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1 | // Debugging multimap implementation -*- C++ -*- | |
2 | ||
3 | // Copyright (C) 2003-2025 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/multimap.h | |
26 | * This file is a GNU debug extension to the Standard C++ Library. | |
27 | */ | |
28 | ||
29 | #ifndef _GLIBCXX_DEBUG_MULTIMAP_H | |
30 | #define _GLIBCXX_DEBUG_MULTIMAP_H 1 | |
31 | ||
32 | #include <debug/safe_sequence.h> | |
33 | #include <debug/safe_container.h> | |
34 | #include <debug/safe_iterator.h> | |
35 | #include <bits/stl_pair.h> | |
36 | ||
37 | namespace std _GLIBCXX_VISIBILITY(default) | |
38 | { | |
39 | namespace __debug | |
40 | { | |
41 | /// Class std::multimap with safety/checking/debug instrumentation. | |
42 | template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>, | |
43 | typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > > | |
44 | class multimap | |
45 | : public __gnu_debug::_Safe_container< | |
46 | multimap<_Key, _Tp, _Compare, _Allocator>, _Allocator, | |
47 | __gnu_debug::_Safe_node_sequence>, | |
48 | public _GLIBCXX_STD_C::multimap<_Key, _Tp, _Compare, _Allocator> | |
49 | { | |
50 | typedef _GLIBCXX_STD_C::multimap< | |
51 | _Key, _Tp, _Compare, _Allocator> _Base; | |
52 | typedef __gnu_debug::_Safe_container< | |
53 | multimap, _Allocator, __gnu_debug::_Safe_node_sequence> _Safe; | |
54 | ||
55 | typedef typename _Base::const_iterator _Base_const_iterator; | |
56 | typedef typename _Base::iterator _Base_iterator; | |
57 | typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal; | |
58 | ||
59 | template<typename _ItT, typename _SeqT, typename _CatT> | |
60 | friend class ::__gnu_debug::_Safe_iterator; | |
61 | ||
62 | // Reference wrapper for base class. Disambiguates multimap(const _Base&) | |
63 | // from copy constructor by requiring a user-defined conversion. | |
64 | // See PR libstdc++/90102. | |
65 | struct _Base_ref | |
66 | { | |
67 | _Base_ref(const _Base& __r) : _M_ref(__r) { } | |
68 | ||
69 | const _Base& _M_ref; | |
70 | }; | |
71 | ||
72 | public: | |
73 | // types: | |
74 | typedef _Key key_type; | |
75 | typedef _Tp mapped_type; | |
76 | typedef std::pair<const _Key, _Tp> value_type; | |
77 | typedef _Compare key_compare; | |
78 | typedef _Allocator allocator_type; | |
79 | typedef typename _Base::reference reference; | |
80 | typedef typename _Base::const_reference const_reference; | |
81 | ||
82 | typedef __gnu_debug::_Safe_iterator<_Base_iterator, multimap> | |
83 | iterator; | |
84 | typedef __gnu_debug::_Safe_iterator<_Base_const_iterator, | |
85 | multimap> const_iterator; | |
86 | ||
87 | typedef typename _Base::size_type size_type; | |
88 | typedef typename _Base::difference_type difference_type; | |
89 | typedef typename _Base::pointer pointer; | |
90 | typedef typename _Base::const_pointer const_pointer; | |
91 | typedef std::reverse_iterator<iterator> reverse_iterator; | |
92 | typedef std::reverse_iterator<const_iterator> const_reverse_iterator; | |
93 | ||
94 | // 23.3.1.1 construct/copy/destroy: | |
95 | ||
96 | #if __cplusplus < 201103L | |
97 | multimap() : _Base() { } | |
98 | ||
99 | multimap(const multimap& __x) | |
100 | : _Base(__x) { } | |
101 | ||
102 | ~multimap() { } | |
103 | #else | |
104 | multimap() = default; | |
105 | multimap(const multimap&) = default; | |
106 | multimap(multimap&&) = default; | |
107 | ||
108 | multimap(initializer_list<value_type> __l, | |
109 | const _Compare& __c = _Compare(), | |
110 | const allocator_type& __a = allocator_type()) | |
111 | : _Base(__l, __c, __a) { } | |
112 | ||
113 | explicit | |
114 | multimap(const allocator_type& __a) | |
115 | : _Base(__a) { } | |
116 | ||
117 | multimap(const multimap& __m, | |
118 | const __type_identity_t<allocator_type>& __a) | |
119 | : _Base(__m, __a) { } | |
120 | ||
121 | multimap(multimap&& __m, const __type_identity_t<allocator_type>& __a) | |
122 | noexcept( noexcept(_Base(std::move(__m), __a)) ) | |
123 | : _Safe(std::move(__m), __a), | |
124 | _Base(std::move(__m), __a) { } | |
125 | ||
126 | multimap(initializer_list<value_type> __l, const allocator_type& __a) | |
127 | : _Base(__l, __a) { } | |
128 | ||
129 | template<typename _InputIterator> | |
130 | multimap(_InputIterator __first, _InputIterator __last, | |
131 | const allocator_type& __a) | |
132 | : _Base(__gnu_debug::__base( | |
133 | __glibcxx_check_valid_constructor_range(__first, __last)), | |
134 | __gnu_debug::__base(__last), __a) { } | |
135 | ||
136 | #if __glibcxx_containers_ranges // C++ >= 23 | |
137 | /** | |
138 | * @brief Construct a multimap from a range. | |
139 | * @since C++23 | |
140 | */ | |
141 | template<std::__detail::__container_compatible_range<value_type> _Rg> | |
142 | multimap(std::from_range_t __t, _Rg&& __rg, | |
143 | const _Compare& __c, | |
144 | const allocator_type& __a = allocator_type()) | |
145 | : _Base(__t, std::forward<_Rg>(__rg), __c, __a) | |
146 | { } | |
147 | ||
148 | template<std::__detail::__container_compatible_range<value_type> _Rg> | |
149 | multimap(std::from_range_t __t, _Rg&& __rg, | |
150 | const allocator_type& __a = allocator_type()) | |
151 | : _Base(__t, std::forward<_Rg>(__rg), __a) | |
152 | { } | |
153 | #endif | |
154 | ||
155 | ~multimap() = default; | |
156 | #endif | |
157 | ||
158 | explicit multimap(const _Compare& __comp, | |
159 | const _Allocator& __a = _Allocator()) | |
160 | : _Base(__comp, __a) { } | |
161 | ||
162 | template<typename _InputIterator> | |
163 | multimap(_InputIterator __first, _InputIterator __last, | |
164 | const _Compare& __comp = _Compare(), | |
165 | const _Allocator& __a = _Allocator()) | |
166 | : _Base(__gnu_debug::__base( | |
167 | __glibcxx_check_valid_constructor_range(__first, __last)), | |
168 | __gnu_debug::__base(__last), | |
169 | __comp, __a) { } | |
170 | ||
171 | multimap(_Base_ref __x) | |
172 | : _Base(__x._M_ref) { } | |
173 | ||
174 | #if __cplusplus >= 201103L | |
175 | multimap& | |
176 | operator=(const multimap&) = default; | |
177 | ||
178 | multimap& | |
179 | operator=(multimap&&) = default; | |
180 | ||
181 | multimap& | |
182 | operator=(initializer_list<value_type> __l) | |
183 | { | |
184 | _Base::operator=(__l); | |
185 | this->_M_invalidate_all(); | |
186 | return *this; | |
187 | } | |
188 | #endif | |
189 | ||
190 | using _Base::get_allocator; | |
191 | ||
192 | // iterators: | |
193 | iterator | |
194 | begin() _GLIBCXX_NOEXCEPT | |
195 | { return iterator(_Base::begin(), this); } | |
196 | ||
197 | const_iterator | |
198 | begin() const _GLIBCXX_NOEXCEPT | |
199 | { return const_iterator(_Base::begin(), this); } | |
200 | ||
201 | iterator | |
202 | end() _GLIBCXX_NOEXCEPT | |
203 | { return iterator(_Base::end(), this); } | |
204 | ||
205 | const_iterator | |
206 | end() const _GLIBCXX_NOEXCEPT | |
207 | { return const_iterator(_Base::end(), this); } | |
208 | ||
209 | reverse_iterator | |
210 | rbegin() _GLIBCXX_NOEXCEPT | |
211 | { return reverse_iterator(end()); } | |
212 | ||
213 | const_reverse_iterator | |
214 | rbegin() const _GLIBCXX_NOEXCEPT | |
215 | { return const_reverse_iterator(end()); } | |
216 | ||
217 | reverse_iterator | |
218 | rend() _GLIBCXX_NOEXCEPT | |
219 | { return reverse_iterator(begin()); } | |
220 | ||
221 | const_reverse_iterator | |
222 | rend() const _GLIBCXX_NOEXCEPT | |
223 | { return const_reverse_iterator(begin()); } | |
224 | ||
225 | #if __cplusplus >= 201103L | |
226 | const_iterator | |
227 | cbegin() const noexcept | |
228 | { return const_iterator(_Base::begin(), this); } | |
229 | ||
230 | const_iterator | |
231 | cend() const noexcept | |
232 | { return const_iterator(_Base::end(), this); } | |
233 | ||
234 | const_reverse_iterator | |
235 | crbegin() const noexcept | |
236 | { return const_reverse_iterator(end()); } | |
237 | ||
238 | const_reverse_iterator | |
239 | crend() const noexcept | |
240 | { return const_reverse_iterator(begin()); } | |
241 | #endif | |
242 | ||
243 | // capacity: | |
244 | using _Base::empty; | |
245 | using _Base::size; | |
246 | using _Base::max_size; | |
247 | ||
248 | // modifiers: | |
249 | #if __cplusplus >= 201103L | |
250 | template<typename... _Args> | |
251 | iterator | |
252 | emplace(_Args&&... __args) | |
253 | { return { _Base::emplace(std::forward<_Args>(__args)...), this }; } | |
254 | ||
255 | template<typename... _Args> | |
256 | iterator | |
257 | emplace_hint(const_iterator __pos, _Args&&... __args) | |
258 | { | |
259 | __glibcxx_check_insert(__pos); | |
260 | return | |
261 | { | |
262 | _Base::emplace_hint(__pos.base(), std::forward<_Args>(__args)...), | |
263 | this | |
264 | }; | |
265 | } | |
266 | #endif | |
267 | ||
268 | iterator | |
269 | insert(const value_type& __x) | |
270 | { return iterator(_Base::insert(__x), this); } | |
271 | ||
272 | #if __cplusplus >= 201103L | |
273 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
274 | // 2354. Unnecessary copying when inserting into maps with braced-init | |
275 | iterator | |
276 | insert(value_type&& __x) | |
277 | { return { _Base::insert(std::move(__x)), this }; } | |
278 | ||
279 | template<typename _Pair, typename = typename | |
280 | std::enable_if<std::is_constructible<value_type, | |
281 | _Pair&&>::value>::type> | |
282 | iterator | |
283 | insert(_Pair&& __x) | |
284 | { return { _Base::insert(std::forward<_Pair>(__x)), this }; } | |
285 | #endif | |
286 | ||
287 | #if __cplusplus >= 201103L | |
288 | void | |
289 | insert(std::initializer_list<value_type> __list) | |
290 | { _Base::insert(__list); } | |
291 | #endif | |
292 | ||
293 | iterator | |
294 | #if __cplusplus >= 201103L | |
295 | insert(const_iterator __position, const value_type& __x) | |
296 | #else | |
297 | insert(iterator __position, const value_type& __x) | |
298 | #endif | |
299 | { | |
300 | __glibcxx_check_insert(__position); | |
301 | return iterator(_Base::insert(__position.base(), __x), this); | |
302 | } | |
303 | ||
304 | #if __cplusplus >= 201103L | |
305 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
306 | // 2354. Unnecessary copying when inserting into maps with braced-init | |
307 | iterator | |
308 | insert(const_iterator __position, value_type&& __x) | |
309 | { | |
310 | __glibcxx_check_insert(__position); | |
311 | return { _Base::insert(__position.base(), std::move(__x)), this }; | |
312 | } | |
313 | ||
314 | template<typename _Pair, typename = typename | |
315 | std::enable_if<std::is_constructible<value_type, | |
316 | _Pair&&>::value>::type> | |
317 | iterator | |
318 | insert(const_iterator __position, _Pair&& __x) | |
319 | { | |
320 | __glibcxx_check_insert(__position); | |
321 | return | |
322 | { | |
323 | _Base::insert(__position.base(), std::forward<_Pair>(__x)), | |
324 | this | |
325 | }; | |
326 | } | |
327 | #endif | |
328 | ||
329 | template<typename _InputIterator> | |
330 | void | |
331 | insert(_InputIterator __first, _InputIterator __last) | |
332 | { | |
333 | typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist; | |
334 | __glibcxx_check_valid_range2(__first, __last, __dist); | |
335 | ||
336 | if (__dist.second >= __gnu_debug::__dp_sign) | |
337 | _Base::insert(__gnu_debug::__unsafe(__first), | |
338 | __gnu_debug::__unsafe(__last)); | |
339 | else | |
340 | _Base::insert(__first, __last); | |
341 | } | |
342 | ||
343 | #if __cplusplus > 201402L | |
344 | using node_type = typename _Base::node_type; | |
345 | ||
346 | node_type | |
347 | extract(const_iterator __position) | |
348 | { | |
349 | __glibcxx_check_erase(__position); | |
350 | this->_M_invalidate_if(_Equal(__position.base())); | |
351 | return _Base::extract(__position.base()); | |
352 | } | |
353 | ||
354 | node_type | |
355 | extract(const key_type& __key) | |
356 | { | |
357 | const auto __position = find(__key); | |
358 | if (__position != end()) | |
359 | return extract(__position); | |
360 | return {}; | |
361 | } | |
362 | ||
363 | iterator | |
364 | insert(node_type&& __nh) | |
365 | { return { _Base::insert(std::move(__nh)), this }; } | |
366 | ||
367 | iterator | |
368 | insert(const_iterator __hint, node_type&& __nh) | |
369 | { | |
370 | __glibcxx_check_insert(__hint); | |
371 | return { _Base::insert(__hint.base(), std::move(__nh)), this }; | |
372 | } | |
373 | ||
374 | using _Base::merge; | |
375 | #endif // C++17 | |
376 | ||
377 | #if __cplusplus >= 201103L | |
378 | iterator | |
379 | erase(const_iterator __position) | |
380 | { | |
381 | __glibcxx_check_erase(__position); | |
382 | return { erase(__position.base()), this }; | |
383 | } | |
384 | ||
385 | _Base_iterator | |
386 | erase(_Base_const_iterator __position) | |
387 | { | |
388 | __glibcxx_check_erase2(__position); | |
389 | this->_M_invalidate_if(_Equal(__position)); | |
390 | return _Base::erase(__position); | |
391 | } | |
392 | ||
393 | _GLIBCXX_ABI_TAG_CXX11 | |
394 | iterator | |
395 | erase(iterator __position) | |
396 | { return erase(const_iterator(__position)); } | |
397 | #else | |
398 | void | |
399 | erase(iterator __position) | |
400 | { | |
401 | __glibcxx_check_erase(__position); | |
402 | this->_M_invalidate_if(_Equal(__position.base())); | |
403 | _Base::erase(__position.base()); | |
404 | } | |
405 | #endif | |
406 | ||
407 | size_type | |
408 | erase(const key_type& __x) | |
409 | { | |
410 | std::pair<_Base_iterator, _Base_iterator> __victims = | |
411 | _Base::equal_range(__x); | |
412 | size_type __count = 0; | |
413 | _Base_iterator __victim = __victims.first; | |
414 | while (__victim != __victims.second) | |
415 | { | |
416 | this->_M_invalidate_if(_Equal(__victim)); | |
417 | _Base::erase(__victim++); | |
418 | ++__count; | |
419 | } | |
420 | return __count; | |
421 | } | |
422 | ||
423 | #if __cplusplus >= 201103L | |
424 | iterator | |
425 | erase(const_iterator __first, const_iterator __last) | |
426 | { | |
427 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
428 | // 151. can't currently clear() empty container | |
429 | __glibcxx_check_erase_range(__first, __last); | |
430 | for (_Base_const_iterator __victim = __first.base(); | |
431 | __victim != __last.base(); ++__victim) | |
432 | { | |
433 | _GLIBCXX_DEBUG_VERIFY(__victim != _Base::cend(), | |
434 | _M_message(__gnu_debug::__msg_valid_range) | |
435 | ._M_iterator(__first, "first") | |
436 | ._M_iterator(__last, "last")); | |
437 | this->_M_invalidate_if(_Equal(__victim)); | |
438 | } | |
439 | ||
440 | return { _Base::erase(__first.base(), __last.base()), this }; | |
441 | } | |
442 | #else | |
443 | void | |
444 | erase(iterator __first, iterator __last) | |
445 | { | |
446 | // _GLIBCXX_RESOLVE_LIB_DEFECTS | |
447 | // 151. can't currently clear() empty container | |
448 | __glibcxx_check_erase_range(__first, __last); | |
449 | for (_Base_iterator __victim = __first.base(); | |
450 | __victim != __last.base(); ++__victim) | |
451 | { | |
452 | _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(), | |
453 | _M_message(__gnu_debug::__msg_valid_range) | |
454 | ._M_iterator(__first, "first") | |
455 | ._M_iterator(__last, "last")); | |
456 | this->_M_invalidate_if(_Equal(__victim)); | |
457 | } | |
458 | _Base::erase(__first.base(), __last.base()); | |
459 | } | |
460 | #endif | |
461 | ||
462 | void | |
463 | swap(multimap& __x) | |
464 | _GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) ) | |
465 | { | |
466 | _Safe::_M_swap(__x); | |
467 | _Base::swap(__x); | |
468 | } | |
469 | ||
470 | void | |
471 | clear() _GLIBCXX_NOEXCEPT | |
472 | { | |
473 | this->_M_invalidate_all(); | |
474 | _Base::clear(); | |
475 | } | |
476 | ||
477 | // observers: | |
478 | using _Base::key_comp; | |
479 | using _Base::value_comp; | |
480 | ||
481 | // 23.3.1.3 multimap operations: | |
482 | iterator | |
483 | find(const key_type& __x) | |
484 | { return iterator(_Base::find(__x), this); } | |
485 | ||
486 | #if __cplusplus > 201103L | |
487 | template<typename _Kt, | |
488 | typename _Req = | |
489 | typename __has_is_transparent<_Compare, _Kt>::type> | |
490 | iterator | |
491 | find(const _Kt& __x) | |
492 | { return { _Base::find(__x), this }; } | |
493 | #endif | |
494 | ||
495 | const_iterator | |
496 | find(const key_type& __x) const | |
497 | { return const_iterator(_Base::find(__x), this); } | |
498 | ||
499 | #if __cplusplus > 201103L | |
500 | template<typename _Kt, | |
501 | typename _Req = | |
502 | typename __has_is_transparent<_Compare, _Kt>::type> | |
503 | const_iterator | |
504 | find(const _Kt& __x) const | |
505 | { return { _Base::find(__x), this }; } | |
506 | #endif | |
507 | ||
508 | using _Base::count; | |
509 | ||
510 | iterator | |
511 | lower_bound(const key_type& __x) | |
512 | { return iterator(_Base::lower_bound(__x), this); } | |
513 | ||
514 | #if __cplusplus > 201103L | |
515 | template<typename _Kt, | |
516 | typename _Req = | |
517 | typename __has_is_transparent<_Compare, _Kt>::type> | |
518 | iterator | |
519 | lower_bound(const _Kt& __x) | |
520 | { return { _Base::lower_bound(__x), this }; } | |
521 | #endif | |
522 | ||
523 | const_iterator | |
524 | lower_bound(const key_type& __x) const | |
525 | { return const_iterator(_Base::lower_bound(__x), this); } | |
526 | ||
527 | #if __cplusplus > 201103L | |
528 | template<typename _Kt, | |
529 | typename _Req = | |
530 | typename __has_is_transparent<_Compare, _Kt>::type> | |
531 | const_iterator | |
532 | lower_bound(const _Kt& __x) const | |
533 | { return { _Base::lower_bound(__x), this }; } | |
534 | #endif | |
535 | ||
536 | iterator | |
537 | upper_bound(const key_type& __x) | |
538 | { return iterator(_Base::upper_bound(__x), this); } | |
539 | ||
540 | #if __cplusplus > 201103L | |
541 | template<typename _Kt, | |
542 | typename _Req = | |
543 | typename __has_is_transparent<_Compare, _Kt>::type> | |
544 | iterator | |
545 | upper_bound(const _Kt& __x) | |
546 | { return { _Base::upper_bound(__x), this }; } | |
547 | #endif | |
548 | ||
549 | const_iterator | |
550 | upper_bound(const key_type& __x) const | |
551 | { return const_iterator(_Base::upper_bound(__x), this); } | |
552 | ||
553 | #if __cplusplus > 201103L | |
554 | template<typename _Kt, | |
555 | typename _Req = | |
556 | typename __has_is_transparent<_Compare, _Kt>::type> | |
557 | const_iterator | |
558 | upper_bound(const _Kt& __x) const | |
559 | { return { _Base::upper_bound(__x), this }; } | |
560 | #endif | |
561 | ||
562 | std::pair<iterator,iterator> | |
563 | equal_range(const key_type& __x) | |
564 | { | |
565 | std::pair<_Base_iterator, _Base_iterator> __res = | |
566 | _Base::equal_range(__x); | |
567 | return std::make_pair(iterator(__res.first, this), | |
568 | iterator(__res.second, this)); | |
569 | } | |
570 | ||
571 | #if __cplusplus > 201103L | |
572 | template<typename _Kt, | |
573 | typename _Req = | |
574 | typename __has_is_transparent<_Compare, _Kt>::type> | |
575 | std::pair<iterator, iterator> | |
576 | equal_range(const _Kt& __x) | |
577 | { | |
578 | auto __res = _Base::equal_range(__x); | |
579 | return { { __res.first, this }, { __res.second, this } }; | |
580 | } | |
581 | #endif | |
582 | ||
583 | std::pair<const_iterator,const_iterator> | |
584 | equal_range(const key_type& __x) const | |
585 | { | |
586 | std::pair<_Base_const_iterator, _Base_const_iterator> __res = | |
587 | _Base::equal_range(__x); | |
588 | return std::make_pair(const_iterator(__res.first, this), | |
589 | const_iterator(__res.second, this)); | |
590 | } | |
591 | ||
592 | #if __cplusplus > 201103L | |
593 | template<typename _Kt, | |
594 | typename _Req = | |
595 | typename __has_is_transparent<_Compare, _Kt>::type> | |
596 | std::pair<const_iterator, const_iterator> | |
597 | equal_range(const _Kt& __x) const | |
598 | { | |
599 | auto __res = _Base::equal_range(__x); | |
600 | return { { __res.first, this }, { __res.second, this } }; | |
601 | } | |
602 | #endif | |
603 | ||
604 | _Base& | |
605 | _M_base() _GLIBCXX_NOEXCEPT { return *this; } | |
606 | ||
607 | const _Base& | |
608 | _M_base() const _GLIBCXX_NOEXCEPT { return *this; } | |
609 | }; | |
610 | ||
611 | #if __cpp_deduction_guides >= 201606 | |
612 | ||
613 | template<typename _InputIterator, | |
614 | typename _Compare = less<__iter_key_t<_InputIterator>>, | |
615 | typename _Allocator = allocator<__iter_to_alloc_t<_InputIterator>>, | |
616 | typename = _RequireInputIter<_InputIterator>, | |
617 | typename = _RequireNotAllocator<_Compare>, | |
618 | typename = _RequireAllocator<_Allocator>> | |
619 | multimap(_InputIterator, _InputIterator, | |
620 | _Compare = _Compare(), _Allocator = _Allocator()) | |
621 | -> multimap<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>, | |
622 | _Compare, _Allocator>; | |
623 | ||
624 | template<typename _Key, typename _Tp, typename _Compare = less<_Key>, | |
625 | typename _Allocator = allocator<pair<const _Key, _Tp>>, | |
626 | typename = _RequireNotAllocator<_Compare>, | |
627 | typename = _RequireAllocator<_Allocator>> | |
628 | multimap(initializer_list<pair<_Key, _Tp>>, | |
629 | _Compare = _Compare(), _Allocator = _Allocator()) | |
630 | -> multimap<_Key, _Tp, _Compare, _Allocator>; | |
631 | ||
632 | template<typename _InputIterator, typename _Allocator, | |
633 | typename = _RequireInputIter<_InputIterator>, | |
634 | typename = _RequireAllocator<_Allocator>> | |
635 | multimap(_InputIterator, _InputIterator, _Allocator) | |
636 | -> multimap<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>, | |
637 | less<__iter_key_t<_InputIterator>>, _Allocator>; | |
638 | ||
639 | template<typename _Key, typename _Tp, typename _Allocator, | |
640 | typename = _RequireAllocator<_Allocator>> | |
641 | multimap(initializer_list<pair<_Key, _Tp>>, _Allocator) | |
642 | -> multimap<_Key, _Tp, less<_Key>, _Allocator>; | |
643 | ||
644 | #if __glibcxx_containers_ranges // C++ >= 23 | |
645 | template<ranges::input_range _Rg, | |
646 | __not_allocator_like _Compare = less<__detail::__range_key_type<_Rg>>, | |
647 | __allocator_like _Alloc = | |
648 | std::allocator<__detail::__range_to_alloc_type<_Rg>>> | |
649 | multimap(from_range_t, _Rg&&, _Compare = _Compare(), _Alloc = _Alloc()) | |
650 | -> multimap<__detail::__range_key_type<_Rg>, | |
651 | __detail::__range_mapped_type<_Rg>, | |
652 | _Compare, _Alloc>; | |
653 | ||
654 | template<ranges::input_range _Rg, __allocator_like _Alloc> | |
655 | multimap(from_range_t, _Rg&&, _Alloc) | |
656 | -> multimap<__detail::__range_key_type<_Rg>, | |
657 | __detail::__range_mapped_type<_Rg>, | |
658 | less<__detail::__range_key_type<_Rg>>, | |
659 | _Alloc>; | |
660 | #endif | |
661 | #endif | |
662 | ||
663 | template<typename _Key, typename _Tp, | |
664 | typename _Compare, typename _Allocator> | |
665 | inline bool | |
666 | operator==(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs, | |
667 | const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs) | |
668 | { return __lhs._M_base() == __rhs._M_base(); } | |
669 | ||
670 | #if __cpp_lib_three_way_comparison | |
671 | template<typename _Key, typename _Tp, typename _Compare, typename _Alloc> | |
672 | inline __detail::__synth3way_t<pair<const _Key, _Tp>> | |
673 | operator<=>(const multimap<_Key, _Tp, _Compare, _Alloc>& __lhs, | |
674 | const multimap<_Key, _Tp, _Compare, _Alloc>& __rhs) | |
675 | { return __lhs._M_base() <=> __rhs._M_base(); } | |
676 | #else | |
677 | template<typename _Key, typename _Tp, | |
678 | typename _Compare, typename _Allocator> | |
679 | inline bool | |
680 | operator!=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs, | |
681 | const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs) | |
682 | { return __lhs._M_base() != __rhs._M_base(); } | |
683 | ||
684 | template<typename _Key, typename _Tp, | |
685 | typename _Compare, typename _Allocator> | |
686 | inline bool | |
687 | operator<(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs, | |
688 | const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs) | |
689 | { return __lhs._M_base() < __rhs._M_base(); } | |
690 | ||
691 | template<typename _Key, typename _Tp, | |
692 | typename _Compare, typename _Allocator> | |
693 | inline bool | |
694 | operator<=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs, | |
695 | const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs) | |
696 | { return __lhs._M_base() <= __rhs._M_base(); } | |
697 | ||
698 | template<typename _Key, typename _Tp, | |
699 | typename _Compare, typename _Allocator> | |
700 | inline bool | |
701 | operator>=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs, | |
702 | const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs) | |
703 | { return __lhs._M_base() >= __rhs._M_base(); } | |
704 | ||
705 | template<typename _Key, typename _Tp, | |
706 | typename _Compare, typename _Allocator> | |
707 | inline bool | |
708 | operator>(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs, | |
709 | const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs) | |
710 | { return __lhs._M_base() > __rhs._M_base(); } | |
711 | #endif // three-way comparison | |
712 | ||
713 | template<typename _Key, typename _Tp, | |
714 | typename _Compare, typename _Allocator> | |
715 | inline void | |
716 | swap(multimap<_Key, _Tp, _Compare, _Allocator>& __lhs, | |
717 | multimap<_Key, _Tp, _Compare, _Allocator>& __rhs) | |
718 | _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs))) | |
719 | { __lhs.swap(__rhs); } | |
720 | ||
721 | } // namespace __debug | |
722 | } // namespace std | |
723 | ||
724 | #endif |