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2011-12-09 François Dumont <fdumont@gcc.gnu.org> * include/bits/hashtable.h (_Hashtable<>::emplace, _Hashtable<>::emplace_hint): Add. * include/debug/unordered_set (unordered_set<>::emplace, unordered_set<>::emplace_hint, unordered_multiset<>::emplace, unordered_multiset<>::emplace_hint): Add. * include/profile/unordered_set: Likewise. * include/debug/unordered_map (unordered_map<>::emplace, unordered_map<>::emplace_hint, unordered_multimap<>::emplace, unordered_multimap<>::emplace_hint): Add. * include/profile/unordered_map: Likewise. * testsuite/23_containers/unordered_map/modifiers/emplace.cc: New. * testsuite/23_containers/unordered_multimap/modifiers/emplace.cc: New. * testsuite/23_containers/unordered_set/modifiers/emplace.cc: New. * testsuite/23_containers/unordered_multiset/modifiers/emplace.cc: New. * testsuite/util/testsuite_container_traits.h (traits_base::has_emplace): Add and defined as std::true_type for unordered containers. * testsuite/util/exception/safety.h (emplace, emplace_hint): Add and use them in basic_safety exception test case. * doc/xml/manual/status_cxx2011.xml: Update unordered containers status. From-SVN: r182174
857 lines
26 KiB
C++
857 lines
26 KiB
C++
// Debugging unordered_map/unordered_multimap implementation -*- C++ -*-
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// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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// Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file debug/unordered_map
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* This file is a GNU debug extension to the Standard C++ Library.
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*/
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#ifndef _GLIBCXX_DEBUG_UNORDERED_MAP
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#define _GLIBCXX_DEBUG_UNORDERED_MAP 1
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#ifndef __GXX_EXPERIMENTAL_CXX0X__
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# include <bits/c++0x_warning.h>
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#else
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# include <unordered_map>
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#include <debug/safe_unordered_container.h>
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#include <debug/safe_iterator.h>
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#include <debug/safe_local_iterator.h>
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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namespace __debug
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{
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/// Class std::unordered_map with safety/checking/debug instrumentation.
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template<typename _Key, typename _Tp,
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typename _Hash = std::hash<_Key>,
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typename _Pred = std::equal_to<_Key>,
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typename _Alloc = std::allocator<_Key> >
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class unordered_map
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: public _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>,
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public __gnu_debug::_Safe_unordered_container<unordered_map<_Key, _Tp,
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_Hash, _Pred, _Alloc> >
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{
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typedef _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash,
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_Pred, _Alloc> _Base;
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typedef __gnu_debug::_Safe_unordered_container<unordered_map> _Safe_base;
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typedef typename _Base::const_iterator _Base_const_iterator;
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typedef typename _Base::iterator _Base_iterator;
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typedef typename _Base::const_local_iterator _Base_const_local_iterator;
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typedef typename _Base::local_iterator _Base_local_iterator;
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public:
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typedef typename _Base::size_type size_type;
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typedef typename _Base::hasher hasher;
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typedef typename _Base::key_equal key_equal;
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typedef typename _Base::allocator_type allocator_type;
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typedef typename _Base::key_type key_type;
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typedef typename _Base::value_type value_type;
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typedef __gnu_debug::_Safe_iterator<_Base_iterator,
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unordered_map> iterator;
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typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,
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unordered_map> const_iterator;
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typedef __gnu_debug::_Safe_local_iterator<_Base_local_iterator,
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unordered_map> local_iterator;
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typedef __gnu_debug::_Safe_local_iterator<_Base_const_local_iterator,
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unordered_map> const_local_iterator;
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explicit
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unordered_map(size_type __n = 10,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__n, __hf, __eql, __a) { }
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template<typename _InputIterator>
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unordered_map(_InputIterator __first, _InputIterator __last,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
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__last)),
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__gnu_debug::__base(__last), __n,
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__hf, __eql, __a) { }
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unordered_map(const unordered_map& __x)
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: _Base(__x) { }
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unordered_map(const _Base& __x)
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: _Base(__x) { }
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unordered_map(unordered_map&& __x)
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: _Base(std::move(__x)) { }
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unordered_map(initializer_list<value_type> __l,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__l, __n, __hf, __eql, __a) { }
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~unordered_map() noexcept { }
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unordered_map&
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operator=(const unordered_map& __x)
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{
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*static_cast<_Base*>(this) = __x;
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this->_M_invalidate_all();
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return *this;
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}
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unordered_map&
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operator=(unordered_map&& __x)
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{
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// NB: DR 1204.
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// NB: DR 675.
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clear();
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swap(__x);
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return *this;
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}
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unordered_map&
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operator=(initializer_list<value_type> __l)
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{
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this->clear();
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this->insert(__l);
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return *this;
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}
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void
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swap(unordered_map& __x)
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{
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_Base::swap(__x);
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_Safe_base::_M_swap(__x);
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}
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void
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clear() noexcept
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{
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_Base::clear();
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this->_M_invalidate_all();
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}
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iterator
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begin() noexcept
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{ return iterator(_Base::begin(), this); }
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const_iterator
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begin() const noexcept
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{ return const_iterator(_Base::begin(), this); }
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iterator
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end() noexcept
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{ return iterator(_Base::end(), this); }
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const_iterator
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end() const noexcept
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{ return const_iterator(_Base::end(), this); }
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const_iterator
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cbegin() const noexcept
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{ return const_iterator(_Base::begin(), this); }
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const_iterator
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cend() const noexcept
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{ return const_iterator(_Base::end(), this); }
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// local versions
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local_iterator
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begin(size_type __b)
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{ return local_iterator(_Base::begin(__b), __b, this); }
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local_iterator
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end(size_type __b)
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{ return local_iterator(_Base::end(__b), __b, this); }
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const_local_iterator
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begin(size_type __b) const
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{ return const_local_iterator(_Base::begin(__b), __b, this); }
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const_local_iterator
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end(size_type __b) const
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{ return const_local_iterator(_Base::end(__b), __b, this); }
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const_local_iterator
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cbegin(size_type __b) const
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{ return const_local_iterator(_Base::cbegin(__b), __b, this); }
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const_local_iterator
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cend(size_type __b) const
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{ return const_local_iterator(_Base::cend(__b), __b, this); }
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template<typename... _Args>
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std::pair<iterator, bool>
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emplace(_Args&&... __args)
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{
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size_type __bucket_count = this->bucket_count();
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std::pair<_Base_iterator, bool> __res
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= _Base::emplace(std::forward<_Args>(__args)...);
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_M_check_rehashed(__bucket_count);
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return std::make_pair(iterator(__res.first, this), __res.second);
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}
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template<typename... _Args>
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iterator
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emplace_hint(const_iterator __hint, _Args&&... __args)
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{
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__glibcxx_check_insert(__hint);
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it = _Base::emplace_hint(__hint.base(),
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std::forward<_Args>(__args)...);
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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std::pair<iterator, bool>
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insert(const value_type& __obj)
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{
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size_type __bucket_count = this->bucket_count();
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std::pair<_Base_iterator, bool> __res = _Base::insert(__obj);
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_M_check_rehashed(__bucket_count);
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return std::make_pair(iterator(__res.first, this), __res.second);
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}
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iterator
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insert(const_iterator __hint, const value_type& __obj)
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{
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__glibcxx_check_insert(__hint);
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it = _Base::insert(__hint.base(), __obj);
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_convertible<_Pair,
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value_type>::value>::type>
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std::pair<iterator, bool>
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insert(_Pair&& __obj)
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{
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size_type __bucket_count = this->bucket_count();
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std::pair<_Base_iterator, bool> __res =
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_Base::insert(std::forward<_Pair>(__obj));
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_M_check_rehashed(__bucket_count);
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return std::make_pair(iterator(__res.first, this), __res.second);
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_convertible<_Pair,
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value_type>::value>::type>
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iterator
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insert(const_iterator __hint, _Pair&& __obj)
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{
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__glibcxx_check_insert(__hint);
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it =
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_Base::insert(__hint.base(), std::forward<_Pair>(__obj));
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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void
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insert(std::initializer_list<value_type> __l)
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{
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size_type __bucket_count = this->bucket_count();
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_Base::insert(__l);
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_M_check_rehashed(__bucket_count);
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}
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template<typename _InputIterator>
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void
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insert(_InputIterator __first, _InputIterator __last)
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{
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__glibcxx_check_valid_range(__first, __last);
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size_type __bucket_count = this->bucket_count();
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_Base::insert(__gnu_debug::__base(__first),
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__gnu_debug::__base(__last));
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_M_check_rehashed(__bucket_count);
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}
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iterator
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find(const key_type& __key)
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{ return iterator(_Base::find(__key), this); }
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const_iterator
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find(const key_type& __key) const
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{ return const_iterator(_Base::find(__key), this); }
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std::pair<iterator, iterator>
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equal_range(const key_type& __key)
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{
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std::pair<_Base_iterator, _Base_iterator> __res =
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_Base::equal_range(__key);
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return std::make_pair(iterator(__res.first, this),
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iterator(__res.second, this));
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}
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std::pair<const_iterator, const_iterator>
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equal_range(const key_type& __key) const
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{
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std::pair<_Base_const_iterator, _Base_const_iterator> __res =
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_Base::equal_range(__key);
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return std::make_pair(const_iterator(__res.first, this),
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const_iterator(__res.second, this));
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}
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size_type
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erase(const key_type& __key)
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{
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size_type __ret(0);
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_Base_iterator __victim(_Base::find(__key));
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if (__victim != _Base::end())
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{
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this->_M_invalidate_if([__victim](_Base_const_iterator __it)
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{ return __it == __victim; });
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_Base_local_iterator __local_victim = _S_to_local(__victim);
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this->_M_invalidate_local_if(
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[__local_victim](_Base_const_local_iterator __it)
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{ return __it == __local_victim; });
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size_type __bucket_count = this->bucket_count();
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_Base::erase(__victim);
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_M_check_rehashed(__bucket_count);
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__ret = 1;
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}
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return __ret;
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}
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iterator
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erase(const_iterator __it)
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{
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__glibcxx_check_erase(__it);
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_Base_const_iterator __victim = __it.base();
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this->_M_invalidate_if([__victim](_Base_const_iterator __it)
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{ return __it == __victim; });
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_Base_const_local_iterator __local_victim = _S_to_local(__victim);
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this->_M_invalidate_local_if(
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[__local_victim](_Base_const_local_iterator __it)
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{ return __it == __local_victim; });
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __next = _Base::erase(__it.base());
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_M_check_rehashed(__bucket_count);
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return iterator(__next, this);
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}
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iterator
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erase(iterator __it)
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{ return erase(const_iterator(__it)); }
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iterator
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erase(const_iterator __first, const_iterator __last)
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{
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__glibcxx_check_erase_range(__first, __last);
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for (_Base_const_iterator __tmp = __first.base();
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__tmp != __last.base(); ++__tmp)
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{
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_GLIBCXX_DEBUG_VERIFY(__tmp != _Base::end(),
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_M_message(__gnu_debug::__msg_valid_range)
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._M_iterator(__first, "first")
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._M_iterator(__last, "last"));
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this->_M_invalidate_if([__tmp](_Base_const_iterator __it)
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{ return __it == __tmp; });
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_Base_const_local_iterator __local_tmp = _S_to_local(__tmp);
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this->_M_invalidate_local_if(
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[__local_tmp](_Base_const_local_iterator __it)
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{ return __it == __local_tmp; });
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}
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __next = _Base::erase(__first.base(), __last.base());
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_M_check_rehashed(__bucket_count);
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return iterator(__next, this);
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}
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_Base&
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_M_base() noexcept { return *this; }
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const _Base&
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_M_base() const noexcept { return *this; }
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private:
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void
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_M_invalidate_locals()
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{
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_Base_local_iterator __local_end = _Base::end(0);
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this->_M_invalidate_local_if(
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[__local_end](_Base_const_local_iterator __it)
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{ return __it != __local_end; });
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}
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void
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_M_invalidate_all()
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{
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_Base_iterator __end = _Base::end();
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this->_M_invalidate_if([__end](_Base_const_iterator __it)
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{ return __it != __end; });
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_M_invalidate_locals();
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}
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void
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_M_check_rehashed(size_type __prev_count)
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{
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if (__prev_count != this->bucket_count())
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_M_invalidate_locals();
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}
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static _Base_local_iterator
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_S_to_local(_Base_iterator __it)
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{ return _Base_local_iterator(__it._M_cur); }
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static _Base_const_local_iterator
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_S_to_local(_Base_const_iterator __it)
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{ return _Base_const_local_iterator(__it._M_cur); }
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};
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline void
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swap(unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ __x.swap(__y); }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return __x._M_equal(__y); }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator!=(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return !(__x == __y); }
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/// Class std::unordered_multimap with safety/checking/debug instrumentation.
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template<typename _Key, typename _Tp,
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typename _Hash = std::hash<_Key>,
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typename _Pred = std::equal_to<_Key>,
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typename _Alloc = std::allocator<_Key> >
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class unordered_multimap
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: public _GLIBCXX_STD_C::unordered_multimap<_Key, _Tp, _Hash,
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_Pred, _Alloc>,
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public __gnu_debug::_Safe_unordered_container<unordered_multimap<_Key,
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_Tp, _Hash, _Pred, _Alloc> >
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{
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typedef _GLIBCXX_STD_C::unordered_multimap<_Key, _Tp, _Hash,
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_Pred, _Alloc> _Base;
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typedef __gnu_debug::_Safe_unordered_container<unordered_multimap>
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_Safe_base;
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typedef typename _Base::const_iterator _Base_const_iterator;
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typedef typename _Base::iterator _Base_iterator;
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typedef typename _Base::const_local_iterator _Base_const_local_iterator;
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typedef typename _Base::local_iterator _Base_local_iterator;
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public:
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typedef typename _Base::size_type size_type;
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typedef typename _Base::hasher hasher;
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typedef typename _Base::key_equal key_equal;
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typedef typename _Base::allocator_type allocator_type;
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typedef typename _Base::key_type key_type;
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typedef typename _Base::value_type value_type;
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typedef __gnu_debug::_Safe_iterator<_Base_iterator,
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unordered_multimap> iterator;
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typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,
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unordered_multimap> const_iterator;
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typedef __gnu_debug::_Safe_local_iterator<
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_Base_local_iterator, unordered_multimap> local_iterator;
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typedef __gnu_debug::_Safe_local_iterator<
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_Base_const_local_iterator, unordered_multimap> const_local_iterator;
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explicit
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unordered_multimap(size_type __n = 10,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__n, __hf, __eql, __a) { }
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template<typename _InputIterator>
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unordered_multimap(_InputIterator __first, _InputIterator __last,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
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__last)),
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__gnu_debug::__base(__last), __n,
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__hf, __eql, __a) { }
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unordered_multimap(const unordered_multimap& __x)
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: _Base(__x) { }
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unordered_multimap(const _Base& __x)
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: _Base(__x) { }
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unordered_multimap(unordered_multimap&& __x)
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: _Base(std::move(__x)) { }
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unordered_multimap(initializer_list<value_type> __l,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__l, __n, __hf, __eql, __a) { }
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~unordered_multimap() noexcept { }
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unordered_multimap&
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operator=(const unordered_multimap& __x)
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{
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*static_cast<_Base*>(this) = __x;
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this->_M_invalidate_all();
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return *this;
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}
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unordered_multimap&
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operator=(unordered_multimap&& __x)
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{
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// NB: DR 1204.
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// NB: DR 675.
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clear();
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swap(__x);
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return *this;
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}
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unordered_multimap&
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operator=(initializer_list<value_type> __l)
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{
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this->clear();
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this->insert(__l);
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return *this;
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}
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void
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swap(unordered_multimap& __x)
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{
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_Base::swap(__x);
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_Safe_base::_M_swap(__x);
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}
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void
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clear() noexcept
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{
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_Base::clear();
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this->_M_invalidate_all();
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}
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iterator
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begin() noexcept
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{ return iterator(_Base::begin(), this); }
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const_iterator
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begin() const noexcept
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{ return const_iterator(_Base::begin(), this); }
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iterator
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end() noexcept
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{ return iterator(_Base::end(), this); }
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const_iterator
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end() const noexcept
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{ return const_iterator(_Base::end(), this); }
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const_iterator
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cbegin() const noexcept
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{ return const_iterator(_Base::begin(), this); }
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const_iterator
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cend() const noexcept
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{ return const_iterator(_Base::end(), this); }
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// local versions
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local_iterator
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begin(size_type __b)
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{ return local_iterator(_Base::begin(__b), __b, this); }
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local_iterator
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end(size_type __b)
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{ return local_iterator(_Base::end(__b), __b, this); }
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const_local_iterator
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begin(size_type __b) const
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{ return const_local_iterator(_Base::begin(__b), __b, this); }
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const_local_iterator
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end(size_type __b) const
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{ return const_local_iterator(_Base::end(__b), __b, this); }
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const_local_iterator
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cbegin(size_type __b) const
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{ return const_local_iterator(_Base::cbegin(__b), __b, this); }
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const_local_iterator
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cend(size_type __b) const
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{ return const_local_iterator(_Base::cend(__b), __b, this); }
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template<typename... _Args>
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iterator
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emplace(_Args&&... __args)
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{
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it
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= _Base::emplace(std::forward<_Args>(__args)...);
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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template<typename... _Args>
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iterator
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emplace_hint(const_iterator __hint, _Args&&... __args)
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{
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__glibcxx_check_insert(__hint);
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it = _Base::emplace_hint(__hint.base(),
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std::forward<_Args>(__args)...);
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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iterator
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insert(const value_type& __obj)
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{
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it = _Base::insert(__obj);
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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iterator
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insert(const_iterator __hint, const value_type& __obj)
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{
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__glibcxx_check_insert(__hint);
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it = _Base::insert(__hint.base(), __obj);
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_convertible<_Pair,
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value_type>::value>::type>
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iterator
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insert(_Pair&& __obj)
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{
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it = _Base::insert(std::forward<_Pair>(__obj));
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_convertible<_Pair,
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value_type>::value>::type>
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iterator
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insert(const_iterator __hint, _Pair&& __obj)
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{
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__glibcxx_check_insert(__hint);
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __it =
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_Base::insert(__hint.base(), std::forward<_Pair>(__obj));
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_M_check_rehashed(__bucket_count);
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return iterator(__it, this);
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}
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void
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insert(std::initializer_list<value_type> __l)
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{ _Base::insert(__l); }
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template<typename _InputIterator>
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void
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insert(_InputIterator __first, _InputIterator __last)
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{
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__glibcxx_check_valid_range(__first, __last);
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size_type __bucket_count = this->bucket_count();
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_Base::insert(__gnu_debug::__base(__first),
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__gnu_debug::__base(__last));
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_M_check_rehashed(__bucket_count);
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}
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iterator
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find(const key_type& __key)
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{ return iterator(_Base::find(__key), this); }
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const_iterator
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find(const key_type& __key) const
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{ return const_iterator(_Base::find(__key), this); }
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std::pair<iterator, iterator>
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equal_range(const key_type& __key)
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{
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std::pair<_Base_iterator, _Base_iterator> __res =
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_Base::equal_range(__key);
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return std::make_pair(iterator(__res.first, this),
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iterator(__res.second, this));
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}
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std::pair<const_iterator, const_iterator>
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equal_range(const key_type& __key) const
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{
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std::pair<_Base_const_iterator, _Base_const_iterator> __res =
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_Base::equal_range(__key);
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return std::make_pair(const_iterator(__res.first, this),
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const_iterator(__res.second, this));
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}
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size_type
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erase(const key_type& __key)
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{
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size_type __ret(0);
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size_type __bucket_count = this->bucket_count();
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std::pair<_Base_iterator, _Base_iterator> __pair =
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_Base::equal_range(__key);
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for (_Base_iterator __victim = __pair.first; __victim != __pair.second;)
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{
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this->_M_invalidate_if([__victim](_Base_const_iterator __it)
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{ return __it == __victim; });
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_Base_local_iterator __local_victim = _S_to_local(__victim);
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this->_M_invalidate_local_if(
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[__local_victim](_Base_const_local_iterator __it)
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{ return __it == __local_victim; });
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_Base::erase(__victim++);
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++__ret;
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}
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_M_check_rehashed(__bucket_count);
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return __ret;
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}
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iterator
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erase(const_iterator __it)
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{
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__glibcxx_check_erase(__it);
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_Base_const_iterator __victim = __it.base();
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this->_M_invalidate_if([__victim](_Base_const_iterator __it)
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{ return __it == __victim; });
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_Base_const_local_iterator __local_victim = _S_to_local(__victim);
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this->_M_invalidate_local_if(
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[__local_victim](_Base_const_local_iterator __it)
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{ return __it == __local_victim; });
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __next = _Base::erase(__it.base());
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_M_check_rehashed(__bucket_count);
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return iterator(__next, this);
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}
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iterator
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erase(iterator __it)
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{ return erase(const_iterator(__it)); }
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iterator
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erase(const_iterator __first, const_iterator __last)
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{
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__glibcxx_check_erase_range(__first, __last);
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for (_Base_const_iterator __tmp = __first.base();
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__tmp != __last.base(); ++__tmp)
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{
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_GLIBCXX_DEBUG_VERIFY(__tmp != _Base::end(),
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_M_message(__gnu_debug::__msg_valid_range)
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._M_iterator(__first, "first")
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._M_iterator(__last, "last"));
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this->_M_invalidate_if([__tmp](_Base_const_iterator __it)
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{ return __it == __tmp; });
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_Base_const_local_iterator __local_tmp = _S_to_local(__tmp);
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this->_M_invalidate_local_if(
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[__local_tmp](_Base_const_local_iterator __it)
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{ return __it == __local_tmp; });
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}
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size_type __bucket_count = this->bucket_count();
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_Base_iterator __next = _Base::erase(__first.base(), __last.base());
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_M_check_rehashed(__bucket_count);
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return iterator(__next, this);
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}
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_Base&
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_M_base() noexcept { return *this; }
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const _Base&
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_M_base() const noexcept { return *this; }
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private:
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void
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_M_invalidate_locals()
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{
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_Base_local_iterator __local_end = _Base::end(0);
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this->_M_invalidate_local_if(
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[__local_end](_Base_const_local_iterator __it)
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{ return __it != __local_end; });
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}
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void
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_M_invalidate_all()
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{
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_Base_iterator __end = _Base::end();
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this->_M_invalidate_if([__end](_Base_const_iterator __it)
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{ return __it != __end; });
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_M_invalidate_locals();
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}
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void
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_M_check_rehashed(size_type __prev_count)
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{
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if (__prev_count != this->bucket_count())
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_M_invalidate_locals();
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}
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static _Base_local_iterator
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_S_to_local(_Base_iterator __it)
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{ return _Base_local_iterator(__it._M_cur); }
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static _Base_const_local_iterator
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_S_to_local(_Base_const_iterator __it)
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{ return _Base_const_local_iterator(__it._M_cur); }
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};
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline void
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swap(unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ __x.swap(__y); }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return __x._M_equal(__y); }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator!=(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return !(__x == __y); }
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} // namespace __debug
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} // namespace std
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#endif // __GXX_EXPERIMENTAL_CXX0X__
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#endif
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