libstdc++-v3/include/std/unordered_map

   1 // <unordered_map> -*- C++ -*-
   2
   3 // Copyright (C) 2007-2023 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 /** @file include/unordered_map
  26  *  This is a Standard C++ Library header.
  27  */
  28
  29 #ifndef _GLIBCXX_UNORDERED_MAP
  30 #define _GLIBCXX_UNORDERED_MAP 1
  31
  32 #pragma GCC system_header
  33
  34 #include <bits/requires_hosted.h> // container
  35
  36 #if __cplusplus < 201103L
  37 # include <bits/c++0x_warning.h>
  38 #else
  39
  40 #include <initializer_list>
  41 #include <bits/unordered_map.h>
  42 #include <bits/range_access.h>
  43 #include <bits/erase_if.h>
  44
  45 #ifdef _GLIBCXX_DEBUG
  46 # include <debug/unordered_map>
  47 #endif
  48
  49 #if __cplusplus >= 201703L
  50 #include <bits/memory_resource.h>
  51 namespace std _GLIBCXX_VISIBILITY(default)
  52 {
  53 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  54   namespace pmr
  55   {
  56     template<typename _Key, typename _Tp, typename _Hash = std::hash<_Key>,
  57              typename _Pred = std::equal_to<_Key>>
  58       using unordered_map
  59         = std::unordered_map<_Key, _Tp, _Hash, _Pred,
  60                              polymorphic_allocator<pair<const _Key, _Tp>>>;
  61     template<typename _Key, typename _Tp, typename _Hash = std::hash<_Key>,
  62              typename _Pred = std::equal_to<_Key>>
  63       using unordered_multimap
  64         = std::unordered_multimap<_Key, _Tp, _Hash, _Pred,
  65                                   polymorphic_allocator<pair<const _Key, _Tp>>>;
  66   } // namespace pmr
  67 _GLIBCXX_END_NAMESPACE_VERSION
  68 } // namespace std
  69 #endif // C++17
  70
  71 #if __cplusplus > 201703L
  72 namespace std _GLIBCXX_VISIBILITY(default)
  73 {
  74 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  75   template<typename _Key, typename _Tp, typename _Hash, typename _CPred,
  76            typename _Alloc, typename _Predicate>
  77     inline typename unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>::size_type
  78     erase_if(unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont,
  79              _Predicate __pred)
  80     {
  81       _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>&
  82         __ucont = __cont;
  83       return __detail::__erase_nodes_if(__cont, __ucont, __pred);
  84     }
  85
  86   template<typename _Key, typename _Tp, typename _Hash, typename _CPred,
  87            typename _Alloc, typename _Predicate>
  88     inline typename unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>::
  89                     size_type
  90     erase_if(unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont,
  91              _Predicate __pred)
  92     {
  93       _GLIBCXX_STD_C::unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>&
  94         __ucont = __cont;
  95       return __detail::__erase_nodes_if(__cont, __ucont, __pred);
  96     }
  97 _GLIBCXX_END_NAMESPACE_VERSION
  98 } // namespace std
  99 #endif // C++20
 100
 101 #endif // C++11
 102
 103 #endif // _GLIBCXX_UNORDERED_MAP