unordered_set
Go to the documentation of this file.
// <unordered_set> -*- C++ -*-
// Copyright (C) 2007-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file include/unordered_set
* This is a Standard C++ Library header.
*/
#ifndef _GLIBCXX_UNORDERED_SET
#define _GLIBCXX_UNORDERED_SET 1
#pragma GCC system_header
#if __cplusplus < 201103L
# include <bits/c++0x_warning.h>
#else
#include <type_traits>
#include <initializer_list>
#include <bits/allocator.h>
#include <ext/alloc_traits.h>
#include <ext/aligned_buffer.h>
#include <bits/stl_pair.h>
#include <bits/stl_function.h> // equal_to, _Identity, _Select1st
#include <bits/functional_hash.h>
#include <bits/hashtable.h>
#include <bits/unordered_set.h>
#include <bits/range_access.h>
#include <bits/erase_if.h>
#ifdef _GLIBCXX_DEBUG
# include <debug/unordered_set>
#endif
#if __cplusplus >= 201703L
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
namespace pmr
{
template<typename _Tp> class polymorphic_allocator;
template<typename _Key, typename _Hash = std::hash<_Key>,
typename _Pred = std::equal_to<_Key>>
using unordered_set
= std::unordered_set<_Key, _Hash, _Pred,
polymorphic_allocator<_Key>>;
template<typename _Key, typename _Hash = std::hash<_Key>,
typename _Pred = std::equal_to<_Key>>
using unordered_multiset
= std::unordered_multiset<_Key, _Hash, _Pred,
polymorphic_allocator<_Key>>;
} // namespace pmr
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif // C++17
#if __cplusplus > 201703L
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename _Key, typename _Hash, typename _CPred, typename _Alloc,
typename _Predicate>
inline typename unordered_set<_Key, _Hash, _CPred, _Alloc>::size_type
erase_if(unordered_set<_Key, _Hash, _CPred, _Alloc>& __cont,
_Predicate __pred)
{ return __detail::__erase_nodes_if(__cont, __pred); }
template<typename _Key, typename _Hash, typename _CPred, typename _Alloc,
typename _Predicate>
inline typename unordered_multiset<_Key, _Hash, _CPred, _Alloc>::size_type
erase_if(unordered_multiset<_Key, _Hash, _CPred, _Alloc>& __cont,
_Predicate __pred)
{ return __detail::__erase_nodes_if(__cont, __pred); }
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif // C++20
#endif // C++11
#endif // _GLIBCXX_UNORDERED_SET