ChangeLog revision 1.1.1.22
1 2023-07-07 Release Manager 2 3 * GCC 10.5.0 released. 4 5 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 6 7 Backported from master: 8 2021-10-11 Jonathan Wakely <jwakely (a] redhat.com> 9 10 * testsuite/18_support/numeric_limits/lowest.cc: Use 11 numeric_limits<T>::is_integer instead of is_integral<T>::value. 12 13 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 14 15 Backported from master: 16 2023-06-01 Jonathan Wakely <jwakely (a] redhat.com> 17 18 * doc/xml/manual/evolution.xml: Document removal of implicit 19 allocator rebinding extensions in strict mode and for C++20. 20 * doc/html/*: Regenerate. 21 22 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 23 24 Backported from master: 25 2022-12-16 Jonathan Wakely <jwakely (a] redhat.com> 26 27 PR libstdc++/108118 28 * include/bits/shared_ptr_base.h (weak_ptr::operator=): 29 Implement as move-and-swap exactly as specified in the standard. 30 * testsuite/20_util/weak_ptr/cons/self_move.cc: New test. 31 32 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 33 34 Backported from master: 35 2020-06-17 Jonathan Wakely <jwakely (a] redhat.com> 36 37 PR libstdc++/94540 38 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>): 39 Construct the first value at *__first instead of on the stack. 40 (__uninitialized_default_n_1<true>): Likewise. 41 Improve comments on several of the non-standard algorithms. 42 * testsuite/20_util/specialized_algorithms/uninitialized_default/94540.cc: 43 New test. 44 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/94540.cc: 45 New test. 46 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/94540.cc: 47 New test. 48 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/94540.cc: 49 New test. 50 * testsuite/23_containers/vector/cons/94540.cc: New test. 51 52 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 53 54 Backported from master: 55 2022-08-22 Jonathan Wakely <jwakely (a] redhat.com> 56 57 PR libstdc++/106607 58 * include/bits/regex_compiler.tcc (_Compiler::_M_cur_int_value): 59 Use built-ins to check for integer overflow in back-reference 60 number. 61 * testsuite/28_regex/basic_regex/106607.cc: New test. 62 63 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 64 65 Backported from master: 66 2021-09-28 Jonathan Wakely <jwakely (a] redhat.com> 67 68 * include/bits/regex.h (basic_regex, swap): Add noexcept to 69 non-throwing functions. 70 * include/bits/regex_automaton.h (_State_base, _State) 71 (_NFA_base): Likewise. 72 * include/bits/regex_compiler.h (_Compiler): Likewise. 73 * include/bits/regex_error.h (regex_error::code()): Likewise. 74 * include/bits/regex_scanner.h (_Scanner): Likewise. 75 76 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 77 78 Backported from master: 79 2021-12-14 Jonathan Wakely <jwakely (a] redhat.com> 80 81 PR libstdc++/102447 82 * include/bits/regex_compiler.h (_Compiler::_BracketState): New 83 class. 84 (_Compiler::_BrackeyMatcher): New alias template. 85 (_Compiler::_M_expression_term): Change pair<bool, CharT> 86 parameter to _BracketState. Process first character for 87 ECMAScript syntax as well as POSIX. 88 * include/bits/regex_compiler.tcc 89 (_Compiler::_M_insert_bracket_matcher): Pass _BracketState. 90 (_Compiler::_M_expression_term): Use _BracketState to store 91 state between calls. Improve handling of dashes in ranges. 92 * testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc: 93 Add more tests for ranges containing dashes. Check invalid 94 ranges with character class at the beginning. 95 96 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 97 98 Backported from master: 99 2021-09-29 Jonathan Wakely <jwakely (a] redhat.com> 100 101 * include/bits/regex_compiler.h (_Compiler::_S_validate): New 102 function. 103 * include/bits/regex_compiler.tcc (_Compiler::_Compiler): Use 104 _S_validate to check flags. 105 * include/bits/regex_error.h (_S_grammar): New error code for 106 internal use. 107 * testsuite/28_regex/basic_regex/ctors/grammar.cc: New test. 108 109 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 110 111 Backported from master: 112 2021-09-28 Jonathan Wakely <jwakely (a] redhat.com> 113 114 * include/bits/regex_compiler.tcc: Add line break in empty while 115 statement. 116 * include/bits/regex_executor.tcc: Avoid unused parameter 117 warning. 118 119 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 120 121 Backported from master: 122 2021-12-13 Jonathan Wakely <jwakely (a] redhat.com> 123 124 PR libstdc++/103664 125 * include/bits/regex.h (__regex_replace): Declare. 126 (regex_replace): Use it. 127 * include/bits/regex.tcc (__regex_replace): Replace regex_replace 128 definition with __regex_replace. 129 * testsuite/28_regex/algorithms/regex_replace/char/103664.cc: New test. 130 131 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 132 133 Backported from master: 134 2021-09-29 Jonathan Wakely <jwakely (a] redhat.com> 135 136 PR libstdc++/84110 137 * include/bits/regex_error.h (regex_constants::_S_null): New 138 error code for internal use. 139 * include/bits/regex_scanner.tcc (_Scanner::_M_scan_normal()): 140 Check for null character. 141 * testsuite/28_regex/basic_regex/84110.cc: New test. 142 143 2023-06-23 Jonathan Wakely <jwakely (a] redhat.com> 144 145 Backported from master: 146 2020-09-11 Jonathan Wakely <jwakely (a] redhat.com> 147 148 * include/bits/regex_error.h (__throw_regex_error): Fix 149 parameter declaration and use reserved attribute names. 150 151 2023-06-23 Christophe Lyon <christophe.lyon (a] linaro.org> 152 153 Backported from master: 154 2020-09-11 Christophe Lyon <christophe.lyon (a] linaro.org> 155 156 * include/bits/regex_error.h: Avoid warning with -fno-exceptions. 157 158 2023-05-21 Iain Sandoe <iain (a] sandoe.co.uk> 159 160 * include/bits/fs_path.h: Rename __null_terminated to __nul_terminated 161 to avoid colliding with a macro in Darwin system headers. 162 163 2023-05-03 Jonathan Wakely <jwakely (a] redhat.com> 164 165 PR libstdc++/105844 166 * include/std/numeric (lcm): Ensure out-of-range result is 167 detected in constant evaluation. 168 * testsuite/26_numerics/lcm/105844.cc: Adjust dg-error string. 169 170 2023-05-03 Jonathan Wakely <jwakely (a] redhat.com> 171 172 Backported from master: 173 2022-06-10 Jonathan Wakely <jwakely (a] redhat.com> 174 175 PR libstdc++/105844 176 * include/experimental/numeric (experimental::gcd): Simplify 177 assertions. Use __abs_r instead of __absu. 178 (experimental::lcm): Likewise. Remove use of __detail::__lcm so 179 overflow can be detected. 180 * include/std/numeric (__detail::__absu): Rename to __abs_r and 181 change to allow signed result type, so overflow can be detected. 182 (__detail::__lcm): Remove. 183 (gcd): Simplify assertions. Use __abs_r instead of __absu. 184 (lcm): Likewise. Remove use of __detail::__lcm so overflow can 185 be detected. 186 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error lines. 187 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise. 188 * testsuite/26_numerics/gcd/105844.cc: New test. 189 * testsuite/26_numerics/lcm/105844.cc: New test. 190 191 2023-05-03 Jonathan Wakely <jwakely (a] redhat.com> 192 193 Backported from master: 194 2023-04-28 Jonathan Wakely <jwakely (a] redhat.com> 195 196 * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes 197 from header paths. 198 199 2023-04-28 Jonathan Wakely <jwakely (a] redhat.com> 200 201 Backported from master: 202 2020-11-24 Jonathan Wakely <jwakely (a] redhat.com> 203 204 PR libstdc++/67791 205 * src/c++11/thread.cc (thread::_M_start_thread(_State_ptr, void (*)())): 206 Check that gthreads is available before calling __gthread_create. 207 208 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 209 210 Backported from master: 211 2023-04-04 Jonathan Wakely <jwakely (a] redhat.com> 212 213 * doc/xml/manual/extensions.xml: Remove std::bad_exception from 214 example program. 215 * doc/html/manual/ext_demangling.html: Regenerate. 216 217 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 218 219 Backported from master: 220 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 221 222 * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for 223 HTML docs. 224 * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit 225 from doxygen docs. 226 * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR): 227 Likewise. 228 * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR): 229 Likewise. 230 * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR): 231 Likewise. 232 * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR) 233 (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT) 234 (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT) 235 (_DEFINE_BINARY_OPERATOR): Likewise. 236 237 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 238 239 Backported from master: 240 2022-10-28 Jonathan Wakely <jwakely (a] redhat.com> 241 242 * include/bits/fs_path.h (path::filename()): Fix dangling 243 reference. 244 245 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 246 247 PR libstdc++/109064 248 * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker): 249 Remove self-recursion in __init__. Add missing _supports. 250 * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count() 251 and unique(). 252 253 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 254 255 Backported from master: 256 2023-02-28 Jonathan Wakely <jwakely (a] redhat.com> 257 258 PR libstdc++/108952 259 * include/std/memory (uses_allocator_construction_args): 260 Implement LWG 3527. 261 * testsuite/20_util/pair/astuple/get-2.cc: New test. 262 * testsuite/20_util/scoped_allocator/108952.cc: New test. 263 * testsuite/20_util/uses_allocator/lwg3527.cc: New test. 264 265 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 266 267 Backported from master: 268 2023-02-16 Jonathan Wakely <jwakely (a] redhat.com> 269 270 * include/experimental/optional: Fix header name in comment. 271 272 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 273 274 Backported from master: 275 2022-07-20 Jonathan Wakely <jwakely (a] redhat.com> 276 277 PR libstdc++/100823 278 * include/bits/stl_iterator.h (common_iterator): Define move 279 constructor and move assignment operator. 280 (common_iterator::_M_assign): New function implementing 281 assignment. 282 (common_iterator::operator=): Use _M_assign. 283 (common_iterator::_S_valueless): New constant. 284 * testsuite/24_iterators/common_iterator/100823.cc: New test. 285 286 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 287 288 Backported from master: 289 2022-07-20 Jonathan Wakely <jwakely (a] redhat.com> 290 291 * include/bits/stl_iterator.h (common_iterator): Fix incorrect 292 uses of is_nothrow_assignable_v. Fix inconsistent constraints on 293 friend declaration. Do not move argument in copy constructor. 294 * testsuite/24_iterators/common_iterator/1.cc: Check for 295 noexcept constructibnle/assignable. 296 297 2023-04-27 Jonathan Wakely <jwakely (a] redhat.com> 298 299 Backported from master: 300 2022-11-23 Jonathan Wakely <jwakely (a] redhat.com> 301 302 PR libstdc++/107814 303 * testsuite/experimental/filesystem/iterators/error_reporting.cc: 304 Use a static buffer with space after it. 305 306 2023-03-16 Jonathan Wakely <jwakely (a] redhat.com> 307 308 Backported from master: 309 2023-02-02 Jonathan Wakely <jwakely (a] redhat.com> 310 311 PR libstdc++/108636 312 * include/bits/fs_path.h (path::path(string_view, _Type)) 313 (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline 314 definitions to ... 315 * src/c++17/fs_path.cc: ... here. 316 * testsuite/27_io/filesystem/path/108636.cc: New test. 317 318 2022-11-08 Jonathan Wakely <jwakely (a] redhat.com> 319 320 Backported from master: 321 2022-11-08 Jonathan Wakely <jwakely (a] redhat.com> 322 323 * doc/xml/authors.xml: Remove empty author element. 324 * doc/xml/manual/spine.xml: Likewise. 325 * doc/html/*: Regenerate. 326 327 2022-08-03 Jonathan Wakely <jwakely (a] redhat.com> 328 329 Backported from master: 330 2021-08-31 Jonathan Wakely <jwakely (a] redhat.com> 331 332 PR libstdc++/98421 333 * include/std/span (span(Iter, size_type), span(Iter, Iter)): 334 Add valid range checks. 335 * testsuite/23_containers/span/cons_1_assert_neg.cc: New test. 336 * testsuite/23_containers/span/cons_2_assert_neg.cc: New test. 337 338 2022-08-03 Jonathan Wakely <jwakely (a] redhat.com> 339 340 * include/bits/list.tcc (list::merge) [!USE_CXX11_ABI]: Remove 341 call to size() and try-catch block. 342 343 2022-08-03 Tim Adye <Tim.Adye (a] cern.ch> 344 345 Backported from master: 346 2021-06-04 Tim Adye <Tim.Adye (a] cern.ch> 347 348 * include/std/any (any::_Manager::_S_access): New static 349 function to access the contained value. 350 (any::emplace, __any_caster): Use _S_access member of the 351 manager type. 352 353 2022-08-03 Jonathan Wakely <jwakely (a] redhat.com> 354 355 Backported from master: 356 2021-06-15 Jonathan Wakely <jwakely (a] redhat.com> 357 358 * include/std/ranges (subrange(i, s, n)): Remove assertion. 359 * testsuite/std/ranges/subrange/constexpr.cc: New test. 360 361 2022-08-03 Jonathan Wakely <jwakely (a] redhat.com> 362 363 Backported from master: 364 2021-11-10 Jonathan Wakely <jwakely (a] redhat.com> 365 366 PR libstdc++/100748 367 PR libstdc++/103133 368 * config/os/gnu-linux/os_defines.h (_GLIBCXX_GTHREAD_USE_WEAK): 369 Define for glibc 2.34 and later. 370 371 2022-07-23 Jonathan Wakely <jwakely (a] redhat.com> 372 373 Backported from master: 374 2022-07-01 Jonathan Wakely <jwakely (a] redhat.com> 375 376 PR libstdc++/106162 377 * include/Makefile.am (largefile-config.h): Add 378 stamp-${host_alias} prerequisite. 379 * include/Makefile.in: Regenerate. 380 381 2022-07-23 Jonathan Wakely <jwakely (a] redhat.com> 382 383 Backported from master: 384 2021-11-05 Jonathan Wakely <jwakely (a] redhat.com> 385 386 * include/bits/range_access.h (begin(valarray), end(valarray)): 387 Add noexcept. 388 389 2022-07-22 Patrick Palka <ppalka (a] redhat.com> 390 391 Backported from master: 392 2022-07-22 Patrick Palka <ppalka (a] redhat.com> 393 394 PR libstdc++/106320 395 * include/std/ranges (single_view): Relax constraints on 396 default constructor so as to preserve pre-P2325R3 behavior. 397 (filter_view): Likewise. 398 (transform_view): Likewise. 399 (take_while_view): Likewise. 400 (drop_while_view): Likewise. 401 * testsuite/std/ranges/adaptors/join.cc (test13): New test. 402 * testsuite/std/ranges/p2325.cc: Fix S to be only non default 403 constructible and not also non copy constructible. XFAIL the 404 tests that verify a non default constructible functor makes a 405 view non default constructible (lines 94, 97 and 98). XFAIL 406 the test that effectively verifies a non default constructible 407 element type makes single_view non default constructible (line 408 114). 409 410 2022-06-28 Release Manager 411 412 * GCC 10.4.0 released. 413 414 2022-06-15 Jonathan Wakely <jwakely (a] redhat.com> 415 416 Backported from master: 417 2022-06-13 Jonathan Wakely <jwakely (a] redhat.com> 418 419 * include/std/atomic (__atomic_val_t): Use __type_identity_t 420 instead of atomic<T>::value_type, as per LWG 3220. 421 * testsuite/29_atomics/atomic/lwg3220.cc: New test. 422 423 2022-06-15 Mark Mentovai <mark (a] mentovai.com> 424 425 Backported from master: 426 2022-06-13 Mark Mentovai <mark (a] mentovai.com> 427 428 * include/experimental/bits/fs_path.h (__detail::__null_terminated): 429 Rename to __nul_terminated to avoid colliding with a macro in 430 Apple's SDK. 431 432 2022-06-15 Jonathan Wakely <jwakely (a] redhat.com> 433 434 Backported from master: 435 2022-05-06 Jonathan Wakely <jwakely (a] redhat.com> 436 437 PR libstdc++/104731 438 * testsuite/27_io/filesystem/iterators/error_reporting.cc: 439 Use a trailing char array as storage for dirent::d_name. 440 441 2022-06-15 Jonathan Wakely <jwakely (a] redhat.com> 442 443 Backported from master: 444 2022-02-02 Jonathan Wakely <jwakely (a] redhat.com> 445 446 * testsuite/27_io/filesystem/iterators/error_reporting.cc: Use 447 autoconf macro to check whether d_type is present. 448 * testsuite/experimental/filesystem/iterators/error_reporting.cc: 449 Likewise. 450 451 2022-06-15 Jonathan Wakely <jwakely (a] redhat.com> 452 453 Backported from master: 454 2022-02-01 Jonathan Wakely <jwakely (a] redhat.com> 455 456 * src/c++17/fs_dir.cc (recursive_directory_iterator::increment): 457 Reset state to past-the-end iterator on error. 458 (fs::recursive_directory_iterator::pop(error_code&)): Likewise. 459 (fs::recursive_directory_iterator::pop()): Check _M_dirs before 460 it might get reset. 461 * src/filesystem/dir.cc (recursive_directory_iterator): Likewise, 462 for the TS implementation. 463 * testsuite/27_io/filesystem/iterators/error_reporting.cc: New test. 464 * testsuite/experimental/filesystem/iterators/error_reporting.cc: New test. 465 466 2022-06-15 Jonathan Wakely <jwakely (a] redhat.com> 467 468 * testsuite/23_containers/map/allocator/move_cons.cc: New test. 469 * testsuite/23_containers/multimap/allocator/move_cons.cc: New test. 470 * testsuite/23_containers/multiset/allocator/move_cons.cc: New test. 471 * testsuite/23_containers/set/allocator/move_cons.cc: New test. 472 473 2022-06-15 Jonathan Wakely <jwakely (a] redhat.com> 474 475 Backported from master: 476 2021-12-01 Jonathan Wakely <jwakely (a] redhat.com> 477 478 PR libstdc++/103501 479 * include/bits/stl_tree.h (_Rb_tree(_Rb_tree&&, false_type)): 480 Clear container if elements have been moved-from. 481 * testsuite/23_containers/multiset/allocator/103501.cc: New test. 482 * testsuite/23_containers/set/allocator/103501.cc: New test. 483 484 2022-06-14 Jonathan Wakely <jwakely (a] redhat.com> 485 486 PR libstdc++/97944 487 * testsuite/30_threads/jthread/95989.cc: Mark XFAIL. 488 489 2022-06-14 Jonathan Wakely <jwakely (a] redhat.com> 490 491 Backported from master: 492 2020-11-24 Jonathan Wakely <jwakely (a] redhat.com> 493 494 * testsuite/30_threads/jthread/95989.cc: Run all three test 495 functions, not just the first one twice. 496 497 2022-06-14 Jonathan Wakely <jwakely (a] redhat.com> 498 499 Backported from master: 500 2022-04-28 Jonathan Wakely <jwakely (a] redhat.com> 501 502 PR libstdc++/99290 503 * src/c++17/fs_ops.cc (fs::copy): Pass error_code to 504 directory_iterator constructor, and check on each iteration. 505 * src/filesystem/ops.cc (fs::copy): Likewise. 506 * testsuite/27_io/filesystem/operations/copy.cc: Check for 507 errors during recursion. 508 * testsuite/experimental/filesystem/operations/copy.cc: 509 Likewise. 510 511 2022-06-14 Jonathan Wakely <jwakely (a] redhat.com> 512 513 Backported from master: 514 2021-11-05 Jonathan Wakely <jwakely (a] redhat.com> 515 516 * testsuite/lib/gdb-test.exp: Add target selector support to the 517 dg-final directives. 518 * testsuite/libstdc++-prettyprinters/80276.cc: Add xfail for 519 C++20. 520 * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise. 521 * testsuite/libstdc++-prettyprinters/prettyprinters.exp: Tweak 522 comment. 523 524 2022-06-10 Jonathan Wakely <jwakely (a] redhat.com> 525 526 Backported from master: 527 2022-06-10 Jonathan Wakely <jwakely (a] redhat.com> 528 529 PR libstdc++/105915 530 * include/experimental/bits/fs_path.h (path::begin, path::end): 531 Remove noexcept from declarations. 532 533 2022-05-31 Patrick Palka <ppalka (a] redhat.com> 534 535 Backported from master: 536 2021-07-16 Patrick Palka <ppalka (a] redhat.com> 537 538 PR libstdc++/103904 539 PR libstdc++/101231 540 * include/std/ranges (_CachedPosition::_M_get): For non-forward 541 ranges, just call __builtin_unreachable. 542 * testsuite/std/ranges/istream_view.cc (test05): New test. 543 544 2022-05-31 Patrick Palka <ppalka (a] redhat.com> 545 546 Backported from master: 547 2021-06-18 Patrick Palka <ppalka (a] redhat.com> 548 549 PR libstdc++/103904 550 * include/bits/iterator_concepts.h (weakly_incrementable): Remove 551 default_initializable requirement. 552 * include/bits/stl_iterator.h (common_iterator): Constrain the 553 default ctor. 554 (counted_iterator): Likewise. 555 * include/std/ranges (ranges::view): Remove default_initializable 556 requirement. 557 (subrange): Constrain the default ctor. 558 (__detail::__box::operator=): Handle self-assignment. 559 (single_view): Constraint the default ctor. 560 (iota_view): Relax semiregular constraint to copyable. 561 Constrain the default ctor. 562 (iota_view::_Iterator): Constraint the default ctor. 563 (filter_view): Likewise. 564 (filter_view::_Iterator): Likewise. 565 (transform_view): Likewise. 566 (transform_view::_Iterator): Likewise. 567 (take_view): Likewise. 568 (take_view::_Iterator): Likewise. 569 (take_while_view): Likewise. 570 (take_while_view::_Iterator): Likewise. 571 (drop_while_view): Likewise. 572 (drop_while_view::_Iterator): Likewise. 573 (join_view): Likewise. 574 (split_view): Constrain the default ctor. 575 (common_view): Likewise. 576 (reverse_view): Likewise. 577 (elements_view): Likewise. 578 (elements_view::_Iterator): Likewise. 579 * include/std/span (enable_view<span<_ElementType, _Extent>>): 580 Define this partial specialization to true unconditionally. 581 * testsuite/std/ranges/p2325.cc: New test. 582 * testsuite/std/ranges/single_view.cc (test06): New test. 583 * testsuite/std/ranges/view.cc: Adjust now that view doesn't 584 require default_initializable. 585 586 2022-05-29 Iain Sandoe <iain (a] sandoe.co.uk> 587 588 Backported from master: 589 2021-03-15 Iain Sandoe <iain (a] sandoe.co.uk> 590 591 * testsuite/17_intro/names.cc: Exclude j from the list 592 of test symbols for Darwin. 593 594 2022-05-29 Iain Sandoe <iain (a] sandoe.co.uk> 595 596 Backported from master: 597 2021-11-19 Iain Sandoe <iain (a] sandoe.co.uk> 598 599 * testsuite/lib/prune.exp: Prune dsymutil (ld64) warning. 600 601 2022-05-16 Jonathan Wakely <jwakely (a] redhat.com> 602 603 Backported from master: 604 2022-05-16 Jonathan Wakely <jwakely (a] redhat.com> 605 606 * doc/xml/manual/prerequisites.xml: Fix attributes for external 607 hyperlink. 608 * doc/html/manual/setup.html: Regenerate. 609 610 2022-05-16 Jonathan Wakely <jwakely (a] redhat.com> 611 612 Backported from master: 613 2022-05-16 Jonathan Wakely <jwakely (a] redhat.com> 614 615 * doc/html/manual/status.html: Regenerate. 616 * doc/xml/manual/status_cxx2020.xml: Fix supported version for 617 C++20 bit operations. 618 619 2022-05-09 Jonathan Wakely <jwakely (a] redhat.com> 620 621 Backported from master: 622 2022-04-20 Jonathan Wakely <jwakely (a] redhat.com> 623 624 PR libstdc++/93602 625 * doc/xml/manual/prerequisites.xml: Document libiconv 626 workarounds. 627 * doc/html/manual/setup.html: Regenerate. 628 * src/Makefile.am (CXXLINK): Add $(LTLIBICONV). 629 * src/Makefile.in: Regenerate. 630 631 2022-05-09 Jonathan Wakely <jwakely (a] redhat.com> 632 633 Backported from master: 634 2022-05-06 Jonathan Wakely <jwakely (a] redhat.com> 635 636 PR libstdc++/105502 637 * include/bits/random.tcc 638 (operator>>(basic_istream<C,T>&, normal_distribution<R>&)): 639 Update state when __state_avail is false. 640 * testsuite/26_numerics/random/normal_distribution/operators/serialize.cc: 641 Check that deserialized object equals serialized one. 642 643 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 644 645 Backported from master: 646 2021-12-09 Jonathan Wakely <jwakely (a] redhat.com> 647 648 * include/bits/stl_iterator.h (operator==, operator<=>): Define 649 overloads for homogeneous specializations of reverse_iterator, 650 __normal_iterator and move_iterator. 651 652 2022-04-26 Patrick Palka <ppalka (a] redhat.com> 653 654 Backported from master: 655 2021-10-21 Patrick Palka <ppalka (a] redhat.com> 656 657 * include/bits/stl_iterator.h (common_iterator::__arrow_proxy): 658 Make fully constexpr as per LWG 3595. 659 (common_iterator::__postfix_proxy): Likewise. 660 661 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 662 663 Backported from master: 664 2022-01-18 Jonathan Wakely <jwakely (a] redhat.com> 665 666 PR libstdc++/104098 667 * include/bits/stl_iterator.h (reverse_iterator): Check 668 __cpp_lib_concepts instead of __cplusplus. 669 670 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 671 672 Backported from master: 673 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 674 675 * include/bits/range_access.h (ranges::empty): Check whether 676 conversion to bool can throw. 677 * testsuite/std/ranges/access/empty.cc: Check for correct 678 noexcept-specifier. 679 680 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 681 682 PR libstdc++/102048 683 * include/ext/rope (rope::erase(size_type)): Deprecate broken 684 function. 685 686 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 687 688 Backported from master: 689 2021-10-01 Jonathan Wakely <jwakely (a] redhat.com> 690 691 PR libstdc++/100153 692 * include/bits/vector.tcc (vector<bool>::_M_shrink_to_fit()): 693 When size() is zero just deallocate and reset. 694 695 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 696 697 Backported from master: 698 2021-11-01 Jonathan Wakely <jwakely (a] redhat.com> 699 700 * include/std/span (span(Range&&)): Reorder constraints. 701 702 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 703 704 Backported from master: 705 2021-11-09 Jonathan Wakely <jwakely (a] redhat.com> 706 707 * testsuite/26_numerics/random/random_device/cons/token.cc: 708 Retry if random devices produce the same value. 709 710 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 711 712 Backported from master: 713 2021-11-16 Jonathan Wakely <jwakely (a] redhat.com> 714 715 * testsuite/21_strings/basic_string/modifiers/append/wchar_t/1.cc: 716 Fix reads past the end of strings. 717 * testsuite/21_strings/basic_string/operations/compare/wchar_t/1.cc: 718 Likewise. 719 * testsuite/experimental/string_view/operations/compare/wchar_t/1.cc: 720 Likewise. 721 722 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 723 724 Backported from master: 725 2021-11-10 Jonathan Wakely <jwakely (a] redhat.com> 726 727 PR libstdc++/100117 728 * testsuite/17_intro/headers/c++1998/49745.cc: Explicitly list 729 all C++ headers instead of including <bits/stdc++.h> 730 731 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 732 733 Backported from master: 734 2021-12-09 Jonathan Wakely <jwakely (a] redhat.com> 735 736 PR libstdc++/103630 737 * libsupc++/exception_ptr.h (make_exception_ptr): Decay the 738 template parameter. Use typeid of the static type. 739 * testsuite/18_support/exception_ptr/103630.cc: New test. 740 741 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 742 743 Backported from master: 744 2022-01-17 Jonathan Wakely <jwakely (a] redhat.com> 745 746 PR libstdc++/103650 747 * include/Makefile.am: Rename LT_OBJDIR and STDC_HEADERS. 748 * include/Makefile.in: Regenerate. 749 * testsuite/17_intro/headers/c++1998/103650.cc: New test. 750 751 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 752 753 Backported from master: 754 2022-02-04 Jonathan Wakely <jwakely (a] redhat.com> 755 756 * include/experimental/bits/fs_ops.h (fs::copy_file): Remove 757 noexcept. 758 (fs::create_directories): Likewise. 759 (fs::remove_all): Likewise. 760 * src/filesystem/ops.cc (fs::copy_file): Remove noexcept. 761 (fs::create_directories): Likewise. 762 (fs::remove_all): Likewise. 763 764 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 765 766 Backported from master: 767 2022-04-01 Jonathan Wakely <jwakely (a] redhat.com> 768 769 * include/experimental/bits/fs_fwd.h (copy_file): Remove 770 incorrect noexcept from declaration. 771 * include/experimental/bits/fs_path.h (path::begin, path::end): 772 Add noexcept to declarations, to match definitions. 773 774 2022-04-26 Timm Bder <tbaeder (a] redhat.com> 775 776 Backported from master: 777 2022-04-01 Timm Bder <tbaeder (a] redhat.com> 778 779 * include/bits/fs_ops.h: Fix filename in Doxygen comment. 780 * include/experimental/bits/fs_ops.h: Likewise. 781 782 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 783 784 Backported from master: 785 2022-04-20 Jonathan Wakely <jwakely (a] redhat.com> 786 787 * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc: 788 Check correct feature test macro. 789 790 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 791 792 Backported from master: 793 2022-04-14 Jonathan Wakely <jwakely (a] redhat.com> 794 795 * doc/xml/manual/intro.xml: Fix comment. 796 797 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 798 799 Backported from master: 800 2022-03-03 Jonathan Wakely <jwakely (a] redhat.com> 801 802 * testsuite/17_intro/names.cc (func): Undef on AIX. 803 804 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 805 806 Backported from master: 807 2022-01-27 Jonathan Wakely <jwakely (a] redhat.com> 808 809 * include/bits/range_access.h (ranges::advance): Avoid signed 810 overflow. Do nothing if already equal to desired result. 811 * testsuite/24_iterators/range_operations/advance_overflow.cc: 812 New test. 813 814 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 815 816 Backported from master: 817 2022-01-06 Jonathan Wakely <jwakely (a] redhat.com> 818 819 * testsuite/ext/rope/pthread7-rope.cc: Add dg-timeout-factor. 820 821 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 822 823 Backported from master: 824 2022-01-06 Jonathan Wakely <jwakely (a] redhat.com> 825 826 PR libstdc++/103911 827 * include/std/charconv (__from_chars_alpha_to_num): Return 828 char instead of unsigned char. Change invalid return value to 829 127 instead of using numeric trait. 830 (__from_chars_alnum): Fix comment. Do not use std::isdigit. 831 Change type of variable to char. 832 833 2022-04-26 Pavel I. Kryukov <pavel.kryukov (a] phystech.edu> 834 835 Backported from master: 836 2022-01-06 Pavel I. Kryukov <pavel.kryukov (a] phystech.edu> 837 Jonathan Wakely <jwakely (a] redhat.com> 838 839 PR libstdc++/103853 840 * include/bits/forward_list.tcc (forward_list::merge): Check for 841 self-merge. 842 * testsuite/23_containers/forward_list/operations/merge.cc: New test. 843 844 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 845 846 Backported from master: 847 2021-12-14 Jonathan Wakely <jwakely (a] redhat.com> 848 849 * include/bits/regex_compiler.tcc (_Compiler::_M_match_token): 850 Use reserved name for parameter. 851 * testsuite/17_intro/names.cc: Check "token". 852 853 2022-04-26 Jonathan Wakely <jwakely (a] redhat.com> 854 855 Backported from master: 856 2021-08-25 Jonathan Wakely <jwakely (a] redhat.com> 857 858 * testsuite/17_intro/names.cc: Check 'sz'. 859 860 2022-04-14 Jonathan Wakely <jwakely (a] redhat.com> 861 862 * doc/xml/manual/status_cxx1998.xml: Refer to GCC 10 not 863 mainline. 864 * doc/xml/manual/status_cxx2011.xml: Likewise. 865 * doc/xml/manual/status_cxx2014.xml: Likewise. 866 * doc/xml/manual/status_cxx2017.xml: Likewise. 867 * doc/xml/manual/status_cxx2020.xml: Likewise. 868 * doc/xml/manual/status_cxxtr1.xml: Likewise. 869 * doc/xml/manual/status_cxxtr24733.xml: Likewise. 870 * doc/html/manual/status.html: Regenerate. 871 872 2022-02-17 Patrick Palka <ppalka (a] redhat.com> 873 874 Backported from master: 875 2021-10-21 Patrick Palka <ppalka (a] redhat.com> 876 877 PR libstdc++/102358 878 * include/bits/stl_iterator.h (__niter_base): Make constexpr 879 for C++20. 880 (__miter_base): Likewise. 881 * testsuite/25_algorithms/move/constexpr.cc: New test. 882 883 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 884 885 Backported from master: 886 2021-11-18 Jonathan Wakely <jwakely (a] redhat.com> 887 888 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): 889 Do not compare unrelated pointers during constant evaluation. 890 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc: 891 Improve tests for char_traits::move. 892 893 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 894 895 Backported from master: 896 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 897 898 PR libstdc++/103877 899 * doc/xml/faq.xml: Add '-x c++' to preprocessor command. 900 * doc/html/faq.html: Regenerate. 901 902 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 903 904 Backported from master: 905 2021-12-04 Jonathan Wakely <jwakely (a] redhat.com> 906 907 PR libstdc++/103549 908 * include/bits/regex.h (match_results): Give names to template 909 parameters in first declaration. 910 (match_results::_M_begin): Add default member-initializer. 911 912 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 913 914 Backported from master: 915 2021-11-30 Jonathan Wakely <jwakely (a] redhat.com> 916 917 PR libstdc++/103453 918 * config/allocator/malloc_allocator_base.h 919 (_GLIBCXX_SANITIZE_STD_ALLOCATOR): Define for Clang. 920 * config/allocator/new_allocator_base.h 921 (_GLIBCXX_SANITIZE_STD_ALLOCATOR): Likewise. 922 923 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 924 925 Backported from master: 926 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 927 928 * python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Strip 929 versioned namespace from the type name that is printed. 930 931 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 932 933 Backported from master: 934 2021-08-28 Jonathan Wakely <jwakely (a] redhat.com> 935 936 * include/bits/alloc_traits.h (allocator_traits): Add explicit 937 specialization for allocator<void>. Improve doxygen comments. 938 * include/bits/allocator.h (allocator<void>): Restore for the 939 versioned namespace. 940 (allocator<void>::construct, allocator<void>::destroy): Remove. 941 * include/ext/extptr_allocator.h (_Extptr_allocator<void>): 942 Add default constructor and converting constructor. 943 944 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 945 946 Backported from master: 947 2021-11-23 Jonathan Wakely <jwakely (a] redhat.com> 948 949 PR libstdc++/103086 950 * testsuite/libstdc++-prettyprinters/cxx11.cc: Check unique_ptr 951 with non-empty pointer and non-empty deleter. 952 953 2022-01-05 Jonathan Wakely <jwakely (a] redhat.com> 954 955 Backported from master: 956 2021-11-04 Jonathan Wakely <jwakely (a] redhat.com> 957 958 PR libstdc++/103086 959 * python/libstdcxx/v6/printers.py (_tuple_impl_get): New helper 960 for accessing the tuple element stored in a _Tuple_impl node. 961 (tuple_get): New function for accessing a tuple element. 962 (unique_ptr_get): New function for accessing a unique_ptr. 963 (UniquePointerPrinter, StdPathPrinter): Use unique_ptr_get. 964 * python/libstdcxx/v6/xmethods.py (UniquePtrGetWorker): Cast 965 tuple to its base class before accessing _M_head_impl. 966 967 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 968 969 Backported from master: 970 2021-07-22 Jonathan Wakely <jwakely (a] redhat.com> 971 972 PR libstdc++/101571 973 * include/bits/ranges_uninitialized.h (_DestroyGuard): Change 974 constructor parameter to reference and use addressof. 975 * testsuite/util/testsuite_iterators.h: Define deleted operator& 976 overloads for test iterators. 977 978 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 979 980 Backported from master: 981 2021-08-19 Jonathan Wakely <jwakely (a] redhat.com> 982 983 PR libstdc++/101965 984 * include/std/charconv (__to_chars_i): Remove redundant check. 985 986 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 987 988 Backported from master: 989 2021-10-22 Jonathan Wakely <jwakely (a] redhat.com> 990 991 PR libstdc++/102894 992 * include/std/any (make_any): Add SFINAE constraint. 993 * testsuite/20_util/any/102894.cc: New test. 994 995 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 996 997 PR libstdc++/102270 998 * include/std/tuple (_Head_base, _Tuple_impl): Add 999 _GLIBCXX20_CONSTEXPR to allocator-extended constructors. 1000 (tuple<>::swap(tuple&)): Add _GLIBCXX20_CONSTEXPR. 1001 * testsuite/20_util/tuple/cons/102270.cc: New test. 1002 * testsuite/util/testsuite_allocator.h (SimpleAllocator): Add 1003 constexpr to constructor so it can be used for C++20 tests. 1004 1005 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1006 1007 Backported from master: 1008 2021-08-09 Jonathan Wakely <jwakely (a] redhat.com> 1009 1010 * testsuite/23_containers/unordered_map/cons/default.cc: Add 1011 equality comparison operators to allocator. 1012 * testsuite/23_containers/unordered_set/cons/default.cc: 1013 Likewise. 1014 1015 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1016 1017 Backported from master: 1018 2021-07-20 Jonathan Wakely <jwakely (a] redhat.com> 1019 1020 PR libstdc++/100863 1021 * include/bits/hashtable.h (_Hashtable): Conditionally delete 1022 default constructor by deriving from _Enable_default_constructor. 1023 Construct that base-class explicitly in all non-forwarding, 1024 non-defaulted constructors. 1025 * testsuite/23_containers/unordered_map/cons/default.cc: New test. 1026 * testsuite/23_containers/unordered_set/cons/default.cc: New test. 1027 1028 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1029 1030 Backported from master: 1031 2021-06-02 Jonathan Wakely <jwakely (a] redhat.com> 1032 1033 PR libstdc++/100863 1034 PR libstdc++/65816 1035 * include/bits/hashtable_policy.h (_Hashtable_ebo_helper): 1036 Value-initialize subobject. 1037 * testsuite/23_containers/unordered_map/allocator/default_init.cc: 1038 Remove XFAIL. 1039 * testsuite/23_containers/unordered_set/allocator/default_init.cc: 1040 Remove XFAIL. 1041 1042 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1043 1044 Backported from master: 1045 2021-09-28 Jonathan Wakely <jwakely (a] redhat.com> 1046 1047 * include/bits/move.h (forward(remove_reference_t<T>&&)): 1048 Improve text of static_assert. 1049 * testsuite/20_util/forward/c_neg.cc: Adjust dg-error. 1050 * testsuite/20_util/forward/f_neg.cc: Likewise. 1051 1052 2021-11-26 Antony Polukhin <antoshkka (a] gmail.com> 1053 1054 Backported from master: 1055 2021-08-17 Antony Polukhin <antoshkka (a] gmail.com> 1056 Jonathan Wakely <jwakely (a] redhat.com> 1057 1058 * include/bits/random.tcc (seed_seq::seed_seq): Reserve capacity 1059 if distance is O(1). 1060 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error 1061 line number. 1062 1063 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1064 1065 Backported from master: 1066 2021-08-12 Jonathan Wakely <jwakely (a] redhat.com> 1067 1068 PR libstdc++/101870 1069 * include/c_global/cmath (hypot): Use __promoted_t. 1070 (lerp): Add new overload accepting any arithmetic types. 1071 * include/ext/type_traits.h (__promoted_t): New alias template. 1072 * testsuite/26_numerics/lerp.cc: Moved to... 1073 * testsuite/26_numerics/lerp/1.cc: ...here. 1074 * testsuite/26_numerics/lerp/constexpr.cc: New test. 1075 * testsuite/26_numerics/lerp/version.cc: New test. 1076 1077 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1078 1079 * testsuite/27_io/types/1.cc: Add c++11 target selector to 1080 warnings. 1081 1082 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1083 1084 Backported from master: 1085 2021-05-11 Jonathan Wakely <jwakely (a] redhat.com> 1086 1087 * testsuite/20_util/headers/memory/synopsis.cc: Define C++98 1088 alternative for macro. 1089 * testsuite/20_util/shared_ptr/creation/99006.cc: Add effective 1090 target keyword. 1091 * testsuite/25_algorithms/copy/debug/99402.cc: Avoid C++11 1092 syntax. 1093 1094 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1095 1096 * testsuite/23_containers/array/comparison_operators/96851.cc: 1097 Skip test in debug mode. 1098 1099 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1100 1101 * include/bits/stl_iterator.h: Include required header for 1102 std::iterator class template and iterator category tags. 1103 1104 2021-11-26 Jonathan Wakely <jwakely (a] redhat.com> 1105 1106 Backported from master: 1107 2021-11-25 Jonathan Wakely <jwakely (a] redhat.com> 1108 1109 PR libstdc++/101608 1110 * include/bits/ranges_algobase.h (__fill_n_fn): Check for 1111 constant evaluation before using memset. 1112 * testsuite/25_algorithms/fill_n/constrained.cc: Check 1113 byte-sized values as well. 1114 1115 2021-11-23 Jonathan Wakely <jwakely (a] redhat.com> 1116 1117 Backported from master: 1118 2021-11-23 Jonathan Wakely <jwakely (a] redhat.com> 1119 1120 PR libstdc++/103381 1121 * include/ext/bitmap_allocator.h: Include <bits/stl_function.h> 1122 instead of <functional>. 1123 1124 2021-11-01 Jonathan Wakely <jwakely (a] redhat.com> 1125 1126 * include/std/valarray (begin, end): Remove nodiscard attribute. 1127 1128 2021-11-01 Jonathan Wakely <jwakely (a] redhat.com> 1129 1130 Backported from master: 1131 2021-11-01 Jonathan Wakely <jwakely (a] redhat.com> 1132 1133 PR libstdc++/103022 1134 * include/std/valarray (begin, end): Do not dereference an empty 1135 valarray. Add noexcept and [[nodiscard]]. 1136 * testsuite/26_numerics/valarray/range_access.cc: Check empty 1137 valarray. Check iterator properties. Run as well as compiling. 1138 * testsuite/26_numerics/valarray/range_access2.cc: Likewise. 1139 * testsuite/26_numerics/valarray/103022.cc: New test. 1140 1141 2021-10-13 Jonathan Wakely <jwakely (a] redhat.com> 1142 1143 Backported from master: 1144 2021-10-13 Jonathan Wakely <jwakely (a] redhat.com> 1145 1146 * testsuite/28_regex/match_results/102667.C: Moved to... 1147 * testsuite/28_regex/match_results/102667.cc: ...here. 1148 1149 2021-10-13 Jonathan Wakely <jwakely (a] redhat.com> 1150 1151 * testsuite/21_strings/basic_string_view/requirements/trivially_copyable.cc: 1152 Use -std=gnu++17 option. 1153 1154 2021-10-13 Jonathan Wakely <jwakely (a] redhat.com> 1155 1156 Backported from master: 1157 2021-08-20 Jonathan Wakely <jwakely (a] redhat.com> 1158 1159 PR libstdc++/90787 1160 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: 1161 Use new __gnu_test::permissions_are_testable() function. 1162 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc: 1163 Likewise. 1164 * testsuite/27_io/filesystem/operations/exists.cc: Likewise. 1165 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise. 1166 * testsuite/27_io/filesystem/operations/remove.cc: Likewise. 1167 * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise. 1168 * testsuite/27_io/filesystem/operations/status.cc: Likewise. 1169 * testsuite/27_io/filesystem/operations/symlink_status.cc: 1170 Likewise. 1171 * testsuite/27_io/filesystem/operations/temp_directory_path.cc: 1172 Likewise. 1173 * testsuite/experimental/filesystem/iterators/directory_iterator.cc: 1174 Likewise. 1175 * testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc: 1176 Likewise. 1177 * testsuite/experimental/filesystem/operations/exists.cc: 1178 Likewise. 1179 * testsuite/experimental/filesystem/operations/is_empty.cc: 1180 Likewise. 1181 * testsuite/experimental/filesystem/operations/remove.cc: 1182 Likewise. 1183 * testsuite/experimental/filesystem/operations/remove_all.cc: 1184 Likewise. 1185 * testsuite/experimental/filesystem/operations/temp_directory_path.cc: 1186 Likewise. 1187 * testsuite/util/testsuite_fs.h (__gnu_test::permissions_are_testable): 1188 New function to guess whether testing permissions will work. 1189 1190 2021-10-13 Jonathan Wakely <jwakely (a] redhat.com> 1191 1192 * testsuite/27_io/filesystem/operations/remove_all.cc: Remove 1193 test directory after making it writable again. 1194 * testsuite/experimental/filesystem/operations/remove_all.cc: 1195 Likewise. 1196 1197 2021-10-13 Jonathan Wakely <jwakely (a] redhat.com> 1198 1199 Backported from master: 1200 2021-06-22 Jonathan Wakely <jwakely (a] redhat.com> 1201 1202 * include/bits/random.h (seed_seq): Constrain initializer-list 1203 constructor. 1204 * include/bits/random.tcc (seed_seq): Add template parameter. 1205 * testsuite/26_numerics/random/seed_seq/cons/default.cc: Check 1206 for noexcept. 1207 * testsuite/26_numerics/random/seed_seq/cons/initlist.cc: Check 1208 constraints. 1209 1210 2021-10-13 Jonathan Wakely <jwakely (a] redhat.com> 1211 1212 Backported from master: 1213 2021-05-12 Jonathan Wakely <jwakely (a] redhat.com> 1214 1215 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: 1216 Increase dg-timeout-factor to 4. Fix -Wunused-parameter 1217 warnings. Replace bitwise AND with logical AND in loop 1218 condition. 1219 * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: 1220 Replace bitwise AND with logical AND in loop condition. 1221 * testsuite/util/pstl/test_utils.h: Remove unused parameter 1222 names. 1223 1224 2021-10-13 Patrick Palka <ppalka (a] redhat.com> 1225 1226 Backported from master: 1227 2021-04-28 Patrick Palka <ppalka (a] redhat.com> 1228 1229 PR libstdc++/100187 1230 PR libstdc++/100237 1231 PR libstdc++/100249 1232 PR libstdc++/100287 1233 * include/bits/ranges_algo.h (__search_n_fn::operator()): Give 1234 the __value_comp lambda an explicit bool return type. 1235 (__is_permutation_fn::operator()): Give the __proj_scan local 1236 variable auto&& return type. Give the __comp_scan lambda an 1237 explicit bool return type. 1238 (__remove_fn::operator()): Give the __pred lambda an explicit 1239 bool return type. 1240 (__partition_fn::operator()): Don't std::move __first twice 1241 when returning an empty subrange. 1242 (__min_fn::operator()): Don't std::move __comp. 1243 (__max_fn::operator()): Likewise. 1244 (__minmax_fn::operator()): Likewise. 1245 1246 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1247 1248 Backported from master: 1249 2021-08-02 Patrick Palka <ppalka (a] redhat.com> 1250 1251 PR libstdc++/101599 1252 * include/bits/ranges_algo.h (__reverse_copy_fn::operator()): 1253 Add missing std::move in return statement. 1254 (__partition_copy_fn::operator()): Rename templtae parameter 1255 _O2 to _Out2. Uglify function parameters out_true and out_false. 1256 * include/bits/ranges_algobase.h (__copy_or_move): Add missing 1257 std::move to recursive call that unwraps a __normal_iterator 1258 output iterator. 1259 * testsuite/25_algorithms/copy/constrained.cc (test06): New test. 1260 * testsuite/25_algorithms/move/constrained.cc (test05): New test. 1261 1262 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1263 1264 Backported from master: 1265 2021-08-02 Patrick Palka <ppalka (a] redhat.com> 1266 1267 PR libstdc++/101589 1268 * include/std/ranges (lazy_split_view::_InnerIter::base): Make 1269 the const& overload unconstrained and return a const reference 1270 as per LWG 3533. Make unconditionally noexcept. 1271 (elements_view::base): Revert accidental r12-569 change. 1272 (elements_view::_Iterator::base): Make the const& overload 1273 unconstrained and return a const reference as per LWG 3533. 1274 Make unconditionally noexcept. 1275 1276 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1277 1278 Backported from master: 1279 2021-08-02 Patrick Palka <ppalka (a] redhat.com> 1280 1281 PR libstdc++/101483 1282 * include/std/ranges (join_view::_Iterator::_Iterator): Add 1283 missing std::move. 1284 1285 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1286 1287 Backported from master: 1288 2021-06-20 Patrick Palka <ppalka (a] redhat.com> 1289 1290 * include/std/ranges (split_view::_InnerIter::base): Define as 1291 per P2210. 1292 1293 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1294 1295 Backported from master: 1296 2021-06-19 Patrick Palka <ppalka (a] redhat.com> 1297 1298 * include/std/ranges (transform_view::_Iterator::_S_iter_concept): 1299 Consider _Base instead of _Vp as per LWG 3555. 1300 (elements_view::_Iterator::_S_iter_concept): Likewise. 1301 1302 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1303 1304 Backported from master: 1305 2021-06-19 Patrick Palka <ppalka (a] redhat.com> 1306 1307 * include/std/ranges (split_view::_OuterIter::value_type::begin): 1308 Remove the non-const overload, and remove the copyable constraint 1309 on the const overload as per LWG 3553. 1310 1311 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1312 1313 Backported from master: 1314 2021-06-19 Patrick Palka <ppalka (a] redhat.com> 1315 1316 * include/bits/stl_iterator.h 1317 (__detail::__common_iter_use_postfix_proxy): Add 1318 move_constructible constraint as per LWG 3546. 1319 (common_iterator::__postfix_proxy): Adjust initializer of 1320 _M_keep as per LWG 3546. 1321 1322 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1323 1324 Backported from master: 1325 2021-06-18 Patrick Palka <ppalka (a] redhat.com> 1326 1327 PR libstdc++/100387 1328 * include/bits/ranges_algo.h (__minmax_fn::operator()): Rewrite 1329 to limit comparison complexity to 3*N/2. 1330 (__minmax_element_fn::operator()): Likewise. 1331 (shift_right): Avoid premature std::move of __result. 1332 * testsuite/25_algorithms/minmax/constrained.cc (test04, test05): 1333 New tests. 1334 * testsuite/25_algorithms/minmax_element/constrained.cc (test02): 1335 Likewise. 1336 1337 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1338 1339 Backported from master: 1340 2021-06-18 Patrick Palka <ppalka (a] redhat.com> 1341 1342 * include/std/concepts (convertible_to): Just use declval as per 1343 LWG 3557. 1344 1345 2021-10-12 Patrick Palka <ppalka (a] redhat.com> 1346 1347 Backported from master: 1348 2021-05-21 Patrick Palka <ppalka (a] redhat.com> 1349 1350 PR libstdc++/100606 1351 * include/std/ranges (drop_while_view::begin): Assert the 1352 precondition added by LWG 3490. 1353 1354 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1355 1356 Backported from master: 1357 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1358 1359 * testsuite/20_util/tuple/comparison_operators/overloaded.cc: 1360 Restore test for operator<. 1361 1362 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1363 1364 Backported from master: 1365 2021-10-08 Jonathan Wakely <jwakely (a] redhat.com> 1366 1367 * testsuite/27_io/basic_filebuf/close/81256.cc: Moved to... 1368 * testsuite/27_io/basic_filebuf/close/wchar_t/81256.cc: ...here. 1369 1370 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1371 1372 Backported from master: 1373 2021-10-05 Jonathan Wakely <jwakely (a] redhat.com> 1374 1375 * testsuite/21_strings/basic_string_view/requirements/trivially_copyable.cc: 1376 New test. 1377 * testsuite/23_containers/span/trivially_copyable.cc: New test. 1378 1379 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1380 1381 Backported from master: 1382 2021-08-16 Jonathan Wakely <jwakely (a] redhat.com> 1383 1384 * python/Makefile.am [GLIBCXX_BUILD_DEBUG] (install-data-local): 1385 Install another copy of the GDB hook. 1386 * python/Makefile.in: Regenerate. 1387 1388 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1389 1390 Backported from master: 1391 2021-08-17 Jonathan Wakely <jwakely (a] redhat.com> 1392 1393 * python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Define. 1394 (build_libstdcxx_dictionary): Register printer for 1395 std::error_code and std::error_condition. 1396 * testsuite/libstdc++-prettyprinters/cxx11.cc: Test it. 1397 1398 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1399 1400 Backported from master: 1401 2021-09-23 Jonathan Wakely <jwakely (a] redhat.com> 1402 1403 PR libstdc++/102425 1404 * src/c++11/system_error.cc 1405 (system_error_category::default_error_condition): Add 0 to 1406 switch. 1407 * testsuite/19_diagnostics/error_category/102425.cc: New test. 1408 1409 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1410 1411 Backported from master: 1412 2021-09-16 Jonathan Wakely <jwakely (a] redhat.com> 1413 1414 * include/bits/fs_path.h (advance): Remove non-deducible 1415 template parameter. 1416 1417 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1418 1419 Backported from master: 1420 2021-08-28 Jonathan Wakely <jwakely (a] redhat.com> 1421 1422 PR libstdc++/99876 1423 * src/c++17/fs_ops.cc (fs::absolute): Call non-throwing form, 1424 to avoid unnecessary current_path() call. 1425 1426 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1427 1428 Backported from master: 1429 2021-09-17 Jonathan Wakely <jwakely (a] redhat.com> 1430 1431 * testsuite/26_numerics/valarray/dr630-3.C: Moved to... 1432 * testsuite/26_numerics/valarray/dr630-3.cc: ...here. 1433 * testsuite/27_io/basic_iostream/cons/16251.C: Moved to... 1434 * testsuite/27_io/basic_iostream/cons/16251.cc: ...here. 1435 1436 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1437 1438 Backported from master: 1439 2021-09-16 Jonathan Wakely <jwakely (a] redhat.com> 1440 1441 PR libstdc++/102280 1442 * include/std/span (span(Range&&)): Add constraint to deduction 1443 guide. 1444 1445 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1446 1447 Backported from master: 1448 2021-10-01 Jonathan Wakely <jwakely (a] redhat.com> 1449 1450 * testsuite/25_algorithms/is_permutation/2.cc: Include <iterator>. 1451 1452 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1453 1454 Backported from master: 1455 2021-10-05 Jonathan Wakely <jwakely (a] redhat.com> 1456 1457 * testsuite/20_util/integer_comparisons/greater.cc: New test. 1458 1459 2021-10-12 Jonathan Wakely <jwakely (a] redhat.com> 1460 1461 Backported from master: 1462 2021-10-11 Jonathan Wakely <jwakely (a] redhat.com> 1463 1464 PR libstdc++/102667 1465 * include/bits/regex.h (match_result::empty()): Optimize by 1466 calling the base function directly. 1467 (match_results::end()): Check _Base_type::empty() not empty(). 1468 * testsuite/28_regex/match_results/102667.C: New test. 1469 1470 2021-08-23 Jonathan Wakely <jwakely (a] redhat.com> 1471 1472 Backported from master: 1473 2021-08-23 Jonathan Wakely <jwakely (a] redhat.com> 1474 1475 * include/std/ranges (basic_istream_view): Add default template 1476 argument. 1477 * testsuite/std/ranges/istream_view.cc: Check it. 1478 1479 2021-08-19 Jonathan Wakely <jwakely (a] redhat.com> 1480 1481 Backported from master: 1482 2021-08-19 Jonathan Wakely <jwakely (a] redhat.com> 1483 1484 PR libstdc++/100139 1485 * doc/xml/manual/status_cxx2020.xml: Add P1739R4 to status table. 1486 * doc/html/manual/status.html: Regenerate. 1487 1488 2021-08-17 Thomas Schwinge <thomas (a] codesourcery.com> 1489 1490 Backported from master: 1491 2021-08-17 Thomas Schwinge <thomas (a] codesourcery.com> 1492 1493 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose, 1494 continued. 1495 1496 2021-08-11 Jonathan Wakely <jwakely (a] redhat.com> 1497 1498 Backported from master: 1499 2021-08-11 Jonathan Wakely <jwakely (a] redhat.com> 1500 1501 PR libstdc++/101866 1502 * testsuite/experimental/random/randint.cc: Loop and retry if 1503 reseed() produces the same sequence. 1504 1505 2021-08-11 Jonathan Wakely <jwakely (a] redhat.com> 1506 1507 Backported from master: 1508 2021-07-20 Jonathan Wakely <jwakely (a] redhat.com> 1509 1510 PR libstdc++/101510 1511 * src/c++17/fs_ops.cc (fs::create_directories): Use status 1512 instead of symlink_status. 1513 * src/filesystem/ops.cc (fs::create_directories): Likewise. 1514 * testsuite/27_io/filesystem/operations/create_directories.cc: 1515 Check symlink to existing directory. 1516 * testsuite/27_io/filesystem/operations/create_directory.cc: Do 1517 not test with symlinks on Windows. 1518 * testsuite/experimental/filesystem/operations/create_directories.cc: 1519 Check symlink to existing directory. 1520 * testsuite/experimental/filesystem/operations/create_directory.cc: 1521 Do not test with symlinks on Windows. 1522 1523 2021-08-11 Jonathan Wakely <jwakely (a] redhat.com> 1524 1525 Backported from master: 1526 2021-07-20 Jonathan Wakely <jwakely (a] redhat.com> 1527 1528 PR libstdc++/101510 1529 * src/c++17/fs_ops.cc (create_dir): Adjust whitespace. 1530 * testsuite/27_io/filesystem/operations/create_directory.cc: 1531 Test creating directory with name of existing symlink to 1532 directory. 1533 * testsuite/experimental/filesystem/operations/create_directory.cc: 1534 Likewise. 1535 1536 2021-08-11 Jonathan Wakely <jwakely (a] redhat.com> 1537 1538 Backported from master: 1539 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 1540 1541 PR libstdc++/101056 1542 * libsupc++/compare (compare_partial_order_fallback): Add 1543 constraint using reversed parameter order, as per LWG 3465. 1544 * testsuite/18_support/comparisons/algorithms/fallback.cc: 1545 Adjust expected result. 1546 1547 2021-08-11 Jonathan Wakely <jwakely (a] redhat.com> 1548 1549 Backported from master: 1550 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 1551 1552 * libsupc++/compare (__decayed_same_as): New helper concept. 1553 (strong_order, weak_order, partial_order): Constrain with new 1554 concept instead of using static_assert. 1555 (compare_strong_order_fallback, compare_weak_order_fallback) 1556 (compare_partial_order_fallback): Likewise. Do not deduce return 1557 types. Remove redundant if-constexpr checks. 1558 * testsuite/18_support/comparisons/algorithms/fallback.cc: New test. 1559 1560 2021-08-10 Jonathan Wakely <jwakely (a] redhat.com> 1561 1562 Backported from master: 1563 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 1564 1565 PR libstdc++/100894 1566 * include/std/type_traits (__common_ref_impl<X&, Y&>): Only 1567 use the type if it's a reference. 1568 * testsuite/20_util/common_reference/100894.cc: New test. 1569 1570 2021-07-22 Jonathan Wakely <jwakely (a] redhat.com> 1571 1572 Backported from master: 1573 2021-04-15 Jonathan Wakely <jwakely (a] redhat.com> 1574 1575 PR libstdc++/96657 1576 * libsupc++/Makefile.am: Add atomicity.cc here. 1577 * src/c++98/Makefile.am: Remove it from here. 1578 * libsupc++/Makefile.in: Regenerate. 1579 * src/c++98/Makefile.in: Regenerate. 1580 * testsuite/18_support/exception_ptr/96657.cc: New test. 1581 1582 2021-07-22 Jonathan Wakely <jwakely (a] redhat.com> 1583 1584 Backported from master: 1585 2021-06-07 Jonathan Wakely <jwakely (a] redhat.com> 1586 1587 PR libstdc++/98842 1588 * include/std/optional (operator<=>(const optional<T>& const U&)): 1589 Add missing constraint and add workaround for template 1590 recursion. 1591 * testsuite/20_util/optional/relops/three_way.cc: Check that 1592 type without equality comparison cannot be compared when wrapped 1593 in std::optional. 1594 1595 2021-07-14 Jonathan Wakely <jwakely (a] redhat.com> 1596 1597 Backported from master: 1598 2021-07-13 Jonathan Wakely <jwakely (a] redhat.com> 1599 1600 PR c++/101361 1601 * include/std/string_view (ends_with): Use traits_type::compare 1602 directly. 1603 1604 2021-07-14 Jonathan Wakely <jwakely (a] redhat.com> 1605 1606 Backported from master: 1607 2021-07-12 Jonathan Wakely <jwakely (a] redhat.com> 1608 1609 PR libstdc++/101411 1610 * include/std/span (as_writable_bytes): Add requires-clause. 1611 * testsuite/23_containers/span/101411.cc: New test. 1612 1613 2021-07-06 Avi Kivity <avi (a] scylladb.com> 1614 1615 Backported from master: 1616 2021-06-07 Avi Kivity <avi (a] scylladb.com> 1617 1618 PR libstdc++/100900 1619 * include/std/ranges (elements_view::__iter_cat::_S_iter_cat): 1620 Add missing typename. 1621 1622 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1623 1624 Backported from master: 1625 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1626 1627 PR libstdc++/95833 1628 * include/std/numeric (reduce(Iter, Iter, T, BinaryOp)): Replace 1629 incorrect static_assert with ones matching the 'Mandates' 1630 conditions in the standard. 1631 * testsuite/26_numerics/reduce/95833.cc: New test. 1632 1633 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1634 1635 * include/std/variant (__same_types, __check_visitor_results): 1636 Remove. 1637 1638 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1639 1640 Backported from master: 1641 2021-05-04 Jonathan Wakely <jwakely (a] redhat.com> 1642 1643 * include/std/future (promise::set_value): Check for existence 1644 of shared state before dereferncing it. 1645 (promise::set_exception, promise::set_value_at_thread_exit) 1646 (promise::set_exception_at_thread_exit): Likewise. 1647 (promise<R&>::set_value, promise<R&>::set_exception) 1648 (promise<R&>::set_value_at_thread_exit) 1649 (promise<R&>::set_exception_at_thread_exit): Likewise. 1650 (promise<void>::set_value, promise<void>::set_exception) 1651 (promise<void>::set_value_at_thread_exit) 1652 (promise<void>::set_exception_at_thread_exit): Likewise. 1653 * testsuite/30_threads/promise/members/at_thread_exit2.cc: 1654 Remove unused variable. 1655 1656 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1657 1658 Backported from master: 1659 2021-05-04 Jonathan Wakely <jwakely (a] redhat.com> 1660 1661 * include/bits/basic_string.h (basic_string(const CharT*, const A&)): 1662 Do not do arithmetic on null pointer. 1663 1664 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1665 1666 Backported from master: 1667 2021-05-04 Jonathan Wakely <jwakely (a] redhat.com> 1668 1669 * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp 1670 (find_key_pointer(key_const_reference, false_type)) 1671 (find_key_pointer(key_const_reference, true_type)): Do not 1672 dereference null pointer. 1673 1674 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1675 1676 Backported from master: 1677 2021-05-04 Jonathan Wakely <jwakely (a] redhat.com> 1678 1679 * testsuite/20_util/from_chars/3.cc: Use unsigned type to avoid 1680 overflow. 1681 * testsuite/24_iterators/reverse_iterator/2.cc: Do not add 1682 non-zero value to null pointer. 1683 * testsuite/25_algorithms/copy_backward/move_iterators/69478.cc: 1684 Use past-the-end iterator for result. 1685 * testsuite/25_algorithms/move_backward/69478.cc: Likewise. 1686 * testsuite/25_algorithms/move_backward/93872.cc: Likewise. 1687 1688 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1689 1690 Backported from master: 1691 2021-05-04 Jonathan Wakely <jwakely (a] redhat.com> 1692 1693 PR libstdc++/100384 1694 * include/std/variant (__get_t): New alias template yielding the 1695 return type of std::get<N> on a variant. 1696 (__visit_result_t): New alias template yielding the result of 1697 std::visit. 1698 (__same_types): Move into namespace __detail::__variant. 1699 (__check_visitor_results): Likewise. Use __invoke_result_t and 1700 __get_t. 1701 (__check_visitor_result): Remove. 1702 (visit): Use __visit_result_t for return type. 1703 * testsuite/20_util/variant/100384.cc: New test. 1704 1705 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1706 1707 Backported from master: 1708 2021-04-22 Jonathan Wakely <jwakely (a] redhat.com> 1709 1710 PR libstdc++/99006 1711 * include/bits/shared_ptr.h (allocate_shared): Assert that _Tp 1712 is not an array type. 1713 * include/bits/shared_ptr_base.h (__allocate_shared): Likewise. 1714 * testsuite/20_util/shared_ptr/creation/99006.cc: New test. 1715 1716 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1717 1718 Backported from master: 1719 2021-05-11 Jonathan Wakely <jwakely (a] redhat.com> 1720 1721 * include/bits/allocator.h (allocator<void>) [C++20]: Add 1722 missing noexcept to constructor. Restore missing POCMA and 1723 is_always_equal_traits. 1724 * include/bits/memoryfwd.h (allocator_traits): Declare. 1725 * include/ext/malloc_allocator.h (malloc_allocator::allocate): 1726 Add nodiscard attribute. Add static assertion for LWG 3307. 1727 * include/ext/new_allocator.h (new_allocator::allocate): Add 1728 static assertion for LWG 3307. 1729 * testsuite/20_util/allocator/void.cc: Check that converting 1730 constructor is noexcept. Check for propagation traits and 1731 size_type and difference_type. Check that pointer and 1732 const_pointer are gone in C++20. 1733 1734 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1735 1736 Backported from master: 1737 2021-05-10 Jonathan Wakely <jwakely (a] redhat.com> 1738 1739 * include/bits/shared_ptr_base.h (__shared_count(unique_ptr&&)): 1740 Initialize a non-reference deleter from an rvalue, as per LWG 1741 3548. 1742 (__shared_ptr::_UniqCompatible): Add missing constraint. 1743 * testsuite/20_util/shared_ptr/cons/lwg3548.cc: New test. 1744 * testsuite/20_util/shared_ptr/cons/unique_ptr_deleter.cc: Check 1745 constraints. 1746 1747 2021-06-18 Jonathan Wakely <jwakely (a] redhat.com> 1748 1749 Backported from master: 1750 2021-06-17 Jonathan Wakely <jwakely (a] redhat.com> 1751 1752 PR libstdc++/91488 1753 * include/bits/basic_string.h (__cpp_lib_constexpr_string): Only 1754 define C++20 value when std::is_constant_evaluated is available. 1755 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): 1756 Likewise. 1757 (__constant_string_p, __constant_array_p): Give external 1758 linkage. 1759 * include/std/version (__cpp_lib_constexpr_char_traits) 1760 (__cpp_lib_constexpr_string): Only define C++20 values when 1761 is_constant_evaluated is available. 1762 1763 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 1764 1765 Backported from master: 1766 2021-05-10 Jonathan Wakely <jwakely (a] redhat.com> 1767 1768 * testsuite/20_util/scoped_allocator/69293_neg.cc: Add dg-error 1769 for additional errors in C++20. 1770 * testsuite/20_util/uses_allocator/69293_neg.cc: Likewise. 1771 * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise. 1772 1773 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 1774 1775 Backported from master: 1776 2021-06-09 Jonathan Wakely <jwakely (a] redhat.com> 1777 1778 PR libstdc++/100982 1779 * include/std/optional (optional::operator=(const optional<U>&)): 1780 Fix value category used in is_assignable check. 1781 * testsuite/20_util/optional/assignment/100982.cc: New test. 1782 1783 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 1784 1785 Backported from master: 1786 2021-06-14 Jonathan Wakely <jwakely (a] redhat.com> 1787 1788 PR libstdc++/101034 1789 * include/std/any (any(in_place_t<T>, initializer_list<U>, A&&...)) 1790 (any::emplace<T>(initializer_list<U>, A&&...)): Fix constraint 1791 to use lvalue. 1792 * testsuite/20_util/any/cons/101034.cc: New test. 1793 1794 2021-06-10 Patrick Palka <ppalka (a] redhat.com> 1795 1796 Backported from master: 1797 2021-06-03 Patrick Palka <ppalka (a] redhat.com> 1798 1799 PR libstdc++/100770 1800 * include/bits/ranges_algo.h (__detail::__can_reread_output): 1801 Factor out this concept from ... 1802 (__unique_copy_fn::operator()): ... here. Use the concept 1803 throughout. 1804 * testsuite/std/ranges/range.cc: Remove now ill-formed use 1805 of range_value_t on an output_range. 1806 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): 1807 Define value_type, pointer and reference member types to void. 1808 1809 2021-06-10 Patrick Palka <ppalka (a] redhat.com> 1810 1811 Backported from master: 1812 2021-05-21 Patrick Palka <ppalka (a] redhat.com> 1813 1814 PR libstdc++/100690 1815 * include/std/ranges (iota_view::_Sentinel::_M_distance_from): 1816 Split out this member function from ... 1817 (iota_view::_Sentinel::operator-): ... here, for sake of access 1818 control. 1819 * testsuite/std/ranges/iota/iota_view.cc (test05): New test. 1820 1821 2021-06-10 Patrick Palka <ppalka (a] redhat.com> 1822 1823 Backported from master: 1824 2021-05-06 Patrick Palka <ppalka (a] redhat.com> 1825 1826 * include/std/ranges (filter_view::_Iterator::base): Make the 1827 const& overload unconstrained and return a const reference as 1828 per LWG 3533. Make unconditionally noexcept. 1829 (transform_view::_Iterator::base): Likewise. 1830 (elements_view::_Iterator::base): Likewise. 1831 1832 2021-06-10 Patrick Palka <ppalka (a] redhat.com> 1833 1834 Backported from master: 1835 2021-05-06 Patrick Palka <ppalka (a] redhat.com> 1836 1837 * include/bits/stl_iterator.h (move_iterator::base): Make the 1838 const& overload unconstrained and return a const reference as 1839 per LWG 3391. Make unconditionally noexcept. 1840 (counted_iterator::base): Likewise. 1841 * testsuite/24_iterators/move_iterator/lwg3391.cc: New test. 1842 * testsuite/24_iterators/move_iterator/move_only.cc: Adjust 1843 has_member_base concept to decay-copy the result of base(). 1844 1845 2021-06-10 Patrick Palka <ppalka (a] redhat.com> 1846 1847 Backported from master: 1848 2021-05-18 Patrick Palka <ppalka (a] redhat.com> 1849 1850 PR libstdc++/100631 1851 * include/std/ranges (elements_view::_Sentinel::operator-): Use 1852 _M_distance_from in the other operator- overload too. 1853 * testsuite/std/ranges/adaptors/elements.cc (test06): Augment test. 1854 1855 2021-06-10 Patrick Palka <ppalka (a] redhat.com> 1856 1857 Backported from master: 1858 2021-05-18 Patrick Palka <ppalka (a] redhat.com> 1859 1860 PR libstdc++/100631 1861 * include/std/ranges (elements_view::_Iterator): Also befriend 1862 _Sentinel<!_Const>. 1863 (elements_view::_Sentinel::_M_equal): Templatize. 1864 (elements_view::_Sentinel::_M_distance_from): Split out from ... 1865 (elements_view::_Sentinel::operator-): ... here. Depend on 1866 _Base2 instead of _Base in the return type. 1867 * testsuite/std/ranges/adaptors/elements.cc (test06, test07): 1868 New tests. 1869 1870 2021-06-10 Patrick Palka <ppalka (a] redhat.com> 1871 1872 Backported from master: 1873 2021-05-20 Patrick Palka <ppalka (a] redhat.com> 1874 1875 PR libstdc++/100639 1876 * include/bits/stl_iterator.h (reverse_iterator::difference_type): 1877 In C++20 mode, define in terms of iter_difference_t as per P0896R4. 1878 (reverse_iterator::reference): Likewise, but with iter_reference_t. 1879 (reverse_iterator::value_type): Likewise, but with iter_value_t. 1880 * testsuite/std/ranges/adaptors/reverse.cc (test08): New test. 1881 * testsuite/24_iterators/reverse_iterator/100639.cc: New test. 1882 1883 2021-06-03 Jonathan Wakely <jwakely (a] redhat.com> 1884 1885 Backported from master: 1886 2021-06-01 Jonathan Wakely <jwakely (a] redhat.com> 1887 1888 PR libstdc++/100833 1889 * include/bits/range_access.h (ranges::advance(iter, n, sentinel)): 1890 Fix return value for no-op case. 1891 * testsuite/24_iterators/range_operations/advance.cc: Test 1892 return values of three-argument overload. 1893 1894 2021-06-03 Jonathan Wakely <jwakely (a] redhat.com> 1895 1896 Backported from master: 1897 2021-05-26 Jonathan Wakely <jwakely (a] redhat.com> 1898 1899 PR libstdc++/100768 1900 * include/bits/range_access.h (ranges::advance) 1901 (ranges::distance, ranges::next, ranges::prev): Replace 1902 function templates with function objects. 1903 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: 1904 Adjust for changes to function objects. 1905 * testsuite/std/ranges/adaptors/elements.cc: Add using 1906 declarations for names from namespace ranges. 1907 * testsuite/std/ranges/adaptors/transform.cc: Likewise. 1908 * testsuite/24_iterators/range_operations/100768.cc: New test. 1909 1910 2021-06-03 Jonathan Wakely <jwakely (a] redhat.com> 1911 1912 Backported from master: 1913 2021-06-01 Jonathan Wakely <jwakely (a] redhat.com> 1914 1915 PR libstdc++/99453 1916 * python/Makefile.am: Use archive name for printer hook if no 1917 dynamic library name is available. 1918 * python/Makefile.in: Regenerate. 1919 1920 2021-06-03 Philippe Blain <levraiphilippeblain (a] gmail.com> 1921 1922 Backported from master: 1923 2021-04-21 Philippe Blain <levraiphilippeblain (a] gmail.com> 1924 Jonathan Wakely <jwakely (a] redhat.com> 1925 1926 PR libstdc++/99453 1927 * python/Makefile.am: Install libstdc++*-gdb.py more robustly. 1928 * python/Makefile.in: Regenerate. 1929 1930 2021-05-17 Jonathan Wakely <jwakely (a] redhat.com> 1931 1932 PR libstdc++/100630 1933 * include/bits/fs_path.h (__is_constructible_from): Test 1934 construction from a const lvalue, not an rvalue. 1935 * include/experimental/bits/fs_path.h (__is_constructible_from): 1936 Likewise. 1937 * testsuite/27_io/filesystem/path/construct/100630.cc: New test. 1938 * testsuite/experimental/filesystem/path/construct/100630.cc: 1939 New test. 1940 1941 2021-05-17 Jonathan Wakely <jwakely (a] redhat.com> 1942 1943 Backported from master: 1944 2021-03-11 Jonathan Wakely <jwakely (a] redhat.com> 1945 1946 * python/libstdcxx/v6/printers.py (find_type): Use tag attribute 1947 instead of unqualified() method. 1948 1949 2021-05-05 Patrick Palka <ppalka (a] redhat.com> 1950 1951 Backported from master: 1952 2021-05-05 Patrick Palka <ppalka (a] redhat.com> 1953 1954 * include/std/ranges (transform_view::_Iterator::iter_swap): 1955 Remove as per LWG 3520. 1956 (join_view::_Iterator::iter_swap): Add indirectly_swappable 1957 constraint as per LWG 3517. 1958 1959 2021-05-04 Patrick Palka <ppalka (a] redhat.com> 1960 1961 Backported from master: 1962 2021-04-30 Patrick Palka <ppalka (a] redhat.com> 1963 1964 * include/std/ranges (split_view::_InnerIter::operator++): 1965 Depend on _Base instead of _Vp directly, as per LWG 3532. 1966 1967 2021-05-04 Patrick Palka <ppalka (a] redhat.com> 1968 1969 Backported from master: 1970 2021-04-20 Patrick Palka <ppalka (a] redhat.com> 1971 1972 PR libstdc++/95983 1973 * include/bits/stl_iterator.h (__detail::__move_iter_cat): 1974 Define. 1975 (move_iterator): Derive from the above in C++20 in order to 1976 conditionally define iterator_category as per P2259. 1977 (move_iterator::__base_cat): No longer used, so remove. 1978 (move_iterator::iterator_category): Remove in C++20. 1979 (__detail::__common_iter_use_postfix_proxy): Define. 1980 (common_iterator::_Proxy): Rename to ... 1981 (common_iterator:__arrow_proxy): ... this. 1982 (common_iterator::__postfix_proxy): Define as per P2259. 1983 (common_iterator::operator->): Adjust. 1984 (common_iterator::operator++): Adjust as per P2259. 1985 (iterator_traits<common_iterator>::_S_iter_cat): Define. 1986 (iterator_traits<common_iterator>::iterator_category): Change as 1987 per P2259. 1988 (__detail::__counted_iter_value_type): Define. 1989 (__detail::__counted_iter_concept): Define. 1990 (__detail::__counted_iter_cat): Define. 1991 (counted_iterator): Derive from the above three classes in order 1992 to conditionally define value_type, iterator_concept and 1993 iterator category respectively as per P2259. 1994 (counted_iterator::operator->): Define as per P2259. 1995 (incrementable_traits<counted_iterator>): Remove as per P2259. 1996 (iterator_traits<counted_iterator>): Adjust as per P2259. 1997 * include/std/ranges (__detail::__iota_view_iter_cat): Define. 1998 (iota_view::_Iterator): Derive from the above in order to 1999 conditionally define iterator_category as per P2259. 2000 (iota_view::_S_iter_cat): Rename to ... 2001 (iota_view::_S_iter_concept): ... this. 2002 (iota_view::iterator_concept): Use it to apply LWG 3291 changes. 2003 (iota_view::iterator_category): Remove. 2004 (__detail::__filter_view_iter_cat): Define. 2005 (filter_view::_Iterator): Derive from the above in order to 2006 conditionally define iterator_category as per P2259. 2007 (filter_view::_Iterator): Move to struct __filter_view_iter_cat. 2008 (filter_view::_Iterator::iterator_category): Remove. 2009 (transform_view::_Base): Define. 2010 (transform_view::__iter_cat): Define. 2011 (transform_view::_Iterator): Derive from the above in order to 2012 conditionally define iterator_category as per P2259. 2013 (transform_view::_Iterator::_Base): Just alias 2014 transform_view::_Base. 2015 (transform_view::_Iterator::_S_iter_cat): Move to struct 2016 transform_view::__iter_cat. 2017 (transform_view::_Iterator::iterator_category): Remove. 2018 (transform_view::_Sentinel::_Base): Just alias 2019 transform_view::_Base. 2020 (join_view::_Base): Define. 2021 (join_view::_Outer_iter): Define. 2022 (join_view::_Inner_iter): Define. 2023 (join_view::_S_ref_is_glvalue): Define. 2024 (join_view::__iter_cat): Define. 2025 (join_view::_Iterator): Derive from it in order to conditionally 2026 define iterator_category as per P2259. 2027 (join_view::_Iterator::_Base): Just alias join_view::_Base. 2028 (join_view::_Iterator::_S_ref_is_glvalue): Just alias 2029 join_view::_S_ref_is_glvalue. 2030 (join_view::_Iterator::_S_iter_cat): Move to struct 2031 transform_view::__iter_cat. 2032 (join_view::_Iterator::_Outer_iter): Just alias 2033 join_view::_Outer_iter. 2034 (join_view::_Iterator::_Inner_iter): Just alias 2035 join_view::_Inner_iter. 2036 (join_view::_Iterator::iterator_category): Remove. 2037 (join_view::_Sentinel::_Base): Just alias join_view::_Base. 2038 (__detail::__split_view_outer_iter_cat): Define. 2039 (__detail::__split_view_inner_iter_cat): Define. 2040 (split_view::_Base): Define. 2041 (split_view::_Outer_iter): Derive from __split_view_outer_iter_cat 2042 in order to conditionally define iterator_category as per P2259. 2043 (split_view::_Outer_iter::iterator_category): Remove. 2044 (split_view::_Inner_iter): Derive from __split_view_inner_iter_cat 2045 in order to conditionally define iterator_category as per P2259. 2046 (split_view::_Inner_iter::_S_iter_cat): Move to 2047 __split_view_inner_iter_cat. 2048 (split_view::_Inner_iter::iterator_category): Remove. 2049 (elements_view::_Base): Define. 2050 (elements_view::__iter_cat): Define. 2051 (elements_view::_Iterator): Derive from the above in order to 2052 conditionall define iterator_category as per P2259. 2053 (elements_view::_Iterator::_Base): Just alias 2054 elements_view::_Base. 2055 (elements_view::_Iterator::_S_iter_concept) 2056 (elements_view::_Iterator::iterator_concept): Define as per 2057 P2259. 2058 (elements_view::_Iterator::iterator_category): Remove. 2059 (elements_view::_Sentinel::_Base): Just alias 2060 elements_view::_Base. 2061 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: 2062 Adjust constraints on iterator_traits<counted_iterator>. 2063 * testsuite/std/ranges/p2259.cc: New test. 2064 2065 2021-05-03 Patrick Palka <ppalka (a] redhat.com> 2066 2067 Backported from master: 2068 2021-04-27 Patrick Palka <ppalka (a] redhat.com> 2069 2070 PR libstdc++/100290 2071 * include/std/ranges (join_view::_Iterator::operator++): Correct 2072 the return type of the lambda to avoid returning a copy of 2073 _M_parent->_M_inner. 2074 * testsuite/std/ranges/adaptors/join.cc (test10): New test. 2075 2076 2021-04-30 Jonathan Wakely <jwakely (a] redhat.com> 2077 2078 Backported from master: 2079 2021-04-30 Jonathan Wakely <jwakely (a] redhat.com> 2080 2081 * include/bits/basic_string.h (__cpp_lib_constexpr_string): 2082 Only define for C++17 and later. 2083 2084 2021-04-29 Jonathan Wakely <jwakely (a] redhat.com> 2085 2086 Backported from master: 2087 2021-04-26 Jonathan Wakely <jwakely (a] redhat.com> 2088 2089 PR libstdc++/100259 2090 * include/experimental/internet (net::ip::make_error_code) 2091 (net::ip::make_error_condition, net::ip::make_network_v4) 2092 (net::ip::operator==(const udp&, const udp&)): Add 'inline'. 2093 2094 2021-04-29 Jonathan Wakely <jwakely (a] redhat.com> 2095 2096 Backported from master: 2097 2021-04-28 Jonathan Wakely <jwakely (a] redhat.com> 2098 2099 * include/bits/basic_string.h (__cpp_lib_constexpr_string): Define. 2100 * include/std/version (__cpp_lib_constexpr_string): Define. 2101 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc: 2102 Check for __cpp_lib_constexpr_string. 2103 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc: 2104 Likewise. 2105 * testsuite/21_strings/char_traits/requirements/version.cc: New test. 2106 2107 2021-04-21 Jonathan Wakely <jwakely (a] redhat.com> 2108 2109 PR libstdc++/100180 2110 * testsuite/experimental/net/internet/address/v6/members.cc: 2111 Require gthreads. 2112 2113 2021-04-21 Patrick Palka <ppalka (a] redhat.com> 2114 2115 Backported from master: 2116 2021-04-08 Patrick Palka <ppalka (a] redhat.com> 2117 2118 * include/std/ranges (__detail::find): Define. 2119 (split_view::_OuterIter::operator++): Apply proposed resolution 2120 of LWG 3505. 2121 * testsuite/std/ranges/adaptors/split.cc (test10): New test. 2122 2123 2021-04-21 Patrick Palka <ppalka (a] redhat.com> 2124 2125 Backported from master: 2126 2021-04-08 Patrick Palka <ppalka (a] redhat.com> 2127 2128 * include/std/ranges (__detail::find_if): Simplify. 2129 (__detail::find_if_not): Likewise. 2130 (__detail::min): Remove. 2131 (__detail::mismatch): Simplify. 2132 (take_view::size): Use std::min instead of __detail::min. 2133 2134 2021-04-21 Patrick Palka <ppalka (a] redhat.com> 2135 2136 Backported from master: 2137 2021-04-08 Patrick Palka <ppalka (a] redhat.com> 2138 2139 * include/std/ranges (__detail::__returnable_element): New 2140 concept. 2141 (elements_view): Use this concept in its constraints. Add 2142 missing private access specifier. 2143 (elements_view::_S_get_element): Define as per LWG 3502. 2144 (elements_view::operator*, elements_view::operator[]): Use 2145 _S_get_element. 2146 (elements_view::operator++): Remove unnecessary constraint 2147 as per LWG 3492. 2148 * testsuite/std/ranges/adaptors/elements.cc (test05): New test. 2149 2150 2021-04-21 Patrick Palka <ppalka (a] redhat.com> 2151 2152 Backported from master: 2153 2020-10-31 Patrick Palka <ppalka (a] redhat.com> 2154 2155 PR libstdc++/97600 2156 * include/std/ranges (basic_istream_view::begin): Initialize 2157 _Iterator from 'this' instead of '*this'. 2158 (basic_istream_view::_Iterator::_Iterator): Adjust constructor 2159 accordingly. 2160 (filter_view::_Iterator::_Iterator): Take a filter_view* 2161 argument instead of a filter_view& argument. 2162 (filter_view::_Sentinel::_Sentinel): Likewise. 2163 (filter_view::begin): Initialize _Iterator from 'this' instead 2164 of '*this'. 2165 (filter_view::end): Likewise. 2166 (transform_view::_Iterator::_Iterator): Take a _Parent* instead 2167 of a _Parent&. 2168 (filter_view::_Iterator::operator+): Adjust accordingly. 2169 (filter_view::_Iterator::operator-): Likewise. 2170 (filter_view::begin): Initialize _Iterator from 'this' instead 2171 of '*this'. 2172 (filter_view::end): Likewise. 2173 (join_view::_Iterator): Take a _Parent* instead of a _Parent&. 2174 (join_view::_Sentinel): Likewise. 2175 (join_view::begin): Initialize _Iterator from 'this' instead of 2176 '*this'. 2177 (join_view::end): Initialize _Sentinel from 'this' instead of 2178 '*this'. 2179 (split_view::_OuterIter): Take a _Parent& instead of a _Parent*. 2180 (split_view::begin): Initialize _OuterIter from 'this' instead 2181 of '*this'. 2182 (split_view::end): Likewise. 2183 * testsuite/std/ranges/97600.cc: New test. 2184 2185 2021-04-19 Franois Dumont <fdumont (a] gcc.gnu.org> 2186 2187 PR libstdc++/99402 2188 * include/debug/helper_functions.h (__can_advance(_InputIterator, 2189 const std::pair<_Diff, _Distance_precision>&, int)): New. 2190 (__can_advance(const _Safe_iterator<>&, 2191 const std::pair<_Diff, _Distance_precision>&, int)): New. 2192 * include/debug/macros.h (__glibcxx_check_can_increment_dist): New, 2193 use latter. 2194 (__glibcxx_check_can_increment_range): Adapt to use latter. 2195 (__glibcxx_check_can_decrement_range): Likewise. 2196 * include/debug/safe_iterator.h 2197 (_Safe_iterator<>::_M_can_advance(const std::pair<_Diff, _Distance_precision>&, 2198 int)): New. 2199 (__can_advance(const _Safe_iterator<>&, 2200 const std::pair<_Diff, _Distance_precision>&, int)): New. 2201 * include/debug/safe_iterator.tcc 2202 (_Safe_iterator<>::_M_can_advance(const std::pair<_Diff, _Distance_precision>&, 2203 int)): New. 2204 (_Safe_iterator<>::_M_valid_range(const _Safe_iterator<>&, 2205 std::pair<difference_type, _Distance_precision>&, bool)): Adapt for 2206 __dp_sign_max_size. 2207 (__copy_move_a): Adapt to use __glibcxx_check_can_increment_dist. 2208 (__copy_move_backward_a): Likewise. 2209 (__equal_aux): Likewise. 2210 * include/debug/stl_iterator.h (__can_advance(const std::reverse_iterator<>&, 2211 const std::pair<_Diff, _Distance_precision>&, int)): New. 2212 (__can_advance(const std::move_iterator<>&, 2213 const std::pair<_Diff, _Distance_precision>&, int)): New. 2214 * testsuite/25_algorithms/copy/debug/99402.cc: New test. 2215 2216 2021-04-19 Jonathan Wakely <jwakely (a] redhat.com> 2217 2218 Backported from master: 2219 2020-10-26 Jonathan Wakely <jwakely (a] redhat.com> 2220 2221 PR libstdc++/97570 2222 * libsupc++/new_opa.cc: Declare size_t in global namespace. 2223 Remove unused header. 2224 2225 2021-04-13 Jonathan Wakely <jwakely (a] redhat.com> 2226 2227 Backported from master: 2228 2021-04-13 Jonathan Wakely <jwakely (a] redhat.com> 2229 2230 PR libstdc++/100060 2231 * include/std/bit: Only include <ext/numeric_traits.h> for 2232 hosted build, use <limits> otherwise. 2233 2234 2021-04-12 Jonathan Wakely <jwakely (a] redhat.com> 2235 2236 Backported from master: 2237 2021-04-12 Jonathan Wakely <jwakely (a] redhat.com> 2238 2239 PR libstdc++/100044 2240 * include/std/ranges (__detail::__iterator_sentinel_pair): 2241 Remove helper concept. 2242 (subrange(_Pr), subrange(Pr, __make_unsigned_like<...>)): Remove 2243 deduction guides, as per LWG 3404. 2244 * testsuite/std/ranges/subrange/lwg3282_neg.cc: Check that class 2245 template argument deduction fails. 2246 2247 2021-04-12 Jonathan Wakely <jwakely (a] redhat.com> 2248 2249 Backported from master: 2250 2020-08-24 Jonathan Wakely <jwakely (a] redhat.com> 2251 2252 * include/bits/iterator_concepts.h (indirectly_readable): Add 2253 partial specializations to resolve ambiguities (LWG 3446). 2254 * testsuite/24_iterators/associated_types/readable.traits.cc: 2255 Check types with both value_type and element_type. 2256 2257 2021-04-09 Jonathan Wakely <jwakely (a] redhat.com> 2258 2259 PR bootstrap/99983 2260 * include/bits/hashtable.h (_Hashtable): Fix noexcept-speciofier 2261 on definition to match the one on the declaration. 2262 2263 2021-04-09 Jonathan Wakely <jwakely (a] redhat.com> 2264 2265 Backported from master: 2266 2021-04-09 Jonathan Wakely <jwakely (a] redhat.com> 2267 2268 PR libstdc++/99985 2269 * include/bits/hashtable.h (_Hashtable::_S_nothrow_move()): Fix 2270 to be a valid constexpr function in C++11. 2271 * testsuite/23_containers/unordered_set/cons/99985.cc: New test. 2272 2273 2021-04-09 Jonathan Wakely <jwakely (a] redhat.com> 2274 2275 Backported from master: 2276 2021-04-09 Jonathan Wakely <jwakely (a] redhat.com> 2277 2278 * include/bits/fs_fwd.h: Fix doxygen group command. 2279 * include/bits/streambuf_iterator.h: Likewise. 2280 * include/std/chrono: Likewise. 2281 * include/std/memory: Likewise. 2282 * include/std/thread: Likewise. 2283 * include/tr1/complex: Likewise. 2284 2285 2021-04-09 Jonathan Wakely <jwakely (a] redhat.com> 2286 2287 Backported from master: 2288 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2289 2290 * include/bits/basic_string.h: Tweak doxygen comment. 2291 2292 2021-04-09 Jonathan Wakely <jwakely (a] redhat.com> 2293 2294 Backported from master: 2295 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2296 2297 * include/bits/random.h: Fix doxygen group commands. 2298 * include/bits/regex_constants.h: Likewise. 2299 * include/tr1/random.h: Likewise. 2300 2301 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2302 2303 Backported from master: 2304 2020-07-30 Jonathan Wakely <jwakely (a] redhat.com> 2305 2306 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc: 2307 Use allocator with the correct value type. 2308 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc: 2309 Likewise. 2310 2311 2021-04-08 Franois Dumont <fdumont (a] gcc.gnu.org> 2312 2313 Backported from master: 2314 2020-07-29 Franois Dumont <fdumont (a] gcc.gnu.org> 2315 2316 PR libstdc++/96029 2317 * include/bits/hashtable.h 2318 (_Hashtable(_Hashtable&& __ht, __node_alloc_type&& __a, true_type)): 2319 Add noexcept qualification. 2320 (_Hashtable(_Hashtable&&)): Fix noexcept qualification. 2321 (_Hashtable(_Hashtable&&, const allocator_type&)): Add noexcept 2322 qualification. 2323 * include/bits/unordered_map.h 2324 (unordered_map(unordered_map&&, const allocator_type&)): Add noexcept 2325 qualification. 2326 (unordered_multimap(unordered_multimap&&, const allocator_type&)): 2327 Likewise. 2328 * include/bits/unordered_set.h 2329 (unordered_set(unordered_set&&, const allocator_type&)): Likewise. 2330 (unordered_multiset(unordered_multiset&&, const allocator_type&)): 2331 Likewise. 2332 * include/debug/unordered_map 2333 (unordered_map(unordered_map&&, const allocator_type&)): Likewise. 2334 (unordered_multimap(unordered_multimap&&, const allocator_type&)): 2335 Likewise. 2336 * include/debug/unordered_set 2337 (unordered_set(unordered_set&&, const allocator_type&)): Likewise. 2338 (unordered_multiset(unordered_multiset&&, const allocator_type&)): 2339 Likewise. 2340 * testsuite/23_containers/unordered_map/allocator/default_init.cc: 2341 New test. 2342 * testsuite/23_containers/unordered_map/cons/noexcept_default_construct.cc: 2343 New test. 2344 * testsuite/23_containers/unordered_map/cons/noexcept_move_construct.cc: 2345 New test. 2346 * testsuite/23_containers/unordered_map/modifiers/move_assign.cc: 2347 New test. 2348 * testsuite/23_containers/unordered_multimap/cons/noexcept_default_construct.cc: 2349 New test. 2350 * testsuite/23_containers/unordered_multimap/cons/noexcept_move_construct.cc: 2351 New test. 2352 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc: 2353 New test. 2354 * testsuite/23_containers/unordered_multiset/cons/noexcept_move_construct.cc: 2355 New test. 2356 * testsuite/23_containers/unordered_set/allocator/default_init.cc: 2357 New test. 2358 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc: 2359 New test. 2360 * testsuite/23_containers/unordered_set/cons/noexcept_move_construct.cc: 2361 New test. 2362 2363 2021-04-08 Franois Dumont <fdumont (a] gcc.gnu.org> 2364 2365 Backported from master: 2366 2020-07-08 Franois Dumont <fdumont (a] gcc.gnu.org> 2367 2368 PR libstdc++/96029 2369 * include/bits/stl_tree.h (_Rb_tree_impl(_Rb_tree_impl&&)): Add noexcept 2370 qualification based only on _Compare one. 2371 * testsuite/23_containers/map/cons/noexcept_move_construct.cc: Add 2372 static asserts. 2373 * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc: 2374 Likewise. 2375 * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc: 2376 Likewise. 2377 * testsuite/23_containers/set/cons/noexcept_move_construct.cc: Likewise. 2378 2379 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2380 2381 Backported from master: 2382 2021-04-07 Jonathan Wakely <jwakely (a] redhat.com> 2383 2384 PR libstdc++/99805 2385 * src/c++17/fs_path.cc (path::_M_split_cmpts): Do not call 2386 non-const member on _M_pathname, to avoid copy-on-write. 2387 * testsuite/27_io/filesystem/path/decompose/parent_path.cc: 2388 Check construction from strings that might be shared. 2389 2390 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2391 2392 * doc/xml/manual/status_cxx2017.xml: Replace Intel parallelstl 2393 link with LLVM repo for PSTL. 2394 * doc/html/manual/status.html: Regenerate. 2395 2396 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2397 2398 Backported from master: 2399 2021-04-06 Jonathan Wakely <jwakely (a] redhat.com> 2400 2401 * include/bits/alloc_traits.h: Use markdown for code font. 2402 * include/bits/basic_string.h: Fix @param names. 2403 * include/bits/regex.h: Fix duplicate @retval names, and rename. 2404 * include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp: Add 2405 group open to match existing group close. 2406 * include/ext/pb_ds/priority_queue.hpp: Add blank line before group 2407 open. 2408 2409 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2410 2411 Backported from master: 2412 2021-04-06 Jonathan Wakely <jwakely (a] redhat.com> 2413 2414 * include/bits/atomic_base.h: Fix doxygen group close. 2415 * include/bits/basic_ios.h: Likewise. 2416 * include/bits/forward_list.h: Likewise. 2417 * include/bits/fs_dir.h: Likewise. 2418 * include/bits/fs_ops.h: Likewise. 2419 * include/bits/fs_path.h: Likewise. 2420 * include/bits/functional_hash.h: Likewise. 2421 * include/bits/gslice.h: Likewise. 2422 * include/bits/gslice_array.h: Likewise. 2423 * include/bits/hashtable_policy.h: Likewise. 2424 * include/bits/indirect_array.h: Likewise. 2425 * include/bits/locale_classes.h: Likewise. 2426 * include/bits/locale_facets.h: Likewise. 2427 * include/bits/locale_facets_nonio.h: Likewise. 2428 * include/bits/mask_array.h: Likewise. 2429 * include/bits/refwrap.h: Likewise. 2430 * include/bits/regex.h: Likewise. 2431 * include/bits/regex_automaton.h: Likewise. 2432 * include/bits/regex_compiler.h: Likewise. 2433 * include/bits/regex_constants.h: Likewise. 2434 * include/bits/regex_error.h: Likewise. 2435 * include/bits/regex_executor.h: Likewise. 2436 * include/bits/regex_scanner.h: Likewise. 2437 * include/bits/shared_ptr.h: Likewise. 2438 * include/bits/shared_ptr_atomic.h: Likewise. 2439 * include/bits/shared_ptr_base.h: Likewise. 2440 * include/bits/slice_array.h: Likewise. 2441 * include/bits/specfun.h: Likewise. 2442 * include/bits/std_function.h: Likewise. 2443 * include/bits/std_mutex.h: Likewise. 2444 * include/bits/stl_deque.h: Likewise. 2445 * include/bits/stl_iterator.h: Likewise. 2446 * include/bits/stl_iterator_base_types.h: Likewise. 2447 * include/bits/stl_map.h: Likewise. 2448 * include/bits/stl_multimap.h: Likewise. 2449 * include/bits/stl_multiset.h: Likewise. 2450 * include/bits/stl_numeric.h: Likewise. 2451 * include/bits/stl_pair.h: Likewise. 2452 * include/bits/stl_set.h: Likewise. 2453 * include/bits/stl_uninitialized.h: Likewise. 2454 * include/bits/stream_iterator.h: Likewise. 2455 * include/bits/streambuf_iterator.h: Likewise. 2456 * include/bits/unique_ptr.h: Likewise. 2457 * include/bits/unordered_map.h: Likewise. 2458 * include/bits/unordered_set.h: Likewise. 2459 * include/decimal/decimal: Likewise. 2460 * include/experimental/any: Likewise. 2461 * include/experimental/array: Likewise. 2462 * include/experimental/bits/fs_dir.h: Likewise. 2463 * include/experimental/bits/fs_fwd.h: Likewise. 2464 * include/experimental/bits/fs_ops.h: Likewise. 2465 * include/experimental/bits/fs_path.h: Likewise. 2466 * include/experimental/buffer: Likewise. 2467 * include/experimental/internet: Likewise. 2468 * include/experimental/optional: Likewise. 2469 * include/experimental/propagate_const: Likewise. 2470 * include/experimental/socket: Likewise. 2471 * include/ext/pb_ds/assoc_container.hpp: Likewise. 2472 * include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp: 2473 Likewise. 2474 * include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp: Likewise. 2475 * include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp: Likewise. 2476 * include/ext/pb_ds/detail/types_traits.hpp: Likewise. 2477 * include/ext/pb_ds/exception.hpp: Likewise. 2478 * include/ext/pb_ds/priority_queue.hpp: Likewise. 2479 * include/ext/pb_ds/tag_and_trait.hpp: Likewise. 2480 * include/ext/random: Likewise. 2481 * include/std/any: Likewise. 2482 * include/std/atomic: Likewise. 2483 * include/std/bitset: Likewise. 2484 * include/std/chrono: Likewise. 2485 * include/std/complex: Likewise. 2486 * include/std/condition_variable: Likewise. 2487 * include/std/fstream: Likewise. 2488 * include/std/future: Likewise. 2489 * include/std/istream: Likewise. 2490 * include/std/iostream: Likewise. 2491 * include/std/mutex: Likewise. 2492 * include/std/numeric: Likewise. 2493 * include/std/ostream: Likewise. 2494 * include/std/ratio: Likewise. 2495 * include/std/shared_mutex: Likewise. 2496 * include/std/stdexcept: Likewise. 2497 * include/std/streambuf: Likewise. 2498 * include/std/system_error: Likewise. 2499 * include/std/valarray: Likewise. 2500 * include/std/variant: Likewise. 2501 * include/tr1/cmath: Likewise. 2502 * include/tr1/regex: Likewise. 2503 * include/tr2/dynamic_bitset: Likewise. 2504 * libsupc++/atomic_lockfree_defines.h: Likewise. 2505 * libsupc++/exception: Likewise. 2506 * libsupc++/exception.h: Likewise. 2507 * libsupc++/exception_ptr.h: Likewise. 2508 * libsupc++/nested_exception.h: Likewise. 2509 2510 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2511 2512 Backported from master: 2513 2021-04-08 Jonathan Wakely <jwakely (a] redhat.com> 2514 2515 * include/std/string_view: Adjust Doxygen @file comment. 2516 2517 2021-04-08 Release Manager 2518 2519 * GCC 10.3.0 released. 2520 2521 2021-04-01 Jonathan Wakely <jwakely (a] redhat.com> 2522 2523 Backported from master: 2524 2021-02-14 Jonathan Wakely <jwakely (a] redhat.com> 2525 2526 PR libstdc++/99096 2527 * testsuite/util/testsuite_fs.h: Always include <unistd.h>. 2528 2529 2021-04-01 Jonathan Wakely <jwakely (a] redhat.com> 2530 2531 Backported from master: 2532 2020-12-17 Jonathan Wakely <jwakely (a] redhat.com> 2533 2534 * config.h.in: Regenerate. 2535 * config/os/djgpp/error_constants.h: Test POSIX errno macros 2536 directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros. 2537 * config/os/mingw32-w64/error_constants.h: Likewise. 2538 * config/os/mingw32/error_constants.h: Likewise. 2539 * configure: Regenerate. 2540 2541 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2542 2543 Backported from master: 2544 2020-11-30 Jonathan Wakely <jwakely (a] redhat.com> 2545 2546 * testsuite/20_util/specialized_algorithms/pstl/*: Add 2547 dg-timeout-factor. 2548 * testsuite/25_algorithms/pstl/*: Likewise. 2549 * testsuite/26_numerics/pstl/*: Likewise. 2550 * testsuite/28_regex/*: Likewise. 2551 2552 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2553 2554 Backported from master: 2555 2020-11-26 Jonathan Wakely <jwakely (a] redhat.com> 2556 2557 * testsuite/28_regex/algorithms/regex_match/basic/string_range_01_03.cc: 2558 Add dg-timeout-factor directive. 2559 * testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc: 2560 Likewise. 2561 * testsuite/28_regex/algorithms/regex_match/ecma/char/backref.cc: 2562 Likewise. 2563 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/63199.cc: 2564 Likewise. 2565 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/anymatcher.cc: 2566 Likewise. 2567 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/cjk_match.cc: 2568 Likewise. 2569 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/hex.cc: 2570 Likewise. 2571 * testsuite/28_regex/algorithms/regex_match/extended/wstring_locale.cc: 2572 Likewise. 2573 * testsuite/28_regex/algorithms/regex_search/61720.cc: Likewise. 2574 * testsuite/28_regex/algorithms/regex_search/ecma/assertion.cc: 2575 Likewise. 2576 * testsuite/28_regex/algorithms/regex_search/ecma/string_01.cc: 2577 Likewise. 2578 * testsuite/28_regex/basic_regex/ctors/deduction.cc: Likewise. 2579 2580 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2581 2582 Backported from master: 2583 2020-08-11 Jonathan Wakely <jwakely (a] redhat.com> 2584 2585 * include/std/stop_token: Check _GLIBCXX_HAS_GTHREADS using 2586 #ifdef instead of #if. 2587 (stop_token::_S_yield()): Check _GLIBCXX_HAS_GTHREADS before 2588 using __gthread_yield. 2589 2590 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2591 2592 Backported from master: 2593 2020-06-19 Jonathan Wakely <jwakely (a] redhat.com> 2594 2595 PR libstdc++/95765 2596 * include/bits/stl_algobase.h (__size_to_integer(float)) 2597 (__size_to_integer(double), __size_to_integer(long double)) 2598 (__size_to_integer(__float128)): Cast return type explicitly. 2599 2600 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2601 2602 Backported from master: 2603 2020-11-25 Jonathan Wakely <jwakely (a] redhat.com> 2604 2605 * testsuite/17_intro/names.cc: Do not test 'v' on AIX. 2606 2607 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2608 2609 Backported from master: 2610 2020-07-30 Jonathan Wakely <jwakely (a] redhat.com> 2611 2612 * include/bits/basic_string.h (size_type, difference_type): 2613 Use allocator_traits to obtain the allocator's size_type and 2614 difference_type. 2615 2616 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2617 2618 Backported from master: 2619 2020-09-01 Jonathan Wakely <jwakely (a] redhat.com> 2620 2621 * include/std/chrono (duration::_S_gcd(intmax_t, intmax_t)): 2622 New helper function for finding GCD of two positive intmax_t 2623 values. 2624 (duration::__divide): New helper alias for dividing one period 2625 by another. 2626 (duration::__is_harmonic): Use __divide not ratio_divide. 2627 (duration(const duration<R2, P2>&)): Require the duration rep 2628 types to be convertible. 2629 * testsuite/20_util/duration/cons/dr2094.cc: New test. 2630 * testsuite/20_util/duration/requirements/reduced_period.cc: 2631 Fix definition of unused member functions in test type. 2632 * testsuite/20_util/duration/requirements/typedefs_neg2.cc: 2633 Adjust expected errors. 2634 2635 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2636 2637 Backported from master: 2638 2020-08-27 Jonathan Wakely <jwakely (a] redhat.com> 2639 2640 * include/std/chrono (__duration_common_type): Ensure the 2641 reduced ratio is used. Remove unused partial specialization 2642 using __failure_type. 2643 (common_type): Pass reduced ratios to __duration_common_type. 2644 Add partial specializations for simple cases involving a single 2645 duration or time_point type. 2646 (duration::period): Use reduced ratio. 2647 (duration::operator+(), duration::operator-()): Return duration 2648 type using the reduced ratio. 2649 * testsuite/20_util/duration/requirements/typedefs_neg2.cc: 2650 Adjust expected errors. 2651 * testsuite/20_util/duration/requirements/reduced_period.cc: New test. 2652 2653 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2654 2655 Backported from master: 2656 2020-09-03 Jonathan Wakely <jwakely (a] redhat.com> 2657 2658 PR libstdc++/96592 2659 * include/std/tuple (_TupleConstraints<true, T...>): Use 2660 alternative is_constructible instead of std::is_constructible. 2661 * testsuite/20_util/tuple/cons/96592.cc: New test. 2662 2663 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2664 2665 Backported from master: 2666 2020-07-31 Jonathan Wakely <jwakely (a] redhat.com> 2667 2668 * testsuite/20_util/is_aggregate/value.cc: Adjust for changes to 2669 definition of aggregates in C++20. 2670 * testsuite/20_util/optional/requirements.cc: Adjust for 2671 defaulted comparisons in C++20. 2672 2673 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2674 2675 Backported from master: 2676 2020-07-31 Jonathan Wakely <jwakely (a] redhat.com> 2677 2678 * testsuite/20_util/tuple/78939.cc: Suppress warnings about 2679 deprecation of volatile-qualified structured bindings in C++20. 2680 * testsuite/20_util/variable_templates_for_traits.cc: Likewise 2681 for deprecation of is_pod in C++20 2682 2683 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2684 2685 Backported from master: 2686 2020-06-09 Jonathan Wakely <jwakely (a] redhat.com> 2687 2688 * include/std/optional (bad_optional_access): Define default 2689 constructor and destructor as defaulted. 2690 * testsuite/20_util/optional/bad_access.cc: New test. 2691 2692 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2693 2694 Backported from master: 2695 2020-06-04 Jonathan Wakely <jwakely (a] redhat.com> 2696 2697 * include/bits/ranges_algobase.h (__copy_n_fn): Only call 2698 ranges::copy for positive values. 2699 * include/bits/stl_algo.h (copy_n): Convert Size argument to an 2700 integral type and only call __copy_n for positive values. 2701 * testsuite/util/testsuite_iterators.h 2702 (random_access_iterator_wrapper::operator+=): Fix range check for 2703 negative values. 2704 (output_container, input_container, forward_container) 2705 (bidirectional_container, random_access_container): New alias 2706 templates. 2707 * testsuite/25_algorithms/copy_n/5.cc: New test. 2708 2709 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2710 2711 Backported from master: 2712 2020-06-16 Jonathan Wakely <jwakely (a] redhat.com> 2713 2714 * include/std/atomic (atomic): Add static assertions. 2715 * testsuite/29_atomics/atomic/requirements/types_neg.cc: New test. 2716 2717 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2718 2719 Backported from master: 2720 2020-06-09 Jonathan Wakely <jwakely (a] redhat.com> 2721 2722 * include/bits/stl_iterator.h (move_iterator::operator=): Define. 2723 * testsuite/24_iterators/move_iterator/dr3265.cc: New test. 2724 2725 2021-03-29 Paul Keir <paul.keir (a] uws.ac.uk> 2726 2727 Backported from master: 2728 2020-06-15 Paul Keir <paul.keir (a] uws.ac.uk> 2729 2730 * include/bits/char_traits.h (char_traits::move): constexpr move with 2731 overlap was using copy_backward incorrectly. 2732 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc: 2733 New test. 2734 2735 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2736 2737 Backported from master: 2738 2020-07-31 Jonathan Wakely <jwakely (a] redhat.com> 2739 2740 * testsuite/20_util/time_point_cast/rounding.cc: Remove 2741 duplicate dg-do directive and add c++17 effective target. 2742 2743 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2744 2745 Backported from master: 2746 2020-08-11 Jonathan Wakely <jwakely (a] redhat.com> 2747 2748 * testsuite/30_threads/thread/cons/84535.cc: Use a custom 2749 namespace. 2750 * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise. 2751 2752 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2753 2754 Backported from master: 2755 2020-11-26 Jonathan Wakely <jwakely (a] redhat.com> 2756 2757 * testsuite/lib/libstdc++.exp (libstdc++_init): Only set 2758 tool_timeout if it hasn't been set by the user already. 2759 2760 2021-03-29 Moritz Sichert <sichert (a] in.tum.de> 2761 2762 Backported from master: 2763 2021-03-23 Moritz Sichert <sichert (a] in.tum.de> 2764 2765 * include/std/ranges (reverse_view::begin, reverse_view::end): 2766 Qualify make_reverse_iterator calls to avoid ADL. 2767 * testsuite/std/ranges/adaptors/reverse.cc: Test that 2768 views::reverse works when make_reverse_iterator is defined 2769 in an associated namespace. 2770 2771 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2772 2773 Backported from master: 2774 2021-03-22 Jonathan Wakely <jwakely (a] redhat.com> 2775 2776 * include/bits/range_access.h (begin(T (&)[N]), end(T (&)[N])): 2777 Add missing 'noexcept' as per LWG 2280. 2778 (rbegin(T (&)[N]), rend(T (&)[N]), rbegin(initializer_list<T>)) 2779 (rend(initializer_list<T>)): Add 'noexcept' as per LWG 3537. 2780 * testsuite/24_iterators/range_access/range_access.cc: Check for 2781 expected noexcept specifiers. Check result types of generic 2782 std::begin and std::end overloads. 2783 * testsuite/24_iterators/range_access/range_access_cpp14.cc: 2784 Check for expected noexcept specifiers. 2785 * testsuite/24_iterators/range_access/range_access_cpp17.cc: 2786 Likewise. 2787 2788 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2789 2790 Backported from master: 2791 2021-03-11 Jonathan Wakely <jwakely (a] redhat.com> 2792 2793 PR libstdc++/99537 2794 * include/std/stop_token (_Stop_state_t::_M_release_ownership): 2795 Use acq_rel memory ordering. 2796 2797 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2798 2799 Backported from master: 2800 2021-03-11 Jonathan Wakely <jwakely (a] redhat.com> 2801 2802 PR libstdc++/99533 2803 * src/c++17/fs_dir.cc (recursive_directory_iterator): Use new 2804 helper function to check for permission denied errors. 2805 * src/filesystem/dir.cc (recursive_directory_iterator): 2806 Likewise. 2807 * src/filesystem/dir-common.h (is_permission_denied_error): New 2808 helper function. 2809 2810 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2811 2812 Backported from master: 2813 2021-03-11 Jonathan Wakely <jwakely (a] redhat.com> 2814 2815 PR libstdc++/99536 2816 * include/bits/random.h (normal_distribution): Use 2817 default-initializer for _M_saved and _M_saved_available. 2818 2819 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2820 2821 Backported from master: 2822 2021-03-10 Jonathan Wakely <jwakely (a] redhat.com> 2823 2824 * include/bits/range_cmp.h (__eq_builtin_ptr_cmp): Remove. 2825 (ranges::equal_to, ranges::not_equal_to): Do not constrain 2826 with __eq_builtin_ptr_cmp. 2827 (ranges::less, ranges::greater, ranges::less_equal) 2828 (ranges::greater_equal): Do not constrain with 2829 __less_builtin_ptr_cmp. 2830 * libsupc++/compare (compare_three_way): Do not constrain with 2831 __3way_builtin_ptr_cmp. 2832 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc: Moved to... 2833 * testsuite/18_support/comparisons/object/lwg3530.cc: ...here. 2834 * testsuite/20_util/function_objects/range.cmp/lwg3530.cc: New test. 2835 2836 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2837 2838 Backported from master: 2839 2021-02-12 Jonathan Wakely <jwakely (a] redhat.com> 2840 2841 * doc/xml/manual/status_cxx2014.xml: Document implementation 2842 specific properties of std::experimental::filesystem::rename. 2843 * doc/xml/manual/status_cxx2017.xml: Document implementation 2844 specific properties of std::filesystem::rename. 2845 * doc/html/*: Regenerate. 2846 * src/c++17/fs_ops.cc (fs::rename): Implement correct behaviour 2847 for directories on Windows. 2848 * src/filesystem/ops-common.h (__gnu_posix::rename): Use 2849 MoveFileExW on Windows. 2850 * testsuite/27_io/filesystem/operations/rename.cc: New test. 2851 * testsuite/experimental/filesystem/operations/rename.cc: New test. 2852 2853 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2854 2855 Backported from master: 2856 2021-02-12 Jonathan Wakely <jwakely (a] redhat.com> 2857 2858 * testsuite/util/testsuite_fs.h (nonexistent_path): Add 2859 random number to the path. 2860 2861 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2862 2863 Backported from master: 2864 2021-02-12 Jonathan Wakely <jwakely (a] redhat.com> 2865 2866 * include/experimental/internet (address_v6::to_string): Include 2867 scope ID in string. 2868 (address_v6::loopback): Fix to be constexpr in C++14. 2869 * testsuite/experimental/net/internet/address/v6/members.cc: 2870 Test to_string() results. 2871 2872 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2873 2874 Backported from master: 2875 2021-02-12 Jonathan Wakely <jwakely (a] redhat.com> 2876 2877 * include/experimental/internet (address_v6::any): Avoid using 2878 memcpy in constexpr function. 2879 (address_v6::loopback): Likewise. 2880 (make_address_v6): Fix missing return statements on error paths. 2881 * include/experimental/io_context: Avoid -Wdangling-else 2882 warning. 2883 * testsuite/experimental/net/internet/address/v4/members.cc: 2884 Remove unused variables. 2885 * testsuite/experimental/net/internet/address/v6/members.cc: 2886 New test. 2887 2888 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2889 2890 Backported from master: 2891 2020-10-29 Jonathan Wakely <jwakely (a] redhat.com> 2892 2893 * testsuite/25_algorithms/all_of/constexpr.cc: Check result of 2894 the algorithm. 2895 * testsuite/25_algorithms/any_of/constexpr.cc: Likewise. 2896 * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise. 2897 * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise. 2898 * testsuite/25_algorithms/count/constexpr.cc: Likewise. 2899 * testsuite/25_algorithms/equal/constexpr.cc: Likewise. 2900 * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise. 2901 * testsuite/25_algorithms/fill/constexpr.cc: Likewise. 2902 * testsuite/25_algorithms/find_end/constexpr.cc: Likewise. 2903 * testsuite/25_algorithms/find_if/constexpr.cc: Likewise. 2904 * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise. 2905 * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise. 2906 * testsuite/25_algorithms/is_sorted_until/constexpr.cc: 2907 Likewise. 2908 * testsuite/25_algorithms/lexicographical_compare/constexpr.cc: 2909 Likewise. 2910 * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise. 2911 * testsuite/25_algorithms/merge/constexpr.cc: Likewise. 2912 * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise. 2913 * testsuite/25_algorithms/none_of/constexpr.cc: Likewise. 2914 * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise. 2915 * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise. 2916 * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise. 2917 * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise. 2918 * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise. 2919 * testsuite/25_algorithms/reverse/constexpr.cc: Likewise. 2920 * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise. 2921 * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise. 2922 * testsuite/25_algorithms/search/constexpr.cc: Likewise. 2923 * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise. 2924 * testsuite/25_algorithms/set_intersection/constexpr.cc: 2925 Likewise. 2926 * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc: 2927 Likewise. 2928 * testsuite/25_algorithms/set_union/constexpr.cc: Likewise. 2929 * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise. 2930 * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise. 2931 2932 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2933 2934 Backported from master: 2935 2021-02-12 Jonathan Wakely <jwakely (a] redhat.com> 2936 2937 PR libstdc++/99077 2938 * src/c++11/cxx11-ios_failure.cc (__ios_failure(const char*, int)): 2939 Change int parameter to error_code, to match std::ios_failure. 2940 (__throw_ios_failure(const char*, int)): Construct error_code 2941 from int parameter. 2942 2943 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2944 2945 Backported from master: 2946 2021-02-11 Jonathan Wakely <jwakely (a] redhat.com> 2947 2948 PR libstdc++/99058 2949 * doc/xml/manual/status_cxx2011.xml: Document when support 2950 became stable. 2951 * doc/xml/manual/status_cxx2014.xml: Likewise. 2952 * doc/xml/manual/status_cxx2017.xml: Likewise. 2953 * doc/html/manual/status.html: Regenerate. 2954 2955 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2956 2957 Backported from master: 2958 2021-02-12 Jonathan Wakely <jwakely (a] redhat.com> 2959 2960 PR libstdc++/88881 2961 * src/c++17/fs_ops.cc (fs::symlink_status): Re-enable workaround. 2962 2963 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2964 2965 Backported from master: 2966 2021-02-10 Jonathan Wakely <jwakely (a] redhat.com> 2967 2968 PR libstdc++/88881 2969 * src/c++17/fs_ops.cc (fs::status): Re-enable workaround. 2970 2971 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2972 2973 Backported from master: 2974 2021-02-10 Jonathan Wakely <jwakely (a] redhat.com> 2975 2976 * src/c++17/fs_ops.cc (fs::create_hard_link, fs::equivalent) 2977 (fs::remove): Use std::system_category() for error codes from 2978 GetLastError(). 2979 * src/filesystem/ops.cc (fs::create_hard_link, fs::remove): 2980 Likewise. 2981 2982 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2983 2984 Backported from master: 2985 2021-02-10 Jonathan Wakely <jwakely (a] redhat.com> 2986 2987 * testsuite/27_io/filesystem/operations/proximate.cc: Fix typo 2988 in __MINGW32__ macro name. 2989 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise. 2990 * testsuite/27_io/filesystem/path/generation/proximate.cc: 2991 Likewise. 2992 * testsuite/27_io/filesystem/path/generation/relative.cc: 2993 Likewise. 2994 * testsuite/util/testsuite_fs.h: Likewise. 2995 2996 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 2997 2998 Backported from master: 2999 2021-02-03 Jonathan Wakely <jwakely (a] redhat.com> 3000 3001 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: 3002 Add comparison with same category and different values. 3003 * testsuite/19_diagnostics/error_code/operators/less.cc: 3004 Likewise. Fix comparison involving different categories. 3005 * testsuite/19_diagnostics/error_code/operators/three_way.cc: 3006 Likewise. 3007 * testsuite/19_diagnostics/error_condition/operators/less.cc: 3008 Add comment. 3009 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: 3010 Likewise. 3011 3012 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3013 3014 Backported from master: 3015 2020-12-16 Jonathan Wakely <jwakely (a] redhat.com> 3016 3017 PR libstdc++/98319 3018 * include/experimental/random: Only define contents for C++14 3019 and later. 3020 * include/experimental/source_location: Likewise. 3021 * include/experimental/utility: Likewise. 3022 * testsuite/experimental/feat-lib-fund.cc: Include all LFTS 3023 headers that are present. Allow test to run for all modes. 3024 3025 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3026 3027 Backported from master: 3028 2020-12-16 Jonathan Wakely <jwakely (a] redhat.com> 3029 3030 PR libstdc++/93151 3031 * acinclude.m4 (GLIBCXX_CHECK_SYSTEM_ERROR): Remove. 3032 * configure.ac: Regenerate. 3033 * config/os/generic/error_constants.h: Test POSIX errno macros 3034 directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros. 3035 * testsuite/19_diagnostics/headers/system_error/errc_std_c++0x.cc: 3036 Likewise. 3037 * testsuite/19_diagnostics/headers/system_error/93151.cc: New 3038 test. 3039 3040 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3041 3042 Backported from master: 3043 2020-12-10 Jonathan Wakely <jwakely (a] redhat.com> 3044 3045 PR libstdc++/98226 3046 * include/std/bit (__countl_one, __countr_one): Remove redundant 3047 branches. 3048 3049 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3050 3051 Backported from master: 3052 2020-11-09 Jonathan Wakely <jwakely (a] redhat.com> 3053 3054 * include/std/bit (__popcount): Remove redundant check for zero. 3055 3056 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3057 3058 Backported from master: 3059 2020-10-30 Jonathan Wakely <jwakely (a] redhat.com> 3060 3061 * include/std/ranges (enable_borrowed_view<take_view<T>>) 3062 (enable_borrowed_view<drop_view<T>>) 3063 (enable_borrowed_view<drop_while_view<T>>) 3064 (enable_borrowed_view<reverse_view<T>>) 3065 (enable_borrowed_view<common_view<T>>) 3066 (enable_borrowed_view<elements_view<T>>): Add partial 3067 specializations as per P2017R1. 3068 * testsuite/std/ranges/adaptors/conditionally_borrowed.cc: 3069 New test. 3070 3071 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3072 3073 Backported from master: 3074 2020-10-29 Jonathan Wakely <jwakely (a] redhat.com> 3075 3076 * include/std/ranges (subrange::subrange(R&&)): Use 3077 direct-initialization instead of list-initialization, so a 3078 potential narrowing conversion from ranges::size(r) to the 3079 stored size isn't ill-formed. 3080 3081 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3082 3083 Backported from master: 3084 2020-10-08 Jonathan Wakely <jwakely (a] redhat.com> 3085 3086 PR libstdc++/82584 3087 * include/bits/random.tcc 3088 (discrete_distribution::param_type::_M_initialize) 3089 (piecewise_constant_distribution::param_type::_M_initialize) 3090 (piecewise_linear_distribution::param_type::_M_initialize): 3091 Add assertions for positive sums.. 3092 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error 3093 line. 3094 3095 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3096 3097 Backported from master: 3098 2020-10-08 Jonathan Wakely <jwakely (a] redhat.com> 3099 3100 * include/bits/random.h (__detail::_Mod): Revert last change. 3101 (__detail::__mod): Do not use _Mod for a==0 case. 3102 * testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc: 3103 Check other cases with a==0. Also check runtime results. 3104 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error 3105 line. 3106 3107 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3108 3109 Backported from master: 3110 2020-10-07 Jonathan Wakely <jwakely (a] redhat.com> 3111 3112 * include/bits/random.h (__detail::_Mod): Avoid divide by zero. 3113 * testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc: 3114 New test. 3115 3116 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3117 3118 Backported from master: 3119 2020-09-21 Jonathan Wakely <jwakely (a] redhat.com> 3120 3121 * include/std/ranges (drop_view::begin()): Adjust constraints 3122 to match the correct condition for O(1) ranges::next (LWG 3482). 3123 * testsuite/std/ranges/adaptors/drop.cc: Check that iterator is 3124 cached for non-sized_range. 3125 3126 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3127 3128 Backported from master: 3129 2020-09-21 Jonathan Wakely <jwakely (a] redhat.com> 3130 3131 * include/std/ranges (transform_view, elements_view): Relax 3132 constraints on operator- for iterators, as per LWG 3483. 3133 * testsuite/std/ranges/adaptors/elements.cc: Check that we 3134 can take the difference of two iterators from a non-random 3135 access range. 3136 * testsuite/std/ranges/adaptors/transform.cc: Likewise. 3137 3138 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3139 3140 Backported from master: 3141 2020-10-28 Jonathan Wakely <jwakely (a] redhat.com> 3142 3143 PR libstdc++/95592 3144 * include/bits/valarray_after.h (_DEFINE_EXPR_UNARY_OPERATOR) 3145 (_DEFINE_EXPR_BINARY_OPERATOR, _DEFINE_EXPR_BINARY_FUNCTION): 3146 Use elaborated-type-specifier and qualified-id to avoid 3147 ambiguities with QNX system headers. 3148 * testsuite/26_numerics/valarray/95592.cc: New test. 3149 3150 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3151 3152 Backported from master: 3153 2020-10-27 Jonathan Wakely <jwakely (a] redhat.com> 3154 3155 * include/bits/locale_conv.h (__str_codecvt_out_all): 3156 Add cast to compare operands of the same signedness. 3157 * include/bits/locale_facets_nonio.tcc 3158 (time_get::_M_extract_wday_or_month): Likewise. 3159 * include/bits/sstream.tcc (basic_stringbuf::overflow): 3160 Likewise. 3161 * include/tr1/legendre_function.tcc (__sph_legendre): Use 3162 unsigned for loop variable. 3163 3164 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3165 3166 Backported from master: 3167 2020-09-10 Jonathan Wakely <jwakely (a] redhat.com> 3168 3169 * include/bits/locale_conv.h (__do_str_codecvt, __str_codecvt_in_all): 3170 Add casts to compare types of the same signedness. 3171 3172 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3173 3174 Backported from master: 3175 2020-09-10 Jonathan Wakely <jwakely (a] redhat.com> 3176 3177 * include/bits/ranges_algobase.h (__equal_fn): Remove unused 3178 typedef. 3179 3180 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3181 3182 Backported from master: 3183 2020-09-10 Jonathan Wakely <jwakely (a] redhat.com> 3184 3185 * include/experimental/bits/shared_ptr.h (shared_ptr(auto_ptr&&)) 3186 (operator=(auto_ptr&&)): Add diagnostic pragmas to suppress 3187 warnings for uses of std::auto_ptr. 3188 * include/experimental/type_traits (is_literal_type_v): 3189 Likewise, for use of std::is_literal_type. 3190 * include/std/condition_variable (condition_variable_any::_Unlock): 3191 Likewise, for use of std::uncaught_exception. 3192 3193 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3194 3195 Backported from master: 3196 2020-09-10 Jonathan Wakely <jwakely (a] redhat.com> 3197 3198 * include/bits/fs_path.h (path::_List::type()): Avoid narrowing 3199 conversion. 3200 3201 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3202 3203 Backported from master: 3204 2020-09-07 Jonathan Wakely <jwakely (a] redhat.com> 3205 3206 * include/std/ranges (__box): Simplify constraints as per LWG 3477. 3207 3208 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3209 3210 Backported from master: 3211 2020-08-24 Jonathan Wakely <jwakely (a] redhat.com> 3212 3213 * include/std/ranges (ranges::iota_view::size()): Perform all 3214 calculations in the right unsigned types. 3215 * testsuite/std/ranges/iota/size.cc: New test. 3216 3217 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3218 3219 Backported from master: 3220 2020-08-11 Jonathan Wakely <jwakely (a] redhat.com> 3221 3222 * include/experimental/executor (system_context::_M_run()): 3223 Fix predicate. 3224 (system_context::join()): Do not join unless joinable. 3225 * testsuite/experimental/net/system_context/1.cc: New test. 3226 3227 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3228 3229 Backported from master: 3230 2020-08-10 Jonathan Wakely <jwakely (a] redhat.com> 3231 3232 * include/bits/stl_iterator.h (inserter): Do not deduce 3233 iterator type (LWG 561). 3234 * testsuite/24_iterators/insert_iterator/dr561.cc: New test. 3235 3236 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3237 3238 Backported from master: 3239 2020-10-27 Jonathan Wakely <jwakely (a] redhat.com> 3240 3241 * include/bits/fs_path.h (path::_List::begin, path::_List::end): 3242 Add noexcept to match definitions in src/c++17/fs_path.cc. 3243 3244 2021-03-29 Jonathan Wakely <jwakely (a] redhat.com> 3245 3246 Backported from master: 3247 2020-10-27 Jonathan Wakely <jwakely (a] redhat.com> 3248 3249 * src/c++17/fs_dir.cc (fs::directory_iterator::operator*): 3250 Add noexcept. Do not throw on precondition violation. 3251 3252 2021-03-19 Jakub Jelinek <jakub (a] redhat.com> 3253 3254 Backported from master: 3255 2021-02-23 Jakub Jelinek <jakub (a] redhat.com> 3256 3257 PR libstdc++/99181 3258 * testsuite/21_strings/char_traits/requirements/char/99181.cc: New 3259 test. 3260 3261 2021-03-19 Jakub Jelinek <jakub (a] redhat.com> 3262 3263 Backported from master: 3264 2021-02-23 Jakub Jelinek <jakub (a] redhat.com> 3265 3266 PR libstdc++/99181 3267 * include/bits/char_traits.h (char_traits<char>::compare): For 3268 constexpr evaluation don't call 3269 __gnu_cxx::char_traits<char_type>::compare but do the comparison loop 3270 directly. 3271 3272 2021-02-09 Jonathan Wakely <jwakely (a] redhat.com> 3273 3274 Backported from master: 3275 2021-02-09 Jonathan Wakely <jwakely (a] redhat.com> 3276 3277 PR libstdc++/99021 3278 * include/std/coroutine (coroutine_handle<P>::from_address): Add 3279 noexcept. 3280 3281 2021-01-13 Jonathan Wakely <jwakely (a] redhat.com> 3282 3283 PR libstdc++/98605 3284 * include/std/mutex (call_once): Use NOLINT to suppress clang 3285 analyzer warnings. 3286 3287 2021-01-11 Jonathan Wakely <jwakely (a] redhat.com> 3288 3289 Backported from master: 3290 2020-12-02 Jonathan Wakely <jwakely (a] redhat.com> 3291 3292 * python/libstdcxx/v6/printers.py (StdExpPathPrinter): Store the 3293 name of the type and pass it to the iterator. 3294 (StdPathPrinter): Likewise. 3295 * testsuite/libstdc++-prettyprinters/filesystem-ts.cc: New test. 3296 3297 2021-01-11 Jonathan Wakely <jwakely (a] redhat.com> 3298 3299 Backported from master: 3300 2020-12-16 Jonathan Wakely <jwakely (a] redhat.com> 3301 3302 PR libstdc++/96083 3303 * include/ext/throw_allocator.h: Use __has_builtin to check for 3304 __builtin_sprintf support, and use std::sprintf if necessary. 3305 3306 2021-01-11 Jonathan Wakely <jwakely (a] redhat.com> 3307 3308 Backported from master: 3309 2020-12-02 Jonathan Wakely <jwakely (a] redhat.com> 3310 3311 PR libstdc++/65480 3312 PR libstdc++/68735 3313 * python/libstdcxx/v6/printers.py (function_pointer_to_name): 3314 New helper function to get the name of a function from its 3315 address. 3316 (StdExpAnyPrinter.__init__): Use it. 3317 3318 2021-01-11 Jonathan Wakely <jwakely (a] redhat.com> 3319 3320 Backported from master: 3321 2020-07-31 Jonathan Wakely <jwakely (a] redhat.com> 3322 3323 * testsuite/experimental/filesystem/filesystem_error/cons.cc: 3324 Remove -std=gnu++17 option. 3325 3326 2021-01-08 Iain Sandoe <iain (a] sandoe.co.uk> 3327 3328 Backported from master: 3329 2020-07-17 Iain Sandoe <iain (a] sandoe.co.uk> 3330 3331 * include/std/coroutine: Mark the methods of the 3332 trivial awaitables as constexpr. 3333 3334 2021-01-03 Iain Sandoe <iain (a] sandoe.co.uk> 3335 Jakub Jelinek <jakub (a] redhat.com> 3336 3337 PR target/97865 3338 * configure: Regenerate. 3339 3340 2020-12-03 Jonathan Wakely <jwakely (a] redhat.com> 3341 3342 Backported from master: 3343 2020-12-03 Jonathan Wakely <jwakely (a] redhat.com> 3344 3345 * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: 3346 Update. 3347 * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: 3348 Update. 3349 3350 2020-12-01 Patrick Palka <ppalka (a] redhat.com> 3351 3352 Backported from master: 3353 2020-10-12 Patrick Palka <ppalka (a] redhat.com> 3354 3355 PR libstdc++/95322 3356 * include/std/ranges (take_view::_CI): Define this alias 3357 template as per LWG 3449 and remove ... 3358 (take_view::_Sentinel::_CI): ... this type alias. 3359 (take_view::_Sentinel::operator==): Adjust use of _CI 3360 accordingly. Define a second overload that accepts an iterator 3361 of the opposite constness as per LWG 3449. 3362 (take_while_view::_Sentinel::operator==): Likewise. 3363 * testsuite/std/ranges/adaptors/95322.cc: Add tests for LWG 3449. 3364 3365 2020-11-26 Jonathan Wakely <jwakely (a] redhat.com> 3366 3367 Backported from master: 3368 2020-11-26 Jonathan Wakely <jwakely (a] redhat.com> 3369 3370 PR libstdc++/98001 3371 * testsuite/ext/stdio_filebuf/char/79820.cc: Do not pass invalid 3372 FILE* to constructor. 3373 3374 2020-11-25 Jonathan Wakely <jwakely (a] redhat.com> 3375 3376 Backported from master: 3377 2020-11-25 Jonathan Wakely <jwakely (a] redhat.com> 3378 3379 PR libstdc++/97935 3380 * include/bits/iterator_concepts.h (__detail::__iter_without_category): 3381 New helper concept. 3382 (__iterator_traits::__cat): Use __detail::__iter_without_category. 3383 * testsuite/24_iterators/associated_types/iterator.traits.cc: New test. 3384 3385 2020-11-25 Jonathan Wakely <jwakely (a] redhat.com> 3386 3387 Backported from master: 3388 2020-06-04 Jonathan Wakely <jwakely (a] redhat.com> 3389 3390 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref) 3391 (__detail::__cat, __detail::__diff): Move to class scope in the 3392 relevant __iterator_traits specializations. 3393 (__iterator_traits<>): Use nested class templates instead of ones from 3394 namespace __detail. 3395 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to 3396 class scope in iterator_traits<common_iterator<I, S>>. 3397 (iterator_traits<common_iterator<I, S>>): Use nested class template 3398 instead of __detail::__common_iter_ptr. 3399 3400 2020-11-24 Jonathan Wakely <jwakely (a] redhat.com> 3401 3402 Backported from master: 3403 2020-10-02 Jonathan Wakely <jwakely (a] redhat.com> 3404 3405 * testsuite/29_atomics/atomic_float/value_init.cc: Use float 3406 instead of double so that __atomic_load_8 isn't needed. 3407 3408 2020-11-20 Jonathan Wakely <jwakely (a] redhat.com> 3409 3410 Backported from master: 3411 2020-11-20 Jonathan Wakely <jwakely (a] redhat.com> 3412 3413 PR libstdc++/92546 3414 * include/std/regex (pmr::smatch, pmr::wsmatch): Declare using 3415 underlying __normal_iterator type, not nested typedef 3416 basic_string::const_iterator. 3417 3418 2020-11-20 Jonathan Wakely <jwakely (a] redhat.com> 3419 3420 PR libstdc++/97876 3421 * include/std/stop_token (_Stop_state_t): Define default 3422 constructor as user-provided not defaulted. 3423 3424 2020-11-20 Jonathan Wakely <jwakely (a] redhat.com> 3425 3426 Backported from master: 3427 2020-11-19 Jonathan Wakely <jwakely (a] redhat.com> 3428 3429 PR libstdc++/95989 3430 * config/os/gnu-linux/os_defines.h (_GLIBCXX_NATIVE_THREAD_ID): 3431 Define new macro to get reliable thread ID. 3432 * include/std/stop_token (_Stop_state_t::_M_request_stop): 3433 Use new macro if it's defined. 3434 (_Stop_state_t::_M_remove_callback): Likewise. 3435 * include/std/thread (this_thread::get_id): Likewise. 3436 * testsuite/30_threads/jthread/95989.cc: New test. 3437 * testsuite/30_threads/this_thread/95989.cc: New test. 3438 3439 2020-11-18 Patrick Palka <ppalka (a] redhat.com> 3440 3441 Backported from master: 3442 2020-11-18 Patrick Palka <ppalka (a] redhat.com> 3443 3444 * include/std/ranges (join_view::_Iterator::_M_satisfy): Uglify 3445 local variable inner. 3446 (join_view::_Iterator::operator->): Use _Inner_iter instead of 3447 _Outer_iter in the function signature as per LWG 3500. 3448 * testsuite/std/ranges/adaptors/join.cc (test08): Test it. 3449 3450 2020-11-18 Jonathan Wakely <jwakely (a] redhat.com> 3451 3452 Backported from master: 3453 2020-10-06 Jonathan Wakely <jwakely (a] redhat.com> 3454 3455 * include/std/ranges (join_view): Remove deduction guide. 3456 (views::join): Add explicit template argument list to prevent 3457 deducing the wrong type. 3458 * testsuite/std/ranges/adaptors/join.cc: Move test for LWG 3474 3459 here, from ... 3460 * testsuite/std/ranges/adaptors/join_lwg3474.cc: Removed. 3461 3462 2020-11-18 Jonathan Wakely <jwakely (a] redhat.com> 3463 3464 Backported from master: 3465 2020-08-24 Jonathan Wakely <jwakely (a] redhat.com> 3466 3467 * include/std/ranges (join_view): Add deduction guide (LWG 3474). 3468 * testsuite/std/ranges/adaptors/join_lwg3474.cc: New test. 3469 3470 2020-11-18 Jonathan Wakely <jwakely (a] redhat.com> 3471 3472 Backported from master: 3473 2020-09-10 Jonathan Wakely <jwakely (a] redhat.com> 3474 3475 * include/std/version (__cpp_lib_array_constexpr) 3476 (__cpp_lib_constexpr_char_traits): Only define C++17 value when 3477 compiling C++17. 3478 3479 2020-11-18 Jonathan Wakely <jwakely (a] redhat.com> 3480 3481 Backported from master: 3482 2020-06-15 Jonathan Wakely <jwakely (a] redhat.com> 3483 3484 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): 3485 Update value for C++20. 3486 * include/std/version (__cpp_lib_constexpr_char_traits): Likewise. 3487 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc: 3488 Update expected value. 3489 3490 2020-11-18 Jonathan Wakely <jwakely (a] redhat.com> 3491 3492 Backported from master: 3493 2020-11-17 Jonathan Wakely <jwakely (a] redhat.com> 3494 3495 PR libstdc++/97869 3496 * include/precompiled/stdc++.h: Include <coroutine>. 3497 * include/std/version (__cpp_lib_span): Check __cpp_lib_concepts 3498 before defining. 3499 3500 2020-11-17 Patrick Palka <ppalka (a] redhat.com> 3501 3502 Backported from master: 3503 2020-11-17 Patrick Palka <ppalka (a] redhat.com> 3504 3505 PR libstdc++/97828 3506 * include/bits/ranges_algo.h (__search_n_fn::operator()): Check 3507 random_access_iterator before using the backtracking 3508 implementation. When the backwards scan fails prematurely, 3509 reset __remainder appropriately. 3510 * testsuite/25_algorithms/search_n/97828.cc: New test. 3511 3512 2020-11-16 Jonathan Wakely <jwakely (a] redhat.com> 3513 3514 Backported from master: 3515 2020-11-13 Jonathan Wakely <jwakely (a] redhat.com> 3516 3517 PR libstdc++/93456 3518 * src/c++11/futex.cc (relative_timespec): Remove redundant check 3519 negative values. 3520 * testsuite/30_threads/future/members/93456.cc: New. 3521 3522 2020-11-16 Jonathan Wakely <jwakely (a] redhat.com> 3523 3524 Backported from master: 3525 2020-11-16 Jonathan Wakely <jwakely (a] redhat.com> 3526 3527 * src/c++11/futex.cc (relative_timespec): New function to 3528 create relative time from two absolute times. 3529 (__atomic_futex_unsigned_base::_M_futex_wait_until): Use 3530 relative_timespec. 3531 3532 2020-11-16 Jonathan Wakely <jwakely (a] redhat.com> 3533 3534 Backported from master: 3535 2020-11-12 Jonathan Wakely <jwakely (a] redhat.com> 3536 3537 * include/std/future (future::wait_for): Do not wait for 3538 durations less than or equal to zero. 3539 * testsuite/30_threads/future/members/poll.cc: New test. 3540 3541 2020-11-13 Jonathan Wakely <jwakely (a] redhat.com> 3542 3543 Backported from master: 3544 2020-11-13 Jonathan Wakely <jwakely (a] redhat.com> 3545 3546 PR libstdc++/97798 3547 * include/ext/numeric_traits.h (__glibcxx_signed) 3548 (__glibcxx_digits, __glibcxx_min, __glibcxx_max): Remove 3549 macros. 3550 (__is_integer_nonstrict::__width): Define new constant. 3551 (__numeric_traits_integer): Define constants in terms of each 3552 other and __is_integer_nonstrict::__width, rather than the 3553 removed macros. 3554 (_GLIBCXX_INT_N_TRAITS): Macro to define explicit 3555 specializations for non-standard integer types. 3556 3557 2020-11-13 Jonathan Wakely <jwakely (a] redhat.com> 3558 3559 PR libstdc++/96042 3560 * testsuite/std/ranges/iota/96042.cc: Only assert that the 3561 difference type is wider than long long if __int128 is 3562 supported. 3563 3564 2020-11-12 Jonathan Wakely <jwakely (a] redhat.com> 3565 3566 Backported from master: 3567 2020-08-20 Jonathan Wakely <jwakely (a] redhat.com> 3568 3569 * include/bits/iterator_concepts.h [__STRICT_ANSI__] 3570 (incrementable_traits<__int128>): Define specialization. 3571 (incrementable_traits<unsigned __int128>): Likewise. 3572 * testsuite/std/ranges/iota/96042.cc: Test iota_view with 3573 __int128. 3574 3575 2020-11-12 Jonathan Wakely <jwakely (a] redhat.com> 3576 3577 Backported from master: 3578 2020-08-19 Jonathan Wakely <jwakely (a] redhat.com> 3579 Patrick Palka <ppalka (a] redhat.com> 3580 3581 PR libstdc++/96042 3582 * include/bits/range_access.h (__detail::__to_unsigned_like): 3583 Do not use make_unsigned_t<T> in the return type, as it can 3584 result in an error before the integral<T> constraint is checked. 3585 [__STRICT_ANSI__]: Add overloads for 128-bit integer types. 3586 (__detail::__make_unsigned_like_t): Define as the return type 3587 of __to_unsigned_like. 3588 * testsuite/std/ranges/subrange/96042.cc: New test. 3589 3590 2020-11-12 Jonathan Wakely <jwakely (a] redhat.com> 3591 3592 Backported from master: 3593 2020-08-19 Jonathan Wakely <jwakely (a] redhat.com> 3594 3595 PR libstdc++/96042 3596 * include/ext/numeric_traits.h (__is_integer_nonstrict): New 3597 trait which is true for 128-bit integers even in strict modes. 3598 (__numeric_traits_integer, __numeric_traits): Use 3599 __is_integer_nonstrict instead of __is_integer. 3600 * include/std/limits [__STRICT_ANSI__ && __SIZEOF_INT128__] 3601 (numeric_limits<__int128>, (numeric_limits<unsigned __int128>): 3602 Define. 3603 * testsuite/std/ranges/iota/96042.cc: New test. 3604 3605 2020-11-11 Paul Scharnofske <asynts (a] gmail.com> 3606 3607 Backported from master: 3608 2020-11-11 Paul Scharnofske <asynts (a] gmail.com> 3609 3610 * include/std/thread (jthread::operator=(jthread&&)): Transfer 3611 any existing state to a temporary that will request a stop and 3612 then join. 3613 * testsuite/30_threads/jthread/jthread.cc: Test move assignment. 3614 3615 2020-11-05 Jonathan Wakely <jwakely (a] redhat.com> 3616 3617 Backported from master: 3618 2020-11-05 Jonathan Wakely <jwakely (a] redhat.com> 3619 3620 PR libstdc++/96269 3621 * include/std/optional (operator==, operator!=, operator<) 3622 (operator>, operator<=, operator>=): Fix types used in 3623 SFINAE constraints. 3624 * testsuite/20_util/optional/relops/96269.cc: New test. 3625 3626 2020-11-05 Jonathan Wakely <jwakely (a] redhat.com> 3627 3628 Backported from master: 3629 2020-11-05 Jonathan Wakely <jwakely (a] redhat.com> 3630 3631 PR libstdc++/97731 3632 * src/filesystem/dir.cc (recursive_directory_iterator): Call the 3633 right overload of _Dir::advance. 3634 * testsuite/experimental/filesystem/iterators/97731.cc: New test. 3635 3636 2020-11-05 Jonathan Wakely <jwakely (a] redhat.com> 3637 3638 Backported from master: 3639 2020-10-10 Jonathan Wakely <jwakely (a] redhat.com> 3640 3641 PR libstdc++/97362 3642 * doc/html/manual/source_code_style.html: Regenerate. 3643 * doc/xml/manual/appendix_contributing.xml: Add __deref to 3644 BADNAMES. 3645 * include/debug/functions.h (_Irreflexive_checker::__deref): 3646 Rename to __ref. 3647 * testsuite/17_intro/badnames.cc: Check __deref. 3648 3649 2020-11-04 Jonathan Wakely <jwakely (a] redhat.com> 3650 3651 Backported from master: 3652 2020-11-04 Jonathan Wakely <jwakely (a] redhat.com> 3653 3654 PR libstdc++/92285 3655 * doc/xml/manual/evolution.xml: Document change to base class. 3656 * doc/html/manual/api.html: Regenerate. 3657 3658 2020-11-04 Jonathan Wakely <jwakely (a] redhat.com> 3659 3660 * doc/xml/manual/evolution.xml: Document new C++20 headers. 3661 * doc/html/*: Regenerate. 3662 3663 2020-11-04 Jonathan Wakely <jwakely (a] redhat.com> 3664 3665 Backported from master: 3666 2020-06-01 Jonathan Wakely <jwakely (a] redhat.com> 3667 3668 * doc/xml/manual/evolution.xml: Document deprecation of 3669 __is_nullptr_t and removal of std::allocator members. 3670 * doc/html/manual/api.html: Regenerate. 3671 3672 2020-11-04 Jonathan Wakely <jwakely (a] redhat.com> 3673 3674 Backported from master: 3675 2020-06-01 Jonathan Wakely <jwakely (a] redhat.com> 3676 3677 * doc/xml/manual/containers.xml: Replace <xref> with <link>. 3678 * doc/xml/manual/evolution.xml: Likewise. 3679 * doc/html/manual/api.html: Regenerate. 3680 * doc/html/manual/containers.html: Regenerate. 3681 3682 2020-10-29 Patrick Palka <ppalka (a] redhat.com> 3683 3684 Backported from master: 3685 2020-10-29 Patrick Palka <ppalka (a] redhat.com> 3686 3687 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: 3688 (test03): Fix initializing the vector vy with the array y of size 4. 3689 3690 2020-10-28 Patrick Palka <ppalka (a] redhat.com> 3691 3692 Backported from master: 3693 2020-10-23 Patrick Palka <ppalka (a] redhat.com> 3694 3695 * include/std/ranges (single_view::single_view): Mark the 3696 in place constructor explicit as per LWG 3428. 3697 (take_view): Remove the constraint on the deduction guide's 3698 template parameter as per LWG 3447. 3699 3700 2020-10-21 Patrick Palka <ppalka (a] redhat.com> 3701 3702 Backported from master: 3703 2020-09-22 Patrick Palka <ppalka (a] redhat.com> 3704 3705 * include/std/span (span::front): Remove static_assert. 3706 (span::back): Likewise. 3707 (span::operator[]): Likewise. 3708 * testsuite/23_containers/span/back_neg.cc: Rewrite to verify 3709 that we check the preconditions of back() only when it's called. 3710 * testsuite/23_containers/span/front_neg.cc: Likewise for 3711 front(). 3712 * testsuite/23_containers/span/index_op_neg.cc: Likewise for 3713 operator[]. 3714 3715 2020-10-21 Patrick Palka <ppalka (a] redhat.com> 3716 3717 Backported from master: 3718 2020-10-12 Patrick Palka <ppalka (a] redhat.com> 3719 3720 * include/std/ranges (take_while_view::begin): Constrain the 3721 const overload further as per LWG 3450. 3722 (take_while_view::end): Likewise. 3723 * testsuite/std/ranges/adaptors/take_while.cc: Add test for LWG 3724 3450. 3725 3726 2020-10-21 Patrick Palka <ppalka (a] redhat.com> 3727 3728 Backported from master: 3729 2020-09-22 Patrick Palka <ppalka (a] redhat.com> 3730 3731 * include/bits/stl_algo.h (__sample): Exit early when the 3732 input range is empty. 3733 * testsuite/25_algorithms/sample/3.cc: New test. 3734 3735 2020-10-21 Patrick Palka <ppalka (a] redhat.com> 3736 3737 Backported from master: 3738 2020-09-22 Patrick Palka <ppalka (a] redhat.com> 3739 3740 * include/bits/stl_algo.h (for_each_n): Mark constexpr for C++20. 3741 (search): Likewise for the overload that takes a searcher. 3742 * testsuite/25_algorithms/for_each/constexpr.cc: Test constexpr 3743 std::for_each_n. 3744 * testsuite/25_algorithms/search/constexpr.cc: Test constexpr 3745 std::search overload that takes a searcher. 3746 3747 2020-10-21 Patrick Palka <ppalka (a] redhat.com> 3748 3749 Backported from master: 3750 2020-08-27 Patrick Palka <ppalka (a] redhat.com> 3751 3752 PR libstdc++/95322 3753 * include/std/ranges (transform_view::sentinel::__distance_from): 3754 Give this a deduced return type. 3755 (transform_view::sentinel::operator-): Adjust the return type so 3756 that it's based on the constness of the iterator rather than 3757 that of the sentinel. 3758 * testsuite/std/ranges/adaptors/95322.cc: Refer to LWG 3488. 3759 3760 2020-10-21 Patrick Palka <ppalka (a] redhat.com> 3761 3762 Backported from master: 3763 2020-08-27 Patrick Palka <ppalka (a] redhat.com> 3764 3765 * include/std/ranges (elements_view::begin): Adjust constraints. 3766 (elements_view::end): Likewise. 3767 (elements_view::_Sentinel::operator==): Templatize to take both 3768 _Iterator<true> and _Iterator<false>. 3769 (elements_view::_Sentinel::operator-): Likewise. 3770 * testsuite/std/ranges/adaptors/elements.cc: Add testcase for 3771 the example from P1994R1. 3772 * testsuite/std/ranges/adaptors/lwg3406.cc: New test. 3773 3774 2020-10-21 Patrick Palka <ppalka (a] redhat.com> 3775 3776 Backported from master: 3777 2020-08-27 Patrick Palka <ppalka (a] redhat.com> 3778 3779 * include/std/ranges (elements_view::end): Replace these two 3780 overloads with four new overloads. 3781 (elements_view::_Iterator::operator==): Remove. 3782 (elements_view::_Iterator::operator-): Likewise. 3783 (elements_view::_Sentinel): Define. 3784 3785 2020-10-20 Jonathan Wakely <jwakely (a] redhat.com> 3786 3787 Backported from master: 3788 2020-08-10 Jonathan Wakely <jwakely (a] redhat.com> 3789 3790 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__): 3791 Use gdb.Type.strip_typedefs(). 3792 * testsuite/libstdc++-prettyprinters/compat.cc: Use a typedef in 3793 the emulated old type. 3794 3795 2020-10-20 Jonathan Wakely <jwakely (a] redhat.com> 3796 3797 Backported from master: 3798 2020-10-14 Jonathan Wakely <jwakely (a] redhat.com> 3799 3800 * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI] 3801 (basic_string(const _CharT*, const _Alloc&)): Constrain to 3802 require an allocator-like type to fix CTAD ambiguity (LWG 3706). 3803 Define inline. 3804 * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI] 3805 (basic_string(const _CharT*, const _Alloc&)): Remove non-inline 3806 definition. 3807 * testsuite/21_strings/basic_string/cons/char/deduction.cc: 3808 Remove dg-skip-if. 3809 * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc: 3810 Likewise. 3811 3812 2020-10-20 Jonathan Wakely <jwakely (a] redhat.com> 3813 3814 Backported from master: 3815 2020-10-14 Jonathan Wakely <jwakely (a] redhat.com> 3816 3817 * testsuite/21_strings/basic_string/allocator/char/minimal.cc: 3818 Do not require cxx11-abi effective target. 3819 * testsuite/21_strings/basic_string/allocator/wchar_t/minimal.cc: 3820 Likewise. 3821 * testsuite/27_io/basic_fstream/cons/base.cc: Likewise. 3822 3823 2020-10-20 Jonathan Wakely <jwakely (a] redhat.com> 3824 3825 Backported from master: 3826 2020-10-08 Jonathan Wakely <jwakely (a] redhat.com> 3827 3828 * include/bits/ios_base.h (ios_base::failure): Add constructors 3829 takeing error_code argument. Add code() member function. 3830 * testsuite/27_io/ios_base/failure/cxx11.cc: Allow test to 3831 run for the old ABI but do not check for derivation from 3832 std::system_error. 3833 * testsuite/27_io/ios_base/failure/error_code.cc: New test. 3834 3835 2020-10-20 Nuno Lopes <nuno.lopes (a] ist.utl.pt> 3836 3837 Backported from master: 3838 2020-10-13 Nuno Lopes <nuno.lopes (a] ist.utl.pt> 3839 3840 * include/bits/stl_algo.h (any_of): Fix incorrect description 3841 in comment. 3842 3843 2020-10-20 Jonathan Wakely <jwakely (a] redhat.com> 3844 3845 Backported from master: 3846 2020-10-12 Jonathan Wakely <jwakely (a] redhat.com> 3847 3848 * include/bits/stl_algobase.h (copy, move, copy_backward) 3849 (move_backward): Fix documentation for returned iterator. 3850 3851 2020-10-20 Jonathan Wakely <jwakely (a] redhat.com> 3852 3853 Backported from master: 3854 2020-09-24 Jonathan Wakely <jwakely (a] redhat.com> 3855 3856 * doc/xml/manual/configure.xml: Correct name of option. 3857 * doc/html/*: Regenerate. 3858 3859 2020-10-19 Jonathan Wakely <jwakely (a] redhat.com> 3860 3861 Backported from master: 3862 2020-09-21 Jonathan Wakely <jwakely (a] redhat.com> 3863 3864 PR libstdc++/97132 3865 * include/std/memory (assume_aligned): Do not use 3866 __builtin_assume_aligned during constant evaluation. 3867 * testsuite/20_util/assume_aligned/1.cc: Improve test. 3868 * testsuite/20_util/assume_aligned/97132.cc: New test. 3869 3870 2020-10-15 Jonathan Wakely <jwakely (a] redhat.com> 3871 3872 Backported from master: 3873 2020-10-15 Jonathan Wakely <jwakely (a] redhat.com> 3874 3875 * include/std/concepts: Fix typos in copyright notice. 3876 * include/std/ranges: Likewise. 3877 3878 2020-10-15 Jonathan Wakely <jwakely (a] redhat.com> 3879 3880 * doc/xml/manual/status_cxx2020.xml: Remove red background for 3881 completed feature. 3882 * doc/html/manual/status.html: Regenerate. 3883 3884 2020-10-13 Patrick Palka <ppalka (a] redhat.com> 3885 3886 Backported from master: 3887 2020-10-08 Patrick Palka <ppalka (a] redhat.com> 3888 3889 PR libstdc++/95788 3890 * include/bits/ranges_uninitialized.h: 3891 (__construct_at_fn::operator()): Rewrite in terms of 3892 std::construct_at. Declare it conditionally noexcept. Qualify 3893 calls to declval in its requires-clause. 3894 * testsuite/20_util/specialized_algorithms/construct_at/95788.cc: 3895 New test. 3896 3897 2020-10-08 Jonathan Wakely <jwakely (a] redhat.com> 3898 3899 Backported from master: 3900 2020-10-07 Jonathan Wakely <jwakely (a] redhat.com> 3901 3902 * include/bits/random.h (seed_seq(initializer_list<T>)): Rename 3903 parameter to use reserved name. 3904 * include/bits/ranges_algo.h (shift_left, shift_right): Rename 3905 template parameters to use reserved name. 3906 * testsuite/17_intro/names.cc: Check "il". Do not check "d" and 3907 "y" in C++20 mode. 3908 3909 2020-10-06 Patrick Palka <ppalka (a] redhat.com> 3910 3911 Backported from master: 3912 2020-10-02 Patrick Palka <ppalka (a] redhat.com> 3913 3914 * include/bits/stl_iterator.h (reverse_iterator::iter_move): 3915 Define for C++20 as per P0896. 3916 (reverse_iterator::iter_swap): Likewise. 3917 (move_iterator::operator*): Apply P0896 changes for C++20. 3918 (move_iterator::operator[]): Likewise. 3919 * testsuite/24_iterators/reverse_iterator/cust.cc: New test. 3920 3921 2020-09-22 Jonathan Wakely <jwakely (a] redhat.com> 3922 3923 Backported from master: 3924 2020-09-22 Jonathan Wakely <jwakely (a] redhat.com> 3925 3926 PR libstdc++/97167 3927 * src/c++17/fs_path.cc (path::_Parser::root_path()): Check 3928 for empty string before inspecting the first character. 3929 * testsuite/27_io/filesystem/path/append/source.cc: Append 3930 empty string_view to path. 3931 3932 2020-09-22 Jonathan Wakely <jwakely (a] redhat.com> 3933 3934 Backported from master: 3935 2020-09-22 Jonathan Wakely <jwakely (a] redhat.com> 3936 3937 PR libstdc++/96803 3938 * include/std/tuple 3939 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)): 3940 Use correct value category in __use_alloc call. 3941 * testsuite/20_util/tuple/cons/96803.cc: Check with constructors 3942 that require correct value category to be used. 3943 3944 2020-09-22 Jonathan Wakely <jwakely (a] redhat.com> 3945 3946 Backported from master: 3947 2020-08-26 Jonathan Wakely <jwakely (a] redhat.com> 3948 3949 PR libstdc++/96803 3950 * include/std/tuple 3951 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)): 3952 Replace parameter pack with a type parameter and a pack and pass 3953 the first type to __use_alloc. 3954 * testsuite/20_util/tuple/cons/96803.cc: New test. 3955 3956 2020-09-21 Jonathan Wakely <jwakely (a] redhat.com> 3957 3958 Backported from master: 3959 2020-08-10 Jonathan Wakely <jwakely (a] redhat.com> 3960 3961 PR libstdc++/94681 3962 * src/c++17/fs_ops.cc (read_symlink): Use posix::lstat instead 3963 of calling ::lstat directly. 3964 * src/filesystem/ops.cc (read_symlink): Likewise. 3965 3966 2020-09-21 Jonathan Wakely <jwakely (a] redhat.com> 3967 3968 Backported from master: 3969 2020-08-10 Jonathan Wakely <jwakely (a] redhat.com> 3970 3971 PR libstdc++/94681 3972 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Do not depend on 3973 $enable_libstdcxx_filesystem_ts. 3974 * configure: Regenerate. 3975 3976 2020-09-21 Jonathan Wakely <jwakely (a] redhat.com> 3977 3978 Backported from master: 3979 2020-09-20 Jonathan Wakely <jwakely (a] redhat.com> 3980 3981 PR libstdc++/97101 3982 * include/std/functional (bind_front): Fix order of parameters 3983 in is_nothrow_constructible_v specialization. 3984 * testsuite/20_util/function_objects/bind_front/97101.cc: New test. 3985 3986 2020-09-21 Jonathan Wakely <jwakely (a] redhat.com> 3987 3988 Backported from master: 3989 2020-09-10 Jonathan Wakely <jwakely (a] redhat.com> 3990 3991 PR libstdc++/94160 3992 * src/c++17/memory_resource.cc (munge_options): Round 3993 max_blocks_per_chunk to a multiple of four. 3994 (__pool_resource::_M_alloc_pools()): Simplify slightly. 3995 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: 3996 Check that valid pointers are returned when small values are 3997 used for max_blocks_per_chunk. 3998 3999 2020-09-03 Jonathan Wakely <jwakely (a] redhat.com> 4000 4001 Backported from master: 4002 2020-07-07 Jonathan Wakely <jwakely (a] redhat.com> 4003 4004 * include/Makefile.am: Remove bits/int_limits.h. 4005 * include/Makefile.in: Regenerate. 4006 * include/bits/int_limits.h: Removed. 4007 * include/bits/parse_numbers.h (_Select_int_base): Replace 4008 __int_limits with __int_traits. 4009 * include/bits/range_access.h (_SSize::operator()): Likewise. 4010 * include/ext/numeric_traits.h (__numeric_traits_integer): Add 4011 static assertion. 4012 (__int_traits): New alias template. 4013 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one) 4014 (__countr_zero, __countr_one, __popcount, __bit_ceil) 4015 (__bit_floor, __bit_width) Replace __int_limits with 4016 __int_traits. 4017 * include/std/charconv (__to_chars_8, __from_chars_binary) 4018 (__from_chars_alpha_to_num, from_chars): Likewise. 4019 * include/std/memory_resource (polymorphic_allocator::allocate) 4020 (polymorphic_allocator::allocate_object): Likewise. 4021 * include/std/string_view (basic_string_view::_S_compare): 4022 Likewise. 4023 * include/std/utility (cmp_equal, cmp_less, in_range): Likewise. 4024 4025 2020-09-02 Jonathan Wakely <jwakely (a] redhat.com> 4026 4027 Backported from master: 4028 2020-08-28 Jonathan Wakely <jwakely (a] redhat.com> 4029 4030 PR libstdc++/92978 4031 * include/std/numeric (__abs_integral): Replace with ... 4032 (__detail::__absu): New function template that returns an 4033 unsigned type, guaranteeing it can represent the most 4034 negative signed value. 4035 (__detail::__gcd, __detail::__lcm): Require arguments to 4036 be unsigned and therefore already non-negative. 4037 (gcd, lcm): Convert arguments to absolute value as unsigned 4038 type before calling __detail::__gcd or __detail::__lcm. 4039 * include/experimental/numeric (gcd, lcm): Likewise. 4040 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust expected 4041 errors. 4042 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise. 4043 * testsuite/26_numerics/gcd/92978.cc: New test. 4044 * testsuite/26_numerics/lcm/92978.cc: New test. 4045 * testsuite/experimental/numeric/92978.cc: New test. 4046 4047 2020-09-02 Jonathan Wakely <jwakely (a] redhat.com> 4048 4049 Backported from master: 4050 2020-09-02 Jonathan Wakely <jwakely (a] redhat.com> 4051 4052 PR libstdc++/96851 4053 * include/bits/cpp_type_traits.h (__is_memcmp_ordered): 4054 New trait that says if memcmp can be used for ordering. 4055 (__is_memcmp_ordered_with): Likewise, for two types. 4056 * include/bits/ranges_algo.h (__lexicographical_compare_fn): 4057 Use new traits instead of __is_byte and __numeric_traits. 4058 * include/bits/stl_algobase.h (__lexicographical_compare_aux1) 4059 (__is_byte_iter): Likewise. 4060 * include/std/array (operator<=>): Likewise. Only use memcmp 4061 when std::is_constant_evaluated() is false. 4062 * testsuite/23_containers/array/comparison_operators/96851.cc: 4063 New test. 4064 * testsuite/23_containers/array/tuple_interface/get_neg.cc: 4065 Adjust dg-error line numbers. 4066 4067 2020-09-02 Jonathan Wakely <jwakely (a] redhat.com> 4068 4069 * include/bits/stl_iterator.h (counted_iterator::operator++(int)): 4070 Use __throw_exception_again macro. 4071 4072 2020-08-26 Jonathan Wakely <jwakely (a] redhat.com> 4073 4074 Backported from master: 4075 2020-08-26 Jonathan Wakely <jwakely (a] redhat.com> 4076 4077 PR libstdc++/71960 4078 * include/experimental/string_view (basic_string_view): 4079 Enable debug assertions. 4080 * include/std/string_view (basic_string_view): 4081 Likewise. 4082 4083 2020-08-26 Jonathan Wakely <jwakely (a] redhat.com> 4084 4085 Backported from master: 4086 2020-08-24 Jonathan Wakely <jwakely (a] redhat.com> 4087 4088 PR libstdc++/96766 4089 * include/std/variant (_Variant_storage): Replace implicit 4090 conversions from size_t to __index_type with explicit casts. 4091 4092 2020-08-21 Jonathan Wakely <jwakely (a] redhat.com> 4093 4094 Backported from master: 4095 2020-08-21 Jonathan Wakely <jwakely (a] redhat.com> 4096 4097 PR libstdc++/96718 4098 * testsuite/25_algorithms/pstl/feature_test-2.cc: Require 4099 tbb-backend effective target. 4100 * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise. 4101 * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise. 4102 * testsuite/25_algorithms/pstl/feature_test.cc: Likewise. 4103 4104 2020-08-19 Jonathan Wakely <jwakely (a] redhat.com> 4105 4106 Backported from master: 4107 2020-08-19 Jonathan Wakely <jwakely (a] redhat.com> 4108 4109 * include/bits/c++config (_GLIBCXX_DEPRECATED_SUGGEST): New 4110 macro for "use 'foo' instead" message in deprecated warnings. 4111 * include/bits/ios_base.h (io_state, open_mode, seek_dir) 4112 (streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST. 4113 * include/std/streambuf (stossc): Replace C++11 attribute 4114 with _GLIBCXX_DEPRECATED_SUGGEST. 4115 * include/std/type_traits (__is_nullptr_t): Use 4116 _GLIBCXX_DEPRECATED_SUGGEST instead of _GLIBCXX_DEPRECATED. 4117 * testsuite/27_io/types/1.cc: Check for deprecated warnings. 4118 Also check for io_state, open_mode and seek_dir typedefs. 4119 4120 2020-08-11 Jonathan Wakely <jwakely (a] redhat.com> 4121 4122 PR libstdc++/89760 4123 * testsuite/experimental/net/execution_context/make_service.cc: 4124 Add dg-require-gthreads. 4125 * testsuite/experimental/net/executor/1.cc: Likewise. 4126 * testsuite/experimental/net/headers.cc: Likewise. 4127 * testsuite/experimental/net/internet/address/v4/comparisons.cc: 4128 Likewise. 4129 * testsuite/experimental/net/internet/address/v4/cons.cc: 4130 Likewise. 4131 * testsuite/experimental/net/internet/address/v4/creation.cc: 4132 Likewise. 4133 * testsuite/experimental/net/internet/address/v4/members.cc: 4134 Likewise. 4135 * testsuite/experimental/net/internet/resolver/base.cc: 4136 Likewise. 4137 * testsuite/experimental/net/internet/resolver/ops/lookup.cc: 4138 Likewise. 4139 * testsuite/experimental/net/internet/resolver/ops/reverse.cc: 4140 Likewise. 4141 * testsuite/experimental/net/socket/basic_socket.cc: Likewise. 4142 * testsuite/experimental/net/timer/waitable/cons.cc: Likewise. 4143 * testsuite/experimental/net/timer/waitable/dest.cc: Likewise. 4144 * testsuite/experimental/net/timer/waitable/ops.cc: Likewise. 4145 4146 2020-08-10 Jonathan Wakely <jwakely (a] redhat.com> 4147 4148 Backported from master: 4149 2020-08-10 Jonathan Wakely <jwakely (a] redhat.com> 4150 4151 PR libstdc++/95749 4152 * src/filesystem/ops-common.h [_GLIBCXX_FILESYSTEM_IS_WINDOWS] 4153 (stat_type): Change to __stat64. 4154 (stat): Use _wstat64. 4155 4156 2020-08-07 Jonathan Wakely <jwakely (a] redhat.com> 4157 4158 Backported from master: 4159 2020-08-07 Jonathan Wakely <jwakely (a] redhat.com> 4160 4161 PR libstdc++/96303 4162 * include/debug/bitset (bitset::operator==): Call _M_base() on 4163 right operand. 4164 (bitset::operator!=): Likewise, but don't define it at all when 4165 default comparisons are supported by the compiler. 4166 * testsuite/23_containers/bitset/operations/96303.cc: New test. 4167 4168 2020-08-06 Jonathan Wakely <jwakely (a] redhat.com> 4169 4170 Backported from master: 4171 2020-08-06 Jonathan Wakely <jwakely (a] redhat.com> 4172 4173 PR libstdc++/96484 4174 * src/c++17/fs_ops.cc (fs::read_symlink): Return an error 4175 immediately for non-symlinks. 4176 * src/filesystem/ops.cc (fs::read_symlink): Likewise. 4177 4178 2020-07-23 Release Manager 4179 4180 * GCC 10.2.0 released. 4181 4182 2020-07-09 Jonathan Wakely <jwakely (a] redhat.com> 4183 4184 Backported from master: 4185 2020-06-08 Jonathan Wakely <jwakely (a] redhat.com> 4186 4187 * include/bits/unique_ptr.h (operator<<): Define for C++20. 4188 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test. 4189 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error 4190 line number. 4191 * testsuite/20_util/default_delete/void_neg.cc: Likewise. 4192 4193 2020-07-09 Jonathan Wakely <jwakely (a] redhat.com> 4194 4195 Backported from master: 4196 2020-05-27 Jonathan Wakely <jwakely (a] redhat.com> 4197 4198 PR libstdc++/95322 4199 * include/std/ranges (transform_view::_Sentinel): Allow hidden 4200 friends to work with _Iterator<true> and _Iterator<false>. 4201 (join_view::_Sentinel): Likewise. 4202 * testsuite/std/ranges/adaptors/95322.cc: New test. 4203 4204 2020-07-09 Jonathan Wakely <jwakely (a] redhat.com> 4205 4206 Backported from master: 4207 2020-05-04 Jonathan Wakely <jwakely (a] redhat.com> 4208 4209 PR libstdc++/94936 4210 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools): 4211 Add comment about single-threaded behaviour. 4212 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist 4213 class member access out of loop. 4214 (synchronized_pool_resource::synchronized_pool_resource()) 4215 (synchronized_pool_resource::~synchronized_pool_resource()) 4216 (synchronized_pool_resource::release()): Check __gthread_active_p 4217 before creating and/or deleting the thread-specific data key. 4218 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust 4219 assertions. 4220 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast 4221 path for single-threaded case. 4222 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)): 4223 Likewise. Return if unable to find a pool that owns the allocation. 4224 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc: 4225 New test. 4226 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New 4227 test. 4228 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New 4229 test. 4230 4231 2020-07-09 Jonathan Wakely <jwakely (a] redhat.com> 4232 4233 Backported from master: 4234 2020-05-19 Jonathan Wakely <jwakely (a] redhat.com> 4235 4236 PR libstdc++/94087 4237 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be 4238 passed in. 4239 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand 4240 fallback. 4241 (random_device::_M_init): Use __x86_rdseed_rdrand when both 4242 instructions are available. 4243 * testsuite/26_numerics/random/random_device/94087.cc: New test. 4244 4245 2020-07-02 Ville Voutilainen <ville.voutilainen (a] gmail.com> 4246 4247 Backported from master: 4248 2020-07-02 Ville Voutilainen <ville.voutilainen (a] gmail.com> 4249 4250 PR libstdc++/91807 4251 * include/std/variant 4252 (_Copy_assign_base::operator=(const _Copy_assign_base&): 4253 Do the move-assignment from a temporary so that the temporary 4254 is constructed with an explicit index. 4255 * testsuite/20_util/variant/91807.cc: New. 4256 4257 2020-07-02 Jonathan Wakely <jwakely.gcc (a] gmail.com> 4258 4259 Backported from master: 4260 2020-07-02 Jonathan Wakely <jwakely.gcc (a] gmail.com> 4261 4262 PR libstdc++/91153 4263 PR target/93224 4264 * testsuite/29_atomics/atomic_float/1.cc: Use different values 4265 for tests. 4266 * testsuite/29_atomics/atomic_ref/float.cc: Likewise. 4267 4268 2020-07-01 Jonathan Wakely <jwakely (a] redhat.com> 4269 4270 Backported from master: 4271 2020-06-16 Jonathan Wakely <jwakely (a] redhat.com> 4272 4273 PR libstdc++/95282 4274 * include/bits/atomic_base.h (__atomic_impl::load): Add 4275 const-qualifier to parameter so that _Tp is deduced as the 4276 non-const type, and use _Val to get the unqualified type. 4277 (__atomic_impl::exchange): Use the _Val alias to remove 4278 volatile from the reinterpret_cast result type. 4279 * testsuite/29_atomics/atomic_float/95282.cc: New test. 4280 4281 2020-07-01 Jonathan Wakely <jwakely (a] redhat.com> 4282 4283 Backported from master: 4284 2020-07-01 Jonathan Wakely <jwakely (a] redhat.com> 4285 4286 PR libstdc++/94627 4287 * include/bits/regex.h (operator==, operator!=): Remove noexcept 4288 equality comparisons for match_results. 4289 * testsuite/28_regex/match_results/94627.cc: New test. 4290 4291 2020-06-29 Ville Voutilainen <ville.voutilainen (a] gmail.com> 4292 4293 Backported from master: 4294 2020-06-28 Ville Voutilainen <ville.voutilainen (a] gmail.com> 4295 4296 PR libstdc++/95915 4297 * include/std/variant (_Uninitialized): 4298 Adjust the condition and the comment. 4299 * testsuite/20_util/variant/95915.cc: New. 4300 * testsuite/20_util/variant/compile.cc: Add new test. 4301 4302 2020-06-24 Jonathan Wakely <jwakely (a] redhat.com> 4303 4304 Backported from master: 4305 2020-06-24 Jonathan Wakely <jwakely (a] redhat.com> 4306 4307 * include/std/charconv (__from_chars_binary): Ignore leading zeros. 4308 * testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases, 4309 not just 10 and 16. 4310 * testsuite/20_util/from_chars/3.cc: New test. 4311 4312 2020-06-24 Jonathan Wakely <jwakely (a] redhat.com> 4313 4314 Backported from master: 4315 2020-06-24 Jonathan Wakely <jwakely (a] redhat.com> 4316 4317 * include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers. 4318 * include/std/charconv (__detail::__to_chars): Avoid 4319 -Wsign-compare warning. 4320 4321 2020-06-24 Jonathan Wakely <jwakely (a] redhat.com> 4322 4323 Backported from master: 4324 2020-06-24 Jonathan Wakely <jwakely (a] redhat.com> 4325 4326 PR libstdc++/95851 4327 * include/std/charconv (__to_chars_i): Check for zero-sized 4328 buffer unconditionally. 4329 * testsuite/20_util/to_chars/95851.cc: New test. 4330 4331 2020-06-22 Jason Merrill <jason (a] redhat.com> 4332 4333 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: 4334 Remove greedy_ops tests. 4335 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: 4336 Remove greedy_ops tests. 4337 4338 2020-06-11 Patrick Palka <ppalka (a] redhat.com> 4339 4340 PR libstdc++/95578 4341 * include/bits/ranges_algo.h (__lexicographical_compare_fn): 4342 Also check that the iterator and sentinel have the same type before 4343 applying the unwrapping optimization for __normal_iterator. 4344 Split the check into two, one for the first iterator/sentinel 4345 pair and another for second iterator/sentinel pair. Remove uses 4346 of __niter_base, and remove uses of std::move on a 4347 __normal_iterator. 4348 * include/bits/ranges_algobase.h (__equal_fn): Likewise. 4349 (__copy_or_move): Likewise. Perform similar adjustments for 4350 the reverse_iterator and move_iterator optimizations. Inline 4351 the checks into the if-constexprs, and use using-declarations to 4352 make them less visually noisy. Remove uses of __niter_wrap. 4353 (__copy_or_move_backward): Likewise. 4354 * testsuite/25_algorithms/copy/95578.cc: New test. 4355 * testsuite/25_algorithms/copy_backward/95578.cc: New test. 4356 * testsuite/25_algorithms/equal/95578.cc: New test. 4357 * testsuite/25_algorithms/lexicographical_compare/95578.cc: New test. 4358 * testsuite/25_algorithms/move/95578.cc: New test. 4359 * testsuite/25_algorithms/move_backward/95578.cc: New test. 4360 4361 2020-05-28 Patrick Palka <ppalka (a] redhat.com> 4362 4363 PR libstdc++/95322 4364 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy): 4365 Remove and instead define it ... 4366 (common_iterator::_Proxy): ... here. 4367 (common_iterator::operator->): Use it. 4368 * testsuite/24_iterators/common_iterator/2.cc: New test. 4369 * testsuite/std/ranges/adaptors/95322.cc: New test. 4370 4371 2020-05-26 Alexandre Oliva <oliva (a] adacore.com> 4372 4373 PR libstdc++/77691 4374 * include/experimental/memory_resource 4375 (__resource_adaptor_imp::do_allocate): Handle max_align_t on 4376 x86-vxworks as on x86-solaris. 4377 (__resource_adaptor_imp::do_deallocate): Likewise. 4378 * testsuite/experimental/memory_resource/new_delete_resource.cc: 4379 Drop xfail. 4380 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris. 4381 (test03): Drop max-align test for char-aligned alloc. 4382 4383 2020-05-23 Jonathan Wakely <jwakely (a] redhat.com> 4384 4385 Backport from mainline 4386 2020-05-23 Jonathan Wakely <jwakely (a] redhat.com> 4387 4388 * include/bits/fs_path.h (__detail::_S_range_begin) 4389 (__detail::_S_range_end): Remove unintentional static specifiers. 4390 * include/experimental/bits/fs_path.h (__detail::_S_range_begin) 4391 (__detail::_S_range_end): Likewise. 4392 4393 2020-05-23 Jonathan Wakely <jwakely (a] redhat.com> 4394 4395 Backport from mainline 4396 2020-05-23 Jonathan Wakely <jwakely (a] redhat.com> 4397 4398 PR libstdc++/95289 4399 * include/debug/helper_functions.h (__get_distance): Only declare 4400 as a constexpr function for C++14 and up. 4401 * testsuite/25_algorithms/copy/debug/95289.cc: New test. 4402 4403 2020-05-21 Jonathan Wakely <jwakely (a] redhat.com> 4404 4405 Backport from mainline 4406 2020-05-21 Jonathan Wakely <jwakely (a] redhat.com> 4407 4408 * include/experimental/executor (use_future_t::use_future_t()): Fix 4409 incorrect noexcept-specifier. 4410 * include/experimental/internet (basic_resolver_results): Adjust 4411 whitespace. 4412 * include/experimental/socket (__basic_socket_impl::release): Add 4413 member function. 4414 (basic_socket(io_context&, const endpoint_type&)): Fix argument to 4415 target constructor. 4416 (basic_socket::release(), basic_socket::release(error_code&)): Add 4417 missing member functions. 4418 (basic_socket::is_open()): Add nodiscard attribute. 4419 (basic_socket::close(error_code&)): Pass argument to base function. 4420 (basic_socket_acceptor::release()) 4421 (basic_socket_acceptor::release(error_code&)): Add missing member 4422 functions. 4423 (basic_socket_acceptor::is_open()): Add nodiscard attribute. 4424 (basic_socket_streambuf::error()): Add noexcept. 4425 (basic_socket_iostream::error()): Likewise. 4426 * testsuite/experimental/net/socket/basic_socket.cc: New test. 4427 4428 2020-05-21 Jonathan Wakely <jwakely (a] redhat.com> 4429 4430 Backport from mainline 4431 2020-05-21 Jonathan Wakely <jwakely (a] redhat.com> 4432 4433 PR libstdc++/93983 4434 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator): 4435 Reorder constraints to avoid recursion when constructors use 4436 iterator_traits (LWG 3420). 4437 * testsuite/24_iterators/customization_points/lwg3420.cc: New test. 4438 4439 2020-05-12 Jonathan Wakely <jwakely (a] redhat.com> 4440 4441 Backport from mainline 4442 2020-05-04 Jonathan Wakely <jwakely (a] redhat.com> 4443 4444 PR libstdc++/94906 4445 * src/c++17/memory_resource.cc 4446 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift 4447 operands. 4448 4449 Backport from mainline 4450 2020-05-03 Jonathan Wakely <jwakely (a] redhat.com> 4451 4452 PR libstdc++/94933 4453 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types 4454 usable in constant expressions. 4455 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and 4456 non-scalars. 4457 4458 2020-05-07 Jonathan Wakely <jwakely (a] redhat.com> 4459 4460 Backport from mainline 4461 2020-05-01 Jonathan Wakely <jwakely (a] redhat.com> 4462 Patrick Palka <ppalka (a] redhat.com> 4463 4464 PR libstdc++/92894 4465 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove): 4466 Add trait to determine return type and an alias for it. 4467 (ranges::__cust_imove::_IMove::operator()): Use __result instead of 4468 deduced return type. 4469 * testsuite/24_iterators/customization_points/92894.cc: New test. 4470 * testsuite/24_iterators/indirect_callable/92894.cc: New test. 4471 4472 2020-05-07 Release Manager 4473 4474 * GCC 10.1.0 released. 4475 4476 2020-05-07 Eric Botcazou <ebotcazou (a] adacore.com> 4477 4478 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update. 4479 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise. 4480 4481 2020-05-06 H.J. Lu <hongjiu.lu (a] intel.com> 4482 4483 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated. 4484 4485 2020-05-06 Rainer Orth <ro (a] CeBiTec.Uni-Bielefeld.DE> 4486 4487 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate. 4488 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt: 4489 Likewise. 4490 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise. 4491 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt: 4492 Likewise. 4493 4494 2020-05-06 Jonathan Wakely <jwakely (a] redhat.com> 4495 4496 * doc/xml/manual/abi.xml (abi.versioning.history): Document library 4497 versions for GCC 9.[123] and 10.1 releases. 4498 * doc/html/*: Regenerate. 4499 4500 2020-05-06 Jakub Jelinek <jakub (a] redhat.com> 4501 4502 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update. 4503 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update. 4504 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update. 4505 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update. 4506 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update. 4507 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update. 4508 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update. 4509 4510 2020-05-04 Jonathan Wakely <jwakely (a] redhat.com> 4511 4512 * doc/xml/faq.xml: Use working link for SGI STL FAQ. 4513 * doc/html/*: Regenerate. 4514 4515 2020-05-01 Jonathan Wakely <jwakely (a] redhat.com> 4516 4517 Backport from mainline 4518 2020-05-01 Jonathan Wakely <jwakely (a] redhat.com> 4519 4520 PR libstdc++/94901 4521 * include/std/type_traits (__is_complete_or_unbounded): Replace 4522 BADNAME _T with _Tp. 4523 * testsuite/17_intro/badnames.cc: New test. 4524 4525 2020-04-30 Jonathan Wakely <jwakely (a] redhat.com> 4526 4527 PR libstdc++/89510 4528 * include/bits/alloc_traits.h (allocator_traits::_S_construct) 4529 (allocator_traits::_S_destroy) 4530 (allocator_traits<allocator<T>>::construct): Use traits in 4531 noexcept-specifiers. 4532 * include/bits/allocator.h (allocator<void>::construct) 4533 (allocator<void>::destroy): Likewise. 4534 * include/ext/malloc_allocator.h (malloc_allocator::construct) 4535 (malloc_allocator::destroy): Likewise. 4536 * include/ext/new_allocator.h (new_allocator::construct) 4537 (new_allocator::destroy): Likewise. 4538 * testsuite/20_util/allocator/89510.cc: New test. 4539 * testsuite/ext/malloc_allocator/89510.cc: New test. 4540 * testsuite/ext/new_allocator/89510.cc: New test. 4541 4542 2020-04-29 Jonathan Wakely <jwakely (a] redhat.com> 4543 4544 PR libstdc++/94854 4545 * include/bits/basic_string.tcc: Update comment about explicit 4546 instantiations. 4547 4548 2020-04-28 Jonathan Wakely <jwakely (a] redhat.com> 4549 4550 PR libstdc++/91480 4551 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal): 4552 Remove non-standard macro. 4553 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define 4554 to indicate P1032R1 support. 4555 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise. 4556 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise. 4557 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise. 4558 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove. 4559 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view) 4560 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define. 4561 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check 4562 feature test macro. 4563 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise. 4564 * testsuite/21_strings/basic_string_view/operations/copy/char/ 4565 constexpr.cc: Likewise. 4566 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise. 4567 4568 PR libstdc++/94831 4569 * include/bits/alloc_traits.h (_S_construct): Restore placement 4570 new-expression for C++11/14/17 and call std::construct_at directly 4571 for C++20. 4572 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr 4573 function returning void. 4574 * testsuite/20_util/specialized_algorithms/ 4575 uninitialized_value_construct/94831.cc: New test. 4576 * testsuite/23_containers/vector/cons/94831.cc: New test. 4577 4578 2020-04-28 Patrick Palka <ppalka (a] redhat.com> 4579 4580 LWG 3433 subrange::advance(n) has UB when n < 0 4581 * include/std/ranges (subrange::prev): Fix typo. 4582 (subrange::advance): Handle a negative argument as per the proposed 4583 resolution of LWG 3433. 4584 * testsuite/std/ranges/subrange/lwg3433.cc: New test. 4585 4586 2020-04-28 Jonathan Wakely <jwakely (a] redhat.com> 4587 Iain Sandoe <iain (a] sandoe.co.uk> 4588 4589 PR c++/94759 4590 * include/std/coroutine: Implement handing for non- 4591 class coroutine return types. 4592 4593 2020-04-24 Jonathan Wakely <jwakely (a] redhat.com> 4594 4595 * include/experimental/executor (service_already_exists): Make default 4596 constructor public (LWG 3414). 4597 * testsuite/experimental/net/execution_context/make_service.cc: Check 4598 the service_already_exists can be default constructed. 4599 4600 2020-04-24 Kamlesh Kumar <kamleshbhalui (a] gmail.com> 4601 Jonathan Wakely <jwakely (a] redhat.com> 4602 4603 PR libstdc++/90415 4604 PR libstdc++/92156 4605 * include/std/any (any): Rename template parameters for consistency 4606 with the standard. 4607 (any::_Decay): Rename to _Decay_if_not_any. 4608 (any::any(T&&):: Remove is_constructible from constraints. Remove 4609 non-standard overload. 4610 (any::any(in_place_type_t<T>, Args&&...)) 4611 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...)) 4612 (any::emplace(Args&&...)) 4613 (any::emplace(initializer_list<U>, Args&&...)): 4614 Use decay_t instead of _Decay. 4615 * testsuite/20_util/any/cons/90415.cc: New test. 4616 * testsuite/20_util/any/cons/92156.cc: New Test. 4617 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives 4618 more robust. 4619 * testsuite/20_util/any/modifiers/92156.cc: New test. 4620 4621 2020-04-23 Jonathan Wakely <jwakely (a] redhat.com> 4622 4623 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table. 4624 * doc/html/*: Regenerate. 4625 4626 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert 4627 value for C++17 to 201803L because P0858R0 is supported for C++17. 4628 * include/std/version (__cpp_lib_array_constexpr): Likewise. 4629 * testsuite/23_containers/array/element_access/constexpr_c++17.cc: 4630 Check for value corresponding to P0031R0 features being tested. 4631 * testsuite/23_containers/array/requirements/constexpr_iter.cc: 4632 Check for value corresponding to P0858R0 features being tested. 4633 4634 * include/std/version (__cpp_lib_three_way_comparison): Define for 4635 freestanding builds. 4636 4637 2020-04-23 Thomas Rodgers <rodgert (a] appliantology.com> 4638 4639 * include/experimental/net/executor (system_context): Mark 4640 system_context::system_context() = delete. 4641 * testsuite/experimental/net/executor/1.cc: Add new 4642 test to check system_context is not default constructible. 4643 4644 2020-04-23 Iain Sandoe <iain (a] sandoe.co.uk> 4645 4646 * include/std/coroutine: Update the inline namespace to __n4861. 4647 Add the __cpp_lib_coroutine define, set to 201902L. 4648 * include/std/version: Add __cpp_lib_coroutine, set to 201902L. 4649 4650 2020-04-22 Jonathan Wakely <jwakely (a] redhat.com> 4651 4652 * include/std/execution (__cpp_lib_execution): Define to indicate 4653 support for P0024R2 and P1001R2. 4654 * include/std/version (__cpp_lib_execution): Define. 4655 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro 4656 defined by <algorithm>, move other tests to new tests ... 4657 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test. 4658 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test. 4659 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test. 4660 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test. 4661 4662 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define 4663 different values for C++17 and C++20, to indicate different feature 4664 sets. Update value for C++20 to indicate P1032R1 support. 4665 * include/std/version (__cpp_lib_array_constexpr): Likewise. 4666 * testsuite/23_containers/array/comparison_operators/constexpr.cc: 4667 Check feature test macro. 4668 * testsuite/23_containers/array/element_access/constexpr_c++17.cc: 4669 New test. 4670 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check 4671 feature test macro. 4672 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test 4673 in C++17 mode and check feature test macro. 4674 4675 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define 4676 here. 4677 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be 4678 defined by <utility>. 4679 4680 * include/std/functional (__cpp_lib_concepts): Update macro value to 4681 indicate P1964R2 support. 4682 * include/std/version (__cpp_lib_concepts): Likewise. 4683 * testsuite/std/concepts/1.cc: Adjust expected value. 4684 * testsuite/std/concepts/2.cc: Likewise. 4685 4686 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to 4687 __cpp_lib_constexpr_functional. 4688 * include/std/version (__cpp_lib_constexpr_invoke): Likewise. 4689 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust. 4690 4691 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to 4692 indicate P1006R1 support. 4693 (__cpp_lib_to_address): Define to indicate P0653R2 support. 4694 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate 4695 P1227R2 support. 4696 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate 4697 P0769R2 support. 4698 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate 4699 P0020R6 support. 4700 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate 4701 P1007R3 support. 4702 * include/std/memory_resource (__cpp_lib_polymorphic_allocator): 4703 Define to indicate P0339R6 support. 4704 * include/std/string_view (__cpp_lib_starts_ends_with): Define to 4705 indicate P0457R2 support. 4706 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define 4707 to indicate P0758R1 support. 4708 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support. 4709 (__cpp_lib_type_identity): Define to indicate P0887R1 support. 4710 * include/std/version (__cpp_lib_atomic_float) 4711 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref) 4712 (__cpp_lib_type_identity, __cpp_lib_assume_aligned) 4713 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator) 4714 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with) 4715 (__cpp_lib_to_address): Define. 4716 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number. 4717 4718 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old 4719 macro. 4720 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion): 4721 Likewise. 4722 * include/std/version (__cpp_lib_map_insertion) 4723 (__cpp_lib_unordered_map_insertion): Remove. 4724 4725 * include/std/condition_variable (__cpp_lib_jthread): Remove 4726 redundant definition. 4727 * include/std/stop_token (__cpp_lib_jthread): Update macro value to 4728 indicate P1869R1 support. 4729 * include/std/version (__cpp_lib_jthread): Update value. 4730 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check 4731 for updated macro value. 4732 * testsuite/30_threads/condition_variable_any/stop_token/2.cc: 4733 Likewise. 4734 * testsuite/30_threads/jthread/1.cc: Likewise. 4735 * testsuite/30_threads/jthread/2.cc: Likewise. 4736 * testsuite/30_threads/stop_token/1.cc: Likewise. 4737 * testsuite/30_threads/stop_token/2.cc: Likewise. 4738 4739 * testsuite/21_strings/basic_string/erasure.cc: Check for 4740 __cpp_lib_erase_if macro. 4741 * testsuite/23_containers/deque/erasure.cc: Add header name to #error 4742 messages. 4743 * testsuite/23_containers/forward_list/erasure.cc: Likewise. 4744 * testsuite/23_containers/list/erasure.cc: Likewise. 4745 * testsuite/23_containers/map/erasure.cc: Likewise. 4746 * testsuite/23_containers/set/erasure.cc: Likewise. 4747 * testsuite/23_containers/unordered_map/erasure.cc: Likewise. 4748 * testsuite/23_containers/unordered_set/erasure.cc: Likewise. 4749 * testsuite/23_containers/vector/erasure.cc: Likewise. 4750 4751 2020-04-21 Jonathan Wakely <jwakely (a] redhat.com> 4752 4753 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way 4754 to define operator<=>. 4755 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test. 4756 4757 * doc/Makefile.am (xml_sources_manual): Add missing XML files. 4758 * doc/Makefile.in: Regenerate. 4759 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead 4760 of "this page". 4761 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections 4762 to the C++11 status table. 4763 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature 4764 proposals with table matching contents of the C++14 standard. 4765 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of 4766 the C++17 standard. 4767 * doc/html/*: Regenerate. 4768 4769 PR c++/94149 4770 * include/std/type_traits (__is_nt_constructible_impl): Add partial 4771 specializations for bounded arrays with non-empty initializers. 4772 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test. 4773 4774 2020-04-20 Thomas Rodgers <trodgers (a] redhat.com> 4775 4776 * testsuite/lib/libstdc++.exp: Add additional_flags= 4777 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when 4778 compiling with a newer Thread Building Blocks. 4779 4780 2020-04-20 Jonathan Wakely <jwakely (a] redhat.com> 4781 4782 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test. 4783 4784 * testsuite/20_util/is_constructible/51185.cc: Make test class a 4785 non-aggregate so that the test verifies the same thing in all -std 4786 modes. 4787 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected 4788 results for some types when paren-init for aggregates is supported. 4789 4790 * include/std/version (__cpp_lib_three_way_comparison): Update value. 4791 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise. 4792 (__detail::__synth3way): Add noexcept-specifier. 4793 4794 * include/bits/stl_map.h (map): Define operator<=> and remove 4795 operator< for C++20. 4796 * include/bits/stl_multimap.h (multimap): Likewise. 4797 * include/bits/stl_multiset.h (multiset): Likewise. 4798 * include/bits/stl_set.h (set): Likewise. 4799 * include/bits/stl_tree.h (_Rb_tree): Likewise. 4800 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant 4801 operator!= for C++20. 4802 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20. 4803 * include/debug/multimap.h (__gnu_debug::multimap): Likewise. 4804 * include/debug/multiset.h (__gnu_debug::multiset): Likewise. 4805 * include/debug/set.h (__gnu_debug::set): Likewise. 4806 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test. 4807 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test. 4808 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test. 4809 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test. 4810 4811 2020-04-20 Matthias Kretz <kretz (a] kde.org> 4812 4813 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose. 4814 4815 2020-04-19 Jonathan Wakely <jwakely (a] redhat.com> 4816 4817 * include/bits/stl_queue.h (queue): Define operator<=> for C++20. 4818 * include/bits/stl_stack.h (stack): Likewise. 4819 * testsuite/23_containers/queue/cmp_c++20.cc: New test. 4820 * testsuite/23_containers/stack/cmp_c++20.cc: New test. 4821 4822 * include/bits/unordered_map.h (unordered_map, unordered_multimap): 4823 Remove redundant operator!= for C++20. 4824 * include/bits/unordered_set.h (unordered_set, unordered_multiset): 4825 Likewise. 4826 * include/debug/unordered_map (unordered_map, unordered_multimap): 4827 Likewise. 4828 * include/debug/unordered_set (unordered_set, unordered_multiset): 4829 Likewise. 4830 4831 PR other/94629 4832 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix 4833 redundant assignment in constructor. 4834 4835 2020-04-18 Jonathan Wakely <jwakely (a] redhat.com> 4836 4837 * include/std/chrono (duration, time_point): Define operator<=> and 4838 remove redundant operator!= for C++20. 4839 * testsuite/20_util/duration/comparison_operators/three_way.cc: New 4840 test. 4841 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New 4842 test. 4843 4844 * testsuite/util/native_type/native_priority_queue.hpp: Use 4845 allocator_traits to rebind allocator. 4846 4847 2020-04-17 Jonathan Wakely <jwakely (a] redhat.com> 4848 4849 * include/bits/forward_list.h (forward_list): Define operator<=> and 4850 remove redundant comparison operators for C++20. 4851 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise. 4852 * include/bits/stl_deque.h (deque): Likewise. 4853 * include/bits/stl_iterator.h (__normal_iterator): Likewise. 4854 * include/bits/stl_list.h (list): Likewise. 4855 * include/bits/stl_vector.h (vector): Likewise. 4856 * include/debug/deque (__gnu_debug::deque): Likewise. 4857 * include/debug/forward_list (__gnu_debug::forward_list): Likewise. 4858 * include/debug/list (__gnu_debug::list): Likewise. 4859 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator): 4860 Likewise. 4861 * include/debug/vector (__gnu_debug::vector): Likewise. 4862 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define 4863 operator<=> for C++20. 4864 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test. 4865 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test. 4866 * testsuite/23_containers/list/cmp_c++20.cc: New test. 4867 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test. 4868 * testsuite/23_containers/vector/cmp_c++20.cc: New test. 4869 4870 * include/bits/basic_string.h (basic_string): Define operator<=> and 4871 remove redundant comparison operators for C++20. 4872 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits): 4873 Add comparison_category members. 4874 (__detail::__char_traits_cmp_cat): New helper to get comparison 4875 category from char traits class. 4876 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not 4877 define for C++20. 4878 (sub_match): Define operator<=> and remove redundant comparison 4879 operators for C++20. 4880 (match_results): Remove redundant operator!= for C++20. 4881 * include/std/string_view (basic_string_view): Define operator<=> and 4882 remove redundant comparison operators for C++20. 4883 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New 4884 test. 4885 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc: 4886 New test. 4887 * testsuite/21_strings/basic_string_view/operations/copy/char/ 4888 constexpr.cc: Initialize variable. 4889 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/ 4890 constexpr.cc: Likewise. 4891 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add 4892 dg-do directive and remove comments showing incorrect signatures. 4893 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc: 4894 Likewise. 4895 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc: 4896 New test. 4897 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc: 4898 New test. 4899 * testsuite/28_regex/sub_match/compare_c++20.cc: New test. 4900 4901 2020-04-16 Jonathan Wakely <jwakely (a] redhat.com> 4902 4903 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove 4904 name of unused parameter. 4905 4906 2020-04-15 Jonathan Wakely <jwakely (a] redhat.com> 4907 4908 * include/bits/fs_dir.h (file_status): Define operator== for C++20. 4909 (directory_entry): Define operator<=> and remove redundant comparison 4910 operators for C++20. 4911 * include/bits/fs_fwd.h (space_info): Define operator== for C++20. 4912 * include/bits/fs_path.h (path): Define operator<=> and remove 4913 redundant comparison operators for C++20. 4914 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment. 4915 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise. 4916 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise. 4917 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise. 4918 4919 * include/bits/allocator.h (operator!=): Do not define for C++20. 4920 * include/bits/locale_classes.h (operator!=): Likewise. 4921 * include/bits/std_function.h (operator==(nullptr_t, const function&)) 4922 (operator!=(const function&, nullptr_t)) 4923 (operator!=(nullptr_t, const function&)): Likewise. 4924 * include/ext/bitmap_allocator.h (operator!=): Likewise. 4925 * include/ext/debug_allocator.h (operator!=): Likewise. 4926 * include/ext/extptr_allocator.h (operator!=): Likewise. 4927 * include/ext/malloc_allocator.h (operator!=): Likewise. 4928 * include/ext/mt_allocator.h (operator!=): Likewise. 4929 * include/ext/new_allocator.h (operator!=): Likewise. 4930 * include/ext/pool_allocator.h (operator!=): Likewise. 4931 * include/ext/throw_allocator.h (operator!=): Likewise. 4932 * include/std/bitset (bitset::operator!=): Likewise. 4933 * include/std/memory_resource (operator!=): Likewise. 4934 * include/std/scoped_allocator (operator!=): Likewise. 4935 4936 * include/std/typeindex (operator<=>): Define for C++20. 4937 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test. 4938 4939 2020-04-14 Jonathan Wakely <jwakely (a] redhat.com> 4940 4941 * libsupc++/compare (compare_three_way): Fix constraint so that 4942 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with. 4943 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc: 4944 New test. 4945 4946 PR libstdc++/94562 4947 * include/bits/shared_ptr.h (operator<=>): Define for C++20. 4948 * include/bits/shared_ptr_base.h (operator<=>): Likewise. 4949 * include/bits/unique_ptr.h (operator<=>): Add inline specifier. 4950 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test. 4951 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect 4952 std::less<A*> to be used when comparing std::shared_ptr<A> objects in 4953 C++20. 4954 4955 PR libstdc++/94565 4956 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor. 4957 * testsuite/18_support/comparisons/categories/94565.cc: New test. 4958 4959 2020-04-13 Iain Sandoe <iain (a] sandoe.co.uk> 4960 4961 * include/std/coroutine: Update coroutines builtin define, 4962 per n4861. 4963 4964 2020-04-09 Jonathan Wakely <jwakely (a] redhat.com> 4965 4966 * libsupc++/compare (compare_three_way): Fix noexcept-specifier. 4967 (strong_order, weak_order, partial_order): Replace uses of <=> with 4968 compare_three_way function object (LWG 3324). 4969 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add 4970 equality operator so that X satisfies three_way_comparable. 4971 * testsuite/18_support/comparisons/algorithms/strong_order.cc: 4972 Likewise. 4973 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise. 4974 4975 * include/bits/unique_ptr.h (operator<=>): Define for C++20. 4976 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line. 4977 * testsuite/20_util/default_delete/void_neg.cc: Likewise. 4978 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test. 4979 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test. 4980 4981 2020-04-08 Jonathan Wakely <jwakely (a] redhat.com> 4982 4983 * include/bits/slice_array.h (operator==(const slice&, const slice&)): 4984 Define for C++20. 4985 * include/std/complex (operator==(const T&, const complex<T>&)) 4986 (operator!=(const complex<T>&, const complex<T>&)) 4987 (operator!=(const complex<T>&, const T&)) 4988 (operator!=(const T&, const complex<T>&)): Do not declare for C++20. 4989 * testsuite/26_numerics/slice/compare.cc: New test. 4990 4991 * include/std/charconv (to_chars_result, from_chars_result): Add 4992 defaulted equality comparisons for C++20. 4993 * testsuite/20_util/from_chars/compare.cc: New test. 4994 * testsuite/20_util/to_chars/compare.cc: New test. 4995 4996 2020-04-07 Jonathan Wakely <jwakely (a] redhat.com> 4997 4998 PR libstdc++/94520 4999 * include/std/charconv (__integer_to_chars_result_type) 5000 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to 5001 allow use in C++14. 5002 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace 5003 use of std::string_view with std::string. 5004 * testsuite/20_util/from_chars/2.cc: Likewise. 5005 * testsuite/20_util/to_chars/1.cc: Likewise. 5006 * testsuite/20_util/to_chars/2.cc: Likewise. 5007 5008 2020-04-06 Jonathan Wakely <jwakely (a] redhat.com> 5009 5010 PR libstdc++/94498 5011 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it 5012 usable in constant expressions for C++20. 5013 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add 5014 _GLIBCXX20_CONSTEXPR. 5015 (std::char_traits<char>, std::char_traits<wchar_t>) 5016 (std::char_traits<char8_t>): Make move, copy and assign usable in 5017 constant expressions for C++20. 5018 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move 5019 and copy usable in constant expressions for C++20. 5020 * include/std/string_view (basic_string_view::copy): Add 5021 _GLIBCXX20_CONSTEXPR. 5022 * testsuite/21_strings/basic_string_view/operations/copy/char/ 5023 constexpr.cc: New test. 5024 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/ 5025 constexpr.cc: New test. 5026 5027 2020-04-05 Gerald Pfeifer <gerald (a] pfeifer.com> 5028 5029 * doc/xml/manual/appendix_contributing.xml: Refer to Git 5030 documentation instead of Subversion. Switch to https. 5031 * doc/html/manual/appendix_contributing.html: Regenerate. 5032 5033 2020-04-03 Jonathan Wakely <jwakely (a] redhat.com> 5034 5035 PR libstdc++/93960 5036 * include/bits/ptr_traits.h (__to_address): Add special case for debug 5037 iterators, to avoid dereferenceable check. 5038 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number. 5039 * testsuite/20_util/to_address/debug.cc: New test. 5040 5041 2020-04-01 Andrea Corallo <andrea.corallo (a] arm.com> 5042 5043 * testsuite/experimental/net/execution_context/use_service.cc: 5044 Require pthread and gthreads. 5045 5046 2020-04-01 Gerald Pfeifer <gerald (a] pfeifer.com> 5047 5048 * doc/xml/manual/appendix_free.xml: Move "free books" list from 5049 fsf.org to gnu.org. 5050 * doc/html/manual/appendix_free.html: Regenerate. 5051 5052 2020-03-31 Ville Voutilainen <ville.voutilainen (a] gmail.com> 5053 5054 Library-side tests for parenthesized aggregate init 5055 5056 PR c++/92878 5057 PR c++/92947 5058 5059 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New. 5060 * testsuite/20_util/any/assign/92878_92947.cc: Likewise. 5061 * testsuite/20_util/any/cons/92878_92947.cc: Likewise. 5062 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise. 5063 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise. 5064 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise. 5065 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise. 5066 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise. 5067 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc: 5068 Likewise. 5069 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise. 5070 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise. 5071 * testsuite/20_util/variant/92878_92947.cc: Likewise. 5072 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc: 5073 Likewise. 5074 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc: 5075 Likewise. 5076 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc: 5077 Likewise. 5078 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc: 5079 Likewise. 5080 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc: 5081 Likewise. 5082 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc: 5083 Likewise. 5084 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise. 5085 * testsuite/23_containers/queue/92878_92947.cc: Likewise. 5086 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc: 5087 Likewise. 5088 * testsuite/23_containers/stack/92878_92947.cc: Likewise. 5089 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc: 5090 Likewise. 5091 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc: 5092 Likewise. 5093 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc: 5094 Likewise. 5095 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc: 5096 Likewise. 5097 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc: 5098 Likewise. 5099 5100 2020-03-28 Jonathan Wakely <jwakely (a] redhat.com> 5101 5102 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account 5103 for changes due to parenthesized aggregate-initialization in C++20. 5104 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash 5105 with std::chrono::sys_time in C++20. 5106 5107 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause 5108 to constrain C++20 versions of comparison operators. Fix backwards 5109 logic of relational operators. 5110 (move_iterator): Use requires-clause to constrain comparison operators 5111 in C++20. Do not declare non-standard same-type overloads for C++20. 5112 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result 5113 of comparisons and check using greedy_ops type. 5114 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise. 5115 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant 5116 main function from compile-only test. 5117 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise. 5118 5119 2020-03-27 Jonathan Wakely <jwakely (a] redhat.com> 5120 5121 * include/bits/range_cmp.h (__cpp_lib_ranges): Define. 5122 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that 5123 C++20 concepts are required. 5124 * include/bits/stl_iterator_base_types.h: Likewise. 5125 * include/std/concepts: Likewise. 5126 * include/std/version: Likewise. 5127 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test 5128 macro. 5129 5130 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept) 5131 (reverse_iterator::iterator_category): Define for C++20. 5132 (reverse_iterator): Define comparison operators correctly for C++20. 5133 (__normal_iterator): Add constraints to comparison operators for C++20. 5134 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new 5135 overload for input iterators. 5136 (move_iterator): Add constraints to comparison operators for C++20. 5137 Define operator<=> for C++20. 5138 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test. 5139 * testsuite/24_iterators/move_iterator/move_only.cc: New test. 5140 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test. 5141 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test. 5142 5143 * include/bits/iterator_concepts.h (__detail::__decay_copy) 5144 (__detail::__member_begin, __detail::__adl_begin): Move here from 5145 <bits/range_access.h>. 5146 (__detail::__ranges_begin, __detail::__range_iter_t): Define. 5147 * bits/range_access.h (__cust_access::__decay_copy) 5148 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to 5149 <bits/iterator_concepts.h>. 5150 (ranges::iterator_t): Use __detail::__range_iter_t. 5151 * include/bits/stl_iterator.h (back_insert_iterator): Simplify 5152 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members. 5153 (front_insert_iterator): Likewise. 5154 (insert_iterator): Implement changes from P0896R4 for C++20. 5155 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test. 5156 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test. 5157 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust 5158 for inclusion in synopsis_c++20.cc which expects different signatures 5159 for some function templates. 5160 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test. 5161 5162 * include/std/type_traits (__is_array_convertible): Move definition 5163 to immediately after is_convertible. 5164 5165 2020-03-26 Jonathan Wakely <jwakely (a] redhat.com> 5166 5167 * include/std/chrono (chrono::days, chrono::weeks, chrono::years) 5168 (chrono::months, chrono::sys_days, chrono::local_t) 5169 (chrono::local_time, chrono::local_seconds, chrono::local_days): 5170 Define for C++20. 5171 (chrono::time_point): Add missing static assert. 5172 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test. 5173 * testsuite/std/time/clock/file/overview.cc: New test. 5174 * testsuite/std/time/clock/file/members.cc: New test. 5175 * testsuite/std/time/syn_c++20.cc: New test. 5176 5177 2020-03-25 Mike Crowe <mac (a] mcrowe.com> 5178 5179 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New 5180 test. 5181 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New 5182 test. 5183 5184 2020-03-25 Jonathan Wakely <jwakely (a] redhat.com> 5185 5186 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ... 5187 * include/std/chrono (filesystem::__file_clock): Here. 5188 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys): 5189 Define public member functions for C++20. 5190 (is_clock, is_clock_v): Define traits for C++20. 5191 * include/std/condition_variable (condition_variable::wait_until): Add 5192 check for valid clock. 5193 * include/std/future (_State_baseV2::wait_until): Likewise. 5194 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise. 5195 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until): 5196 Likewise. 5197 * include/std/thread (this_thread::sleep_until): Likewise. 5198 * testsuite/30_threads/condition_variable/members/2.cc: Qualify 5199 slow_clock with new namespace. 5200 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New 5201 test. 5202 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc: 5203 New test. 5204 * testsuite/30_threads/future/members/clock_neg.cc: New test. 5205 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc: 5206 Qualify slow_clock with new namespace. 5207 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/ 5208 clock_neg.cc: New test. 5209 * testsuite/30_threads/shared_future/members/clock_neg.cc: New 5210 test. 5211 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test. 5212 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc: 5213 New test. 5214 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify 5215 slow_clock with new namespace. 5216 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise. 5217 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New 5218 test. 5219 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test. 5220 * testsuite/std/time/traits/is_clock.cc: New test. 5221 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test 5222 namespace. 5223 5224 2020-03-21 Jonathan Wakely <jwakely (a] redhat.com> 5225 5226 PR libstdc++/93245 5227 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()): 5228 * testsuite/experimental/filesystem/path/generic/generic_string.cc: 5229 Improve test coverage. 5230 5231 PR libstdc++/94242 5232 * include/bits/fs_path.h (path::_S_str_convert): Replace first 5233 parameter with basic_string_view so that strings with different 5234 allocators can be accepted. 5235 (path::generic_string<C,T,A>()): Use basic_string object that uses the 5236 right allocator type. 5237 * testsuite/27_io/filesystem/path/generic/94242.cc: New test. 5238 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve 5239 test coverage. 5240 5241 2020-03-18 Jonathan Wakely <jwakely (a] redhat.com> 5242 5243 PR libstdc++/94033 5244 * include/std/type_traits (__is_nt_default_constructible_atom): Remove. 5245 (__is_nt_default_constructible_impl): Remove. 5246 (__is_nothrow_default_constructible_impl): Remove. 5247 (__is_nt_constructible_impl): Add bool template parameter. Adjust 5248 partial specializations. 5249 (__is_nothrow_constructible_impl): Replace class template with alias 5250 template. 5251 (is_nothrow_default_constructible): Derive from alias template 5252 __is_nothrow_constructible_impl instead of 5253 __is_nothrow_default_constructible_impl. 5254 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test. 5255 5256 * include/std/stop_token (stop_token::_Stop_state_ref): Define 5257 comparison operators explicitly if the compiler won't synthesize them. 5258 5259 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check 5260 __cpp_lib_concepts before using iter_reference_t. 5261 * include/bits/stream_iterator.h (istream_iterator): Check 5262 __cpp_lib_concepts before using default_sentinel_t. 5263 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise. 5264 5265 PR libstdc++/94203 5266 * include/experimental/executor (executor::executor(Executor)): Call 5267 make_shared directly instead of _M_create. Create _Tgt1 object. 5268 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)): 5269 Call allocate_shared directly instead of _M_create. Create _Tgt2 5270 object. 5271 (executor::target_type): Add cast needed for new _Tgt interface. 5272 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func. 5273 (executor::_Tgt): Define the same interface whether RTTI is enabled or 5274 not. 5275 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use 5276 std::type_info in the interface. 5277 (executor::_Tgt::_M_func): Add data member. 5278 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates. 5279 (executor::_Tgt1::_S_func): Define function to access target without 5280 depending on RTTI. 5281 (executor::_M_create): Remove. 5282 (operator==, operator!=): Simplify comparisons for executor. 5283 * include/experimental/socket (is_error_code_enum<socket_errc>): 5284 Define specialization before use. 5285 * testsuite/experimental/net/executor/1.cc: New test. 5286 5287 2020-03-16 Jonathan Wakely <jwakely (a] redhat.com> 5288 5289 PR libstdc++/94199 5290 * include/experimental/executor (service_already_exists): Add default 5291 constructor. Declare make_service to be a friend. 5292 * testsuite/experimental/net/execution_context/make_service.cc: New 5293 test. 5294 5295 2020-03-12 Jonathan Wakely <jwakely (a] redhat.com> 5296 5297 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass 5298 a null pointer to functions with nonnull(1) attribute. 5299 5300 2020-03-11 Patrick Palka <ppalka (a] redhat.com> 5301 5302 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix, 5303 'address' -> 'std::__addressof'. 5304 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of 5305 a non-forward input_range. 5306 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make 5307 default constructor protected instead of deleted, like with 5308 input_iterator_wrapper. 5309 (test_range::iterator): Add comment explaining that this type is used 5310 only when the underlying wrapper is input_iterator_wrapper or 5311 output_iterator_wrapper. Remove delegating defaulted constructor so 5312 that the inherited default constructor is used instead. 5313 5314 LWG 3286 ranges::size is not required to be valid after a call to 5315 ranges::begin on an input range 5316 * include/std/ranges (subrange::subrange): Split single-argument 5317 constructor into two, one constrained by _S_store_size and another by 5318 !_S_store_size. 5319 (take_view::begin): Call size() before calling ranges::begin(_M_base). 5320 * testsuite/std/ranges/adaptors/lwg3286.cc: New test. 5321 * testsuite/std/ranges/subrange/lwg3286.cc: New test. 5322 5323 2020-03-10 Jonathan Wakely <jwakely (a] redhat.com> 5324 5325 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current 5326 instead of _M_current. 5327 (split_view::_OuterIter::operator++): Likewise. 5328 5329 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove. 5330 (transform_view::_Iterator::operator*): Add noexcept-specifier. 5331 (transform_view::_Iterator::iter_move): Inline __iter_move body here. 5332 (split_view::_OuterIter::__current): Add noexcept. 5333 (split_view::_InnerIter::__iter_swap): Remove. 5334 (split_view::_InnerIter::__iter_move): Remove. 5335 (split_view::_InnerIter::_M_i_current): New accessors. 5336 (split_view::_InnerIter::__at_end): Use _M_i_current(). 5337 (split_view::_InnerIter::operator*): Likewise. 5338 (split_view::_InnerIter::operator++): Likewise. 5339 (iter_move(const _InnerIter&)): Likewise. 5340 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise. 5341 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier 5342 for iter_move and iter_swap on split_view's inner iterator. 5343 5344 PR c++/94117 5345 * include/std/ranges (ranges::transform_view::_Iterator::iter_move): 5346 Change expression in noexcept-specifier to match function body. 5347 5348 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add 5349 comment explaining multiple dg-do directives. 5350 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive 5351 so test is run as well as compiled. 5352 5353 2020-03-09 Jonathan Wakely <jwakely (a] redhat.com> 5354 5355 PR libstdc++/94063 5356 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to 5357 handle concatenations that change the type of the first component. 5358 (path::operator+=(basic_string_view<value_type>)): Likewise. 5359 * testsuite/27_io/filesystem/path/concat/94063.cc: New test. 5360 5361 2020-03-06 Patrick Palka <ppalka (a] redhat.com> 5362 5363 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend 5364 join_view::_Sentinel<!_Const>. 5365 * testsuite/std/ranges/adaptors/join.cc: Augment test. 5366 5367 PR libstdc++/93978 5368 * include/bits/range_access.h (__cust_access::_Empty::operator()): 5369 Declare return type to be bool instead of auto. 5370 * testsuite/std/ranges/adaptors/93978.cc: New test. 5371 5372 2020-03-06 Jonathan Wakely <jwakely (a] redhat.com> 5373 5374 PR libstdc++/94069 5375 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER] 5376 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect 5377 second argument to __glibcxx_rwlock_init. 5378 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test. 5379 5380 PR libstdc++/93244 5381 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust 5382 test to not fail due to PR 94063. 5383 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise. 5384 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise. 5385 5386 2020-03-06 Andreas Krebbel <krebbel (a] linux.ibm.com> 5387 5388 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it 5389 would match ENOSYS. 5390 5391 2020-03-05 Jonathan Wakely <jwakely (a] redhat.com> 5392 5393 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable. 5394 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo. 5395 * testsuite/experimental/filesystem/operations/copy.cc: Likewise. 5396 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type 5397 for return value, and in comparison. 5398 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise. 5399 5400 PR libstdc++/94051 5401 * include/std/string_view: Include <bits/ostream_insert.h>. 5402 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test. 5403 5404 2020-03-04 Jonathan Wakely <jwakely (a] redhat.com> 5405 5406 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment. 5407 5408 2020-03-04 Patrick Palka <ppalka (a] redhat.com> 5409 5410 PR libstdc++/94017 5411 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine 5412 condition for when to use memset, making sure to additionally check that 5413 the output pointer's value type is a non-volatile byte type. Instead of 5414 requiring that the fill type is a byte type, just require that it's an 5415 integral type. 5416 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc: 5417 New test. 5418 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc: 5419 New test. 5420 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was 5421 blocked by PR 94017. 5422 * testsuite/25_algorithms/fill/94017.cc: New test. 5423 * testsuite/25_algorithms/fill_n/94017.cc: New test. 5424 5425 LWG 3355 The memory algorithms should support move-only input iterators 5426 introduced by P1207 5427 * include/bits/ranges_uninitialized.h 5428 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting 5429 to copy __ifirst, which could be a move-only input iterator. Use 5430 operator- instead of ranges::distance to compute distance from a sized 5431 sentinel. 5432 (__uninitialized_copy_n_fn::operator()): Likewise. 5433 (__uninitialized_move_fn::operator()): Likewise. 5434 (__uninitialized_move_n_fn::operator()): Likewise. 5435 (__uninitialized_destroy_fn::operator()): Use std::move to avoid 5436 attempting to copy __first. 5437 (__uninitialized_destroy_n_fn::operator()): Likewise. 5438 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: 5439 Augment test. 5440 * .../specialized_algorithms/uninitialized_copy/constrained.cc: 5441 Likewise. 5442 * .../specialized_algorithms/uninitialized_move/constrained.cc: 5443 Likewise. 5444 5445 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make 5446 protected instead of private. 5447 (test_sized_range_sized_sent): New. 5448 5449 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy): 5450 New testsuite iterator. 5451 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it. 5452 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise. 5453 5454 * include/bits/ranges_uninitialized.h 5455 (uninitialized_copy_fn::operator()): Pass a reference type as the first 5456 argument to is_nothrow_assignable_v. 5457 (uninitialized_copy_fn::operator()): Likewise. 5458 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result 5459 with the input iterator stripped of its move_iterator. 5460 (uninitialized_move_n_fn::operator()): Likewise. 5461 (uninitialized_fill_fn::operator()): Pass a reference type as the first 5462 argument to is_nothrow_assignable_v. 5463 (uninitialized_fill_n_fn::operator()): Likewise. 5464 5465 2020-03-03 Jonathan Wakely <jwakely (a] redhat.com> 5466 5467 PR libstdc++/94013 5468 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New 5469 traits to control when to use memmove and memcmp optimizations. 5470 (__is_nonvolatile_trivially_copyable): New helper trait. 5471 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not 5472 use memcmp optimization with volatile data. 5473 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable. 5474 (__copy_or_move, __copy_or_move_backward): Use __memcpyable. 5475 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable. 5476 (__copy_move_backward_a2): Likewise. 5477 (__equal_aux1): Use __memcmpable. 5478 (__lexicographical_compare_aux): Do not use memcmp optimization with 5479 volatile data. 5480 * testsuite/25_algorithms/copy/94013.cc: New test. 5481 * testsuite/25_algorithms/copy_backward/94013.cc: New test. 5482 * testsuite/25_algorithms/equal/94013.cc: New test. 5483 * testsuite/25_algorithms/fill/94013.cc: New test. 5484 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test. 5485 * testsuite/25_algorithms/move/94013.cc: New test. 5486 * testsuite/25_algorithms/move_backward/94013.cc: New test. 5487 5488 * include/bits/stl_algobase.h (lexicographical_compare_three_way): 5489 Avoid redundant iterator comparisons (LWG 3410). 5490 5491 2020-03-02 Jonathan Wakely <jwakely (a] redhat.com> 5492 5493 PR libstdc++/93972 5494 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to 5495 differ. 5496 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test. 5497 5498 * include/std/ranges (__detail::__maybe_empty_t): Rename to 5499 __maybe_present_t. 5500 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name. 5501 5502 * include/bits/ranges_algo.h (shift_right): Add 'typename' to 5503 dependent type. 5504 5505 2020-03-01 H.J. Lu <hongjiu.lu (a] intel.com> 5506 5507 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated. 5508 5509 2020-02-29 John David Anglin <danglin (a] gcc.gnu.org> 5510 5511 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*. 5512 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise. 5513 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise. 5514 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise. 5515 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise. 5516 5517 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc: 5518 Add libatomic option. 5519 * testsuite/30_threads/jthread/jthread.cc: Likewise. 5520 5521 2020-02-29 Franois Dumont <fdumont (a] gcc.gnu.org> 5522 5523 * include/bits/stl_algo.h 5524 (__find_if, __count_if, __is_permutation, std::is_permutation): Move... 5525 * include/bits/stl_algobase.h: ...here. 5526 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include. 5527 5528 2020-02-29 John David Anglin <danglin (a] gcc.gnu.org> 5529 5530 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic 5531 option. 5532 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: 5533 Likewise. 5534 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise. 5535 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise. 5536 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise. 5537 * testsuite/30_threads/stop_token/stop_source.cc: Likewise. 5538 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise. 5539 * testsuite/30_threads/stop_token/stop_token.cc: Likewise. 5540 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: 5541 Likewise. 5542 5543 PR libstdc++/92906 5544 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update. 5545 5546 2020-02-28 Patrick Palka <ppalka (a] redhat.com> 5547 5548 PR libstdc++/93972 5549 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()): 5550 Fix condition for when to use memcmp, making it consistent with the 5551 corresponding condition used in std::lexicographical_compare. 5552 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test. 5553 5554 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for 5555 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to 5556 existing signatures for C++2a. 5557 5558 2020-02-28 Jonathan Wakely <jwakely (a] redhat.com> 5559 5560 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run 5561 test instead of just compiling it. 5562 5563 2020-02-28 Patrick Palka <ppalka (a] redhat.com> 5564 5565 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false 5566 whenever the underlying range models common_range. 5567 5568 * include/std/ranges (__detail::_CachedPosition): New struct. 5569 (views::filter_view::_S_needs_cached_begin): New member variable. 5570 (views::filter_view::_M_cached_begin): New member variable. 5571 (views::filter_view::begin): Use _M_cached_begin to cache its 5572 result. 5573 (views::drop_view::_S_needs_cached_begin): New static member variable. 5574 (views::drop_view::_M_cached_begin): New member variable. 5575 (views::drop_view::begin): Use _M_cached_begin to cache its result 5576 when _S_needs_cached_begin. 5577 (views::drop_while_view::_M_cached_begin): New member variable. 5578 (views::drop_while_view::begin): Use _M_cached_begin to cache its 5579 result. 5580 (views::reverse_view::_S_needs_cached_begin): New static member 5581 variable. 5582 (views::reverse_view::_M_cached_begin): New member variable. 5583 (views::reverse_view::begin): Use _M_cached_begin to cache its result 5584 when _S_needs_cached_begin. 5585 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that 5586 drop_view::begin caches its result. 5587 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check 5588 that drop_while_view::begin caches its result. 5589 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that 5590 filter_view::begin caches its result. 5591 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that 5592 reverse_view::begin caches its result. 5593 5594 2020-02-28 Jonathan Wakely <jwakely (a] redhat.com> 5595 5596 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for 5597 filesystems that silently truncate timestamps. 5598 * testsuite/experimental/filesystem/operations/last_write_time.cc: 5599 Likewise. 5600 5601 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable 5602 -Wstringop-overflow warnings. 5603 5604 2020-02-27 Jonathan Wakely <jwakely (a] redhat.com> 5605 5606 * testsuite/lib/libstdc++.exp (v3_target_compile): Add 5607 -fdiagnostics-urls=never to options. 5608 5609 2020-02-27 Patrick Palka <ppalka (a] redhat.com> 5610 5611 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend 5612 _Iterator<!_Const>. 5613 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>. 5614 (take_view::_Sentinel<_Const>): Likewise. 5615 (take_while_view::_Sentinel<_Const>): Likewise. 5616 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>. 5617 * testsuite/std/ranges/adaptors/split.cc: Augment test. 5618 * testsuite/std/ranges/adaptors/take.cc: Augment test. 5619 * testsuite/std/ranges/adaptors/take_while.cc: Augment test. 5620 * testsuite/std/ranges/adaptors/transform.cc: Augment test. 5621 5622 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the 5623 base() of a vector<>::iterator is a pointer. 5624 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise. 5625 * testsuite/25_algorithms/move/constrained.cc: Likewise. 5626 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise. 5627 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data() 5628 instead of &foo[0]. 5629 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise. 5630 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise. 5631 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise. 5632 * testsuite/25_algorithms/sort/constrained.cc: Likewise. 5633 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise. 5634 5635 2020-02-27 Jonathan Wakely <jwakely (a] redhat.com> 5636 5637 * include/debug/array (operator<=>): Define for C++20. 5638 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc: 5639 Adjust dg-error line numbers. 5640 * testsuite/23_containers/array/tuple_interface/ 5641 tuple_element_debug_neg.cc: Likewise. 5642 5643 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before 5644 defining _GLIBCXX_ASSERTIONS. 5645 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise. 5646 * testsuite/23_containers/span/first_assert_neg.cc: Likewise. 5647 * testsuite/23_containers/span/front_assert_neg.cc: Likewise. 5648 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise. 5649 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise. 5650 * testsuite/23_containers/span/last_assert_neg.cc: Likewise. 5651 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise. 5652 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise. 5653 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise. 5654 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise. 5655 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise. 5656 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise. 5657 5658 * include/debug/string (__gnu_debug::basic_string::insert): Fix for 5659 C++98 where the member function of the base class returns void. 5660 5661 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add 5662 equality comparisons that support value-initialized iterators. 5663 5664 * include/bits/boost_concept_check.h (__function_requires): Add 5665 _GLIBCXX14_CONSTEXPR. 5666 * testsuite/25_algorithms/min/concept_checks.cc: New test. 5667 5668 2020-02-26 Patrick Palka <ppalka (a] redhat.com> 5669 5670 PR libstdc++/93936 5671 * include/std/ranges (split_view::_InnerIter::operator==): Compare 5672 the operands' _M_i rather than their _M_i.current(). 5673 * testsuite/std/ranges/adaptors/split.cc: Augment test. 5674 5675 P1645R1 constexpr for <numeric> algorithms 5676 * include/bits/stl_numeric.h (iota, accumulate, inner_product, 5677 partial_sum, adjacent_difference): Make conditionally constexpr for 5678 C++20. 5679 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature 5680 test macro. 5681 (reduce, transform_reduce, exclusive_scan, inclusive_scan, 5682 transform_exclusive_scan, transform_inclusive_scan): Make conditionally 5683 constexpr for C++20. 5684 * include/std/version (__cpp_lib_constexpr_numeric): Define. 5685 * testsuite/26_numerics/accumulate/constexpr.cc: New test. 5686 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise. 5687 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise. 5688 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise. 5689 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise. 5690 * testsuite/26_numerics/iota/constexpr.cc: Likewise. 5691 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise. 5692 * testsuite/26_numerics/reduce/constexpr.cc: Likewise. 5693 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise. 5694 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise. 5695 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise. 5696 5697 2020-02-26 Jonathan Wakely <jwakely (a] redhat.com> 5698 5699 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare 5700 variables in smaller scope and avoid calling ranges::distance when we 5701 know they are pointers. Remove statically-unreachable use of 5702 __builtin_unreachable(). 5703 * include/bits/stl_algobase.h (__lexicographical_compare::__lc): 5704 Define inline. 5705 5706 * include/std/ranges (__detail::__maybe_empty_t): Define new helper 5707 alias. 5708 (__detail::__maybe_const_t): Likewise. 5709 (__adaptor::_RangeAdaptor): Use __maybe_empty_t. 5710 (transform_view, take_view, take_while_view, elements_view): Use 5711 __maybe_const_t. 5712 (join_view, split_view): Use both. 5713 5714 2020-02-25 Patrick Palka <ppalka (a] redhat.com> 5715 5716 LWG 3397 basic_istream_view::iterator should not provide 5717 iterator_category 5718 * include/std/ranges (basic_istream_view:_Iterator::iterator_category): 5719 Rename to ... 5720 (basic_istream_view:_Iterator::iterator_concept): ... this. 5721 * testsuite/std/ranges/istream_view.cc: Augment test. 5722 5723 LWG 3325 Constrain return type of transformation function for 5724 transform_view 5725 * include/std/ranges (transform_view): Constrain the return type of the 5726 transformation function as per LWG 3325. 5727 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test. 5728 5729 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained 5730 * include/std/ranges (join_view::_Iterator::operator--): Require that 5731 range_reference_t<_Base> models common_range. 5732 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test. 5733 5734 LWG 3301 transform_view::_Iterator has incorrect iterator_category 5735 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust 5736 determination of iterator_category as per LWG 3301. 5737 * testsuite/std/ranges/adaptors/transform.cc: Augment test. 5738 5739 LWG 3292 iota_view is under-constrained 5740 * include/std/ranges (iota_view): Require that _Winc models semiregular 5741 as per LWG 3292. 5742 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test. 5743 5744 2020-02-25 Jonathan Wakely <jwakely (a] redhat.com> 5745 5746 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove 5747 during constant evaluation. Call __builtin_memmove directly instead of 5748 __memmove. 5749 (__copy_or_move_backward): Likewise. 5750 * include/bits/stl_algobase.h (__memmove): Remove. 5751 (__copy_move<M, true, random_access_iterator_tag>::__copy_m) 5752 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m): 5753 Use __builtin_memmove directly instead of __memmove. 5754 (__copy_move_a2): Do not use memmove during constant evaluation. 5755 (__copy_move_backward_a2): Use _IsMove constant to select correct 5756 __copy_move_backward specialization. 5757 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies 5758 begin turned into moves during constant evaluation. 5759 5760 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of 5761 previous commit. 5762 5763 PR libstdc++/93872 5764 * include/bits/stl_algobase.h (__memmove): Cast away const before 5765 doing move assignment. 5766 * testsuite/25_algorithms/move/93872.cc: New test. 5767 * testsuite/25_algorithms/move_backward/93872.cc: New test. 5768 5769 2020-02-24 Patrick Palka <ppalka (a] redhat.com> 5770 5771 PR libstdc++/93884 5772 * include/bits/ranges_algobase.h (__copy_or_move, 5773 __copy_or_move_backward): Don't inspect the iter_value_t of the output 5774 iterator, instead inspect its iterator_traits directly. 5775 * include/bits/stl_iterator.h (back_insert_iterator::container): 5776 Conditionally initialize. 5777 (back_insert_iterator::difference_type): Conditionally define. 5778 (back_insert_iterator::back_insert_iterator): Conditionally define this 5779 default constructor. 5780 (front_insert_iterator::container): Conditionally initialize. 5781 (front_insert_iterator::difference_type): Conditionally define. 5782 (front_insert_iterator::front_insert_iterator): Conditionally define 5783 this default constructor. 5784 * 24_iterators/back_insert_iterator/pr93884.cc: New test. 5785 * 24_iterators/front_insert_iterator/pr93884.cc: New test. 5786 5787 P0769R2 Add shift to <algorithm> 5788 * include/bits/ranges_algo.h (shift_left, shift_right): New. 5789 * testsuite/25_algorithms/shift_left/1.cc: New test. 5790 * testsuite/25_algorithms/shift_right/1.cc: New test. 5791 5792 2020-02-24 Jonathan Wakely <jwakely (a] redhat.com> 5793 5794 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)): 5795 Make noexcept-specifier conditional. 5796 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check 5797 noexcept-specifier. 5798 5799 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)): 5800 Add constructor. 5801 (operator==(istream_iterator, default_sentinel_t)): Add operator. 5802 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20. 5803 * include/bits/streambuf_iterator.h 5804 (istreambuf_iterator(default_sentinel_t)): Add constructor. 5805 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator. 5806 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: 5807 New test. 5808 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test. 5809 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc: 5810 New test. 5811 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test. 5812 5813 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove. 5814 (ranges::enable_view): Simplify (LWG 3326). 5815 * include/bits/range_access.h (ranges::enable_view): Declare. 5816 * include/bits/regex.h (__enable_view_impl): Remove partial 5817 specialization. 5818 * include/bits/stl_multiset.h (__enable_view_impl): Likewise. 5819 * include/bits/stl_set.h (__enable_view_impl): Likewise. 5820 * include/bits/unordered_set.h (__enable_view_impl): Likewise. 5821 * include/debug/multiset.h (__enable_view_impl): Likewise. 5822 * include/debug/set.h (__enable_view_impl): Likewise. 5823 * include/debug/unordered_set (__enable_view_impl): Likewise. 5824 * include/experimental/string_view (ranges::enable_view): Define 5825 partial specialization. 5826 * include/std/span (ranges::enable_view): Likewise. 5827 * include/std/string_view (ranges::enable_view): Likewise. 5828 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept. 5829 5830 2020-02-21 Jonathan Wakely <jwakely (a] redhat.com> 5831 5832 * include/std/optional (operator<=>(optional<T>, optional<U>)) 5833 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)): 5834 Define for C++20. 5835 * include/std/tuple (__tuple_cmp): New helper function for <=>. 5836 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20. 5837 * include/std/variant (operator<=>(variant<T...>, variant<T...>)) 5838 (operator<=>(monostate, monostate)): Define for C++20. 5839 * testsuite/20_util/optional/relops/three_way.cc: New test. 5840 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test. 5841 * testsuite/20_util/variant/89851.cc: Move to ... 5842 * testsuite/20_util/variant/relops/89851.cc: ... here. 5843 * testsuite/20_util/variant/90008.cc: Move to ... 5844 * testsuite/20_util/variant/relops/90008.cc: ... here. 5845 * testsuite/20_util/variant/relops/three_way.cc: New test. 5846 5847 2020-02-20 Patrick Palka <ppalka (a] redhat.com> 5848 5849 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility 5850 function. 5851 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use 5852 __maybe_refwrap to capture lvalue references by reference, and then use 5853 unwrap_reference_t to forward the by-reference captures as references. 5854 * testsuite/std/ranges/adaptors/split.cc: Augment test. 5855 * testsuite/std/ranges/adaptors/split_neg.cc: New test. 5856 5857 * include/std/ranges (iota_view): Forward declare _Sentinel. 5858 (iota_view::_Iterator): Befriend _Sentinel. 5859 (iota_view::_Sentinel::_M_equal): New member function. 5860 (iota_view::_Sentinel::operator==): Use it. 5861 (views::_Iota::operator()): Forward __f using the correct type. 5862 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota 5863 with integers of different signedness, to appease iota_view's deduction 5864 guide. 5865 * testsuite/std/ranges/iota/iota_view.cc: Augment test. 5866 5867 2020-02-20 Jonathan Wakely <jwakely (a] redhat.com> 5868 5869 * include/bits/range_access.h (ranges::begin): Reject array of 5870 incomplete type. 5871 (ranges::end, ranges::size): Require arrays to be bounded. 5872 (ranges::data): Require lvalue or borrowed_range. 5873 (ranges::iterator_t): Remove constraint. 5874 * testsuite/std/ranges/access/begin.cc: Do not check array of 5875 incomplete type. 5876 * testsuite/std/ranges/access/begin_neg.cc: New test. 5877 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error. 5878 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error. 5879 * testsuite/std/ranges/access/ssize.cc: Do not check array of 5880 incomplete type. 5881 5882 * include/std/system_error (error_category::operator<=>) 5883 (operator<=>(const error_code&, const error_code&)) 5884 (operator<=>(const error_condition&, const error_condition&)): Define 5885 for C++20. 5886 * testsuite/19_diagnostics/error_category/operators/less.cc: New test. 5887 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New 5888 test. 5889 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove 5890 incorrect comment. 5891 * testsuite/19_diagnostics/error_code/operators/less.cc: New test. 5892 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove 5893 incorrect comment. 5894 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test. 5895 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove 5896 incorrect comment. 5897 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test. 5898 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc: 5899 Remove incorrect comment. 5900 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New 5901 test. 5902 5903 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20. 5904 5905 * include/std/thread (thread::id::operator<=>): Define for C++20. 5906 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of 5907 functions in namespace std. 5908 * testsuite/30_threads/thread/id/operators_c++20.cc: New test. 5909 5910 2020-02-19 Patrick Palka <ppalka (a] redhat.com> 5911 5912 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the 5913 null terminator of the underlying string as part of the test_range. 5914 (main): Call test03. 5915 5916 2020-02-19 Jonathan Wakely <jwakely (a] redhat.com> 5917 5918 * include/bits/stl_iterator.h (common_iterator): Add copyable<I> 5919 requirement (LWG 3385). 5920 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust 5921 expected declaration. 5922 5923 * include/std/ranges (take_while_view, drop_view, drop_while_view) 5924 (elements_view:_Iterator): Initialize data members (LWG 3364). 5925 5926 * libsupc++/compare (three_way_comparable): Remove always-false check 5927 that should have been removed with weak_equality (P1959R0). 5928 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360). 5929 5930 * include/std/concepts (__detail::__partially_ordered_with): Move here 5931 from <compare>. 5932 (totally_ordered, totally_ordered_with): Use __partially_ordered_with 5933 to simplify definition (LWG 3331). 5934 * libsupc++/compare (__detail::__partially_ordered_with): Move to 5935 <concepts>. 5936 5937 * include/std/concepts (totally_ordered_with): Remove redundant 5938 requirement (LWG 3329). 5939 5940 * include/std/ranges (__detail::__convertible_to_non_slicing): New 5941 helper concept. 5942 (__detail::__pair_like_convertible_to): Remove. 5943 (__detail::__pair_like_convertible_from): Add requirements for 5944 non-slicing conversions. 5945 (subrange): Constrain constructors with __convertible_to_non_slicing. 5946 Remove constructors from pair-like types. Add new deduction guide. 5947 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test. 5948 5949 * include/bits/iterator_concepts.h (iter_move): Add declaration to 5950 prevent unqualified lookup finding a suitable declaration (LWG 3247). 5951 5952 * include/std/memory_resource (polymorphic_allocator::allocate) 5953 (polymorphic_allocator::allocate_object): Change type of exception to 5954 bad_array_new_length (LWG 3237). 5955 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test. 5956 5957 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348). 5958 * include/std/version (__cpp_lib_unwrap_ref): Likewise. 5959 * testsuite/20_util/unwrap_reference/1.cc: Check macro. 5960 * testsuite/20_util/unwrap_reference/3.cc: New test. 5961 5962 * include/std/numeric (midpoint(T8, T*)): Do not check for complete 5963 type during overload resolution, use static assert instead (LWG 3200). 5964 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with 5965 incomplete type. 5966 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test. 5967 5968 * include/std/span (span(T (&)[N])): Use non-deduced context to 5969 prevent first parameter from interfering with class template argument 5970 deduction (LWG 3369). 5971 * testsuite/23_containers/span/deduction.cc: Add missing 'const'. 5972 * testsuite/23_containers/span/lwg3255.cc: Check for construction from 5973 rvalues. 5974 5975 * include/std/span (span::const_iterator, span::const_reverse_iterator) 5976 (span::cbegin(), span::cend(), span::crbegin(), span::crend()): 5977 Remove (LWG 3320). 5978 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin 5979 and cend. 5980 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: 5981 Likewise. 5982 * testsuite/20_util/specialized_algorithms/uninitialized_copy/ 5983 constrained.cc: Likewise. 5984 * testsuite/20_util/specialized_algorithms/ 5985 uninitialized_default_construct/constrained.cc: Likewise. 5986 * testsuite/20_util/specialized_algorithms/uninitialized_fill/ 5987 constrained.cc: Likewise. 5988 * testsuite/20_util/specialized_algorithms/uninitialized_move/ 5989 constrained.cc: Likewise. 5990 * testsuite/20_util/specialized_algorithms/ 5991 uninitialized_value_construct/constrained.cc: Likewise. 5992 5993 * include/bits/range_access.h (range_size_t): Define alias template. 5994 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335). 5995 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name. 5996 5997 * include/std/ranges (filter_view, transform_view, take_view) 5998 (join_view, split_view, reverse_view): Remove commented-out converting 5999 constructors (LWG 3280). 6000 6001 * include/std/memory (uninitialized_construct_using_allocator): Use 6002 std::construct_at (LWG 3321). 6003 6004 * include/std/memory_resource (polymorphic_allocator::allocate_bytes) 6005 (polymorphic_allocator::allocate_object) 6006 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304). 6007 6008 LWG 3379. "safe" in several library names is misleading 6009 * include/bits/range_access.h (enable_safe_range): Rename to 6010 enable_borrowed_range. 6011 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range. 6012 (safe_range): Rename to borrowed_range. 6013 * include/bits/ranges_algo.h: Adjust to use new names. 6014 * include/bits/ranges_algobase.h: Likewise. 6015 * include/bits/ranges_uninitialized.h: Likewise. 6016 * include/std/ranges: Likewise. 6017 (safe_iterator_t): Rename to borrowed_iterator_t. 6018 (safe_subrange_t): Rename to borrowed_subrange_t. 6019 * include/std/span: Adjust to use new names. 6020 * include/std/string_view: Likewise. 6021 * include/experimental/string_view: Likewise. 6022 * testsuite/std/ranges/access/begin.cc: Likewise. 6023 * testsuite/std/ranges/access/cbegin.cc: Likewise. 6024 * testsuite/std/ranges/access/cdata.cc: Likewise. 6025 * testsuite/std/ranges/access/cend.cc: Likewise. 6026 * testsuite/std/ranges/access/crbegin.cc: Likewise. 6027 * testsuite/std/ranges/access/crend.cc: Likewise. 6028 * testsuite/std/ranges/access/data.cc: Likewise. 6029 * testsuite/std/ranges/access/end.cc: Likewise. 6030 * testsuite/std/ranges/access/rbegin.cc: Likewise. 6031 * testsuite/std/ranges/access/rend.cc: Likewise. 6032 * testsuite/std/ranges/safe_range.cc: Likewise. 6033 * testsuite/std/ranges/safe_range_types.cc: Likewise. 6034 * testsuite/util/testsuite_iterators.h: Likewise. 6035 6036 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>) 6037 (tuple_element<1, const subrange<I, S, K>>): Add partial 6038 specializations (LWG 3398). 6039 * testsuite/std/ranges/subrange/tuple_like.cc: New test. 6040 6041 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn) 6042 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn) 6043 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool. 6044 6045 2020-02-18 Patrick Palka <ppalka (a] redhat.com> 6046 6047 P1983R0 Wording for GB301, US296, US292, US291, and US283 6048 * include/std/ranges (filter_view::pred): New member function. 6049 (join_view::_Iterator::_Iterator): Remove now-redundant comment since 6050 P1983R0 fixes the highlighted issue in the same way. 6051 (join_view::_Iterator<_Const>): Add friend 6052 join_view::_Iterator<!_Const>. 6053 (join_view::_M_inner): Remove mutable specifier, effectively reverting 6054 the proposed wording changes of P3278. 6055 (join_view::begin): Refine the condition for when to return a const 6056 iterator. 6057 (split_view::_OuterIter::_OuterIter): Adjust constraints. 6058 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred 6059 exists and works. 6060 6061 2020-02-18 Jonathan Wakely <jwakely (a] redhat.com> 6062 6063 PR libstdc++/93818 6064 * include/std/ranges (_RangeAdaptor): Add deduction guide. 6065 (filter_view::_Iterator): Add alias _Vp_iter and use in place of 6066 iterator_t<_Vp>. 6067 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'. 6068 (transform_view::_Iterator): Add alias _Base_iter and use in place of 6069 iterator_t<_Base>. 6070 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'. 6071 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases. 6072 (join_view::_Iterator::_S_iter_cat()): Add 'typename'. 6073 (split_view::_InnerIter::_S_iter_cat()): Likewise. 6074 6075 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid 6076 assumption that long is wider than int. 6077 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise. 6078 * testsuite/20_util/integer_comparisons/less.cc: Likewise. 6079 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise. 6080 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise. 6081 6082 P1976R2 Fixed-size span construction from dynamic range 6083 * include/std/span (__cpp_lib_span): Update value. 6084 (span(It, size_type), span(It, End)): Make conditionally explicit. Add 6085 assertion. 6086 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax 6087 constraints. 6088 (span::first<Count>(), span::last<Count>()): Use explicit type in 6089 return statement. 6090 (as_bytes, as_writable_bytes): Likewise. 6091 * include/std/version (__cpp_lib_span): Update value. 6092 * testsuite/23_containers/span/1.cc: Check new value. 6093 * testsuite/23_containers/span/2.cc: Check new value. 6094 * testsuite/23_containers/span/explicit.cc: New test. 6095 6096 * include/std/span (span::__is_compatible_array): Simplify alias 6097 template by using requires-clause. 6098 (span::__is_compatible_ref): New alias template for constraining 6099 constructors. 6100 (span::__is_compatible_iterator, span::__is_compatible_range): Remove. 6101 (span(It, size_type), span(It, End)): Use __is_compatible_ref. 6102 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove 6103 redundant parentheses. 6104 (span(R&&)): Add missing constraints. 6105 6106 * include/std/span (span): Reorder members and rename template 6107 parameters to match declarations in the C++2a working paper. 6108 6109 P2116R0 Remove tuple-like protocol support from fixed-extent span 6110 * include/std/span (get, tuple_size, tuple_element): Remove. 6111 * testsuite/23_containers/span/everything.cc: Remove checks for 6112 tuple-like API. 6113 * testsuite/23_containers/span/get_neg.cc: Remove. 6114 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove. 6115 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove. 6116 * testsuite/23_containers/span/tuple_size_neg.cc: Remove. 6117 6118 2020-02-17 Patrick Palka <ppalka (a] redhat.com> 6119 6120 P2106R0 Alternative wording for GB315 and GB316 6121 * include/bits/ranges_algo.h (in_fun_result): New. 6122 (for_each_result, for_each_n_result): Change into an alias of 6123 in_fun_result. 6124 (in_in_result): New. 6125 (mismatch_result): Change into an alias of in_in_result. 6126 (copy_if_result): Change into an alias of in_out_result. 6127 (swap_ranges_result): Change into an alias of in_in_result. 6128 (unary_transform_result): Change into an alias of in_out_result. 6129 (in_in_out_result): New. 6130 (binary_transform_result): Change into an alias of in_in_out_result. 6131 (replace_copy_result, replace_copy_if_result, remove_copy_if_result, 6132 remove_copy_result, unique_copy_result, reverse_copy_result, 6133 rotate_copy_result, partial_sort_copy_result): Change into an alias of 6134 in_out_result. 6135 (in_out_out_result): New. 6136 (partition_copy_result, merge_result): Change into an alias of 6137 in_out_out_result. 6138 (set_union_result, set_intersection_result): Change into an alias of 6139 in_in_out_result. 6140 (set_difference_result): Change into an alias of in_out_result. 6141 (set_symmetric_difference): Change into an alias of in_in_out_result. 6142 (min_max_result): New. 6143 (minmax_result, minmax_element_result): Change into an alias of 6144 min_max_result. 6145 (in_found_result): New. 6146 (next_permutation_result, prev_permutation_result): Change into an alias 6147 of in_found_result. 6148 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()): 6149 Adjust following changes to next_permutation_result and 6150 prev_permutation_result. 6151 * include/bits/ranges_algobase.h (in_out_result): New. 6152 (copy_result, move_result, move_backward_result, copy_backward_result, 6153 copy_n_result): Change into an alias of in_out_result. 6154 * include/bits/ranges_uninitialized.h (uninitialized_copy_result, 6155 uninitialized_copy_n_result, uninitialized_move_result, 6156 uninitialized_move_n_result): Likewise. 6157 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of 6158 structured bindings. 6159 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise. 6160 6161 P1243R4 Rangify new algorithms 6162 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn, 6163 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New. 6164 * testsuite/25_algorithms/clamp/constrained.cc: New test. 6165 * testsuite/25_algorithms/for_each/constrained.cc: Augment test. 6166 * testsuite/25_algorithms/sample/constrained.cc: New test. 6167 6168 2020-02-17 Jonathan Wakely <jwakely (a] redhat.com> 6169 6170 P1964R2 Wording for boolean-testable 6171 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn) 6172 (__adjacent_find_fn): Cast result of predicate to bool. 6173 * include/std/concepts (__boolean): Remove. 6174 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add 6175 new helper concepts. 6176 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with) 6177 (predicate): Use __boolean_testable instead of boolean. 6178 * libsupc++/compare (__detail::__partially_ordered, _Synth3way): 6179 Likewise. 6180 6181 P1970R2 Consistency for size() functions: Add ranges::ssize 6182 * include/bits/range_access.h (_SSize, ssize): Define for C++20. 6183 * testsuite/std/ranges/access/ssize.cc: New test. 6184 6185 P1956R1 On the names of low-level bit manipulation functions 6186 * include/bits/hashtable_policy.h: Update comment. 6187 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename. 6188 (ispow2, ceil2, floor2, log2p1): Likewise. 6189 (__cpp_lib_int_pow2): Add feature test macro. 6190 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1. 6191 * include/std/memory (assume_aligned): Adjust use of ispow2. 6192 * include/std/version (__cpp_lib_int_pow2): Add. 6193 * libsupc++/new_opa.cc: Adjust use of __ispow2. 6194 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1. 6195 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2. 6196 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ... 6197 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here. 6198 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ... 6199 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here. 6200 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ... 6201 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here. 6202 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ... 6203 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here. 6204 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ... 6205 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here. 6206 6207 * include/std/charconv: Add comment. 6208 6209 PR libstdc++/92546 (partial) 6210 * include/bits/random.h (uniform_random_bit_generator): Move definition 6211 to <bits/uniform_int_dist.h>. 6212 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead 6213 of <bits/random.h>. 6214 * include/bits/ranges_algobase.h: Do not include <cmath>. 6215 * include/bits/uniform_int_dist.h (uniform_random_bit_generator): 6216 Move here. 6217 * include/std/ranges: Do not include <limits>. 6218 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno. 6219 6220 PR libstdc++/92546 (partial) 6221 * include/Makefile.am: Add new header. 6222 * include/Makefile.in: Regenerate. 6223 * include/bits/int_limits.h: New header. 6224 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace 6225 numeric_limits with __detail::__int_limits. 6226 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one) 6227 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1): 6228 Likewise. 6229 * include/std/charconv (__to_chars_8, __from_chars_binary) 6230 (__from_chars_alpha_to_num, from_chars): Likewise. 6231 * include/std/memory_resource (polymorphic_allocator::allocate) 6232 (polymorphic_allocator::allocate_object): Likewise. 6233 * include/std/string_view (basic_string_view::_S_compare): Likewise. 6234 * include/std/utility (in_range): Likewise. 6235 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for 6236 extra error about incomplete type __int_limits<bool>. 6237 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>. 6238 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise. 6239 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise. 6240 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise. 6241 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise. 6242 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise. 6243 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise. 6244 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise. 6245 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise. 6246 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise. 6247 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise. 6248 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise. 6249 6250 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update 6251 value for partial_ordering::unordered. 6252 6253 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add 6254 const-qualified expression variations. 6255 * include/std/concepts (copyable): Likewise. 6256 6257 * include/std/type_traits (__is_standard_integer): New helper trait. 6258 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater) 6259 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20. 6260 * include/std/version (__cpp_lib_integer_comparison_functions): Define. 6261 * testsuite/20_util/integer_comparisons/1.cc: New test. 6262 * testsuite/20_util/integer_comparisons/2.cc: New test. 6263 * testsuite/20_util/integer_comparisons/equal.cc: New test. 6264 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test. 6265 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test. 6266 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test. 6267 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test. 6268 * testsuite/20_util/integer_comparisons/in_range.cc: New test. 6269 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test. 6270 * testsuite/20_util/integer_comparisons/less.cc: New test. 6271 * testsuite/20_util/integer_comparisons/less_equal.cc: New test. 6272 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test. 6273 * testsuite/20_util/integer_comparisons/less_neg.cc: New test. 6274 * testsuite/20_util/integer_comparisons/not_equal.cc: New test. 6275 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test. 6276 6277 2020-02-16 Patrick Palka <ppalka (a] redhat.com> 6278 6279 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()): 6280 Move code after an early exit constexpr if to under an else branch. 6281 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise. 6282 6283 2020-02-15 Patrick Palka <ppalka (a] redhat.com> 6284 6285 * include/bits/ranges_algo.h: Adjust whitespace and formatting. 6286 * include/bits/ranges_algobase.h: Likewise. 6287 * include/bits/ranges_uninitialized.h: Likewise. 6288 6289 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of, 6290 binary_search, copy_if, count, count_if, equal_range, find, find_end, 6291 find_first_of, find_if, find_if_not, for_each, generate, generate_n, 6292 includes, inplace_merge, is_heap, is_heap_until, is_partitioned, 6293 is_permutation, is_sorted, is_sorted_until, lexicographical_compare, 6294 lower_bound, make_heap, max, max_element, merge, min, min_element, 6295 minmax, minmax_element, mismatch, next_permutation, none_of, 6296 nth_element, partial_sort, partial_sort_copy, partition, partition_copy, 6297 partition_point, pop_heap, prev_permutation, push_heap, remove, 6298 remove_copy, remove_copy_if, remove_if, replace, replace_copy, 6299 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy, 6300 search, search_n, set_difference, set_intersection, 6301 set_symmetric_difference, set_union, shuffle, sort, sort_heap, 6302 stable_partition, stable_sort, swap_ranges, transform, unique, 6303 unique_copy, upper_bound): Convert into function objects. 6304 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n, 6305 fill, move_backward, copy_backward): Likewise. 6306 * include/bits/ranges_uninitialized.h (uninitialized_default_construct, 6307 uninitialized_default_construct_n, uninitialized_value_construct, 6308 uninitialized_value_construct_n, uninitialized_copy, 6309 uninitialized_copy_n, uninitialized_move, uninitialized_move_n, 6310 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at, 6311 destroy, destroy_n): Likewise. 6312 6313 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ... 6314 (ranges::find_end): ... here. 6315 (ranges::__lexicographical_compare): Fold into ... 6316 (ranges::lexicographical_compare): ... here. 6317 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ... 6318 (ranges::equal): ... here. 6319 6320 2020-02-15 Jonathan Wakely <jwakely (a] redhat.com> 6321 6322 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L. 6323 * include/std/deque: Likewise. 6324 * include/std/forward_list: Likewise. 6325 * include/std/list: Likewise. 6326 * include/std/string: Likewise. 6327 * include/std/vector: Likewise. 6328 * include/std/version: Likewise. 6329 * testsuite/23_containers/deque/erasure.cc: Test for new value. 6330 * testsuite/23_containers/forward_list/erasure.cc: Likewise. 6331 * testsuite/23_containers/list/erasure.cc: Likewise. 6332 * testsuite/23_containers/map/erasure.cc: Likewise. 6333 * testsuite/23_containers/set/erasure.cc: Likewise. 6334 * testsuite/23_containers/unordered_map/erasure.cc: Likewise. 6335 * testsuite/23_containers/unordered_set/erasure.cc: Likewise. 6336 * testsuite/23_containers/vector/erasure.cc: Likewise. 6337 6338 2020-02-15 Jonathan Wakely <jwakely (a] redhat.com> 6339 6340 * include/bits/random.h (uniform_random_bit_generator): Require min() 6341 and max() to be constant expressions and min() to be less than max(). 6342 * testsuite/26_numerics/random/concept.cc: Check additional cases. 6343 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno. 6344 6345 2020-02-13 Patrick Palka <ppalka (a] redhat.com> 6346 6347 * include/Makefile.am: Add <bits/ranges_uninitialized.h>. 6348 * include/Makefile.in: Regenerate. 6349 * include/bits/ranges_uninitialized.h: New header. 6350 * include/std/memory: Include it. 6351 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New 6352 test. 6353 * .../uninitialized_copy/constrained.cc: New test. 6354 * .../uninitialized_default_construct/constrained.cc: New test. 6355 * .../uninitialized_fill/constrained.cc: New test. 6356 * .../uninitialized_move/constrained.cc: New test. 6357 * .../uninitialized_value_construct/constrained.cc: New test. 6358 6359 * include/Makefile.am: Add bits/ranges_algobase.h 6360 * include/Makefile.in: Regenerate. 6361 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor 6362 existing #includes. 6363 (__detail::__is_normal_iterator, __detail::is_reverse_iterator, 6364 __detail::__is_move_iterator, copy_result, move_result, 6365 __equal, equal, copy_result, move_result, move_backward_result, 6366 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy, 6367 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n, 6368 fill): Split out into ... 6369 * bits/range_algobase.h: ... this new header. 6370 6371 2020-02-12 Patrick Palka <ppalka (a] redhat.com> 6372 6373 LWG 3389 and LWG 3390 6374 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when 6375 constructing the move_iterator with __i. 6376 (counted_iterator::counted_iterator): Use std::move when initializing 6377 M_current with __i. 6378 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test. 6379 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test. 6380 6381 2020-02-12 Sandra Loosemore <sandra (a] codesourcery.com> 6382 6383 PR libstdc++/79193 6384 PR libstdc++/88999 6385 6386 * configure: Regenerated. 6387 6388 2020-02-12 Franois Dumont <fdumont (a] gcc.gnu.org> 6389 6390 * include/bits/hashtable.h 6391 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add 6392 missing std namespace qualification to forward call. 6393 6394 2020-02-09 Jonathan Wakely <jwakely (a] redhat.com> 6395 6396 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix 6397 comment. 6398 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise. 6399 6400 * include/std/ranges: Fix non-ASCII characters in comment. 6401 6402 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require 6403 equality comparison to be valid and return bool. 6404 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison. 6405 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check 6406 type with ambiguous conversion to fundamental types. 6407 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise. 6408 6409 2020-02-07 Jonathan Wakely <jwakely (a] redhat.com> 6410 6411 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t): 6412 Use remove_cvref_t. 6413 (readable_traits): Rename to indirectly_readable_traits. 6414 (readable): Rename to indirectly_readable. 6415 (writable): Rename to indirectly_writable. 6416 (__detail::__iter_exchange_move): Do not use remove_reference_t. 6417 (indirectly_swappable): Adjust requires expression parameter types. 6418 expression. 6419 * include/bits/ranges_algo.h (ranges::transform, ranges::replace) 6420 (ranges::replace_if, ranges::generate_n, ranges::generate) 6421 (ranges::remove): Use new name for writable. 6422 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow): 6423 Use new name for readable. 6424 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use 6425 new name for readable_traits. 6426 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise. 6427 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for 6428 new definition of indirectly_readable. 6429 6430 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change 6431 to take parameters of common_iterator, instead of the common_iterator 6432 type itself. Fix argument for __common_iter_has_arrow constraint. 6433 (iterator_traits<common_iterator<I, S>>::pointer): Adjust. 6434 6435 2020-02-07 Jonathan Wakely <jwakely (a] redhat.com> 6436 6437 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body 6438 warning. 6439 (basic_istream_view::_Iterator::operator++()): Add missing return. 6440 6441 2020-02-07 Patrick Palka <ppalka (a] redhat.com> 6442 6443 * include/bits/ranges_algo.h: Remove extraneous &&. 6444 6445 * include/std/ranges (ranges::__detail::__stream_extractable, 6446 ranges::basic_istream_view, ranges::istream_view): Define. 6447 * testsuite/std/ranges/istream_view: New test. 6448 6449 Implement C++20 range adaptors 6450 * include/std/ranges: Include <bits/refwrap.h> and <tuple>. 6451 (subrange::_S_store_size): Mark as const instead of constexpr to 6452 avoid what seems to be a bug in GCC. 6453 (__detail::__box): Give it defaulted copy and move constructors. 6454 (ranges::views::_Single::operator()): Mark constexpr. 6455 (ranges::views::_Iota::operator()): Mark constexpr. 6456 (__detail::Empty): Define. 6457 (ranges::views::__closure::_RangeAdaptor, 6458 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view, 6459 ranges::views::all, ranges::__detail::find_if, 6460 ranges::__detail::find_if_not, ranges::__detail::mismatch, 6461 ranges::detail::min, filter_view, ranges::views::filter, transform_view, 6462 ranges::views::transform, take_view, ranges::views::take, 6463 take_while_view, ranges::views::take_while, drop_view, 6464 ranges::views::drop, join_view, ranges::views::join, 6465 __detail::require_constant, __detail::tiny_range, split_view, 6466 ranges::views::split, ranges::views::_Counted, ranges::views::counted, 6467 common_view, ranges::views::common, reverse_view, 6468 ranges::views::reverse, 6469 ranges::views::__detail::__is_reversible_subrange, 6470 ranges::views::__detail::__is_reverse_view, reverse_view, 6471 ranges::views::reverse, __detail::__has_tuple_element, elements_view, 6472 ranges::views::elements, ranges::views::keys, ranges::views::values): 6473 Define. 6474 (views): Alias for ranges::views. 6475 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>, 6476 tuple_element<1, ranges::subrange>): New partial specializations. 6477 * testsuite/std/ranges/adaptors/all.cc: New test. 6478 * testsuite/std/ranges/adaptors/common.cc: Likewise. 6479 * testsuite/std/ranges/adaptors/counted.cc: Likewise. 6480 * testsuite/std/ranges/adaptors/drop.cc: Likewise. 6481 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise. 6482 * testsuite/std/ranges/adaptors/elements.cc: Likewise. 6483 * testsuite/std/ranges/adaptors/filter.cc: Likewise. 6484 * testsuite/std/ranges/adaptors/join.cc: Likewise. 6485 * testsuite/std/ranges/adaptors/reverse.cc: Likewise. 6486 * testsuite/std/ranges/adaptors/split.cc: Likewise. 6487 * testsuite/std/ranges/adaptors/take.cc: Likewise. 6488 * testsuite/std/ranges/adaptors/take_while.cc: Likewise. 6489 * testsuite/std/ranges/adaptors/transform.cc: Likewise. 6490 6491 2020-02-07 Jonathan Wakely <jwakely (a] redhat.com> 6492 6493 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying 6494 type of enumerations and comparison category types. 6495 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type. 6496 (__cmp_cat::_Ncmp::unordered): Change value to 2. 6497 (partial_ordering::_M_value, weak_ordering::_M_value) 6498 (strong_ordering::_M_value): Change type to __cmp_cat::type. 6499 (partial_ordering::_M_is_ordered): Remove data member. 6500 (partial_ordering): Use second bit of _M_value for unordered. Adjust 6501 comparison operators. 6502 (weak_ordering::operator partial_ordering): Simplify to remove 6503 branches. 6504 (operator<=>(unspecified, weak_ordering)): Likewise. 6505 (strong_ordering::operator partial_ordering): Likewise. 6506 (strong_ordering::operator weak_ordering): Likewise. 6507 (operator<=>(unspecified, strong_ordering)): Likewise. 6508 * testsuite/18_support/comparisons/categories/partialord.cc: New test. 6509 * testsuite/18_support/comparisons/categories/strongord.cc: New test. 6510 * testsuite/18_support/comparisons/categories/weakord.cc: New test. 6511 6512 * include/std/ranges (iota_view::_Iterator): Fix typo in name of 6513 __cpp_lib_three_way_comparison macro and use deduced return type for 6514 operator<=>. 6515 * testsuite/std/ranges/iota/iterator.cc: New test. 6516 6517 2020-02-07 Patrick Palka <ppalka (a] redhat.com> 6518 Jonathan Wakely <jwakely (a] redhat.com> 6519 6520 Implement C++20 constrained algorithms 6521 * include/Makefile.am: Add new header. 6522 * include/Makefile.in: Regenerate. 6523 * include/std/algorithm: Include <bits/ranges_algo.h>. 6524 * include/bits/ranges_algo.h: New file. 6525 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test. 6526 * testsuite/25_algorithms/all_of/constrained.cc: New test. 6527 * testsuite/25_algorithms/any_of/constrained.cc: New test. 6528 * testsuite/25_algorithms/binary_search/constrained.cc: New test. 6529 * testsuite/25_algorithms/copy/constrained.cc: New test. 6530 * testsuite/25_algorithms/copy_backward/constrained.cc: New test. 6531 * testsuite/25_algorithms/copy_if/constrained.cc: New test. 6532 * testsuite/25_algorithms/copy_n/constrained.cc: New test. 6533 * testsuite/25_algorithms/count/constrained.cc: New test. 6534 * testsuite/25_algorithms/count_if/constrained.cc: New test. 6535 * testsuite/25_algorithms/equal/constrained.cc: New test. 6536 * testsuite/25_algorithms/equal_range/constrained.cc: New test. 6537 * testsuite/25_algorithms/fill/constrained.cc: New test. 6538 * testsuite/25_algorithms/fill_n/constrained.cc: New test. 6539 * testsuite/25_algorithms/find/constrained.cc: New test. 6540 * testsuite/25_algorithms/find_end/constrained.cc: New test. 6541 * testsuite/25_algorithms/find_first_of/constrained.cc: New test. 6542 * testsuite/25_algorithms/find_if/constrained.cc: New test. 6543 * testsuite/25_algorithms/find_if_not/constrained.cc: New test. 6544 * testsuite/25_algorithms/for_each/constrained.cc: New test. 6545 * testsuite/25_algorithms/generate/constrained.cc: New test. 6546 * testsuite/25_algorithms/generate_n/constrained.cc: New test. 6547 * testsuite/25_algorithms/heap/constrained.cc: New test. 6548 * testsuite/25_algorithms/includes/constrained.cc: New test. 6549 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test. 6550 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test. 6551 * testsuite/25_algorithms/is_permutation/constrained.cc: New test. 6552 * testsuite/25_algorithms/is_sorted/constrained.cc: New test. 6553 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test. 6554 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New 6555 test. 6556 * testsuite/25_algorithms/lower_bound/constrained.cc: New test. 6557 * testsuite/25_algorithms/max/constrained.cc: New test. 6558 * testsuite/25_algorithms/max_element/constrained.cc: New test. 6559 * testsuite/25_algorithms/merge/constrained.cc: New test. 6560 * testsuite/25_algorithms/min/constrained.cc: New test. 6561 * testsuite/25_algorithms/min_element/constrained.cc: New test. 6562 * testsuite/25_algorithms/minmax/constrained.cc: New test. 6563 * testsuite/25_algorithms/minmax_element/constrained.cc: New test. 6564 * testsuite/25_algorithms/mismatch/constrained.cc: New test. 6565 * testsuite/25_algorithms/move/constrained.cc: New test. 6566 * testsuite/25_algorithms/move_backward/constrained.cc: New test. 6567 * testsuite/25_algorithms/next_permutation/constrained.cc: New test. 6568 * testsuite/25_algorithms/none_of/constrained.cc: New test. 6569 * testsuite/25_algorithms/nth_element/constrained.cc: New test. 6570 * testsuite/25_algorithms/partial_sort/constrained.cc: New test. 6571 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test. 6572 * testsuite/25_algorithms/partition/constrained.cc: New test. 6573 * testsuite/25_algorithms/partition_copy/constrained.cc: New test. 6574 * testsuite/25_algorithms/partition_point/constrained.cc: New test. 6575 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test. 6576 * testsuite/25_algorithms/remove/constrained.cc: New test. 6577 * testsuite/25_algorithms/remove_copy/constrained.cc: New test. 6578 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test. 6579 * testsuite/25_algorithms/remove_if/constrained.cc: New test. 6580 * testsuite/25_algorithms/replace/constrained.cc: New test. 6581 * testsuite/25_algorithms/replace_copy/constrained.cc: New test. 6582 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test. 6583 * testsuite/25_algorithms/replace_if/constrained.cc: New test. 6584 * testsuite/25_algorithms/reverse/constrained.cc: New test. 6585 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test. 6586 * testsuite/25_algorithms/rotate/constrained.cc: New test. 6587 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test. 6588 * testsuite/25_algorithms/search/constrained.cc: New test. 6589 * testsuite/25_algorithms/search_n/constrained.cc: New test. 6590 * testsuite/25_algorithms/set_difference/constrained.cc: New test. 6591 * testsuite/25_algorithms/set_intersection/constrained.cc: New test. 6592 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New 6593 test. 6594 * testsuite/25_algorithms/set_union/constrained.cc: New test. 6595 * testsuite/25_algorithms/shuffle/constrained.cc: New test. 6596 * testsuite/25_algorithms/sort/constrained.cc: New test. 6597 * testsuite/25_algorithms/stable_partition/constrained.cc: New test. 6598 * testsuite/25_algorithms/stable_sort/constrained.cc: New test. 6599 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test. 6600 * testsuite/25_algorithms/transform/constrained.cc: New test. 6601 * testsuite/25_algorithms/unique/constrained.cc: New test. 6602 * testsuite/25_algorithms/unique_copy/constrained.cc: New test. 6603 * testsuite/25_algorithms/upper_bound/constrained.cc: New test. 6604 6605 2020-02-06 Jonathan Wakely <jwakely (a] redhat.com> 6606 6607 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR 6608 number in comment. Fix indentation. 6609 6610 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove 6611 redundant _GLIBCXX20_CONSTEXPR. 6612 6613 * include/std/ranges (viewable_range): Replace decay_t with 6614 remove_cvref_t (LWG 3375). 6615 6616 2020-02-05 Jonathan Wakely <jwakely (a] redhat.com> 6617 6618 * include/bits/iterator_concepts.h (iter_reference_t) 6619 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t): 6620 Remove workarounds for PR c++/67704. 6621 * testsuite/24_iterators/aliases.cc: New test. 6622 6623 2020-02-05 Patrick Palka <ppalka (a] redhat.com> 6624 6625 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i 6626 when initializing _M_current. 6627 (move_iterator::base): Split into two overloads differing in 6628 ref-qualifiers as in P1207R4 for C++20. 6629 6630 2020-02-04 Jonathan Wakely <jwakely (a] redhat.com> 6631 6632 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after 6633 use. 6634 6635 PR libstdc++/93562 6636 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define. 6637 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it. 6638 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test. 6639 6640 2020-02-01 Andrew Burgess <andrew.burgess (a] embecosm.com> 6641 6642 * configure: Regenerate. 6643 6644 2020-01-31 Patrick Palka <ppalka (a] redhat.com> 6645 6646 * testsuite/24_iterators/range_operations/distance.cc: Do not assume 6647 test_range::end() returns the same type as test_range::begin(). 6648 * testsuite/24_iterators/range_operations/next.cc: Likewise. 6649 * testsuite/24_iterators/range_operations/prev.cc: Likewise. 6650 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end): 6651 Always return a sentinel<I>. 6652 6653 2020-01-29 Jonathan Wakely <jwakely (a] redhat.com> 6654 6655 PR libstdc++/92895 6656 * include/std/stop_token (stop_token::stop_possible()): Call new 6657 _M_stop_possible() function. 6658 (stop_token::stop_requested()): Do not use stop_possible(). 6659 (stop_token::binary_semaphore): New class, as temporary stand-in for 6660 std::binary_semaphore. 6661 (stop_token::_Stop_cb::_M_callback): Add noexcept to type. 6662 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done): 6663 New data members for symchronization with stop_callback destruction. 6664 (stop_token::_Stop_cb::_Stop_cb): Make non-template. 6665 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute): 6666 Remove. 6667 (stop_token::_Stop_cb::_M_run): New member function. 6668 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx): 6669 Remove. 6670 (stop_token::_Stop_state::_M_owners): New data member to track 6671 reference count for ownership. 6672 (stop_token::_Stop_state::_M_value): New data member combining a 6673 spinlock, the stop requested flag, and the reference count for 6674 associated stop_source objects. 6675 (stop_token::_Stop_state::_M_requester): New data member for 6676 synchronization with stop_callback destruction. 6677 (stop_token::_Stop_state::_M_stop_possible()): New member function. 6678 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit 6679 of _M_value. 6680 (stop_token::_Stop_state::_M_add_owner) 6681 (stop_token::_Stop_state::_M_release_ownership) 6682 (stop_token::_Stop_state::_M_add_ssrc) 6683 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for 6684 updating reference counts. 6685 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock) 6686 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock) 6687 (stop_token::_Stop_state::_M_try_lock) 6688 (stop_token::_Stop_state::_M_try_lock_and_stop) 6689 (stop_token::_Stop_state::_M_do_try_lock): New member functions for 6690 managing spinlock. 6691 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to 6692 read and update state. Release lock while running callbacks. Use new 6693 data members to synchronize with callback destruction. 6694 (stop_token::_Stop_state::_M_remove_callback): Likewise. 6695 (stop_token::_Stop_state::_M_register_callback): Use atomic operations 6696 to read and update state. 6697 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state, 6698 replacing shared_ptr. 6699 (stop_source::stop_source(const stop_source&)): Update reference count. 6700 (stop_source::operator=(const stop_source&)): Likewise. 6701 (stop_source::~stop_source()): Likewise. 6702 (stop_source::stop_source(stop_source&&)): Define as defaulted. 6703 (stop_source::operator=(stop_source&&)): Establish postcondition on 6704 parameter. 6705 (stop_callback): Enforce preconditions on template parameter. Replace 6706 base class with data member of new _Cb_impl type. 6707 (stop_callback::stop_callback(const stop_token&, Cb&&)) 6708 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race. 6709 (stop_callback::_Cb_impl): New type wrapping _Callback member and 6710 defining the _S_execute member function. 6711 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New 6712 test. 6713 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test. 6714 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test. 6715 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc: 6716 New test. 6717 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New 6718 test. 6719 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test. 6720 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test. 6721 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New 6722 test. 6723 6724 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use 6725 three_way_comparable_with. 6726 (__detail::__3way_cmp_with): Remove workaround for fixed bug. 6727 (compare_three_way::operator()): Remove redundant constraint from 6728 requires-clause. 6729 (__detail::_Synth3way::operator()): Use three_way_comparable_with 6730 instead of workaround. 6731 * testsuite/18_support/comparisons/object/93479.cc: Prune extra 6732 output due to simplified constraints on compare_three_way::operator(). 6733 6734 PR libstdc++/93479 6735 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid. 6736 * testsuite/18_support/comparisons/object/93479.cc: New test. 6737 6738 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end() 6739 returns the same type as test_range::begin(). Add comments. 6740 * testsuite/std/ranges/access/rbegin.cc: Likewise. 6741 * testsuite/std/ranges/access/rend.cc: Likewise. 6742 * testsuite/std/ranges/range.cc: Do not assume the sentinel for 6743 test_range is the same as its iterator type. 6744 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add 6745 operator- overloads to satisfy sized_sentinel_for when the iterator 6746 satisfies random_access_iterator. 6747 6748 2020-01-28 Jonathan Wakely <jwakely (a] redhat.com> 6749 6750 PR libstdc++/93470 6751 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict 6752 static assertion to object types. 6753 6754 PR libstdc++/93325 6755 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for 6756 clock_gettime instead of explicit glibc version check. 6757 * configure: Regenerate. 6758 6759 2020-01-28 Martin Liska <mliska (a] suse.cz> 6760 6761 PR libstdc++/93478 6762 * include/std/atomic: Fix typo. 6763 * include/std/optional: Likewise. 6764 6765 2020-01-27 Andrew Burgess <andrew.burgess (a] embecosm.com> 6766 6767 * configure: Regenerate. 6768 6769 2020-01-27 Jonathan Wakely <jwakely (a] redhat.com> 6770 6771 PR libstdc++/93426 6772 * include/std/span (span): Fix deduction guide. 6773 * testsuite/23_containers/span/deduction.cc: New test. 6774 6775 2020-01-24 Jonathan Wakely <jwakely (a] redhat.com> 6776 6777 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type. 6778 (__cmp_cat::_Ord::equivalent): Add enumerator. 6779 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less 6780 and greater. 6781 (partial_ordering, weak_ordering, strong_ordering): Remove 6782 constructors taking __cmp_cat::_Eq parameters. Use renamed 6783 enumerators. 6784 6785 2020-01-24 Maciej W. Rozycki <macro (a] wdc.com> 6786 6787 * acinclude.m4: Handle `--with-toolexeclibdir='. 6788 * Makefile.in: Regenerate. 6789 * aclocal.m4: Regenerate. 6790 * configure: Regenerate. 6791 * doc/Makefile.in: Regenerate. 6792 * include/Makefile.in: Regenerate. 6793 * libsupc++/Makefile.in: Regenerate. 6794 * po/Makefile.in: Regenerate. 6795 * python/Makefile.in: Regenerate. 6796 * src/Makefile.in: Regenerate. 6797 * src/c++11/Makefile.in: Regenerate. 6798 * src/c++17/Makefile.in: Regenerate. 6799 * src/c++98/Makefile.in: Regenerate. 6800 * src/filesystem/Makefile.in: Regenerate. 6801 * testsuite/Makefile.in: Regenerate. 6802 6803 2020-01-23 Alexandre Oliva <oliva (a] adacore.com> 6804 6805 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros. 6806 * configure: Rebuild. 6807 6808 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t. 6809 6810 2020-01-23 Jonathan Wakely <jwakely (a] redhat.com> 6811 6812 PR libstdc++/91947 6813 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify 6814 rule. 6815 * include/Makefile.in: Regenerate. 6816 6817 2020-01-20 Jonathan Wakely <jwakely (a] redhat.com> 6818 6819 * doc/xml/faq.xml: Fix grammar. 6820 * doc/xml/manual/appendix_contributing.xml: Improve instructions. 6821 * doc/xml/manual/spine.xml: Update copyright years. 6822 * doc/html/*: Regenerate. 6823 6824 2020-01-19 Eric S. Raymond <esr (a] thyrsus.com> 6825 6826 * doc/xml/faq.xml: Update for SVN -> Git transition. 6827 * doc/xml/manual/appendix_contributing.xml: Likewise. 6828 * doc/xml/manual/status_cxx1998.xml: Likewise. 6829 * doc/xml/manual/status_cxx2011.xml: Likewise. 6830 * doc/xml/manual/status_cxx2014.xml: Likewise. 6831 * doc/xml/manual/status_cxx2017.xml: Likewise. 6832 * doc/xml/manual/status_cxx2020.xml: Likewise. 6833 * doc/xml/manual/status_cxxtr1.xml: Likewise. 6834 * doc/xml/manual/status_cxxtr24733.xml: Likewise. 6835 6836 2020-01-18 Iain Sandoe <iain (a] sandoe.co.uk> 6837 6838 * include/Makefile.am: Add coroutine to the std set. 6839 * include/Makefile.in: Regenerated. 6840 * include/std/coroutine: New file. 6841 6842 2020-01-17 Jonathan Wakely <jwakely (a] redhat.com> 6843 6844 PR libstdc++/92376 6845 * include/bits/c++config: Only do PSTL config when the header is 6846 present, to fix freestanding. 6847 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation 6848 functions if they were detected by configure. 6849 6850 2020-01-16 Kai-Uwe Eckhardt <kuehro (a] gmx.de> 6851 Matthew Bauer <mjbauer95 (a] gmail.com> 6852 Jonathan Wakely <jwakely (a] redhat.com> 6853 6854 PR bootstrap/64271 (partial) 6855 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type 6856 to unsigned short. 6857 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit) 6858 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync 6859 definitions with NetBSD upstream. 6860 (ctype_base::blank): Use _CTYPE_BL. 6861 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove 6862 Declaration. 6863 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_. 6864 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char 6865 parameters to unsigned char. 6866 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise. 6867 6868 2020-01-16 Franois Dumont <fdumont (a] gcc.gnu.org> 6869 6870 PR libstdc++/91263 6871 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend. 6872 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>. 6873 (_Equality_base): Remove. 6874 (_Equality<>::_M_equal): Review implementation. Use 6875 std::is_permutation. 6876 * testsuite/23_containers/unordered_multiset/operators/1.cc 6877 (Hash, Equal, test02, test03): New. 6878 * testsuite/23_containers/unordered_set/operators/1.cc 6879 (Hash, Equal, test02, test03): New. 6880 6881 2020-01-15 Jonathan Wakely <jwakely (a] redhat.com> 6882 6883 PR libstdc++/93267 6884 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type): 6885 Move here from <bits/range_access.h> and define using __int128 when 6886 available. 6887 (__is_integer_like, __is_signed_integer_like): Move here from 6888 <bits/range_access.h>. 6889 (weakly_incrementable): Use __is_signed_integer_like. 6890 * include/bits/range_access.h (__max_diff_type, __max_size_type) 6891 (__is_integer_like, __is_signed_integer_like): Move to 6892 <bits/iterator_concepts.h>. 6893 (__make_unsigned_like_t): Move here from <ranges>. 6894 * include/std/ranges (__make_unsigned_like_t): Move to 6895 <bits/range_access.h>. 6896 (iota_view): Replace using-directive with using-declarations. 6897 * testsuite/std/ranges/iota/93267.cc: New test. 6898 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory. 6899 6900 2020-01-13 Jonathan Wakely <jwakely (a] redhat.com> 6901 6902 PR libstdc++/93244 6903 * include/bits/fs_path.h (path::generic_string<C,A>) 6904 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash. 6905 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check 6906 root-dir is converted to forward slash in generic pathname. 6907 * testsuite/27_io/filesystem/path/generic/utf.cc: New test. 6908 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test. 6909 6910 PR libstdc++/58605 6911 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization): 6912 Define. 6913 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>) 6914 (__atomic_float): Add default member initializer for C++20. 6915 * include/std/atomic (atomic): Likewise. 6916 (atomic::atomic()): Remove noexcept-specifier on default constructor. 6917 * include/std/version (__cpp_lib_atomic_value_initialization): Define. 6918 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line 6919 number. 6920 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise. 6921 * testsuite/29_atomics/atomic/cons/value_init.cc: New test. 6922 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test. 6923 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust 6924 expected result for is_trivially_default_constructible. 6925 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise. 6926 * testsuite/29_atomics/atomic_float/value_init.cc: New test. 6927 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise. 6928 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise. 6929 * testsuite/29_atomics/atomic_integral/cons/value_init.cc 6930 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust 6931 expected results for is_trivially_default_constructible. 6932 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add 6933 new test generator. 6934 6935 2020-01-10 Jonathan Wakely <jwakely (a] redhat.com> 6936 6937 * testsuite/util/testsuite_iterators.h: Improve comment. 6938 6939 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11 6940 initialization syntax. 6941 6942 PR libstdc++/92285 6943 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type 6944 of base class independent of __cplusplus value. 6945 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the 6946 type defined in the base class 6947 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test. 6948 * testsuite/24_iterators/istreambuf_iterator/requirements/ 6949 base_classes.cc: Adjust expected base class for C++98. 6950 6951 2020-01-09 Olivier Hainque <hainque (a] adacore.com> 6952 6953 * doc/xml/manual/appendix_contributing.xml: Document _C2 6954 as a reserved identifier, by VxWorks. 6955 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2. 6956 * include/bits/stl_multimap.h: Likewise. 6957 6958 2020-01-09 Jonathan Wakely <jwakely (a] redhat.com> 6959 6960 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==) 6961 (_ExtPtr_allocator::operator!=): Add missing const qualifiers. 6962 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add 6963 partial specialization to disambiguate the two constrained 6964 specializations. 6965 6966 * include/experimental/type_traits (experimental::is_pod_v): Disable 6967 -Wdeprecated-declarations warnings around reference to std::is_pod. 6968 * include/std/type_traits (is_pod_v): Likewise. 6969 * testsuite/18_support/max_align_t/requirements/2.cc: Also check 6970 is_standard_layout and is_trivial. Do not check is_pod for C++20. 6971 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc: 6972 Add -Wno-deprecated for C++20. 6973 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise. 6974 * testsuite/20_util/is_pod/value.cc: Likewise. 6975 * testsuite/experimental/type_traits/value.cc: Likewise. 6976 6977 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse (a] gmail.com> 6978 6979 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro. 6980 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20. 6981 * testuite/20_util/is_pod/deprecated-2a.cc: New test. 6982 6983 2020-01-09 Jonathan Wakely <jwakely (a] redhat.com> 6984 6985 PR libstdc++/93205 6986 * include/bits/random.h (operator>>): Check stream operation succeeds. 6987 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type 6988 typedefs. 6989 (operator>>): Remove redundant __istream_type typedefs. Check stream 6990 operations succeed. 6991 (__extract_params): New function to fill a vector from a stream. 6992 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line. 6993 6994 PR libstdc++/93208 6995 * config/abi/pre/gnu.ver: Add new exports. 6996 * include/std/memory_resource (memory_resource::~memory_resource()): 6997 Do not define inline. 6998 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise. 6999 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()): 7000 Define. 7001 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define. 7002 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test. 7003 7004 2020-01-09 Franois Dumont <fdumont (a] gcc.gnu.org> 7005 7006 PR libstdc++/92124 7007 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New 7008 template alias. 7009 (_Hashtable<>::__fwd_value_for): New. 7010 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template 7011 parameter. 7012 (_Hashtable<>::_M_assign<>): Add _Ht template parameter. 7013 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt. 7014 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept 7015 with std::move. 7016 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt. 7017 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)): 7018 Adapt. 7019 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)): 7020 Adapt. 7021 * testsuite/23_containers/unordered_set/92124.cc: New. 7022 7023 2020-01-08 Jonathan Wakely <jwakely (a] redhat.com> 7024 7025 PR libstdc++/93201 7026 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more 7027 detailed error reporting for remove_all. Check result of recursive 7028 call before incrementing iterator. 7029 (remove_all(const path&), remove_all(const path&, error_code&)): Use 7030 do_remove_all. 7031 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check 7032 result of recursive call before incrementing iterator. 7033 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors 7034 are reported correctly. 7035 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise. 7036 7037 2020-01-07 Thomas Rodgers <trodgers (a] redhat.com> 7038 7039 * include/std/condition_variable 7040 (condition_variable_any::wait_on): Rename to match current draft 7041 standard. 7042 (condition_variable_any::wait_on_until): Likewise. 7043 (condition_variable_any::wait_on_for): Likewise. 7044 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc: 7045 Adjust tests to account for renamed methods. 7046 7047 2020-01-07 Franois Dumont <fdumont (a] gcc.gnu.org> 7048 7049 PR libstdc++/92124 7050 * include/bits/stl_tree.h 7051 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace 7052 std::move_if_noexcept by std::move. 7053 * testsuite/23_containers/map/92124.cc: New. 7054 * testsuite/23_containers/set/92124.cc: New. 7055 7056 2020-01-06 Jonathan Wakely <jwakely (a] redhat.com> 7057 7058 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254). 7059 (stop_source): Likewise (LWG 3362). 7060 * testsuite/30_threads/stop_token/stop_source.cc: Test equality 7061 comparisons. 7062 7063 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp) 7064 (lexicographical_compare_three_way): Do not depend on 7065 __cpp_lib_concepts. 7066 * include/std/version (__cpp_lib_three_way_comparison): Only define 7067 when __cpp_lib_concepts is defined. 7068 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise. 7069 7070 2020-01-03 Jonathan Wakely <jwakely (a] redhat.com> 7071 7072 * include/bits/stl_algobase.h (lexicographical_compare_three_way): 7073 Only define four-argument overload when __cpp_lib_concepts is defined. 7074 7075 2020-01-01 John David Anglin <danglin (a] gcc.gnu.org> 7076 7077 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update. 7078 7079 2020-01-01 Jakub Jelinek <jakub (a] redhat.com> 7080 7081 Update copyright years. 7082 7084 Copyright (C) 2020 Free Software Foundation, Inc. 7085 7086 Copying and distribution of this file, with or without modification, 7087 are permitted in any medium without royalty provided the copyright 7088 notice and this notice are preserved. 7089
Indexes created Tue Oct 27 00:25:24 UTC 2026