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1// <experimental/unordered_map> -*- C++ -*-
2
6441eb6d 3// Copyright (C) 2015-2025 Free Software Foundation, Inc.
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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 experimental/unordered_map
26 * This is a TS C++ Library header.
1ababc8b 27 * @ingroup libfund-ts
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28 */
29
30#ifndef _GLIBCXX_EXPERIMENTAL_UNORDERED_MAP
31#define _GLIBCXX_EXPERIMENTAL_UNORDERED_MAP 1
32
63a598de 33#ifdef _GLIBCXX_SYSHDR
c0b12dad 34#pragma GCC system_header
63a598de 35#endif
c0b12dad 36
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37#include <bits/requires_hosted.h> // experimental is currently omitted
38
d681026d 39#if __cplusplus >= 201402L
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40
41#include <unordered_map>
188588e4 42#include <bits/erase_if.h>
80144045 43#include <experimental/memory_resource>
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44
45namespace std _GLIBCXX_VISIBILITY(default)
46{
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47_GLIBCXX_BEGIN_NAMESPACE_VERSION
48
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49namespace experimental
50{
51inline namespace fundamentals_v2
52{
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53 template<typename _Key, typename _Tp, typename _Hash, typename _CPred,
54 typename _Alloc, typename _Predicate>
ea365e01 55 inline void
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56 erase_if(unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont,
57 _Predicate __pred)
5f40d34b 58 {
f54ceb20 59 _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash, _CPred, _Alloc>&
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60 __ucont = __cont;
61 std::__detail::__erase_nodes_if(__cont, __ucont, __pred);
62 }
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63
64 template<typename _Key, typename _Tp, typename _Hash, typename _CPred,
65 typename _Alloc, typename _Predicate>
ea365e01 66 inline void
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67 erase_if(unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>& __cont,
68 _Predicate __pred)
5f40d34b 69 {
f54ceb20 70 _GLIBCXX_STD_C::unordered_multimap<_Key, _Tp, _Hash, _CPred, _Alloc>&
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71 __ucont = __cont;
72 std::__detail::__erase_nodes_if(__cont, __ucont, __pred);
73 }
c0b12dad 74
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75 namespace pmr {
76 template<typename _Key, typename _Tp, typename _Hash = hash<_Key>,
77 typename _Pred = equal_to<_Key>>
78 using unordered_map
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79 = std::unordered_map<_Key, _Tp, _Hash, _Pred,
80 polymorphic_allocator<pair<const _Key, _Tp>>>;
81
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82 template<typename _Key, typename _Tp, typename _Hash = hash<_Key>,
83 typename _Pred = equal_to<_Key>>
84 using unordered_multimap
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85 = std::unordered_multimap<_Key, _Tp, _Hash, _Pred,
86 polymorphic_allocator<pair<const _Key, _Tp>>>;
4a15d842 87 } // namespace pmr
80144045 88
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89} // namespace fundamentals_v2
90} // namespace experimental
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91
92_GLIBCXX_END_NAMESPACE_VERSION
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93} // namespace std
94
95#endif // C++14
96
97#endif // _GLIBCXX_EXPERIMENTAL_UNORDERED_MAP