vector revision 132720
1132720Skan// Debugging vector implementation -*- C++ -*- 2132720Skan 3132720Skan// Copyright (C) 2003, 2004 4132720Skan// Free Software Foundation, Inc. 5132720Skan// 6132720Skan// This file is part of the GNU ISO C++ Library. This library is free 7132720Skan// software; you can redistribute it and/or modify it under the 8132720Skan// terms of the GNU General Public License as published by the 9132720Skan// Free Software Foundation; either version 2, or (at your option) 10132720Skan// any later version. 11132720Skan 12132720Skan// This library is distributed in the hope that it will be useful, 13132720Skan// but WITHOUT ANY WARRANTY; without even the implied warranty of 14132720Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15132720Skan// GNU General Public License for more details. 16132720Skan 17132720Skan// You should have received a copy of the GNU General Public License along 18132720Skan// with this library; see the file COPYING. If not, write to the Free 19132720Skan// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 20132720Skan// USA. 21132720Skan 22132720Skan// As a special exception, you may use this file as part of a free software 23132720Skan// library without restriction. Specifically, if other files instantiate 24132720Skan// templates or use macros or inline functions from this file, or you compile 25132720Skan// this file and link it with other files to produce an executable, this 26132720Skan// file does not by itself cause the resulting executable to be covered by 27132720Skan// the GNU General Public License. This exception does not however 28132720Skan// invalidate any other reasons why the executable file might be covered by 29132720Skan// the GNU General Public License. 30132720Skan 31132720Skan#ifndef _GLIBCXX_DEBUG_VECTOR 32132720Skan#define _GLIBCXX_DEBUG_VECTOR 1 33132720Skan 34132720Skan#include <vector> 35132720Skan#include <debug/safe_sequence.h> 36132720Skan#include <debug/safe_iterator.h> 37132720Skan#include <utility> 38132720Skan 39132720Skannamespace __gnu_debug_def 40132720Skan{ 41132720Skan template<typename _Tp, 42132720Skan typename _Allocator = std::allocator<_Tp> > 43132720Skan class vector 44132720Skan : public _GLIBCXX_STD::vector<_Tp, _Allocator>, 45132720Skan public __gnu_debug::_Safe_sequence<vector<_Tp, _Allocator> > 46132720Skan { 47132720Skan typedef _GLIBCXX_STD::vector<_Tp, _Allocator> _Base; 48132720Skan typedef __gnu_debug::_Safe_sequence<vector> _Safe_base; 49132720Skan 50132720Skan typedef typename _Base::const_iterator _Base_const_iterator; 51132720Skan typedef __gnu_debug::_After_nth_from<_Base_const_iterator> _After_nth; 52132720Skan 53132720Skan public: 54132720Skan typedef typename _Base::reference reference; 55132720Skan typedef typename _Base::const_reference const_reference; 56132720Skan 57132720Skan typedef __gnu_debug::_Safe_iterator<typename _Base::iterator,vector> 58132720Skan iterator; 59132720Skan typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,vector> 60132720Skan const_iterator; 61132720Skan 62132720Skan typedef typename _Base::size_type size_type; 63132720Skan typedef typename _Base::difference_type difference_type; 64132720Skan 65132720Skan typedef _Tp value_type; 66132720Skan typedef _Allocator allocator_type; 67132720Skan typedef typename _Allocator::pointer pointer; 68132720Skan typedef typename _Allocator::const_pointer const_pointer; 69132720Skan typedef std::reverse_iterator<iterator> reverse_iterator; 70132720Skan typedef std::reverse_iterator<const_iterator> const_reverse_iterator; 71132720Skan 72132720Skan // 23.2.4.1 construct/copy/destroy: 73132720Skan explicit vector(const _Allocator& __a = _Allocator()) 74132720Skan : _Base(__a), _M_guaranteed_capacity(0) { } 75132720Skan 76132720Skan explicit vector(size_type __n, const _Tp& __value = _Tp(), 77132720Skan const _Allocator& __a = _Allocator()) 78132720Skan : _Base(__n, __value, __a), _M_guaranteed_capacity(__n) { } 79132720Skan 80132720Skan template<class _InputIterator> 81132720Skan vector(_InputIterator __first, _InputIterator __last, 82132720Skan const _Allocator& __a = _Allocator()) 83132720Skan : _Base(__gnu_debug::__check_valid_range(__first, __last), 84132720Skan __last, __a), 85132720Skan _M_guaranteed_capacity(0) 86132720Skan { _M_update_guaranteed_capacity(); } 87132720Skan 88132720Skan vector(const vector<_Tp,_Allocator>& __x) 89132720Skan : _Base(__x), _Safe_base(), _M_guaranteed_capacity(__x.size()) { } 90132720Skan 91132720Skan /// Construction from a release-mode vector 92132720Skan vector(const _Base& __x) 93132720Skan : _Base(__x), _Safe_base(), _M_guaranteed_capacity(__x.size()) { } 94132720Skan 95132720Skan ~vector() { } 96132720Skan 97132720Skan vector<_Tp,_Allocator>& 98132720Skan operator=(const vector<_Tp,_Allocator>& __x) 99132720Skan { 100132720Skan static_cast<_Base&>(*this) = __x; 101132720Skan this->_M_invalidate_all(); 102132720Skan _M_update_guaranteed_capacity(); 103132720Skan return *this; 104132720Skan } 105132720Skan 106132720Skan template<typename _InputIterator> 107132720Skan void 108132720Skan assign(_InputIterator __first, _InputIterator __last) 109132720Skan { 110132720Skan __glibcxx_check_valid_range(__first, __last); 111132720Skan _Base::assign(__first, __last); 112132720Skan this->_M_invalidate_all(); 113132720Skan _M_update_guaranteed_capacity(); 114132720Skan } 115132720Skan 116132720Skan void 117132720Skan assign(size_type __n, const _Tp& __u) 118132720Skan { 119132720Skan _Base::assign(__n, __u); 120132720Skan this->_M_invalidate_all(); 121132720Skan _M_update_guaranteed_capacity(); 122132720Skan } 123132720Skan 124132720Skan using _Base::get_allocator; 125132720Skan 126132720Skan // iterators: 127132720Skan iterator 128132720Skan begin() 129132720Skan { return iterator(_Base::begin(), this); } 130132720Skan 131132720Skan const_iterator 132132720Skan begin() const 133132720Skan { return const_iterator(_Base::begin(), this); } 134132720Skan 135132720Skan iterator 136132720Skan end() 137132720Skan { return iterator(_Base::end(), this); } 138132720Skan 139132720Skan const_iterator 140132720Skan end() const 141132720Skan { return const_iterator(_Base::end(), this); } 142132720Skan 143132720Skan reverse_iterator 144132720Skan rbegin() 145132720Skan { return reverse_iterator(end()); } 146132720Skan 147132720Skan const_reverse_iterator 148132720Skan rbegin() const 149132720Skan { return const_reverse_iterator(end()); } 150132720Skan 151132720Skan reverse_iterator 152132720Skan rend() 153132720Skan { return reverse_iterator(begin()); } 154132720Skan 155132720Skan const_reverse_iterator 156132720Skan rend() const 157132720Skan { return const_reverse_iterator(begin()); } 158132720Skan 159132720Skan // 23.2.4.2 capacity: 160132720Skan using _Base::size; 161132720Skan using _Base::max_size; 162132720Skan 163132720Skan void 164132720Skan resize(size_type __sz, _Tp __c = _Tp()) 165132720Skan { 166132720Skan bool __realloc = _M_requires_reallocation(__sz); 167132720Skan if (__sz < this->size()) 168132720Skan this->_M_invalidate_if(_After_nth(__sz, _M_base().begin())); 169132720Skan _Base::resize(__sz, __c); 170132720Skan if (__realloc) 171132720Skan this->_M_invalidate_all(); 172132720Skan } 173132720Skan 174132720Skan using _Base::capacity; 175132720Skan using _Base::empty; 176132720Skan 177132720Skan void 178132720Skan reserve(size_type __n) 179132720Skan { 180132720Skan bool __realloc = _M_requires_reallocation(__n); 181132720Skan _Base::reserve(__n); 182132720Skan if (__n > _M_guaranteed_capacity) 183132720Skan _M_guaranteed_capacity = __n; 184132720Skan if (__realloc) 185132720Skan this->_M_invalidate_all(); 186132720Skan } 187132720Skan 188132720Skan // element access: 189132720Skan reference 190132720Skan operator[](size_type __n) 191132720Skan { 192132720Skan __glibcxx_check_subscript(__n); 193132720Skan return _M_base()[__n]; 194132720Skan } 195132720Skan 196132720Skan const_reference 197132720Skan operator[](size_type __n) const 198132720Skan { 199132720Skan __glibcxx_check_subscript(__n); 200132720Skan return _M_base()[__n]; 201132720Skan } 202132720Skan 203132720Skan using _Base::at; 204132720Skan 205132720Skan reference 206132720Skan front() 207132720Skan { 208132720Skan __glibcxx_check_nonempty(); 209132720Skan return _Base::front(); 210132720Skan } 211132720Skan 212132720Skan const_reference 213132720Skan front() const 214132720Skan { 215132720Skan __glibcxx_check_nonempty(); 216132720Skan return _Base::front(); 217132720Skan } 218132720Skan 219132720Skan reference 220132720Skan back() 221132720Skan { 222132720Skan __glibcxx_check_nonempty(); 223132720Skan return _Base::back(); 224132720Skan } 225132720Skan 226132720Skan const_reference 227132720Skan back() const 228132720Skan { 229132720Skan __glibcxx_check_nonempty(); 230132720Skan return _Base::back(); 231132720Skan } 232132720Skan 233132720Skan // 23.2.4.3 modifiers: 234132720Skan void 235132720Skan push_back(const _Tp& __x) 236132720Skan { 237132720Skan bool __realloc = _M_requires_reallocation(this->size() + 1); 238132720Skan _Base::push_back(__x); 239132720Skan if (__realloc) 240132720Skan this->_M_invalidate_all(); 241132720Skan _M_update_guaranteed_capacity(); 242132720Skan } 243132720Skan 244132720Skan void 245132720Skan pop_back() 246132720Skan { 247132720Skan __glibcxx_check_nonempty(); 248132720Skan iterator __victim = end() - 1; 249132720Skan __victim._M_invalidate(); 250132720Skan _Base::pop_back(); 251132720Skan } 252132720Skan 253132720Skan iterator 254132720Skan insert(iterator __position, const _Tp& __x) 255132720Skan { 256132720Skan __glibcxx_check_insert(__position); 257132720Skan bool __realloc = _M_requires_reallocation(this->size() + 1); 258132720Skan difference_type __offset = __position - begin(); 259132720Skan typename _Base::iterator __res = _Base::insert(__position.base(),__x); 260132720Skan if (__realloc) 261132720Skan this->_M_invalidate_all(); 262132720Skan else 263132720Skan this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); 264132720Skan _M_update_guaranteed_capacity(); 265132720Skan return iterator(__res, this); 266132720Skan } 267132720Skan 268132720Skan void 269132720Skan insert(iterator __position, size_type __n, const _Tp& __x) 270132720Skan { 271132720Skan __glibcxx_check_insert(__position); 272132720Skan bool __realloc = _M_requires_reallocation(this->size() + __n); 273132720Skan difference_type __offset = __position - begin(); 274132720Skan _Base::insert(__position.base(), __n, __x); 275132720Skan if (__realloc) 276132720Skan this->_M_invalidate_all(); 277132720Skan else 278132720Skan this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); 279132720Skan _M_update_guaranteed_capacity(); 280132720Skan } 281132720Skan 282132720Skan template<class _InputIterator> 283132720Skan void 284132720Skan insert(iterator __position, 285132720Skan _InputIterator __first, _InputIterator __last) 286132720Skan { 287132720Skan __glibcxx_check_insert_range(__position, __first, __last); 288132720Skan 289132720Skan /* Hard to guess if invalidation will occur, because __last 290132720Skan - __first can't be calculated in all cases, so we just 291132720Skan punt here by checking if it did occur. */ 292132720Skan typename _Base::iterator __old_begin = _M_base().begin(); 293132720Skan difference_type __offset = __position - begin(); 294132720Skan _Base::insert(__position.base(), __first, __last); 295132720Skan 296132720Skan if (_M_base().begin() != __old_begin) 297132720Skan this->_M_invalidate_all(); 298132720Skan else 299132720Skan this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); 300132720Skan _M_update_guaranteed_capacity(); 301132720Skan } 302132720Skan 303132720Skan iterator 304132720Skan erase(iterator __position) 305132720Skan { 306132720Skan __glibcxx_check_erase(__position); 307132720Skan difference_type __offset = __position - begin(); 308132720Skan typename _Base::iterator __res = _Base::erase(__position.base()); 309132720Skan this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); 310132720Skan return iterator(__res, this); 311132720Skan } 312132720Skan 313132720Skan iterator 314132720Skan erase(iterator __first, iterator __last) 315132720Skan { 316132720Skan // _GLIBCXX_RESOLVE_LIB_DEFECTS 317132720Skan // 151. can't currently clear() empty container 318132720Skan __glibcxx_check_erase_range(__first, __last); 319132720Skan 320132720Skan difference_type __offset = __first - begin(); 321132720Skan typename _Base::iterator __res = _Base::erase(__first.base(), 322132720Skan __last.base()); 323132720Skan this->_M_invalidate_if(_After_nth(__offset, _M_base().begin())); 324132720Skan return iterator(__res, this); 325132720Skan } 326132720Skan 327132720Skan void 328132720Skan swap(vector<_Tp,_Allocator>& __x) 329132720Skan { 330132720Skan _Base::swap(__x); 331132720Skan this->_M_swap(__x); 332132720Skan std::swap(_M_guaranteed_capacity, __x._M_guaranteed_capacity); 333132720Skan } 334132720Skan 335132720Skan void 336132720Skan clear() 337132720Skan { 338132720Skan _Base::clear(); 339132720Skan this->_M_invalidate_all(); 340132720Skan _M_guaranteed_capacity = 0; 341132720Skan } 342132720Skan 343132720Skan _Base& 344132720Skan _M_base() { return *this; } 345132720Skan 346132720Skan const _Base& 347132720Skan _M_base() const { return *this; } 348132720Skan 349132720Skan private: 350132720Skan size_type _M_guaranteed_capacity; 351132720Skan 352132720Skan bool 353132720Skan _M_requires_reallocation(size_type __elements) 354132720Skan { 355132720Skan#ifdef _GLIBCXX_DEBUG_PEDANTIC 356132720Skan return __elements > this->capacity(); 357132720Skan#else 358132720Skan return __elements > _M_guaranteed_capacity; 359132720Skan#endif 360132720Skan } 361132720Skan 362132720Skan void 363132720Skan _M_update_guaranteed_capacity() 364132720Skan { 365132720Skan if (this->size() > _M_guaranteed_capacity) 366132720Skan _M_guaranteed_capacity = this->size(); 367132720Skan } 368132720Skan }; 369132720Skan 370132720Skan template<typename _Tp, typename _Alloc> 371132720Skan inline bool 372132720Skan operator==(const vector<_Tp, _Alloc>& __lhs, 373132720Skan const vector<_Tp, _Alloc>& __rhs) 374132720Skan { return __lhs._M_base() == __rhs._M_base(); } 375132720Skan 376132720Skan template<typename _Tp, typename _Alloc> 377132720Skan inline bool 378132720Skan operator!=(const vector<_Tp, _Alloc>& __lhs, 379132720Skan const vector<_Tp, _Alloc>& __rhs) 380132720Skan { return __lhs._M_base() != __rhs._M_base(); } 381132720Skan 382132720Skan template<typename _Tp, typename _Alloc> 383132720Skan inline bool 384132720Skan operator<(const vector<_Tp, _Alloc>& __lhs, 385132720Skan const vector<_Tp, _Alloc>& __rhs) 386132720Skan { return __lhs._M_base() < __rhs._M_base(); } 387132720Skan 388132720Skan template<typename _Tp, typename _Alloc> 389132720Skan inline bool 390132720Skan operator<=(const vector<_Tp, _Alloc>& __lhs, 391132720Skan const vector<_Tp, _Alloc>& __rhs) 392132720Skan { return __lhs._M_base() <= __rhs._M_base(); } 393132720Skan 394132720Skan template<typename _Tp, typename _Alloc> 395132720Skan inline bool 396132720Skan operator>=(const vector<_Tp, _Alloc>& __lhs, 397132720Skan const vector<_Tp, _Alloc>& __rhs) 398132720Skan { return __lhs._M_base() >= __rhs._M_base(); } 399132720Skan 400132720Skan template<typename _Tp, typename _Alloc> 401132720Skan inline bool 402132720Skan operator>(const vector<_Tp, _Alloc>& __lhs, 403132720Skan const vector<_Tp, _Alloc>& __rhs) 404132720Skan { return __lhs._M_base() > __rhs._M_base(); } 405132720Skan 406132720Skan template<typename _Tp, typename _Alloc> 407132720Skan inline void 408132720Skan swap(vector<_Tp, _Alloc>& __lhs, vector<_Tp, _Alloc>& __rhs) 409132720Skan { __lhs.swap(__rhs); } 410132720Skan} // namespace __gnu_debug_def 411132720Skan 412132720Skan#endif 413