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      1 // <deque> -*- C++ -*-
      2 
      3 // Copyright (C) 2001-2022 Free Software Foundation, Inc.
      4 //
      5 // This file is part of the GNU ISO C++ Library.  This library is free
      6 // software; you can redistribute it and/or modify it under the
      7 // terms of the GNU General Public License as published by the
      8 // Free Software Foundation; either version 3, or (at your option)
      9 // any later version.
     10 
     11 // This library is distributed in the hope that it will be useful,
     12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 // GNU General Public License for more details.
     15 
     16 // Under Section 7 of GPL version 3, you are granted additional
     17 // permissions described in the GCC Runtime Library Exception, version
     18 // 3.1, as published by the Free Software Foundation.
     19 
     20 // You should have received a copy of the GNU General Public License and
     21 // a copy of the GCC Runtime Library Exception along with this program;
     22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     23 // <http://www.gnu.org/licenses/>.
     24 
     25 /*
     26  *
     27  * Copyright (c) 1994
     28  * Hewlett-Packard Company
     29  *
     30  * Permission to use, copy, modify, distribute and sell this software
     31  * and its documentation for any purpose is hereby granted without fee,
     32  * provided that the above copyright notice appear in all copies and
     33  * that both that copyright notice and this permission notice appear
     34  * in supporting documentation.  Hewlett-Packard Company makes no
     35  * representations about the suitability of this software for any
     36  * purpose.  It is provided "as is" without express or implied warranty.
     37  *
     38  *
     39  * Copyright (c) 1997
     40  * Silicon Graphics Computer Systems, Inc.
     41  *
     42  * Permission to use, copy, modify, distribute and sell this software
     43  * and its documentation for any purpose is hereby granted without fee,
     44  * provided that the above copyright notice appear in all copies and
     45  * that both that copyright notice and this permission notice appear
     46  * in supporting documentation.  Silicon Graphics makes no
     47  * representations about the suitability of this software for any
     48  * purpose.  It is provided "as is" without express or implied warranty.
     49  */
     50 
     51 /** @file include/deque
     52  *  This is a Standard C++ Library header.
     53  */
     54 
     55 #ifndef _GLIBCXX_DEQUE
     56 #define _GLIBCXX_DEQUE 1
     57 
     58 #pragma GCC system_header
     59 
     60 #include <bits/stl_algobase.h>
     61 #include <bits/allocator.h>
     62 #include <bits/stl_construct.h>
     63 #include <bits/stl_uninitialized.h>
     64 #include <bits/stl_deque.h>
     65 #include <bits/refwrap.h>
     66 #include <bits/range_access.h>
     67 #include <bits/deque.tcc>
     68 
     69 #ifdef _GLIBCXX_DEBUG
     70 # include <debug/deque>
     71 #endif
     72 
     73 #if __cplusplus >= 201703L
     74 namespace std _GLIBCXX_VISIBILITY(default)
     75 {
     76 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     77   namespace pmr
     78   {
     79     template<typename _Tp> class polymorphic_allocator;
     80     template<typename _Tp>
     81       using deque = std::deque<_Tp, polymorphic_allocator<_Tp>>;
     82   } // namespace pmr
     83 _GLIBCXX_END_NAMESPACE_VERSION
     84 } // namespace std
     85 #endif // C++17
     86 
     87 #if __cplusplus > 201703L
     88 namespace std _GLIBCXX_VISIBILITY(default)
     89 {
     90 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     91 
     92 #define __cpp_lib_erase_if 202002L
     93 
     94   template<typename _Tp, typename _Alloc, typename _Predicate>
     95     inline typename deque<_Tp, _Alloc>::size_type
     96     erase_if(deque<_Tp, _Alloc>& __cont, _Predicate __pred)
     97     {
     98       using namespace __gnu_cxx;
     99       _GLIBCXX_STD_C::deque<_Tp, _Alloc>& __ucont = __cont;
    100       const auto __osz = __cont.size();
    101       const auto __end = __ucont.end();
    102       auto __removed = std::__remove_if(__ucont.begin(), __end,
    103 					__ops::__pred_iter(std::ref(__pred)));
    104       if (__removed != __end)
    105 	{
    106 	  __cont.erase(__niter_wrap(__cont.begin(), __removed),
    107 		       __cont.end());
    108 	  return __osz - __cont.size();
    109 	}
    110 
    111       return 0;
    112     }
    113 
    114   template<typename _Tp, typename _Alloc, typename _Up>
    115     inline typename deque<_Tp, _Alloc>::size_type
    116     erase(deque<_Tp, _Alloc>& __cont, const _Up& __value)
    117     {
    118       using namespace __gnu_cxx;
    119       _GLIBCXX_STD_C::deque<_Tp, _Alloc>& __ucont = __cont;
    120       const auto __osz = __cont.size();
    121       const auto __end = __ucont.end();
    122       auto __removed = std::__remove_if(__ucont.begin(), __end,
    123 					__ops::__iter_equals_val(__value));
    124       if (__removed != __end)
    125 	{
    126 	  __cont.erase(__niter_wrap(__cont.begin(), __removed),
    127 		       __cont.end());
    128 	  return __osz - __cont.size();
    129 	}
    130 
    131       return 0;
    132     }
    133 _GLIBCXX_END_NAMESPACE_VERSION
    134 } // namespace std
    135 #endif // C++20
    136 
    137 #endif /* _GLIBCXX_DEQUE */
    138