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      1 // <deque> -*- C++ -*-
      2 
      3 // Copyright (C) 2001-2024 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/requires_hosted.h> // containers are hosted only
     61 
     62 #include <bits/stl_algobase.h>
     63 #include <bits/allocator.h>
     64 #include <bits/stl_construct.h>
     65 #include <bits/stl_uninitialized.h>
     66 #include <bits/stl_deque.h>
     67 #include <bits/refwrap.h>
     68 #include <bits/range_access.h>
     69 #include <bits/deque.tcc>
     70 
     71 #define __glibcxx_want_allocator_traits_is_always_equal
     72 #define __glibcxx_want_erase_if
     73 #define __glibcxx_want_nonmember_container_access
     74 #include <bits/version.h>
     75 
     76 #ifdef _GLIBCXX_DEBUG
     77 # include <debug/deque>
     78 #endif
     79 
     80 #if __cplusplus >= 201703L
     81 #include <bits/memory_resource.h>
     82 namespace std _GLIBCXX_VISIBILITY(default)
     83 {
     84 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     85   namespace pmr
     86   {
     87     template<typename _Tp>
     88       using deque = std::deque<_Tp, polymorphic_allocator<_Tp>>;
     89   } // namespace pmr
     90 _GLIBCXX_END_NAMESPACE_VERSION
     91 } // namespace std
     92 #endif // C++17
     93 
     94 #ifdef __cpp_lib_erase_if // C++ >= 20 && erase_if
     95 namespace std _GLIBCXX_VISIBILITY(default)
     96 {
     97 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     98 
     99   template<typename _Tp, typename _Alloc, typename _Predicate>
    100     inline typename deque<_Tp, _Alloc>::size_type
    101     erase_if(deque<_Tp, _Alloc>& __cont, _Predicate __pred)
    102     {
    103       using namespace __gnu_cxx;
    104       _GLIBCXX_STD_C::deque<_Tp, _Alloc>& __ucont = __cont;
    105       const auto __osz = __cont.size();
    106       const auto __end = __ucont.end();
    107       auto __removed = std::__remove_if(__ucont.begin(), __end,
    108 					__ops::__pred_iter(std::ref(__pred)));
    109       if (__removed != __end)
    110 	{
    111 	  __cont.erase(__niter_wrap(__cont.begin(), __removed),
    112 		       __cont.end());
    113 	  return __osz - __cont.size();
    114 	}
    115 
    116       return 0;
    117     }
    118 
    119   template<typename _Tp, typename _Alloc, typename _Up>
    120     inline typename deque<_Tp, _Alloc>::size_type
    121     erase(deque<_Tp, _Alloc>& __cont, const _Up& __value)
    122     {
    123       using namespace __gnu_cxx;
    124       _GLIBCXX_STD_C::deque<_Tp, _Alloc>& __ucont = __cont;
    125       const auto __osz = __cont.size();
    126       const auto __end = __ucont.end();
    127       auto __removed = std::__remove_if(__ucont.begin(), __end,
    128 					__ops::__iter_equals_val(__value));
    129       if (__removed != __end)
    130 	{
    131 	  __cont.erase(__niter_wrap(__cont.begin(), __removed),
    132 		       __cont.end());
    133 	  return __osz - __cont.size();
    134 	}
    135 
    136       return 0;
    137     }
    138 _GLIBCXX_END_NAMESPACE_VERSION
    139 } // namespace std
    140 #endif // __cpp_lib_erase_if
    141 
    142 #endif /* _GLIBCXX_DEQUE */
    143