1 // <unordered_set> -*- C++ -*-
3 // Copyright (C) 2007-2022 Free Software Foundation, Inc.
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)
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.
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.
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/>.
25 /** @file include/unordered_set
26 * This is a Standard C++ Library header.
29 #ifndef _GLIBCXX_UNORDERED_SET
30 #define _GLIBCXX_UNORDERED_SET 1
32 #pragma GCC system_header
34 #include <bits/requires_hosted.h> // containers
36 #if __cplusplus < 201103L
37 # include <bits/c++0x_warning.h>
40 #include <initializer_list>
41 #include <bits/unordered_set.h>
42 #include <bits/range_access.h>
43 #include <bits/erase_if.h>
46 # include <debug/unordered_set>
49 #if __cplusplus >= 201703L
50 #include <bits/memory_resource.h>
51 namespace std _GLIBCXX_VISIBILITY(default)
53 _GLIBCXX_BEGIN_NAMESPACE_VERSION
56 template<typename _Key, typename _Hash = std::hash<_Key>,
57 typename _Pred = std::equal_to<_Key>>
59 = std::unordered_set<_Key, _Hash, _Pred,
60 polymorphic_allocator<_Key>>;
61 template<typename _Key, typename _Hash = std::hash<_Key>,
62 typename _Pred = std::equal_to<_Key>>
63 using unordered_multiset
64 = std::unordered_multiset<_Key, _Hash, _Pred,
65 polymorphic_allocator<_Key>>;
67 _GLIBCXX_END_NAMESPACE_VERSION
71 #if __cplusplus > 201703L
72 namespace std _GLIBCXX_VISIBILITY(default)
74 _GLIBCXX_BEGIN_NAMESPACE_VERSION
75 template<typename _Key, typename _Hash, typename _CPred, typename _Alloc,
77 inline typename unordered_set<_Key, _Hash, _CPred, _Alloc>::size_type
78 erase_if(unordered_set<_Key, _Hash, _CPred, _Alloc>& __cont,
81 const _GLIBCXX_STD_C::unordered_set<_Key, _Hash, _CPred, _Alloc>&
83 return __detail::__erase_nodes_if(__cont, __ucont, __pred);
86 template<typename _Key, typename _Hash, typename _CPred, typename _Alloc,
88 inline typename unordered_multiset<_Key, _Hash, _CPred, _Alloc>::size_type
89 erase_if(unordered_multiset<_Key, _Hash, _CPred, _Alloc>& __cont,
92 const _GLIBCXX_STD_C::unordered_multiset<_Key, _Hash, _CPred, _Alloc>&
94 return __detail::__erase_nodes_if(__cont, __ucont, __pred);
96 _GLIBCXX_END_NAMESPACE_VERSION
102 #endif // _GLIBCXX_UNORDERED_SET