libstdc++: map Source File

libstdc++

experimental/map
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1// <experimental/map> -*- C++ -*-
2
3// Copyright (C) 2015-2026 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 experimental/map
26 * This is a TS C++ Library header.
27 * @ingroup libfund-ts
28 */
29
30#ifndef _GLIBCXX_EXPERIMENTAL_MAP
31#define _GLIBCXX_EXPERIMENTAL_MAP 1
32
33#ifdef _GLIBCXX_SYSHDR
34#pragma GCC system_header
35#endif
36
37#include <bits/requires_hosted.h> // experimental is currently omitted
38
39#if __cplusplus >= 201402L
40
41#include <map>
42#include <bits/erase_if.h>
43#include <experimental/memory_resource>
44
45namespace std _GLIBCXX_VISIBILITY(default)
46{
47_GLIBCXX_BEGIN_NAMESPACE_VERSION
48
49namespace experimental
50{
51inline namespace fundamentals_v2
52{
53 template<typename _Key, typename _Tp, typename _Compare, typename _Alloc,
54 typename _Predicate>
55 inline void
56 erase_if(map<_Key, _Tp, _Compare, _Alloc>& __cont, _Predicate __pred)
57 {
58 _GLIBCXX_STD_C::map<_Key, _Tp, _Compare, _Alloc>& __ucont = __cont;
59 std::__detail::__erase_nodes_if(__cont, __ucont, __pred);
60 }
61
62 template<typename _Key, typename _Tp, typename _Compare, typename _Alloc,
63 typename _Predicate>
64 inline void
65 erase_if(multimap<_Key, _Tp, _Compare, _Alloc>& __cont, _Predicate __pred)
66 {
67 _GLIBCXX_STD_C::multimap<_Key, _Tp, _Compare, _Alloc>& __ucont = __cont;
68 std::__detail::__erase_nodes_if(__cont, __ucont, __pred);
69 }
70
71 namespace pmr {
72 template<typename _Key, typename _Tp, typename _Compare = less<_Key>>
73 using map
74 = std::map<_Key, _Tp, _Compare,
75 polymorphic_allocator<pair<const _Key, _Tp>>>;
76
77 template<typename _Key, typename _Tp, typename _Compare = less<_Key>>
78 using multimap
79 = std::multimap<_Key, _Tp, _Compare,
80 polymorphic_allocator<pair<const _Key, _Tp>>>;
81 } // namespace pmr
82} // namespace fundamentals_v2
83} // namespace experimental
84
85_GLIBCXX_END_NAMESPACE_VERSION
86} // namespace std
87
88#endif // C++14
89
90#endif // _GLIBCXX_EXPERIMENTAL_MAP
erase_if.h
requires_hosted.h
std
ISO C++ entities toplevel namespace is std.
std::experimental
Namespace for features defined in ISO Technical Specifications.
map
memory_resource