libstdc++
multiset.h
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1// Debugging multiset 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/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_container.h>
34#include <debug/safe_iterator.h>
35#include <bits/stl_pair.h>
36
37namespace std _GLIBCXX_VISIBILITY(default)
38{
39namespace __debug
40{
41 /// Class std::multiset with safety/checking/debug instrumentation.
42 template<typename _Key, typename _Compare = std::less<_Key>,
43 typename _Allocator = std::allocator<_Key> >
44 class multiset
45 : public __gnu_debug::_Safe_container<
46 multiset<_Key, _Compare, _Allocator>, _Allocator,
47 __gnu_debug::_Safe_node_sequence>,
48 public _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator>
49 {
50 typedef _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator> _Base;
51 typedef __gnu_debug::_Safe_container<
52 multiset, _Allocator, __gnu_debug::_Safe_node_sequence> _Safe;
53
54 typedef typename _Base::const_iterator _Base_const_iterator;
55 typedef typename _Base::iterator _Base_iterator;
56 typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
57
58 template<typename _ItT, typename _SeqT, typename _CatT>
59 friend class ::__gnu_debug::_Safe_iterator;
60
61 // Reference wrapper for base class. Disambiguates multiset(const _Base&)
62 // from copy constructor by requiring a user-defined conversion.
63 // See PR libstdc++/90102.
64 struct _Base_ref
65 {
66 _Base_ref(const _Base& __r) : _M_ref(__r) { }
67
68 const _Base& _M_ref;
69 };
70
71 public:
72 // types:
73 typedef _Key key_type;
74 typedef _Key value_type;
75 typedef _Compare key_compare;
76 typedef _Compare value_compare;
77 typedef _Allocator allocator_type;
78 typedef typename _Base::reference reference;
79 typedef typename _Base::const_reference const_reference;
80
81 typedef __gnu_debug::_Safe_iterator<_Base_iterator, multiset>
82 iterator;
83 typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,
84 multiset> const_iterator;
85
86 typedef typename _Base::size_type size_type;
87 typedef typename _Base::difference_type difference_type;
88 typedef typename _Base::pointer pointer;
89 typedef typename _Base::const_pointer const_pointer;
90 typedef std::reverse_iterator<iterator> reverse_iterator;
91 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
92
93 // 23.3.3.1 construct/copy/destroy:
94
95#if __cplusplus < 201103L
96 multiset() : _Base() { }
97
98 multiset(const multiset& __x)
99 : _Base(__x) { }
100
101 ~multiset() { }
102#else
103 multiset() = default;
104 multiset(const multiset&) = default;
105 multiset(multiset&&) = default;
106
107 multiset(initializer_list<value_type> __l,
108 const _Compare& __comp = _Compare(),
109 const allocator_type& __a = allocator_type())
110 : _Base(__l, __comp, __a) { }
111
112 explicit
113 multiset(const allocator_type& __a)
114 : _Base(__a) { }
115
116 multiset(const multiset& __m,
117 const __type_identity_t<allocator_type>& __a)
118 : _Base(__m, __a) { }
119
120 multiset(multiset&& __m, const __type_identity_t<allocator_type>& __a)
121 noexcept( noexcept(_Base(std::move(__m), __a)) )
122 : _Safe(std::move(__m), __a),
123 _Base(std::move(__m), __a) { }
124
125 multiset(initializer_list<value_type> __l, const allocator_type& __a)
126 : _Base(__l, __a)
127 { }
128
129 template<typename _InputIterator>
130 multiset(_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 multiset from a range.
139 * @since C++23
140 */
141 template<std::__detail::__container_compatible_range<value_type> _Rg>
142 multiset(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 multiset(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 ~multiset() = default;
156#endif
157
158 explicit multiset(const _Compare& __comp,
159 const _Allocator& __a = _Allocator())
160 : _Base(__comp, __a) { }
161
162 template<typename _InputIterator>
163 multiset(_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 multiset(_Base_ref __x)
172 : _Base(__x._M_ref) { }
173
174#if __cplusplus >= 201103L
175 multiset&
176 operator=(const multiset&) = default;
177
178 multiset&
179 operator=(multiset&&) = default;
180
181 multiset&
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 iterator
274 insert(value_type&& __x)
275 { return { _Base::insert(std::move(__x)), this }; }
276#endif
277
278 iterator
279 insert(const_iterator __position, const value_type& __x)
280 {
281 __glibcxx_check_insert(__position);
282 return iterator(_Base::insert(__position.base(), __x), this);
283 }
284
285#if __cplusplus >= 201103L
286 iterator
287 insert(const_iterator __position, value_type&& __x)
288 {
289 __glibcxx_check_insert(__position);
290 return { _Base::insert(__position.base(), std::move(__x)), this };
291 }
292#endif
293
294 template<typename _InputIterator>
295 void
296 insert(_InputIterator __first, _InputIterator __last)
297 {
298 typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
299 __glibcxx_check_valid_range2(__first, __last, __dist);
300
301 if (__dist.second >= __gnu_debug::__dp_sign)
302 _Base::insert(__gnu_debug::__unsafe(__first),
303 __gnu_debug::__unsafe(__last));
304 else
305 _Base::insert(__first, __last);
306 }
307
308#if __cplusplus >= 201103L
309 void
310 insert(initializer_list<value_type> __l)
311 { _Base::insert(__l); }
312#endif
313
314#if __cplusplus > 201402L
315 using node_type = typename _Base::node_type;
316
317 node_type
318 extract(const_iterator __position)
319 {
320 __glibcxx_check_erase(__position);
321 this->_M_invalidate_if(_Equal(__position.base()));
322 return _Base::extract(__position.base());
323 }
324
325 node_type
326 extract(const key_type& __key)
327 {
328 const auto __position = find(__key);
329 if (__position != end())
330 return extract(__position);
331 return {};
332 }
333
334 iterator
335 insert(node_type&& __nh)
336 { return { _Base::insert(std::move(__nh)), this }; }
337
338 iterator
339 insert(const_iterator __hint, node_type&& __nh)
340 {
341 __glibcxx_check_insert(__hint);
342 return { _Base::insert(__hint.base(), std::move(__nh)), this };
343 }
344
345 using _Base::merge;
346#endif // C++17
347
348#if __cplusplus >= 201103L
349 _GLIBCXX_ABI_TAG_CXX11
350 iterator
351 erase(const_iterator __position)
352 {
353 __glibcxx_check_erase(__position);
354 return { erase(__position.base()), this };
355 }
356
357 _Base_iterator
358 erase(_Base_const_iterator __position)
359 {
360 __glibcxx_check_erase2(__position);
361 this->_M_invalidate_if(_Equal(__position));
362 return _Base::erase(__position);
363 }
364#else
365 void
366 erase(iterator __position)
367 {
368 __glibcxx_check_erase(__position);
369 this->_M_invalidate_if(_Equal(__position.base()));
370 _Base::erase(__position.base());
371 }
372#endif
373
374 size_type
375 erase(const key_type& __x)
376 {
377 std::pair<_Base_iterator, _Base_iterator> __victims =
378 _Base::equal_range(__x);
379 size_type __count = 0;
380 _Base_iterator __victim = __victims.first;
381 while (__victim != __victims.second)
382 {
383 this->_M_invalidate_if(_Equal(__victim));
384 _Base::erase(__victim++);
385 ++__count;
386 }
387 return __count;
388 }
389
390#if __cplusplus >= 201103L
391 _GLIBCXX_ABI_TAG_CXX11
392 iterator
393 erase(const_iterator __first, const_iterator __last)
394 {
395 // _GLIBCXX_RESOLVE_LIB_DEFECTS
396 // 151. can't currently clear() empty container
397 __glibcxx_check_erase_range(__first, __last);
398 for (_Base_const_iterator __victim = __first.base();
399 __victim != __last.base(); ++__victim)
400 {
401 _GLIBCXX_DEBUG_VERIFY(__victim != _Base::cend(),
402 _M_message(__gnu_debug::__msg_valid_range)
403 ._M_iterator(__first, "first")
404 ._M_iterator(__last, "last"));
405 this->_M_invalidate_if(_Equal(__victim));
406 }
407
408 return { _Base::erase(__first.base(), __last.base()), this };
409 }
410#else
411 void
412 erase(iterator __first, iterator __last)
413 {
414 // _GLIBCXX_RESOLVE_LIB_DEFECTS
415 // 151. can't currently clear() empty container
416 __glibcxx_check_erase_range(__first, __last);
417 for (_Base_iterator __victim = __first.base();
418 __victim != __last.base(); ++__victim)
419 {
420 _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(),
421 _M_message(__gnu_debug::__msg_valid_range)
422 ._M_iterator(__first, "first")
423 ._M_iterator(__last, "last"));
424 this->_M_invalidate_if(_Equal(__victim));
425 }
426 _Base::erase(__first.base(), __last.base());
427 }
428#endif
429
430 void
431 swap(multiset& __x)
432 _GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) )
433 {
434 _Safe::_M_swap(__x);
435 _Base::swap(__x);
436 }
437
438 void
439 clear() _GLIBCXX_NOEXCEPT
440 {
441 this->_M_invalidate_all();
442 _Base::clear();
443 }
444
445 // observers:
446 using _Base::key_comp;
447 using _Base::value_comp;
448
449 // multiset operations:
450 iterator
451 find(const key_type& __x)
452 { return iterator(_Base::find(__x), this); }
453
454 // _GLIBCXX_RESOLVE_LIB_DEFECTS
455 // 214. set::find() missing const overload
456 const_iterator
457 find(const key_type& __x) const
458 { return const_iterator(_Base::find(__x), this); }
459
460#if __cplusplus > 201103L
461 template<typename _Kt,
462 typename _Req =
463 typename __has_is_transparent<_Compare, _Kt>::type>
464 iterator
465 find(const _Kt& __x)
466 { return { _Base::find(__x), this }; }
467
468 template<typename _Kt,
469 typename _Req =
470 typename __has_is_transparent<_Compare, _Kt>::type>
471 const_iterator
472 find(const _Kt& __x) const
473 { return { _Base::find(__x), this }; }
474#endif
475
476 using _Base::count;
477
478 iterator
479 lower_bound(const key_type& __x)
480 { return iterator(_Base::lower_bound(__x), this); }
481
482 // _GLIBCXX_RESOLVE_LIB_DEFECTS
483 // 214. set::find() missing const overload
484 const_iterator
485 lower_bound(const key_type& __x) const
486 { return const_iterator(_Base::lower_bound(__x), this); }
487
488#if __cplusplus > 201103L
489 template<typename _Kt,
490 typename _Req =
491 typename __has_is_transparent<_Compare, _Kt>::type>
492 iterator
493 lower_bound(const _Kt& __x)
494 { return { _Base::lower_bound(__x), this }; }
495
496 template<typename _Kt,
497 typename _Req =
498 typename __has_is_transparent<_Compare, _Kt>::type>
499 const_iterator
500 lower_bound(const _Kt& __x) const
501 { return { _Base::lower_bound(__x), this }; }
502#endif
503
504 iterator
505 upper_bound(const key_type& __x)
506 { return iterator(_Base::upper_bound(__x), this); }
507
508 // _GLIBCXX_RESOLVE_LIB_DEFECTS
509 // 214. set::find() missing const overload
510 const_iterator
511 upper_bound(const key_type& __x) const
512 { return const_iterator(_Base::upper_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 upper_bound(const _Kt& __x)
520 { return { _Base::upper_bound(__x), this }; }
521
522 template<typename _Kt,
523 typename _Req =
524 typename __has_is_transparent<_Compare, _Kt>::type>
525 const_iterator
526 upper_bound(const _Kt& __x) const
527 { return { _Base::upper_bound(__x), this }; }
528#endif
529
530 std::pair<iterator,iterator>
531 equal_range(const key_type& __x)
532 {
533 std::pair<_Base_iterator, _Base_iterator> __res =
534 _Base::equal_range(__x);
535 return std::make_pair(iterator(__res.first, this),
536 iterator(__res.second, this));
537 }
538
539 // _GLIBCXX_RESOLVE_LIB_DEFECTS
540 // 214. set::find() missing const overload
541 std::pair<const_iterator,const_iterator>
542 equal_range(const key_type& __x) const
543 {
544 std::pair<_Base_const_iterator, _Base_const_iterator> __res =
545 _Base::equal_range(__x);
546 return std::make_pair(const_iterator(__res.first, this),
547 const_iterator(__res.second, this));
548 }
549
550#if __cplusplus > 201103L
551 template<typename _Kt,
552 typename _Req =
553 typename __has_is_transparent<_Compare, _Kt>::type>
554 std::pair<iterator, iterator>
555 equal_range(const _Kt& __x)
556 {
557 auto __res = _Base::equal_range(__x);
558 return { { __res.first, this }, { __res.second, this } };
559 }
560
561 template<typename _Kt,
562 typename _Req =
563 typename __has_is_transparent<_Compare, _Kt>::type>
564 std::pair<const_iterator, const_iterator>
565 equal_range(const _Kt& __x) const
566 {
567 auto __res = _Base::equal_range(__x);
568 return { { __res.first, this }, { __res.second, this } };
569 }
570#endif
571
572 _Base&
573 _M_base() _GLIBCXX_NOEXCEPT { return *this; }
574
575 const _Base&
576 _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
577 };
578
579#if __cpp_deduction_guides >= 201606
580
581 template<typename _InputIterator,
582 typename _Compare =
583 less<typename iterator_traits<_InputIterator>::value_type>,
584 typename _Allocator =
585 allocator<typename iterator_traits<_InputIterator>::value_type>,
586 typename = _RequireInputIter<_InputIterator>,
587 typename = _RequireNotAllocator<_Compare>,
588 typename = _RequireAllocator<_Allocator>>
589 multiset(_InputIterator, _InputIterator,
590 _Compare = _Compare(), _Allocator = _Allocator())
591 -> multiset<typename iterator_traits<_InputIterator>::value_type,
592 _Compare, _Allocator>;
593
594 template<typename _Key,
595 typename _Compare = less<_Key>,
596 typename _Allocator = allocator<_Key>,
597 typename = _RequireNotAllocator<_Compare>,
598 typename = _RequireAllocator<_Allocator>>
599 multiset(initializer_list<_Key>,
600 _Compare = _Compare(), _Allocator = _Allocator())
601 -> multiset<_Key, _Compare, _Allocator>;
602
603 template<typename _InputIterator, typename _Allocator,
604 typename = _RequireInputIter<_InputIterator>,
605 typename = _RequireAllocator<_Allocator>>
606 multiset(_InputIterator, _InputIterator, _Allocator)
607 -> multiset<typename iterator_traits<_InputIterator>::value_type,
608 less<typename iterator_traits<_InputIterator>::value_type>,
609 _Allocator>;
610
611 template<typename _Key, typename _Allocator,
612 typename = _RequireAllocator<_Allocator>>
613 multiset(initializer_list<_Key>, _Allocator)
614 -> multiset<_Key, less<_Key>, _Allocator>;
615
616#if __glibcxx_containers_ranges // C++ >= 23
617 template<ranges::input_range _Rg,
618 __not_allocator_like _Compare = less<ranges::range_value_t<_Rg>>,
619 __allocator_like _Alloc = std::allocator<ranges::range_value_t<_Rg>>>
620 multiset(from_range_t, _Rg&&, _Compare = _Compare(), _Alloc = _Alloc())
621 -> multiset<ranges::range_value_t<_Rg>, _Compare, _Alloc>;
622
623 template<ranges::input_range _Rg, __allocator_like _Alloc>
624 multiset(from_range_t, _Rg&&, _Alloc)
625 -> multiset<ranges::range_value_t<_Rg>, less<ranges::range_value_t<_Rg>>, _Alloc>;
626#endif
627#endif // deduction guides
628
629 template<typename _Key, typename _Compare, typename _Allocator>
630 inline bool
631 operator==(const multiset<_Key, _Compare, _Allocator>& __lhs,
632 const multiset<_Key, _Compare, _Allocator>& __rhs)
633 { return __lhs._M_base() == __rhs._M_base(); }
634
635#if __cpp_lib_three_way_comparison
636 template<typename _Key, typename _Compare, typename _Alloc>
637 inline __detail::__synth3way_t<_Key>
638 operator<=>(const multiset<_Key, _Compare, _Alloc>& __lhs,
639 const multiset<_Key, _Compare, _Alloc>& __rhs)
640 { return __lhs._M_base() <=> __rhs._M_base(); }
641#else
642 template<typename _Key, typename _Compare, typename _Allocator>
643 inline bool
644 operator!=(const multiset<_Key, _Compare, _Allocator>& __lhs,
645 const multiset<_Key, _Compare, _Allocator>& __rhs)
646 { return __lhs._M_base() != __rhs._M_base(); }
647
648 template<typename _Key, typename _Compare, typename _Allocator>
649 inline bool
650 operator<(const multiset<_Key, _Compare, _Allocator>& __lhs,
651 const multiset<_Key, _Compare, _Allocator>& __rhs)
652 { return __lhs._M_base() < __rhs._M_base(); }
653
654 template<typename _Key, typename _Compare, typename _Allocator>
655 inline bool
656 operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs,
657 const multiset<_Key, _Compare, _Allocator>& __rhs)
658 { return __lhs._M_base() <= __rhs._M_base(); }
659
660 template<typename _Key, typename _Compare, typename _Allocator>
661 inline bool
662 operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs,
663 const multiset<_Key, _Compare, _Allocator>& __rhs)
664 { return __lhs._M_base() >= __rhs._M_base(); }
665
666 template<typename _Key, typename _Compare, typename _Allocator>
667 inline bool
668 operator>(const multiset<_Key, _Compare, _Allocator>& __lhs,
669 const multiset<_Key, _Compare, _Allocator>& __rhs)
670 { return __lhs._M_base() > __rhs._M_base(); }
671#endif // three-way comparison
672
673 template<typename _Key, typename _Compare, typename _Allocator>
674 void
675 swap(multiset<_Key, _Compare, _Allocator>& __x,
676 multiset<_Key, _Compare, _Allocator>& __y)
677 _GLIBCXX_NOEXCEPT_IF(noexcept(__x.swap(__y)))
678 { return __x.swap(__y); }
679
680} // namespace __debug
681} // namespace std
682
683#endif
__glibcxx_check_insert
#define __glibcxx_check_insert(_Position)
Definition macros.h:143
__glibcxx_check_erase_range
#define __glibcxx_check_erase_range(_First, _Last)
Definition macros.h:245
__glibcxx_check_erase
#define __glibcxx_check_erase(_Position)
Definition macros.h:209
std::chrono::operator<=
constexpr bool operator<=(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
Definition chrono.h:859
std::chrono::operator>=
constexpr bool operator>=(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
Definition chrono.h:873
std::chrono::operator<
constexpr bool operator<(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
Definition chrono.h:826
std::chrono::operator>
constexpr bool operator>(const duration< _Rep1, _Period1 > &__lhs, const duration< _Rep2, _Period2 > &__rhs)
Definition chrono.h:866
std::pair::pair
pair(_T1, _T2) -> pair< _T1, _T2 >
Two pairs are equal iff their members are equal.
std::make_pair
constexpr pair< typename __decay_and_strip< _T1 >::__type, typename __decay_and_strip< _T2 >::__type > make_pair(_T1 &&__x, _T2 &&__y)
A convenience wrapper for creating a pair from two objects.
Definition stl_pair.h:1164
std::declval
auto declval() noexcept -> decltype(__declval< _Tp >(0))
Definition type_traits:2609
std::move
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
Definition move.h:138
std::forward
constexpr _Tp && forward(typename std::remove_reference< _Tp >::type &__t) noexcept
Forward an lvalue.
Definition move.h:72
std
ISO C++ entities toplevel namespace is std.
__gnu_debug::__base
constexpr _Iterator __base(_Iterator __it)
Definition helper_functions.h:320
std::__debug
GNU debug code, replaces standard behavior with debug behavior.
std::pair::first
_T1 first
The first member.
Definition stl_pair.h:308
std::pair::second
_T2 second
The second member.
Definition stl_pair.h:309
std::__debug::multiset
Class std::multiset with safety/checking/debug instrumentation.
Definition debug/set:39