93843da697
The last C++20 changes from P1614R2, "The Mothership has Landed" * include/bits/stl_map.h (map): Define operator<=> and remove operator< for C++20. * include/bits/stl_multimap.h (multimap): Likewise. * include/bits/stl_multiset.h (multiset): Likewise. * include/bits/stl_set.h (set): Likewise. * include/bits/stl_tree.h (_Rb_tree): Likewise. (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant operator!= for C++20. * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20. * include/debug/multimap.h (__gnu_debug::multimap): Likewise. * include/debug/multiset.h (__gnu_debug::multiset): Likewise. * include/debug/set.h (__gnu_debug::set): Likewise. * testsuite/23_containers/map/operators/cmp_c++20.cc: New test. * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test. * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test. * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
655 lines
19 KiB
C++
655 lines
19 KiB
C++
// Debugging set implementation -*- C++ -*-
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// Copyright (C) 2003-2020 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/set.h
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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_SET_H
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#define _GLIBCXX_DEBUG_SET_H 1
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#include <debug/safe_sequence.h>
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#include <debug/safe_container.h>
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#include <debug/safe_iterator.h>
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#include <utility>
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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::set with safety/checking/debug instrumentation.
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template<typename _Key, typename _Compare = std::less<_Key>,
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typename _Allocator = std::allocator<_Key> >
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class set
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: public __gnu_debug::_Safe_container<
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set<_Key, _Compare, _Allocator>, _Allocator,
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__gnu_debug::_Safe_node_sequence>,
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public _GLIBCXX_STD_C::set<_Key,_Compare,_Allocator>
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{
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typedef _GLIBCXX_STD_C::set<_Key, _Compare, _Allocator> _Base;
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typedef __gnu_debug::_Safe_container<
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set, _Allocator, __gnu_debug::_Safe_node_sequence> _Safe;
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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 __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
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template<typename _ItT, typename _SeqT, typename _CatT>
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friend class ::__gnu_debug::_Safe_iterator;
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public:
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// types:
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typedef _Key key_type;
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typedef _Key value_type;
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typedef _Compare key_compare;
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typedef _Compare value_compare;
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typedef _Allocator allocator_type;
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typedef typename _Base::reference reference;
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typedef typename _Base::const_reference const_reference;
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typedef __gnu_debug::_Safe_iterator<_Base_iterator, set>
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iterator;
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typedef __gnu_debug::_Safe_iterator<_Base_const_iterator, set>
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const_iterator;
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typedef typename _Base::size_type size_type;
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typedef typename _Base::difference_type difference_type;
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typedef typename _Base::pointer pointer;
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typedef typename _Base::const_pointer const_pointer;
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typedef std::reverse_iterator<iterator> reverse_iterator;
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typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
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// 23.3.3.1 construct/copy/destroy:
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#if __cplusplus < 201103L
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set() : _Base() { }
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set(const set& __x)
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: _Base(__x) { }
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~set() { }
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#else
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set() = default;
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set(const set&) = default;
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set(set&&) = default;
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set(initializer_list<value_type> __l,
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const _Compare& __comp = _Compare(),
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const allocator_type& __a = allocator_type())
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: _Base(__l, __comp, __a) { }
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explicit
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set(const allocator_type& __a)
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: _Base(__a) { }
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set(const set& __x, const allocator_type& __a)
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: _Base(__x, __a) { }
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set(set&& __x, const allocator_type& __a)
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noexcept( noexcept(_Base(std::move(__x._M_base()), __a)) )
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: _Safe(std::move(__x._M_safe()), __a),
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_Base(std::move(__x._M_base()), __a) { }
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set(initializer_list<value_type> __l, const allocator_type& __a)
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: _Base(__l, __a) { }
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template<typename _InputIterator>
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set(_InputIterator __first, _InputIterator __last,
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const allocator_type& __a)
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: _Base(__gnu_debug::__base(
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__glibcxx_check_valid_constructor_range(__first, __last)),
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__gnu_debug::__base(__last), __a) { }
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~set() = default;
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#endif
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explicit set(const _Compare& __comp,
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const _Allocator& __a = _Allocator())
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: _Base(__comp, __a) { }
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template<typename _InputIterator>
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set(_InputIterator __first, _InputIterator __last,
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const _Compare& __comp = _Compare(),
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const _Allocator& __a = _Allocator())
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: _Base(__gnu_debug::__base(
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__glibcxx_check_valid_constructor_range(__first, __last)),
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__gnu_debug::__base(__last),
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__comp, __a) { }
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set(const _Base& __x)
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: _Base(__x) { }
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#if __cplusplus < 201103L
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set&
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operator=(const set& __x)
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{
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this->_M_safe() = __x;
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_M_base() = __x;
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return *this;
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}
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#else
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set&
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operator=(const set&) = default;
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set&
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operator=(set&&) = default;
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set&
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operator=(initializer_list<value_type> __l)
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{
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_M_base() = __l;
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this->_M_invalidate_all();
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return *this;
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}
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#endif
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using _Base::get_allocator;
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// iterators:
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iterator
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begin() _GLIBCXX_NOEXCEPT
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{ return iterator(_Base::begin(), this); }
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const_iterator
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begin() const _GLIBCXX_NOEXCEPT
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{ return const_iterator(_Base::begin(), this); }
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iterator
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end() _GLIBCXX_NOEXCEPT
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{ return iterator(_Base::end(), this); }
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const_iterator
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end() const _GLIBCXX_NOEXCEPT
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{ return const_iterator(_Base::end(), this); }
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reverse_iterator
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rbegin() _GLIBCXX_NOEXCEPT
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{ return reverse_iterator(end()); }
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const_reverse_iterator
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rbegin() const _GLIBCXX_NOEXCEPT
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{ return const_reverse_iterator(end()); }
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reverse_iterator
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rend() _GLIBCXX_NOEXCEPT
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{ return reverse_iterator(begin()); }
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const_reverse_iterator
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rend() const _GLIBCXX_NOEXCEPT
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{ return const_reverse_iterator(begin()); }
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#if __cplusplus >= 201103L
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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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const_reverse_iterator
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crbegin() const noexcept
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{ return const_reverse_iterator(end()); }
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const_reverse_iterator
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crend() const noexcept
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{ return const_reverse_iterator(begin()); }
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#endif
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// capacity:
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using _Base::empty;
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using _Base::size;
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using _Base::max_size;
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// modifiers:
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#if __cplusplus >= 201103L
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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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auto __res = _Base::emplace(std::forward<_Args>(__args)...);
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return { { __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 __pos, _Args&&... __args)
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{
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__glibcxx_check_insert(__pos);
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return
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{
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_Base::emplace_hint(__pos.base(), std::forward<_Args>(__args)...),
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this
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};
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}
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#endif
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std::pair<iterator, bool>
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insert(const value_type& __x)
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{
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std::pair<_Base_iterator, bool> __res = _Base::insert(__x);
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return std::pair<iterator, bool>(iterator(__res.first, this),
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__res.second);
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}
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#if __cplusplus >= 201103L
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std::pair<iterator, bool>
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insert(value_type&& __x)
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{
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auto __res = _Base::insert(std::move(__x));
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return { { __res.first, this }, __res.second };
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}
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#endif
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iterator
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insert(const_iterator __position, const value_type& __x)
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{
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__glibcxx_check_insert(__position);
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return iterator(_Base::insert(__position.base(), __x), this);
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}
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#if __cplusplus >= 201103L
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iterator
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insert(const_iterator __position, value_type&& __x)
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{
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__glibcxx_check_insert(__position);
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return { _Base::insert(__position.base(), std::move(__x)), this };
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}
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#endif
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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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typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
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__glibcxx_check_valid_range2(__first, __last, __dist);
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if (__dist.second >= __gnu_debug::__dp_sign)
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_Base::insert(__gnu_debug::__unsafe(__first),
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__gnu_debug::__unsafe(__last));
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else
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_Base::insert(__first, __last);
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}
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#if __cplusplus >= 201103L
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void
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insert(initializer_list<value_type> __l)
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{ _Base::insert(__l); }
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#endif
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#if __cplusplus > 201402L
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using node_type = typename _Base::node_type;
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using insert_return_type = _Node_insert_return<iterator, node_type>;
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node_type
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extract(const_iterator __position)
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{
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__glibcxx_check_erase(__position);
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this->_M_invalidate_if(_Equal(__position.base()));
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return _Base::extract(__position.base());
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}
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node_type
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extract(const key_type& __key)
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{
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const auto __position = find(__key);
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if (__position != end())
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return extract(__position);
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return {};
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}
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insert_return_type
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insert(node_type&& __nh)
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{
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auto __ret = _Base::insert(std::move(__nh));
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iterator __pos = iterator(__ret.position, this);
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return { __pos, __ret.inserted, std::move(__ret.node) };
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}
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iterator
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insert(const_iterator __hint, node_type&& __nh)
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{
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__glibcxx_check_insert(__hint);
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return { _Base::insert(__hint.base(), std::move(__nh)), this };
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}
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using _Base::merge;
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#endif // C++17
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#if __cplusplus >= 201103L
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_GLIBCXX_ABI_TAG_CXX11
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iterator
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erase(const_iterator __position)
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{
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__glibcxx_check_erase(__position);
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this->_M_invalidate_if(_Equal(__position.base()));
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return { _Base::erase(__position.base()), this };
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}
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#else
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void
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erase(iterator __position)
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{
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__glibcxx_check_erase(__position);
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this->_M_invalidate_if(_Equal(__position.base()));
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_Base::erase(__position.base());
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}
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#endif
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size_type
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erase(const key_type& __x)
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{
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_Base_iterator __victim = _Base::find(__x);
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if (__victim == _Base::end())
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return 0;
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else
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{
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this->_M_invalidate_if(_Equal(__victim));
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_Base::erase(__victim);
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return 1;
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}
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}
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#if __cplusplus >= 201103L
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_GLIBCXX_ABI_TAG_CXX11
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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_RESOLVE_LIB_DEFECTS
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// 151. can't currently clear() empty container
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__glibcxx_check_erase_range(__first, __last);
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for (_Base_const_iterator __victim = __first.base();
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__victim != __last.base(); ++__victim)
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{
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_GLIBCXX_DEBUG_VERIFY(__victim != _Base::cend(),
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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(_Equal(__victim));
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}
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return { _Base::erase(__first.base(), __last.base()), this };
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}
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#else
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void
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erase(iterator __first, iterator __last)
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{
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 151. can't currently clear() empty container
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__glibcxx_check_erase_range(__first, __last);
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for (_Base_iterator __victim = __first.base();
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__victim != __last.base(); ++__victim)
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{
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_GLIBCXX_DEBUG_VERIFY(__victim != _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(_Equal(__victim));
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}
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_Base::erase(__first.base(), __last.base());
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}
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#endif
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void
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swap(set& __x)
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_GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) )
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{
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_Safe::_M_swap(__x);
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_Base::swap(__x);
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}
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void
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clear() _GLIBCXX_NOEXCEPT
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{
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this->_M_invalidate_all();
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_Base::clear();
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}
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// observers:
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using _Base::key_comp;
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using _Base::value_comp;
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// set operations:
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iterator
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find(const key_type& __x)
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{ return iterator(_Base::find(__x), this); }
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 214. set::find() missing const overload
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const_iterator
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find(const key_type& __x) const
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{ return const_iterator(_Base::find(__x), this); }
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#if __cplusplus > 201103L
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template<typename _Kt,
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typename _Req =
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typename __has_is_transparent<_Compare, _Kt>::type>
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iterator
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find(const _Kt& __x)
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{ return { _Base::find(__x), this }; }
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template<typename _Kt,
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typename _Req =
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typename __has_is_transparent<_Compare, _Kt>::type>
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const_iterator
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find(const _Kt& __x) const
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{ return { _Base::find(__x), this }; }
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#endif
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using _Base::count;
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iterator
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lower_bound(const key_type& __x)
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{ return iterator(_Base::lower_bound(__x), this); }
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 214. set::find() missing const overload
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const_iterator
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lower_bound(const key_type& __x) const
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{ return const_iterator(_Base::lower_bound(__x), this); }
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#if __cplusplus > 201103L
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template<typename _Kt,
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typename _Req =
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typename __has_is_transparent<_Compare, _Kt>::type>
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iterator
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lower_bound(const _Kt& __x)
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{ return { _Base::lower_bound(__x), this }; }
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template<typename _Kt,
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typename _Req =
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typename __has_is_transparent<_Compare, _Kt>::type>
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const_iterator
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lower_bound(const _Kt& __x) const
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{ return { _Base::lower_bound(__x), this }; }
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#endif
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iterator
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upper_bound(const key_type& __x)
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{ return iterator(_Base::upper_bound(__x), this); }
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 214. set::find() missing const overload
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const_iterator
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upper_bound(const key_type& __x) const
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{ return const_iterator(_Base::upper_bound(__x), this); }
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#if __cplusplus > 201103L
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template<typename _Kt,
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typename _Req =
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typename __has_is_transparent<_Compare, _Kt>::type>
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iterator
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upper_bound(const _Kt& __x)
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{ return { _Base::upper_bound(__x), this }; }
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template<typename _Kt,
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typename _Req =
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typename __has_is_transparent<_Compare, _Kt>::type>
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const_iterator
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upper_bound(const _Kt& __x) const
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{ return { _Base::upper_bound(__x), this }; }
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#endif
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std::pair<iterator, iterator>
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equal_range(const key_type& __x)
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{
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std::pair<_Base_iterator, _Base_iterator> __res =
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_Base::equal_range(__x);
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return std::make_pair(iterator(__res.first, this),
|
|
iterator(__res.second, this));
|
|
}
|
|
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 214. set::find() missing const overload
|
|
std::pair<const_iterator, const_iterator>
|
|
equal_range(const key_type& __x) const
|
|
{
|
|
std::pair<_Base_const_iterator, _Base_const_iterator> __res =
|
|
_Base::equal_range(__x);
|
|
return std::make_pair(const_iterator(__res.first, this),
|
|
const_iterator(__res.second, this));
|
|
}
|
|
|
|
#if __cplusplus > 201103L
|
|
template<typename _Kt,
|
|
typename _Req =
|
|
typename __has_is_transparent<_Compare, _Kt>::type>
|
|
std::pair<iterator, iterator>
|
|
equal_range(const _Kt& __x)
|
|
{
|
|
auto __res = _Base::equal_range(__x);
|
|
return { { __res.first, this }, { __res.second, this } };
|
|
}
|
|
|
|
template<typename _Kt,
|
|
typename _Req =
|
|
typename __has_is_transparent<_Compare, _Kt>::type>
|
|
std::pair<const_iterator, const_iterator>
|
|
equal_range(const _Kt& __x) const
|
|
{
|
|
auto __res = _Base::equal_range(__x);
|
|
return { { __res.first, this }, { __res.second, this } };
|
|
}
|
|
#endif
|
|
|
|
_Base&
|
|
_M_base() _GLIBCXX_NOEXCEPT { return *this; }
|
|
|
|
const _Base&
|
|
_M_base() const _GLIBCXX_NOEXCEPT { return *this; }
|
|
};
|
|
|
|
#if __cpp_deduction_guides >= 201606
|
|
|
|
template<typename _InputIterator,
|
|
typename _Compare =
|
|
less<typename iterator_traits<_InputIterator>::value_type>,
|
|
typename _Allocator =
|
|
allocator<typename iterator_traits<_InputIterator>::value_type>,
|
|
typename = _RequireInputIter<_InputIterator>,
|
|
typename = _RequireNotAllocator<_Compare>,
|
|
typename = _RequireAllocator<_Allocator>>
|
|
set(_InputIterator, _InputIterator,
|
|
_Compare = _Compare(), _Allocator = _Allocator())
|
|
-> set<typename iterator_traits<_InputIterator>::value_type,
|
|
_Compare, _Allocator>;
|
|
|
|
template<typename _Key, typename _Compare = less<_Key>,
|
|
typename _Allocator = allocator<_Key>,
|
|
typename = _RequireNotAllocator<_Compare>,
|
|
typename = _RequireAllocator<_Allocator>>
|
|
set(initializer_list<_Key>,
|
|
_Compare = _Compare(), _Allocator = _Allocator())
|
|
-> set<_Key, _Compare, _Allocator>;
|
|
|
|
template<typename _InputIterator, typename _Allocator,
|
|
typename = _RequireInputIter<_InputIterator>,
|
|
typename = _RequireAllocator<_Allocator>>
|
|
set(_InputIterator, _InputIterator, _Allocator)
|
|
-> set<typename iterator_traits<_InputIterator>::value_type,
|
|
less<typename iterator_traits<_InputIterator>::value_type>,
|
|
_Allocator>;
|
|
|
|
template<typename _Key, typename _Allocator,
|
|
typename = _RequireAllocator<_Allocator>>
|
|
set(initializer_list<_Key>, _Allocator)
|
|
-> set<_Key, less<_Key>, _Allocator>;
|
|
|
|
#endif // deduction guides
|
|
|
|
template<typename _Key, typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator==(const set<_Key, _Compare, _Allocator>& __lhs,
|
|
const set<_Key, _Compare, _Allocator>& __rhs)
|
|
{ return __lhs._M_base() == __rhs._M_base(); }
|
|
|
|
#if __cpp_lib_three_way_comparison
|
|
template<typename _Key, typename _Compare, typename _Alloc>
|
|
inline __detail::__synth3way_t<_Key>
|
|
operator<=>(const set<_Key, _Compare, _Alloc>& __lhs,
|
|
const set<_Key, _Compare, _Alloc>& __rhs)
|
|
{ return __lhs._M_base() <=> __rhs._M_base(); }
|
|
#else
|
|
template<typename _Key, typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator!=(const set<_Key, _Compare, _Allocator>& __lhs,
|
|
const set<_Key, _Compare, _Allocator>& __rhs)
|
|
{ return __lhs._M_base() != __rhs._M_base(); }
|
|
|
|
template<typename _Key, typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator<(const set<_Key, _Compare, _Allocator>& __lhs,
|
|
const set<_Key, _Compare, _Allocator>& __rhs)
|
|
{ return __lhs._M_base() < __rhs._M_base(); }
|
|
|
|
template<typename _Key, typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator<=(const set<_Key, _Compare, _Allocator>& __lhs,
|
|
const set<_Key, _Compare, _Allocator>& __rhs)
|
|
{ return __lhs._M_base() <= __rhs._M_base(); }
|
|
|
|
template<typename _Key, typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator>=(const set<_Key, _Compare, _Allocator>& __lhs,
|
|
const set<_Key, _Compare, _Allocator>& __rhs)
|
|
{ return __lhs._M_base() >= __rhs._M_base(); }
|
|
|
|
template<typename _Key, typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator>(const set<_Key, _Compare, _Allocator>& __lhs,
|
|
const set<_Key, _Compare, _Allocator>& __rhs)
|
|
{ return __lhs._M_base() > __rhs._M_base(); }
|
|
#endif // three-way comparison
|
|
|
|
template<typename _Key, typename _Compare, typename _Allocator>
|
|
void
|
|
swap(set<_Key, _Compare, _Allocator>& __x,
|
|
set<_Key, _Compare, _Allocator>& __y)
|
|
_GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y)))
|
|
{ return __x.swap(__y); }
|
|
|
|
} // namespace __debug
|
|
} // namespace std
|
|
|
|
#endif
|