// Debugging vector implementation -*- C++ -*- // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 // 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 // . /** @file debug/vector * This file is a GNU debug extension to the Standard C++ Library. */ #ifndef _GLIBCXX_DEBUG_VECTOR #define _GLIBCXX_DEBUG_VECTOR 1 #include #include #include #include namespace std { namespace __debug { /// Class std::vector with safety/checking/debug instrumentation. template > class vector : public _GLIBCXX_STD_D::vector<_Tp, _Allocator>, public __gnu_debug::_Safe_sequence > { typedef _GLIBCXX_STD_D::vector<_Tp, _Allocator> _Base; typedef __gnu_debug::_Safe_sequence _Safe_base; typedef typename _Base::const_iterator _Base_const_iterator; typedef __gnu_debug::_After_nth_from<_Base_const_iterator> _After_nth; public: typedef typename _Base::reference reference; typedef typename _Base::const_reference const_reference; typedef __gnu_debug::_Safe_iterator iterator; typedef __gnu_debug::_Safe_iterator const_iterator; typedef typename _Base::size_type size_type; typedef typename _Base::difference_type difference_type; typedef _Tp value_type; typedef _Allocator allocator_type; typedef typename _Base::pointer pointer; typedef typename _Base::const_pointer const_pointer; typedef std::reverse_iterator reverse_iterator; typedef std::reverse_iterator const_reverse_iterator; // 23.2.4.1 construct/copy/destroy: explicit vector(const _Allocator& __a = _Allocator()) : _Base(__a), _M_guaranteed_capacity(0) { } #ifdef __GXX_EXPERIMENTAL_CXX0X__ explicit vector(size_type __n) : _Base(__n), _M_guaranteed_capacity(__n) { } vector(size_type __n, const _Tp& __value, const _Allocator& __a = _Allocator()) : _Base(__n, __value, __a), _M_guaranteed_capacity(__n) { } #else explicit vector(size_type __n, const _Tp& __value = _Tp(), const _Allocator& __a = _Allocator()) : _Base(__n, __value, __a), _M_guaranteed_capacity(__n) { } #endif template vector(_InputIterator __first, _InputIterator __last, const _Allocator& __a = _Allocator()) : _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first, __last)), __gnu_debug::__base(__last), __a), _M_guaranteed_capacity(0) { _M_update_guaranteed_capacity(); } vector(const vector& __x) : _Base(__x), _Safe_base(), _M_guaranteed_capacity(__x.size()) { } /// Construction from a release-mode vector vector(const _Base& __x) : _Base(__x), _Safe_base(), _M_guaranteed_capacity(__x.size()) { } #ifdef __GXX_EXPERIMENTAL_CXX0X__ vector(vector&& __x) : _Base(std::move(__x)), _Safe_base(), _M_guaranteed_capacity(this->size()) { this->_M_swap(__x); __x._M_guaranteed_capacity = 0; } vector(initializer_list __l, const allocator_type& __a = allocator_type()) : _Base(__l, __a), _Safe_base(), _M_guaranteed_capacity(__l.size()) { } #endif ~vector() { } vector& operator=(const vector& __x) { static_cast<_Base&>(*this) = __x; this->_M_invalidate_all(); _M_update_guaranteed_capacity(); return *this; } #ifdef __GXX_EXPERIMENTAL_CXX0X__ vector& operator=(vector&& __x) { // NB: DR 1204. // NB: DR 675. clear(); swap(__x); return *this; } vector& operator=(initializer_list __l) { static_cast<_Base&>(*this) = __l; this->_M_invalidate_all(); _M_update_guaranteed_capacity(); return *this; } #endif template void assign(_InputIterator __first, _InputIterator __last) { __glibcxx_check_valid_range(__first, __last); _Base::assign(__gnu_debug::__base(__first), __gnu_debug::__base(__last)); this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } void assign(size_type __n, const _Tp& __u) { _Base::assign(__n, __u); this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } #ifdef __GXX_EXPERIMENTAL_CXX0X__ void assign(initializer_list __l) { _Base::assign(__l); this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } #endif using _Base::get_allocator; // iterators: iterator begin() { return iterator(_Base::begin(), this); } const_iterator begin() const { return const_iterator(_Base::begin(), this); } iterator end() { return iterator(_Base::end(), this); } const_iterator end() const { return const_iterator(_Base::end(), this); } reverse_iterator rbegin() { return reverse_iterator(end()); } const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); } reverse_iterator rend() { return reverse_iterator(begin()); } const_reverse_iterator rend() const { return const_reverse_iterator(begin()); } #ifdef __GXX_EXPERIMENTAL_CXX0X__ const_iterator cbegin() const { return const_iterator(_Base::begin(), this); } const_iterator cend() const { return const_iterator(_Base::end(), this); } const_reverse_iterator crbegin() const { return const_reverse_iterator(end()); } const_reverse_iterator crend() const { return const_reverse_iterator(begin()); } #endif // 23.2.4.2 capacity: using _Base::size; using _Base::max_size; #ifdef __GXX_EXPERIMENTAL_CXX0X__ void resize(size_type __sz) { bool __realloc = _M_requires_reallocation(__sz); if (__sz < this->size()) this->_M_invalidate_if(_After_nth(__sz, _M_base().begin())); _Base::resize(__sz); if (__realloc) this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } void resize(size_type __sz, const _Tp& __c) { bool __realloc = _M_requires_reallocation(__sz); if (__sz < this->size()) this->_M_invalidate_if(_After_nth(__sz, _M_base().begin())); _Base::resize(__sz, __c); if (__realloc) this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } #else void resize(size_type __sz, _Tp __c = _Tp()) { bool __realloc = _M_requires_reallocation(__sz); if (__sz < this->size()) this->_M_invalidate_if(_After_nth(__sz, _M_base().begin())); _Base::resize(__sz, __c); if (__realloc) this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } #endif #ifdef __GXX_EXPERIMENTAL_CXX0X__ using _Base::shrink_to_fit; #endif size_type capacity() const { #ifdef _GLIBCXX_DEBUG_PEDANTIC return _M_guaranteed_capacity; #else return _Base::capacity(); #endif } using _Base::empty; void reserve(size_type __n) { bool __realloc = _M_requires_reallocation(__n); _Base::reserve(__n); if (__n > _M_guaranteed_capacity) _M_guaranteed_capacity = __n; if (__realloc) this->_M_invalidate_all(); } // element access: reference operator[](size_type __n) { __glibcxx_check_subscript(__n); return _M_base()[__n]; } const_reference operator[](size_type __n) const { __glibcxx_check_subscript(__n); return _M_base()[__n]; } using _Base::at; reference front() { __glibcxx_check_nonempty(); return _Base::front(); } const_reference front() const { __glibcxx_check_nonempty(); return _Base::front(); } reference back() { __glibcxx_check_nonempty(); return _Base::back(); } const_reference back() const { __glibcxx_check_nonempty(); return _Base::back(); } // _GLIBCXX_RESOLVE_LIB_DEFECTS // DR 464. Suggestion for new member functions in standard containers. using _Base::data; // 23.2.4.3 modifiers: void push_back(const _Tp& __x) { bool __realloc = _M_requires_reallocation(this->size() + 1); _Base::push_back(__x); if (__realloc) this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } #ifdef __GXX_EXPERIMENTAL_CXX0X__ template typename __gnu_cxx::__enable_if::__value, void>::__type push_back(_Tp&& __x) { emplace_back(std::move(__x)); } template void emplace_back(_Args&&... __args) { bool __realloc = _M_requires_reallocation(this->size() + 1); _Base::emplace_back(std::forward<_Args>(__args)...); if (__realloc) this->_M_invalidate_all(); _M_update_guaranteed_capacity(); } #endif void pop_back() { __glibcxx_check_nonempty(); iterator __victim = end() - 1; __victim._M_invalidate(); _Base::pop_back(); } #ifdef __GXX_EXPERIMENTAL_CXX0X__ template iterator emplace(iterator __position, _Args&&... __args) { __glibcxx_check_insert(__position); bool __realloc = _M_requires_reallocation(this->size() + 1); difference_type __offset = __position - begin(); typename _Base::iterator __res = _Base::emplace(__position.base(), std::forward<_Args>(__args)...); if (__realloc) this->_M_invalidate_all(); else this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); _M_update_guaranteed_capacity(); return iterator(__res, this); } #endif iterator insert(iterator __position, const _Tp& __x) { __glibcxx_check_insert(__position); bool __realloc = _M_requires_reallocation(this->size() + 1); difference_type __offset = __position - begin(); typename _Base::iterator __res = _Base::insert(__position.base(),__x); if (__realloc) this->_M_invalidate_all(); else this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); _M_update_guaranteed_capacity(); return iterator(__res, this); } #ifdef __GXX_EXPERIMENTAL_CXX0X__ template typename __gnu_cxx::__enable_if::__value, iterator>::__type insert(iterator __position, _Tp&& __x) { return emplace(__position, std::move(__x)); } void insert(iterator __position, initializer_list __l) { this->insert(__position, __l.begin(), __l.end()); } #endif void insert(iterator __position, size_type __n, const _Tp& __x) { __glibcxx_check_insert(__position); bool __realloc = _M_requires_reallocation(this->size() + __n); difference_type __offset = __position - begin(); _Base::insert(__position.base(), __n, __x); if (__realloc) this->_M_invalidate_all(); else this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); _M_update_guaranteed_capacity(); } template void insert(iterator __position, _InputIterator __first, _InputIterator __last) { __glibcxx_check_insert_range(__position, __first, __last); /* Hard to guess if invalidation will occur, because __last - __first can't be calculated in all cases, so we just punt here by checking if it did occur. */ typename _Base::iterator __old_begin = _M_base().begin(); difference_type __offset = __position - begin(); _Base::insert(__position.base(), __gnu_debug::__base(__first), __gnu_debug::__base(__last)); if (_M_base().begin() != __old_begin) this->_M_invalidate_all(); else this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); _M_update_guaranteed_capacity(); } iterator erase(iterator __position) { __glibcxx_check_erase(__position); difference_type __offset = __position - begin(); typename _Base::iterator __res = _Base::erase(__position.base()); this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); return iterator(__res, this); } iterator erase(iterator __first, iterator __last) { // _GLIBCXX_RESOLVE_LIB_DEFECTS // 151. can't currently clear() empty container __glibcxx_check_erase_range(__first, __last); difference_type __offset = __first - begin(); typename _Base::iterator __res = _Base::erase(__first.base(), __last.base()); this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); return iterator(__res, this); } void swap(vector& __x) { _Base::swap(__x); this->_M_swap(__x); std::swap(_M_guaranteed_capacity, __x._M_guaranteed_capacity); } void clear() { _Base::clear(); this->_M_invalidate_all(); _M_guaranteed_capacity = 0; } _Base& _M_base() { return *this; } const _Base& _M_base() const { return *this; } private: size_type _M_guaranteed_capacity; bool _M_requires_reallocation(size_type __elements) { return __elements > this->capacity(); } void _M_update_guaranteed_capacity() { if (this->size() > _M_guaranteed_capacity) _M_guaranteed_capacity = this->size(); } }; template inline bool operator==(const vector<_Tp, _Alloc>& __lhs, const vector<_Tp, _Alloc>& __rhs) { return __lhs._M_base() == __rhs._M_base(); } template inline bool operator!=(const vector<_Tp, _Alloc>& __lhs, const vector<_Tp, _Alloc>& __rhs) { return __lhs._M_base() != __rhs._M_base(); } template inline bool operator<(const vector<_Tp, _Alloc>& __lhs, const vector<_Tp, _Alloc>& __rhs) { return __lhs._M_base() < __rhs._M_base(); } template inline bool operator<=(const vector<_Tp, _Alloc>& __lhs, const vector<_Tp, _Alloc>& __rhs) { return __lhs._M_base() <= __rhs._M_base(); } template inline bool operator>=(const vector<_Tp, _Alloc>& __lhs, const vector<_Tp, _Alloc>& __rhs) { return __lhs._M_base() >= __rhs._M_base(); } template inline bool operator>(const vector<_Tp, _Alloc>& __lhs, const vector<_Tp, _Alloc>& __rhs) { return __lhs._M_base() > __rhs._M_base(); } template inline void swap(vector<_Tp, _Alloc>& __lhs, vector<_Tp, _Alloc>& __rhs) { __lhs.swap(__rhs); } } // namespace __debug #ifdef __GXX_EXPERIMENTAL_CXX0X__ // DR 1182. /// std::hash specialization for vector. template struct hash<__debug::vector> : public std::unary_function<__debug::vector, size_t> { size_t operator()(const __debug::vector& __b) const { return std::hash<_GLIBCXX_STD_D::vector>() (__b._M_base()); } }; #endif } // namespace std #endif