1 // Debugging multiset implementation -*- C++ -*- 2 3 // Copyright (C) 2003-2013 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 3, or (at your option) 9 // any later version. 10 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 16 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 /** @file debug/multiset.h 26 * This file is a GNU debug extension to the Standard C++ Library. 27 */ 28 29 #ifndef _GLIBCXX_DEBUG_MULTISET_H 30 #define _GLIBCXX_DEBUG_MULTISET_H 1 31 32 #include <debug/safe_sequence.h> 33 #include <debug/safe_iterator.h> 34 #include <utility> 35 36 namespace std _GLIBCXX_VISIBILITY(default) 37 { 38 namespace __debug 39 { 40 /// Class std::multiset with safety/checking/debug instrumentation. 41 template<typename _Key, typename _Compare = std::less<_Key>, 42 typename _Allocator = std::allocator<_Key> > 43 class multiset 44 : public _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator>, 45 public __gnu_debug::_Safe_sequence<multiset<_Key, _Compare, _Allocator> > 46 { 47 typedef _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator> _Base; 48 49 typedef typename _Base::const_iterator _Base_const_iterator; 50 typedef typename _Base::iterator _Base_iterator; 51 typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal; 52 public: 53 // types: 54 typedef _Key key_type; 55 typedef _Key value_type; 56 typedef _Compare key_compare; 57 typedef _Compare value_compare; 58 typedef _Allocator allocator_type; 59 typedef typename _Base::reference reference; 60 typedef typename _Base::const_reference const_reference; 61 62 typedef __gnu_debug::_Safe_iterator<_Base_iterator, multiset> 63 iterator; 64 typedef __gnu_debug::_Safe_iterator<_Base_const_iterator, 65 multiset> const_iterator; 66 67 typedef typename _Base::size_type size_type; 68 typedef typename _Base::difference_type difference_type; 69 typedef typename _Base::pointer pointer; 70 typedef typename _Base::const_pointer const_pointer; 71 typedef std::reverse_iterator<iterator> reverse_iterator; 72 typedef std::reverse_iterator<const_iterator> const_reverse_iterator; 73 74 // 23.3.3.1 construct/copy/destroy: 75 explicit multiset(const _Compare& __comp = _Compare(), 76 const _Allocator& __a = _Allocator()) 77 : _Base(__comp, __a) { } 78 79 template<typename _InputIterator> 80 multiset(_InputIterator __first, _InputIterator __last, 81 const _Compare& __comp = _Compare(), 82 const _Allocator& __a = _Allocator()) 83 : _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first, 84 __last)), 85 __gnu_debug::__base(__last), 86 __comp, __a) { } 87 88 multiset(const multiset& __x) 89 : _Base(__x) { } 90 91 multiset(const _Base& __x) 92 : _Base(__x) { } 93 94 #if __cplusplus >= 201103L 95 multiset(multiset&& __x) 96 noexcept(is_nothrow_copy_constructible<_Compare>::value) 97 : _Base(std::move(__x)) 98 { this->_M_swap(__x); } 99 100 multiset(initializer_list<value_type> __l, 101 const _Compare& __comp = _Compare(), 102 const allocator_type& __a = allocator_type()) 103 : _Base(__l, __comp, __a) { } 104 #endif 105 106 ~multiset() _GLIBCXX_NOEXCEPT { } 107 108 multiset& 109 operator=(const multiset& __x) 110 { 111 *static_cast<_Base*>(this) = __x; 112 this->_M_invalidate_all(); 113 return *this; 114 } 115 116 #if __cplusplus >= 201103L 117 multiset& 118 operator=(multiset&& __x) 119 { 120 // NB: DR 1204. 121 // NB: DR 675. 122 __glibcxx_check_self_move_assign(__x); 123 clear(); 124 swap(__x); 125 return *this; 126 } 127 128 multiset& 129 operator=(initializer_list<value_type> __l) 130 { 131 this->clear(); 132 this->insert(__l); 133 return *this; 134 } 135 #endif 136 137 using _Base::get_allocator; 138 139 // iterators: 140 iterator 141 begin() _GLIBCXX_NOEXCEPT 142 { return iterator(_Base::begin(), this); } 143 144 const_iterator 145 begin() const _GLIBCXX_NOEXCEPT 146 { return const_iterator(_Base::begin(), this); } 147 148 iterator 149 end() _GLIBCXX_NOEXCEPT 150 { return iterator(_Base::end(), this); } 151 152 const_iterator 153 end() const _GLIBCXX_NOEXCEPT 154 { return const_iterator(_Base::end(), this); } 155 156 reverse_iterator 157 rbegin() _GLIBCXX_NOEXCEPT 158 { return reverse_iterator(end()); } 159 160 const_reverse_iterator 161 rbegin() const _GLIBCXX_NOEXCEPT 162 { return const_reverse_iterator(end()); } 163 164 reverse_iterator 165 rend() _GLIBCXX_NOEXCEPT 166 { return reverse_iterator(begin()); } 167 168 const_reverse_iterator 169 rend() const _GLIBCXX_NOEXCEPT 170 { return const_reverse_iterator(begin()); } 171 172 #if __cplusplus >= 201103L 173 const_iterator 174 cbegin() const noexcept 175 { return const_iterator(_Base::begin(), this); } 176 177 const_iterator 178 cend() const noexcept 179 { return const_iterator(_Base::end(), this); } 180 181 const_reverse_iterator 182 crbegin() const noexcept 183 { return const_reverse_iterator(end()); } 184 185 const_reverse_iterator 186 crend() const noexcept 187 { return const_reverse_iterator(begin()); } 188 #endif 189 190 // capacity: 191 using _Base::empty; 192 using _Base::size; 193 using _Base::max_size; 194 195 // modifiers: 196 #if __cplusplus >= 201103L 197 template<typename... _Args> 198 iterator 199 emplace(_Args&&... __args) 200 { 201 return iterator(_Base::emplace(std::forward<_Args>(__args)...), this); 202 } 203 204 template<typename... _Args> 205 iterator 206 emplace_hint(const_iterator __pos, _Args&&... __args) 207 { 208 __glibcxx_check_insert(__pos); 209 return iterator(_Base::emplace_hint(__pos.base(), 210 std::forward<_Args>(__args)...), 211 this); 212 } 213 #endif 214 215 iterator 216 insert(const value_type& __x) 217 { return iterator(_Base::insert(__x), this); } 218 219 #if __cplusplus >= 201103L 220 iterator 221 insert(value_type&& __x) 222 { return iterator(_Base::insert(std::move(__x)), this); } 223 #endif 224 225 iterator 226 insert(const_iterator __position, const value_type& __x) 227 { 228 __glibcxx_check_insert(__position); 229 return iterator(_Base::insert(__position.base(), __x), this); 230 } 231 232 #if __cplusplus >= 201103L 233 iterator 234 insert(const_iterator __position, value_type&& __x) 235 { 236 __glibcxx_check_insert(__position); 237 return iterator(_Base::insert(__position.base(), std::move(__x)), 238 this); 239 } 240 #endif 241 242 template<typename _InputIterator> 243 void 244 insert(_InputIterator __first, _InputIterator __last) 245 { 246 __glibcxx_check_valid_range(__first, __last); 247 _Base::insert(__gnu_debug::__base(__first), 248 __gnu_debug::__base(__last)); 249 } 250 251 #if __cplusplus >= 201103L 252 void 253 insert(initializer_list<value_type> __l) 254 { _Base::insert(__l); } 255 #endif 256 257 #if __cplusplus >= 201103L 258 iterator 259 erase(const_iterator __position) 260 { 261 __glibcxx_check_erase(__position); 262 this->_M_invalidate_if(_Equal(__position.base())); 263 return iterator(_Base::erase(__position.base()), this); 264 } 265 #else 266 void 267 erase(iterator __position) 268 { 269 __glibcxx_check_erase(__position); 270 this->_M_invalidate_if(_Equal(__position.base())); 271 _Base::erase(__position.base()); 272 } 273 #endif 274 275 size_type 276 erase(const key_type& __x) 277 { 278 std::pair<_Base_iterator, _Base_iterator> __victims = 279 _Base::equal_range(__x); 280 size_type __count = 0; 281 _Base_iterator __victim = __victims.first; 282 while (__victim != __victims.second) 283 { 284 this->_M_invalidate_if(_Equal(__victim)); 285 _Base::erase(__victim++); 286 ++__count; 287 } 288 return __count; 289 } 290 291 #if __cplusplus >= 201103L 292 iterator 293 erase(const_iterator __first, const_iterator __last) 294 { 295 // _GLIBCXX_RESOLVE_LIB_DEFECTS 296 // 151. can't currently clear() empty container 297 __glibcxx_check_erase_range(__first, __last); 298 for (_Base_const_iterator __victim = __first.base(); 299 __victim != __last.base(); ++__victim) 300 { 301 _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(), 302 _M_message(__gnu_debug::__msg_valid_range) 303 ._M_iterator(__first, "first") 304 ._M_iterator(__last, "last")); 305 this->_M_invalidate_if(_Equal(__victim)); 306 } 307 return iterator(_Base::erase(__first.base(), __last.base()), this); 308 } 309 #else 310 void 311 erase(iterator __first, iterator __last) 312 { 313 // _GLIBCXX_RESOLVE_LIB_DEFECTS 314 // 151. can't currently clear() empty container 315 __glibcxx_check_erase_range(__first, __last); 316 for (_Base_iterator __victim = __first.base(); 317 __victim != __last.base(); ++__victim) 318 { 319 _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(), 320 _M_message(__gnu_debug::__msg_valid_range) 321 ._M_iterator(__first, "first") 322 ._M_iterator(__last, "last")); 323 this->_M_invalidate_if(_Equal(__victim)); 324 } 325 _Base::erase(__first.base(), __last.base()); 326 } 327 #endif 328 329 void 330 swap(multiset& __x) 331 { 332 _Base::swap(__x); 333 this->_M_swap(__x); 334 } 335 336 void 337 clear() _GLIBCXX_NOEXCEPT 338 { 339 this->_M_invalidate_all(); 340 _Base::clear(); 341 } 342 343 // observers: 344 using _Base::key_comp; 345 using _Base::value_comp; 346 347 // multiset operations: 348 iterator 349 find(const key_type& __x) 350 { return iterator(_Base::find(__x), this); } 351 352 // _GLIBCXX_RESOLVE_LIB_DEFECTS 353 // 214. set::find() missing const overload 354 const_iterator 355 find(const key_type& __x) const 356 { return const_iterator(_Base::find(__x), this); } 357 358 using _Base::count; 359 360 iterator 361 lower_bound(const key_type& __x) 362 { return iterator(_Base::lower_bound(__x), this); } 363 364 // _GLIBCXX_RESOLVE_LIB_DEFECTS 365 // 214. set::find() missing const overload 366 const_iterator 367 lower_bound(const key_type& __x) const 368 { return const_iterator(_Base::lower_bound(__x), this); } 369 370 iterator 371 upper_bound(const key_type& __x) 372 { return iterator(_Base::upper_bound(__x), this); } 373 374 // _GLIBCXX_RESOLVE_LIB_DEFECTS 375 // 214. set::find() missing const overload 376 const_iterator 377 upper_bound(const key_type& __x) const 378 { return const_iterator(_Base::upper_bound(__x), this); } 379 380 std::pair<iterator,iterator> 381 equal_range(const key_type& __x) 382 { 383 std::pair<_Base_iterator, _Base_iterator> __res = 384 _Base::equal_range(__x); 385 return std::make_pair(iterator(__res.first, this), 386 iterator(__res.second, this)); 387 } 388 389 // _GLIBCXX_RESOLVE_LIB_DEFECTS 390 // 214. set::find() missing const overload 391 std::pair<const_iterator,const_iterator> 392 equal_range(const key_type& __x) const 393 { 394 std::pair<_Base_const_iterator, _Base_const_iterator> __res = 395 _Base::equal_range(__x); 396 return std::make_pair(const_iterator(__res.first, this), 397 const_iterator(__res.second, this)); 398 } 399 400 _Base& 401 _M_base() _GLIBCXX_NOEXCEPT { return *this; } 402 403 const _Base& 404 _M_base() const _GLIBCXX_NOEXCEPT { return *this; } 405 406 private: 407 void 408 _M_invalidate_all() 409 { 410 typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal; 411 this->_M_invalidate_if(_Not_equal(_Base::end())); 412 } 413 }; 414 415 template<typename _Key, typename _Compare, typename _Allocator> 416 inline bool 417 operator==(const multiset<_Key, _Compare, _Allocator>& __lhs, 418 const multiset<_Key, _Compare, _Allocator>& __rhs) 419 { return __lhs._M_base() == __rhs._M_base(); } 420 421 template<typename _Key, typename _Compare, typename _Allocator> 422 inline bool 423 operator!=(const multiset<_Key, _Compare, _Allocator>& __lhs, 424 const multiset<_Key, _Compare, _Allocator>& __rhs) 425 { return __lhs._M_base() != __rhs._M_base(); } 426 427 template<typename _Key, typename _Compare, typename _Allocator> 428 inline bool 429 operator<(const multiset<_Key, _Compare, _Allocator>& __lhs, 430 const multiset<_Key, _Compare, _Allocator>& __rhs) 431 { return __lhs._M_base() < __rhs._M_base(); } 432 433 template<typename _Key, typename _Compare, typename _Allocator> 434 inline bool 435 operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs, 436 const multiset<_Key, _Compare, _Allocator>& __rhs) 437 { return __lhs._M_base() <= __rhs._M_base(); } 438 439 template<typename _Key, typename _Compare, typename _Allocator> 440 inline bool 441 operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs, 442 const multiset<_Key, _Compare, _Allocator>& __rhs) 443 { return __lhs._M_base() >= __rhs._M_base(); } 444 445 template<typename _Key, typename _Compare, typename _Allocator> 446 inline bool 447 operator>(const multiset<_Key, _Compare, _Allocator>& __lhs, 448 const multiset<_Key, _Compare, _Allocator>& __rhs) 449 { return __lhs._M_base() > __rhs._M_base(); } 450 451 template<typename _Key, typename _Compare, typename _Allocator> 452 void 453 swap(multiset<_Key, _Compare, _Allocator>& __x, 454 multiset<_Key, _Compare, _Allocator>& __y) 455 { return __x.swap(__y); } 456 457 } // namespace __debug 458 } // namespace std 459 460 #endif 461