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      1 // <unordered_map> -*- C++ -*-
      2 
      3 // Copyright (C) 2007-2024 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 /** @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 #define __glibcxx_want_allocator_traits_is_always_equal
     50 #define __glibcxx_want_erase_if
     51 #define __glibcxx_want_generic_unordered_lookup
     52 #define __glibcxx_want_node_extract
     53 #define __glibcxx_want_nonmember_container_access
     54 #define __glibcxx_want_unordered_map_try_emplace
     55 #define __glibcxx_want_tuple_like
     56 #include <bits/version.h>
     57 
     58 #if __cplusplus >= 201703L
     59 #include <bits/memory_resource.h>
     60 namespace std _GLIBCXX_VISIBILITY(default)
     61 {
     62 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     63   namespace pmr
     64   {
     65     template<typename _Key, typename _Tp, typename _Hash = std::hash<_Key>,
     66 	     typename _Pred = std::equal_to<_Key>>
     67       using unordered_map
     68 	= std::unordered_map<_Key, _Tp, _Hash, _Pred,
     69 			     polymorphic_allocator<pair<const _Key, _Tp>>>;
     70     template<typename _Key, typename _Tp, typename _Hash = std::hash<_Key>,
     71 	     typename _Pred = std::equal_to<_Key>>
     72       using unordered_multimap
     73 	= std::unordered_multimap<_Key, _Tp, _Hash, _Pred,
     74 				  polymorphic_allocator<pair<const _Key, _Tp>>>;
     75   } // namespace pmr
     76 _GLIBCXX_END_NAMESPACE_VERSION
     77 } // namespace std
     78 #endif // C++17
     79 
     80 #if __cplusplus > 201703L
     81 namespace std _GLIBCXX_VISIBILITY(default)
     82 {
     83 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     84   template<typename _Key, typename _Tp, typename _Hash, typename _CPred,
     85 	   typename _Alloc, typename _Predicate>
     86     inline typename unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>::size_type
     87     erase_if(unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont,
     88 	     _Predicate __pred)
     89     {
     90       _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>&
     91 	__ucont = __cont;
     92       return __detail::__erase_nodes_if(__cont, __ucont, __pred);
     93     }
     94 
     95   template<typename _Key, typename _Tp, typename _Hash, typename _CPred,
     96 	   typename _Alloc, typename _Predicate>
     97     inline typename unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>::
     98 		    size_type
     99     erase_if(unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont,
    100 	     _Predicate __pred)
    101     {
    102       _GLIBCXX_STD_C::unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>&
    103 	__ucont = __cont;
    104       return __detail::__erase_nodes_if(__cont, __ucont, __pred);
    105     }
    106 _GLIBCXX_END_NAMESPACE_VERSION
    107 } // namespace std
    108 #endif // C++20
    109 
    110 #endif // C++11
    111 
    112 #endif // _GLIBCXX_UNORDERED_MAP
    113