593 lines
17 KiB
C++
593 lines
17 KiB
C++
// Profiling map implementation -*- C++ -*-
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// Copyright (C) 2009-2015 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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//
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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 along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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/** @file profile/map.h
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* This file is a GNU profile extension to the Standard C++ Library.
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*/
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#ifndef _GLIBCXX_PROFILE_MAP_H
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#define _GLIBCXX_PROFILE_MAP_H 1
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#include <profile/base.h>
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#include <profile/ordered_base.h>
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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namespace __profile
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{
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/// Class std::map wrapper with performance instrumentation.
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template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>,
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typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > >
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class map
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: public _GLIBCXX_STD_C::map<_Key, _Tp, _Compare, _Allocator>,
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public _Ordered_profile<map<_Key, _Tp, _Compare, _Allocator> >
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{
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typedef _GLIBCXX_STD_C::map<_Key, _Tp, _Compare, _Allocator> _Base;
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typedef typename _Base::iterator _Base_iterator;
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typedef typename _Base::const_iterator _Base_const_iterator;
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public:
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// types:
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typedef _Key key_type;
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typedef _Tp mapped_type;
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typedef typename _Base::value_type value_type;
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typedef _Compare key_compare;
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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 __iterator_tracker<_Base_iterator, map> iterator;
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typedef __iterator_tracker<_Base_const_iterator,
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map> const_iterator;
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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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typedef typename _Base::size_type size_type;
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typedef typename _Base::difference_type difference_type;
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// 23.3.1.1 construct/copy/destroy:
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#if __cplusplus < 201103L
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map()
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: _Base() { }
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map(const map& __x)
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: _Base(__x) { }
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~map()
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{ }
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#else
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map() = default;
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map(const map&) = default;
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map(map&&) = default;
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~map() = default;
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#endif
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explicit
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map(const _Compare& __comp,
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const _Allocator& __a = _Allocator())
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: _Base(__comp, __a) { }
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#if __cplusplus >= 201103L
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template<typename _InputIterator,
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typename = std::_RequireInputIter<_InputIterator>>
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#else
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template<typename _InputIterator>
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#endif
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map(_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(__first, __last, __comp, __a) { }
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map(const _Base& __x)
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: _Base(__x) { }
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#if __cplusplus >= 201103L
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map(initializer_list<value_type> __l,
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const _Compare& __c = _Compare(),
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const _Allocator& __a = _Allocator())
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: _Base(__l, __c, __a) { }
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explicit
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map(const _Allocator& __a)
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: _Base(__a) { }
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map(const map& __x, const _Allocator& __a)
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: _Base(__x, __a) { }
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map(map&& __x, const _Allocator& __a)
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noexcept( noexcept(_Base(std::move(__x), __a)) )
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: _Base(std::move(__x), __a) { }
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map(initializer_list<value_type> __l, const _Allocator& __a)
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: _Base(__l, __a) { }
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template<typename _InputIterator>
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map(_InputIterator __first, _InputIterator __last,
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const _Allocator& __a)
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: _Base(__first, __last, __a) { }
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#endif
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#if __cplusplus < 201103L
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map&
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operator=(const map& __x)
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{
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this->_M_profile_destruct();
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_M_base() = __x;
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this->_M_profile_construct();
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return *this;
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}
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#else
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map&
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operator=(const map&) = default;
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map&
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operator=(map&&) = default;
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map&
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operator=(initializer_list<value_type> __l)
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{
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this->_M_profile_destruct();
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_M_base() = __l;
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this->_M_profile_construct();
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return *this;
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}
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#endif
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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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#if __cplusplus >= 201103L
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const_iterator
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cbegin() const noexcept
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{ return const_iterator(_Base::cbegin(), this); }
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const_iterator
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cend() const noexcept
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{ return const_iterator(_Base::cend(), this); }
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#endif
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reverse_iterator
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rbegin() _GLIBCXX_NOEXCEPT
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{
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return reverse_iterator(end());
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}
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const_reverse_iterator
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rbegin() const _GLIBCXX_NOEXCEPT
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{
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return const_reverse_iterator(end());
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}
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reverse_iterator
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rend() _GLIBCXX_NOEXCEPT
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{
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return reverse_iterator(begin());
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}
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const_reverse_iterator
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rend() const _GLIBCXX_NOEXCEPT
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{
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return const_reverse_iterator(begin());
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}
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#if __cplusplus >= 201103L
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const_reverse_iterator
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crbegin() const noexcept
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{
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return const_reverse_iterator(cend());
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}
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const_reverse_iterator
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crend() const noexcept
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{
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return const_reverse_iterator(cbegin());
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}
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#endif
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// 23.3.1.2 element access:
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mapped_type&
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operator[](const key_type& __k)
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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return _Base::operator[](__k);
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}
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#if __cplusplus >= 201103L
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mapped_type&
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operator[](key_type&& __k)
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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return _Base::operator[](std::move(__k));
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}
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#endif
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mapped_type&
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at(const key_type& __k)
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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return _Base::at(__k);
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}
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const mapped_type&
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at(const key_type& __k) const
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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return _Base::at(__k);
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}
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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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// The cost is the same whether or not the element is inserted so we
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// always report insertion of 1 element.
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__profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1);
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auto __base_ret = _Base::emplace(std::forward<_Args>(__args)...);
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return std::make_pair(iterator(__base_ret.first, this),
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__base_ret.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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auto size_before = this->size();
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auto __res
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= _Base::emplace_hint(__pos.base(), std::forward<_Args>(__args)...);
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__profcxx_map2umap_insert(this->_M_map2umap_info,
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size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1);
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return iterator(__res, this);
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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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__profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1);
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std::pair<_Base_iterator, bool> __base_ret = _Base::insert(__x);
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return std::make_pair(iterator(__base_ret.first, this),
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__base_ret.second);
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}
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#if __cplusplus >= 201103L
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template<typename _Pair, typename = typename
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std::enable_if<std::is_constructible<value_type,
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_Pair&&>::value>::type>
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std::pair<iterator, bool>
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insert(_Pair&& __x)
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{
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__profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1);
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auto __base_ret= _Base::insert(std::forward<_Pair>(__x));
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return std::make_pair(iterator(__base_ret.first, this),
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__base_ret.second);
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}
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#endif
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#if __cplusplus >= 201103L
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void
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insert(std::initializer_list<value_type> __list)
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{ insert(__list.begin(), __list.end()); }
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#endif
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iterator
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#if __cplusplus >= 201103L
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insert(const_iterator __pos, const value_type& __x)
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#else
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insert(iterator __pos, const value_type& __x)
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#endif
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{
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size_type size_before = this->size();
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_Base_iterator __res = _Base::insert(__pos.base(), __x);
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__profcxx_map2umap_insert(this->_M_map2umap_info,
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size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1);
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return iterator(__res, this);
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}
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#if __cplusplus >= 201103L
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template<typename _Pair, typename = typename
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std::enable_if<std::is_constructible<value_type,
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_Pair&&>::value>::type>
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iterator
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insert(const_iterator __pos, _Pair&& __x)
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{
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size_type size_before = this->size();
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auto __res = _Base::insert(__pos.base(), std::forward<_Pair>(__x));
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__profcxx_map2umap_insert(this->_M_map2umap_info,
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size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1);
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return iterator(__res, 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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for (; __first != __last; ++__first)
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insert(*__first);
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}
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#if __cplusplus >= 201103L
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iterator
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erase(const_iterator __pos)
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{
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__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
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return iterator(_Base::erase(__pos.base()), this);
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}
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iterator
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erase(iterator __pos)
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{
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__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
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return iterator(_Base::erase(__pos.base()), this);
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}
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#else
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void
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erase(iterator __pos)
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{
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__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
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_Base::erase(__pos.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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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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__profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1);
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return _Base::erase(__x);
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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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if (__first != __last)
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{
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iterator __ret;
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for (; __first != __last;)
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__ret = erase(__first++);
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return __ret;
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}
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else
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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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for (; __first != __last;)
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erase(__first++);
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}
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#endif
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void
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swap(map& __x)
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#if __cplusplus >= 201103L
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noexcept( noexcept(declval<_Base>().swap(__x)) )
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#endif
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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_profile_destruct();
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_Base::clear();
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this->_M_profile_construct();
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}
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// 23.3.1.3 map operations:
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iterator
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find(const key_type& __x)
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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return iterator(_Base::find(__x), this);
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}
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const_iterator
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find(const key_type& __x) const
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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return const_iterator(_Base::find(__x), this);
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}
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size_type
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count(const key_type& __x) const
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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return _Base::count(__x);
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}
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iterator
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lower_bound(const key_type& __x)
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return iterator(_Base::lower_bound(__x), this);
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}
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const_iterator
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lower_bound(const key_type& __x) const
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return const_iterator(_Base::lower_bound(__x), this);
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}
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iterator
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upper_bound(const key_type& __x)
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return iterator(_Base::upper_bound(__x), this);
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}
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const_iterator
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upper_bound(const key_type& __x) const
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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__profcxx_map2umap_invalidate(this->_M_map2umap_info);
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return const_iterator(_Base::upper_bound(__x), this);
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}
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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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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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std::pair<_Base_iterator, _Base_iterator> __base_ret
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= _Base::equal_range(__x);
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return std::make_pair(iterator(__base_ret.first, this),
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iterator(__base_ret.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& __x) const
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{
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__profcxx_map2umap_find(this->_M_map2umap_info, this->size());
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std::pair<_Base_const_iterator, _Base_const_iterator> __base_ret
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= _Base::equal_range(__x);
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return std::make_pair(const_iterator(__base_ret.first, this),
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const_iterator(__base_ret.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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/** If hint is used we consider that the map and unordered_map
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* operations have equivalent insertion cost so we do not update metrics
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* about it.
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* Note that to find out if hint has been used is libstdc++
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* implementation dependent.
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*/
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bool
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_M_hint_used(_Base_const_iterator __hint, _Base_iterator __res)
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{
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return (__hint == __res
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|| (__hint == _M_base().end() && ++__res == _M_base().end())
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|| (__hint != _M_base().end() && (++__hint == __res
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|| ++__res == --__hint)));
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}
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template<typename _K1, typename _T1, typename _C1, typename _A1>
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friend bool
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operator==(const map<_K1, _T1, _C1, _A1>&,
|
|
const map<_K1, _T1, _C1, _A1>&);
|
|
|
|
template<typename _K1, typename _T1, typename _C1, typename _A1>
|
|
friend bool
|
|
operator<(const map<_K1, _T1, _C1, _A1>&,
|
|
const map<_K1, _T1, _C1, _A1>&);
|
|
};
|
|
|
|
template<typename _Key, typename _Tp,
|
|
typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator==(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
|
|
const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
|
|
{
|
|
__profcxx_map2umap_invalidate(__lhs._M_map2umap_info);
|
|
__profcxx_map2umap_invalidate(__rhs._M_map2umap_info);
|
|
return __lhs._M_base() == __rhs._M_base();
|
|
}
|
|
|
|
template<typename _Key, typename _Tp,
|
|
typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator<(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
|
|
const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
|
|
{
|
|
__profcxx_map2umap_invalidate(__lhs._M_map2umap_info);
|
|
__profcxx_map2umap_invalidate(__rhs._M_map2umap_info);
|
|
return __lhs._M_base() < __rhs._M_base();
|
|
}
|
|
|
|
template<typename _Key, typename _Tp,
|
|
typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator!=(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
|
|
const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
|
|
{ return !(__lhs == __rhs); }
|
|
|
|
template<typename _Key, typename _Tp,
|
|
typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator<=(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
|
|
const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
|
|
{ return !(__rhs < __lhs); }
|
|
|
|
template<typename _Key, typename _Tp,
|
|
typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator>=(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
|
|
const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
|
|
{ return !(__lhs < __rhs); }
|
|
|
|
template<typename _Key, typename _Tp,
|
|
typename _Compare, typename _Allocator>
|
|
inline bool
|
|
operator>(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
|
|
const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
|
|
{ return __rhs < __lhs; }
|
|
|
|
template<typename _Key, typename _Tp,
|
|
typename _Compare, typename _Allocator>
|
|
inline void
|
|
swap(map<_Key, _Tp, _Compare, _Allocator>& __lhs,
|
|
map<_Key, _Tp, _Compare, _Allocator>& __rhs)
|
|
{ __lhs.swap(__rhs); }
|
|
|
|
} // namespace __profile
|
|
} // namespace std
|
|
|
|
#endif
|