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편집 파일: map.h

// Profiling map implementation -*- C++ -*- // Copyright (C) 2009-2018 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // <http://www.gnu.org/licenses/>. /** @file profile/map.h * This file is a GNU profile extension to the Standard C++ Library. */ #ifndef _GLIBCXX_PROFILE_MAP_H #define _GLIBCXX_PROFILE_MAP_H 1 #include <profile/base.h> #include <profile/ordered_base.h> namespace std _GLIBCXX_VISIBILITY(default) { namespace __profile { /// Class std::map wrapper with performance instrumentation. template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>, typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > > class map : public _GLIBCXX_STD_C::map<_Key, _Tp, _Compare, _Allocator>, public _Ordered_profile<map<_Key, _Tp, _Compare, _Allocator> > { typedef _GLIBCXX_STD_C::map<_Key, _Tp, _Compare, _Allocator> _Base; typedef typename _Base::iterator _Base_iterator; typedef typename _Base::const_iterator _Base_const_iterator; public: // types: typedef _Key key_type; typedef _Tp mapped_type; typedef typename _Base::value_type value_type; typedef _Compare key_compare; typedef typename _Base::reference reference; typedef typename _Base::const_reference const_reference; typedef __iterator_tracker<_Base_iterator, map> iterator; typedef __iterator_tracker<_Base_const_iterator, map> const_iterator; typedef std::reverse_iterator<iterator> reverse_iterator; typedef std::reverse_iterator<const_iterator> const_reverse_iterator; typedef typename _Base::size_type size_type; typedef typename _Base::difference_type difference_type; // 23.3.1.1 construct/copy/destroy: #if __cplusplus < 201103L map() : _Base() { } map(const map& __x) : _Base(__x) { } ~map() { } #else map() = default; map(const map&) = default; map(map&&) = default; ~map() = default; #endif explicit map(const _Compare& __comp, const _Allocator& __a = _Allocator()) : _Base(__comp, __a) { } #if __cplusplus >= 201103L template<typename _InputIterator, typename = std::_RequireInputIter<_InputIterator>> #else template<typename _InputIterator> #endif map(_InputIterator __first, _InputIterator __last, const _Compare& __comp = _Compare(), const _Allocator& __a = _Allocator()) : _Base(__first, __last, __comp, __a) { } map(const _Base& __x) : _Base(__x) { } #if __cplusplus >= 201103L map(initializer_list<value_type> __l, const _Compare& __c = _Compare(), const _Allocator& __a = _Allocator()) : _Base(__l, __c, __a) { } explicit map(const _Allocator& __a) : _Base(__a) { } map(const map& __x, const _Allocator& __a) : _Base(__x, __a) { } map(map&& __x, const _Allocator& __a) noexcept( noexcept(_Base(std::move(__x), __a)) ) : _Base(std::move(__x), __a) { } map(initializer_list<value_type> __l, const _Allocator& __a) : _Base(__l, __a) { } template<typename _InputIterator> map(_InputIterator __first, _InputIterator __last, const _Allocator& __a) : _Base(__first, __last, __a) { } #endif #if __cplusplus < 201103L map& operator=(const map& __x) { this->_M_profile_destruct(); _M_base() = __x; this->_M_profile_construct(); return *this; } #else map& operator=(const map&) = default; map& operator=(map&&) = default; map& operator=(initializer_list<value_type> __l) { this->_M_profile_destruct(); _M_base() = __l; this->_M_profile_construct(); return *this; } #endif // iterators iterator begin() _GLIBCXX_NOEXCEPT { return iterator(_Base::begin(), this); } const_iterator begin() const _GLIBCXX_NOEXCEPT { return const_iterator(_Base::begin(), this); } iterator end() _GLIBCXX_NOEXCEPT { return iterator(_Base::end(), this); } const_iterator end() const _GLIBCXX_NOEXCEPT { return const_iterator(_Base::end(), this); } #if __cplusplus >= 201103L const_iterator cbegin() const noexcept { return const_iterator(_Base::cbegin(), this); } const_iterator cend() const noexcept { return const_iterator(_Base::cend(), this); } #endif reverse_iterator rbegin() _GLIBCXX_NOEXCEPT { __profcxx_map2umap_invalidate(this->_M_map2umap_info); return reverse_iterator(end()); } const_reverse_iterator rbegin() const _GLIBCXX_NOEXCEPT { __profcxx_map2umap_invalidate(this->_M_map2umap_info); return const_reverse_iterator(end()); } reverse_iterator rend() _GLIBCXX_NOEXCEPT { __profcxx_map2umap_invalidate(this->_M_map2umap_info); return reverse_iterator(begin()); } const_reverse_iterator rend() const _GLIBCXX_NOEXCEPT { __profcxx_map2umap_invalidate(this->_M_map2umap_info); return const_reverse_iterator(begin()); } #if __cplusplus >= 201103L const_reverse_iterator crbegin() const noexcept { __profcxx_map2umap_invalidate(this->_M_map2umap_info); return const_reverse_iterator(cend()); } const_reverse_iterator crend() const noexcept { __profcxx_map2umap_invalidate(this->_M_map2umap_info); return const_reverse_iterator(cbegin()); } #endif // 23.3.1.2 element access: mapped_type& operator[](const key_type& __k) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return _Base::operator[](__k); } #if __cplusplus >= 201103L mapped_type& operator[](key_type&& __k) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return _Base::operator[](std::move(__k)); } #endif mapped_type& at(const key_type& __k) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return _Base::at(__k); } const mapped_type& at(const key_type& __k) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return _Base::at(__k); } // modifiers: #if __cplusplus >= 201103L template<typename... _Args> std::pair<iterator, bool> emplace(_Args&&... __args) { // The cost is the same whether or not the element is inserted so we // always report insertion of 1 element. __profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1); auto __base_ret = _Base::emplace(std::forward<_Args>(__args)...); return std::make_pair(iterator(__base_ret.first, this), __base_ret.second); } template<typename... _Args> iterator emplace_hint(const_iterator __pos, _Args&&... __args) { auto size_before = this->size(); auto __res = _Base::emplace_hint(__pos.base(), std::forward<_Args>(__args)...); __profcxx_map2umap_insert(this->_M_map2umap_info, size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1); return iterator(__res, this); } #endif std::pair<iterator, bool> insert(const value_type& __x) { __profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1); std::pair<_Base_iterator, bool> __base_ret = _Base::insert(__x); return std::make_pair(iterator(__base_ret.first, this), __base_ret.second); } #if __cplusplus >= 201103L template<typename _Pair, typename = typename std::enable_if<std::is_constructible<value_type, _Pair&&>::value>::type> std::pair<iterator, bool> insert(_Pair&& __x) { __profcxx_map2umap_insert(this->_M_map2umap_info, this->size(), 1); auto __base_ret= _Base::insert(std::forward<_Pair>(__x)); return std::make_pair(iterator(__base_ret.first, this), __base_ret.second); } #endif #if __cplusplus >= 201103L void insert(std::initializer_list<value_type> __list) { insert(__list.begin(), __list.end()); } #endif iterator #if __cplusplus >= 201103L insert(const_iterator __pos, const value_type& __x) #else insert(iterator __pos, const value_type& __x) #endif { size_type size_before = this->size(); _Base_iterator __res = _Base::insert(__pos.base(), __x); __profcxx_map2umap_insert(this->_M_map2umap_info, size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1); return iterator(__res, this); } #if __cplusplus >= 201103L template<typename _Pair, typename = typename std::enable_if<std::is_constructible<value_type, _Pair&&>::value>::type> iterator insert(const_iterator __pos, _Pair&& __x) { size_type size_before = this->size(); auto __res = _Base::insert(__pos.base(), std::forward<_Pair>(__x)); __profcxx_map2umap_insert(this->_M_map2umap_info, size_before, _M_hint_used(__pos.base(), __res) ? 0 : 1); return iterator(__res, this); } #endif template<typename _InputIterator> void insert(_InputIterator __first, _InputIterator __last) { for (; __first != __last; ++__first) insert(*__first); } #if __cplusplus >= 201103L iterator erase(const_iterator __pos) { __profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1); return iterator(_Base::erase(__pos.base()), this); } iterator erase(iterator __pos) { __profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1); return iterator(_Base::erase(__pos.base()), this); } #else void erase(iterator __pos) { __profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1); _Base::erase(__pos.base()); } #endif size_type erase(const key_type& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_erase(this->_M_map2umap_info, this->size(), 1); return _Base::erase(__x); } #if __cplusplus >= 201103L iterator erase(const_iterator __first, const_iterator __last) { if (__first != __last) { iterator __ret; for (; __first != __last;) __ret = erase(__first++); return __ret; } else return iterator(_Base::erase(__first.base(), __last.base()), this); } #else void erase(iterator __first, iterator __last) { for (; __first != __last;) erase(__first++); } #endif void swap(map& __x) _GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) ) { _Base::swap(__x); this->_M_swap(__x); } void clear() _GLIBCXX_NOEXCEPT { this->_M_profile_destruct(); _Base::clear(); this->_M_profile_construct(); } // 23.3.1.3 map operations: iterator find(const key_type& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return iterator(_Base::find(__x), this); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> iterator find(const _Kt& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return { _Base::find(__x), this }; } #endif const_iterator find(const key_type& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return const_iterator(_Base::find(__x), this); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> const_iterator find(const _Kt& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return { _Base::find(__x), this }; } #endif size_type count(const key_type& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return _Base::count(__x); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> size_type count(const _Kt& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); return _Base::count(__x); } #endif iterator lower_bound(const key_type& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return iterator(_Base::lower_bound(__x), this); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> iterator lower_bound(const _Kt& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return { _Base::lower_bound(__x), this }; } #endif const_iterator lower_bound(const key_type& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return const_iterator(_Base::lower_bound(__x), this); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> const_iterator lower_bound(const _Kt& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return { _Base::lower_bound(__x), this }; } #endif iterator upper_bound(const key_type& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return iterator(_Base::upper_bound(__x), this); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> iterator upper_bound(const _Kt& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return { _Base::upper_bound(__x), this }; } #endif const_iterator upper_bound(const key_type& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return const_iterator(_Base::upper_bound(__x), this); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> const_iterator upper_bound(const _Kt& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); __profcxx_map2umap_invalidate(this->_M_map2umap_info); return { _Base::upper_bound(__x), this }; } #endif std::pair<iterator,iterator> equal_range(const key_type& __x) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); std::pair<_Base_iterator, _Base_iterator> __base_ret = _Base::equal_range(__x); return std::make_pair(iterator(__base_ret.first, this), iterator(__base_ret.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) { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); auto __res = _Base::equal_range(__x); return { { __res.first, this }, { __res.second, this } }; } #endif std::pair<const_iterator,const_iterator> equal_range(const key_type& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); std::pair<_Base_const_iterator, _Base_const_iterator> __base_ret = _Base::equal_range(__x); return std::make_pair(const_iterator(__base_ret.first, this), const_iterator(__base_ret.second, this)); } #if __cplusplus > 201103L template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> std::pair<const_iterator, const_iterator> equal_range(const _Kt& __x) const { __profcxx_map2umap_find(this->_M_map2umap_info, this->size()); 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; } private: /** If hint is used we consider that the map and unordered_map * operations have equivalent insertion cost so we do not update metrics * about it. * Note that to find out if hint has been used is libstdc++ * implementation dependent. */ bool _M_hint_used(_Base_const_iterator __hint, _Base_iterator __res) { return (__hint == __res || (__hint == _M_base().end() && ++__res == _M_base().end()) || (__hint != _M_base().end() && (++__hint == __res || ++__res == --__hint))); } 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 _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) _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs))) { __lhs.swap(__rhs); } } // namespace __profile } // namespace std #endif