461 lines
13 KiB
C++
461 lines
13 KiB
C++
// Debugging multiset implementation -*- C++ -*-
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// Copyright (C) 2003-2013 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/multiset.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_MULTISET_H
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#define _GLIBCXX_DEBUG_MULTISET_H 1
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#include <debug/safe_sequence.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::multiset 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 multiset
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: public _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator>,
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public __gnu_debug::_Safe_sequence<multiset<_Key, _Compare, _Allocator> >
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{
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typedef _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator> _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 __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
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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, multiset>
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iterator;
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typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,
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multiset> 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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explicit multiset(const _Compare& __comp = _Compare(),
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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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multiset(_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(__gnu_debug::__check_valid_range(__first,
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__last)),
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__gnu_debug::__base(__last),
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__comp, __a) { }
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multiset(const multiset& __x)
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: _Base(__x) { }
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multiset(const _Base& __x)
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: _Base(__x) { }
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#if __cplusplus >= 201103L
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multiset(multiset&& __x)
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noexcept(is_nothrow_copy_constructible<_Compare>::value)
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: _Base(std::move(__x))
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{ this->_M_swap(__x); }
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multiset(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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#endif
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~multiset() _GLIBCXX_NOEXCEPT { }
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multiset&
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operator=(const multiset& __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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#if __cplusplus >= 201103L
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multiset&
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operator=(multiset&& __x)
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{
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// NB: DR 1204.
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// NB: DR 675.
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__glibcxx_check_self_move_assign(__x);
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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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multiset&
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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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#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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iterator
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emplace(_Args&&... __args)
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{
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return iterator(_Base::emplace(std::forward<_Args>(__args)...), 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 __pos, _Args&&... __args)
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{
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__glibcxx_check_insert(__pos);
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return iterator(_Base::emplace_hint(__pos.base(),
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std::forward<_Args>(__args)...),
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this);
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}
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#endif
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iterator
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insert(const value_type& __x)
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{ return iterator(_Base::insert(__x), this); }
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#if __cplusplus >= 201103L
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iterator
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insert(value_type&& __x)
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{ return iterator(_Base::insert(std::move(__x)), this); }
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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 iterator(_Base::insert(__position.base(), std::move(__x)),
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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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__glibcxx_check_valid_range(__first, __last);
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_Base::insert(__gnu_debug::__base(__first),
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__gnu_debug::__base(__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 >= 201103L
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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 iterator(_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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std::pair<_Base_iterator, _Base_iterator> __victims =
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_Base::equal_range(__x);
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size_type __count = 0;
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_Base_iterator __victim = __victims.first;
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while (__victim != __victims.second)
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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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++__count;
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}
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return __count;
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}
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#if __cplusplus >= 201103L
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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::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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return iterator(_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(multiset& __x)
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{
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_Base::swap(__x);
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this->_M_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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// multiset 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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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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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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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),
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iterator(__res.second, this));
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}
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// _GLIBCXX_RESOLVE_LIB_DEFECTS
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// 214. set::find() missing const overload
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std::pair<const_iterator,const_iterator>
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equal_range(const key_type& __x) 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(__x);
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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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_Base&
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_M_base() _GLIBCXX_NOEXCEPT { return *this; }
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const _Base&
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_M_base() const _GLIBCXX_NOEXCEPT { return *this; }
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private:
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void
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_M_invalidate_all()
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{
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typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
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this->_M_invalidate_if(_Not_equal(_Base::end()));
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}
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};
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template<typename _Key, typename _Compare, typename _Allocator>
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inline bool
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operator==(const multiset<_Key, _Compare, _Allocator>& __lhs,
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const multiset<_Key, _Compare, _Allocator>& __rhs)
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{ return __lhs._M_base() == __rhs._M_base(); }
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template<typename _Key, typename _Compare, typename _Allocator>
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inline bool
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operator!=(const multiset<_Key, _Compare, _Allocator>& __lhs,
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const multiset<_Key, _Compare, _Allocator>& __rhs)
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{ return __lhs._M_base() != __rhs._M_base(); }
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template<typename _Key, typename _Compare, typename _Allocator>
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inline bool
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operator<(const multiset<_Key, _Compare, _Allocator>& __lhs,
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const multiset<_Key, _Compare, _Allocator>& __rhs)
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{ return __lhs._M_base() < __rhs._M_base(); }
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template<typename _Key, typename _Compare, typename _Allocator>
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inline bool
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operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs,
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const multiset<_Key, _Compare, _Allocator>& __rhs)
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{ return __lhs._M_base() <= __rhs._M_base(); }
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template<typename _Key, typename _Compare, typename _Allocator>
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inline bool
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operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs,
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const multiset<_Key, _Compare, _Allocator>& __rhs)
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{ return __lhs._M_base() >= __rhs._M_base(); }
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template<typename _Key, typename _Compare, typename _Allocator>
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inline bool
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operator>(const multiset<_Key, _Compare, _Allocator>& __lhs,
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const multiset<_Key, _Compare, _Allocator>& __rhs)
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{ return __lhs._M_base() > __rhs._M_base(); }
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template<typename _Key, typename _Compare, typename _Allocator>
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void
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swap(multiset<_Key, _Compare, _Allocator>& __x,
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multiset<_Key, _Compare, _Allocator>& __y)
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{ return __x.swap(__y); }
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} // namespace __debug
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} // namespace std
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#endif
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