Filename: //usr//include/c++/10/debug//set.h

// Debugging set implementation -*- C++ -*- // Copyright (C) 2003-2020 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 and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. /** @file debug/set.h * This file is a GNU debug extension to the Standard C++ Library. */ #ifndef _GLIBCXX_DEBUG_SET_H #define _GLIBCXX_DEBUG_SET_H 1 #include <debug/safe_sequence.h> #include <debug/safe_container.h> #include <debug/safe_iterator.h> #include <utility> namespace std _GLIBCXX_VISIBILITY(default) { namespace __debug { /// Class std::set with safety/checking/debug instrumentation. template<typename _Key, typename _Compare = std::less<_Key>, typename _Allocator = std::allocator<_Key> > class set : public __gnu_debug::_Safe_container< set<_Key, _Compare, _Allocator>, _Allocator, __gnu_debug::_Safe_node_sequence>, public _GLIBCXX_STD_C::set<_Key,_Compare,_Allocator> { typedef _GLIBCXX_STD_C::set<_Key, _Compare, _Allocator> _Base; typedef __gnu_debug::_Safe_container< set, _Allocator, __gnu_debug::_Safe_node_sequence> _Safe; typedef typename _Base::const_iterator _Base_const_iterator; typedef typename _Base::iterator _Base_iterator; typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal; template<typename _ItT, typename _SeqT, typename _CatT> friend class ::__gnu_debug::_Safe_iterator; public: // types: typedef _Key key_type; typedef _Key value_type; typedef _Compare key_compare; typedef _Compare value_compare; typedef _Allocator allocator_type; typedef typename _Base::reference reference; typedef typename _Base::const_reference const_reference; typedef __gnu_debug::_Safe_iterator<_Base_iterator, set> iterator; typedef __gnu_debug::_Safe_iterator<_Base_const_iterator, set> const_iterator; typedef typename _Base::size_type size_type; typedef typename _Base::difference_type difference_type; typedef typename _Base::pointer pointer; typedef typename _Base::const_pointer const_pointer; typedef std::reverse_iterator<iterator> reverse_iterator; typedef std::reverse_iterator<const_iterator> const_reverse_iterator; // 23.3.3.1 construct/copy/destroy: #if __cplusplus < 201103L set() : _Base() { } set(const set& __x) : _Base(__x) { } ~set() { } #else set() = default; set(const set&) = default; set(set&&) = default; set(initializer_list<value_type> __l, const _Compare& __comp = _Compare(), const allocator_type& __a = allocator_type()) : _Base(__l, __comp, __a) { } explicit set(const allocator_type& __a) : _Base(__a) { } set(const set& __x, const allocator_type& __a) : _Base(__x, __a) { } set(set&& __x, const allocator_type& __a) noexcept( noexcept(_Base(std::move(__x._M_base()), __a)) ) : _Safe(std::move(__x._M_safe()), __a), _Base(std::move(__x._M_base()), __a) { } set(initializer_list<value_type> __l, const allocator_type& __a) : _Base(__l, __a) { } template<typename _InputIterator> set(_InputIterator __first, _InputIterator __last, const allocator_type& __a) : _Base(__gnu_debug::__base( __glibcxx_check_valid_constructor_range(__first, __last)), __gnu_debug::__base(__last), __a) { } ~set() = default; #endif explicit set(const _Compare& __comp, const _Allocator& __a = _Allocator()) : _Base(__comp, __a) { } template<typename _InputIterator> set(_InputIterator __first, _InputIterator __last, const _Compare& __comp = _Compare(), const _Allocator& __a = _Allocator()) : _Base(__gnu_debug::__base( __glibcxx_check_valid_constructor_range(__first, __last)), __gnu_debug::__base(__last), __comp, __a) { } set(const _Base& __x) : _Base(__x) { } #if __cplusplus < 201103L set& operator=(const set& __x) { this->_M_safe() = __x; _M_base() = __x; return *this; } #else set& operator=(const set&) = default; set& operator=(set&&) = default; set& operator=(initializer_list<value_type> __l) { _M_base() = __l; this->_M_invalidate_all(); return *this; } #endif using _Base::get_allocator; // 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); } reverse_iterator rbegin() _GLIBCXX_NOEXCEPT { return reverse_iterator(end()); } const_reverse_iterator rbegin() const _GLIBCXX_NOEXCEPT { return const_reverse_iterator(end()); } reverse_iterator rend() _GLIBCXX_NOEXCEPT { return reverse_iterator(begin()); } const_reverse_iterator rend() const _GLIBCXX_NOEXCEPT { return const_reverse_iterator(begin()); } #if __cplusplus >= 201103L const_iterator cbegin() const noexcept { return const_iterator(_Base::begin(), this); } const_iterator cend() const noexcept { return const_iterator(_Base::end(), this); } const_reverse_iterator crbegin() const noexcept { return const_reverse_iterator(end()); } const_reverse_iterator crend() const noexcept { return const_reverse_iterator(begin()); } #endif // capacity: using _Base::empty; using _Base::size; using _Base::max_size; // modifiers: #if __cplusplus >= 201103L template<typename... _Args> std::pair<iterator, bool> emplace(_Args&&... __args) { auto __res = _Base::emplace(std::forward<_Args>(__args)...); return { { __res.first, this }, __res.second }; } template<typename... _Args> iterator emplace_hint(const_iterator __pos, _Args&&... __args) { __glibcxx_check_insert(__pos); return { _Base::emplace_hint(__pos.base(), std::forward<_Args>(__args)...), this }; } #endif std::pair<iterator, bool> insert(const value_type& __x) { std::pair<_Base_iterator, bool> __res = _Base::insert(__x); return std::pair<iterator, bool>(iterator(__res.first, this), __res.second); } #if __cplusplus >= 201103L std::pair<iterator, bool> insert(value_type&& __x) { auto __res = _Base::insert(std::move(__x)); return { { __res.first, this }, __res.second }; } #endif iterator insert(const_iterator __position, const value_type& __x) { __glibcxx_check_insert(__position); return iterator(_Base::insert(__position.base(), __x), this); } #if __cplusplus >= 201103L iterator insert(const_iterator __position, value_type&& __x) { __glibcxx_check_insert(__position); return { _Base::insert(__position.base(), std::move(__x)), this }; } #endif template <typename _InputIterator> void insert(_InputIterator __first, _InputIterator __last) { typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist; __glibcxx_check_valid_range2(__first, __last, __dist); if (__dist.second >= __gnu_debug::__dp_sign) _Base::insert(__gnu_debug::__unsafe(__first), __gnu_debug::__unsafe(__last)); else _Base::insert(__first, __last); } #if __cplusplus >= 201103L void insert(initializer_list<value_type> __l) { _Base::insert(__l); } #endif #if __cplusplus > 201402L using node_type = typename _Base::node_type; using insert_return_type = _Node_insert_return<iterator, node_type>; node_type extract(const_iterator __position) { __glibcxx_check_erase(__position); this->_M_invalidate_if(_Equal(__position.base())); return _Base::extract(__position.base()); } node_type extract(const key_type& __key) { const auto __position = find(__key); if (__position != end()) return extract(__position); return {}; } insert_return_type insert(node_type&& __nh) { auto __ret = _Base::insert(std::move(__nh)); iterator __pos = iterator(__ret.position, this); return { __pos, __ret.inserted, std::move(__ret.node) }; } iterator insert(const_iterator __hint, node_type&& __nh) { __glibcxx_check_insert(__hint); return { _Base::insert(__hint.base(), std::move(__nh)), this }; } using _Base::merge; #endif // C++17 #if __cplusplus >= 201103L _GLIBCXX_ABI_TAG_CXX11 iterator erase(const_iterator __position) { __glibcxx_check_erase(__position); this->_M_invalidate_if(_Equal(__position.base())); return { _Base::erase(__position.base()), this }; } #else void erase(iterator __position) { __glibcxx_check_erase(__position); this->_M_invalidate_if(_Equal(__position.base())); _Base::erase(__position.base()); } #endif size_type erase(const key_type& __x) { _Base_iterator __victim = _Base::find(__x); if (__victim == _Base::end()) return 0; else { this->_M_invalidate_if(_Equal(__victim)); _Base::erase(__victim); return 1; } } #if __cplusplus >= 201103L _GLIBCXX_ABI_TAG_CXX11 iterator erase(const_iterator __first, const_iterator __last) { // _GLIBCXX_RESOLVE_LIB_DEFECTS // 151. can't currently clear() empty container __glibcxx_check_erase_range(__first, __last); for (_Base_const_iterator __victim = __first.base(); __victim != __last.base(); ++__victim) { _GLIBCXX_DEBUG_VERIFY(__victim != _Base::cend(), _M_message(__gnu_debug::__msg_valid_range) ._M_iterator(__first, "first") ._M_iterator(__last, "last")); this->_M_invalidate_if(_Equal(__victim)); } return { _Base::erase(__first.base(), __last.base()), this }; } #else void erase(iterator __first, iterator __last) { // _GLIBCXX_RESOLVE_LIB_DEFECTS // 151. can't currently clear() empty container __glibcxx_check_erase_range(__first, __last); for (_Base_iterator __victim = __first.base(); __victim != __last.base(); ++__victim) { _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(), _M_message(__gnu_debug::__msg_valid_range) ._M_iterator(__first, "first") ._M_iterator(__last, "last")); this->_M_invalidate_if(_Equal(__victim)); } _Base::erase(__first.base(), __last.base()); } #endif void swap(set& __x) _GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) ) { _Safe::_M_swap(__x); _Base::swap(__x); } void clear() _GLIBCXX_NOEXCEPT { this->_M_invalidate_all(); _Base::clear(); } // observers: using _Base::key_comp; using _Base::value_comp; // set operations: iterator find(const key_type& __x) { return iterator(_Base::find(__x), this); } // _GLIBCXX_RESOLVE_LIB_DEFECTS // 214. set::find() missing const overload const_iterator find(const key_type& __x) const { return const_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) { return { _Base::find(__x), this }; } template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> const_iterator find(const _Kt& __x) const { return { _Base::find(__x), this }; } #endif using _Base::count; iterator lower_bound(const key_type& __x) { return iterator(_Base::lower_bound(__x), this); } // _GLIBCXX_RESOLVE_LIB_DEFECTS // 214. set::find() missing const overload const_iterator lower_bound(const key_type& __x) const { return const_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) { return { _Base::lower_bound(__x), this }; } template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> const_iterator lower_bound(const _Kt& __x) const { return { _Base::lower_bound(__x), this }; } #endif iterator upper_bound(const key_type& __x) { return iterator(_Base::upper_bound(__x), this); } // _GLIBCXX_RESOLVE_LIB_DEFECTS // 214. set::find() missing const overload const_iterator upper_bound(const key_type& __x) const { return const_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) { return { _Base::upper_bound(__x), this }; } template<typename _Kt, typename _Req = typename __has_is_transparent<_Compare, _Kt>::type> const_iterator upper_bound(const _Kt& __x) const { return { _Base::upper_bound(__x), this }; } #endif std::pair<iterator, iterator> equal_range(const key_type& __x) { std::pair<_Base_iterator, _Base_iterator> __res = _Base::equal_range(__x); 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

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