>
   7071  1.1.1.20  mrg 
   7072  1.1.1.20  mrg 	* include/bits/stl_algobase.h (lexicographical_compare_three_way):
   7073  1.1.1.20  mrg 	Only define four-argument overload when __cpp_lib_concepts is defined.
   7074  1.1.1.20  mrg 
   7075  1.1.1.20  mrg 2020-01-01  John David Anglin  <danglin (a] gcc.gnu.org>
   7076  1.1.1.20  mrg 
   7077  1.1.1.20  mrg 	* config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
   7078  1.1.1.14  mrg 
   7079  1.1.1.20  mrg 2020-01-01  Jakub Jelinek  <jakub (a] redhat.com>
   7080       1.1  mrg 
   7081   1.1.1.9  mrg 	Update copyright years.
   7082   1.1.1.3  mrg 
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