source: Daodan/MSYS2/mingw32/include/c++/11.2.0/debug/map.h@ 1194

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1// Debugging map implementation -*- C++ -*-
2
3// Copyright (C) 2003-2021 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/map.h
26 * This file is a GNU debug extension to the Standard C++ Library.
27 */
28
29#ifndef _GLIBCXX_DEBUG_MAP_H
30#define _GLIBCXX_DEBUG_MAP_H 1
31
32#include <debug/safe_sequence.h>
33#include <debug/safe_container.h>
34#include <debug/safe_iterator.h>
35#include <utility>
36
37namespace std _GLIBCXX_VISIBILITY(default)
38{
39namespace __debug
40{
41 /// Class std::map 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 map
45 : public __gnu_debug::_Safe_container<
46 map<_Key, _Tp, _Compare, _Allocator>, _Allocator,
47 __gnu_debug::_Safe_node_sequence>,
48 public _GLIBCXX_STD_C::map<_Key, _Tp, _Compare, _Allocator>
49 {
50 typedef _GLIBCXX_STD_C::map<
51 _Key, _Tp, _Compare, _Allocator> _Base;
52 typedef __gnu_debug::_Safe_container<
53 map, _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 map(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, map>
83 iterator;
84 typedef __gnu_debug::_Safe_iterator<_Base_const_iterator, map>
85 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 map() : _Base() { }
98
99 map(const map& __x)
100 : _Base(__x) { }
101
102 ~map() { }
103#else
104 map() = default;
105 map(const map&) = default;
106 map(map&&) = default;
107
108 map(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 map(const allocator_type& __a)
115 : _Base(__a) { }
116
117 map(const map& __m, const allocator_type& __a)
118 : _Base(__m, __a) { }
119
120 map(map&& __m, const allocator_type& __a)
121 noexcept( noexcept(_Base(std::move(__m._M_base()), __a)) )
122 : _Safe(std::move(__m._M_safe()), __a),
123 _Base(std::move(__m._M_base()), __a) { }
124
125 map(initializer_list<value_type> __l, const allocator_type& __a)
126 : _Base(__l, __a) { }
127
128 template<typename _InputIterator>
129 map(_InputIterator __first, _InputIterator __last,
130 const allocator_type& __a)
131 : _Base(__gnu_debug::__base(
132 __glibcxx_check_valid_constructor_range(__first, __last)),
133 __gnu_debug::__base(__last), __a)
134 { }
135
136 ~map() = default;
137#endif
138
139 map(_Base_ref __x)
140 : _Base(__x._M_ref) { }
141
142 explicit map(const _Compare& __comp,
143 const _Allocator& __a = _Allocator())
144 : _Base(__comp, __a) { }
145
146 template<typename _InputIterator>
147 map(_InputIterator __first, _InputIterator __last,
148 const _Compare& __comp = _Compare(),
149 const _Allocator& __a = _Allocator())
150 : _Base(__gnu_debug::__base(
151 __glibcxx_check_valid_constructor_range(__first, __last)),
152 __gnu_debug::__base(__last),
153 __comp, __a) { }
154
155#if __cplusplus < 201103L
156 map&
157 operator=(const map& __x)
158 {
159 this->_M_safe() = __x;
160 _M_base() = __x;
161 return *this;
162 }
163#else
164 map&
165 operator=(const map&) = default;
166
167 map&
168 operator=(map&&) = default;
169
170 map&
171 operator=(initializer_list<value_type> __l)
172 {
173 _M_base() = __l;
174 this->_M_invalidate_all();
175 return *this;
176 }
177#endif
178
179 // _GLIBCXX_RESOLVE_LIB_DEFECTS
180 // 133. map missing get_allocator()
181 using _Base::get_allocator;
182
183 // iterators:
184 iterator
185 begin() _GLIBCXX_NOEXCEPT
186 { return iterator(_Base::begin(), this); }
187
188 const_iterator
189 begin() const _GLIBCXX_NOEXCEPT
190 { return const_iterator(_Base::begin(), this); }
191
192 iterator
193 end() _GLIBCXX_NOEXCEPT
194 { return iterator(_Base::end(), this); }
195
196 const_iterator
197 end() const _GLIBCXX_NOEXCEPT
198 { return const_iterator(_Base::end(), this); }
199
200 reverse_iterator
201 rbegin() _GLIBCXX_NOEXCEPT
202 { return reverse_iterator(end()); }
203
204 const_reverse_iterator
205 rbegin() const _GLIBCXX_NOEXCEPT
206 { return const_reverse_iterator(end()); }
207
208 reverse_iterator
209 rend() _GLIBCXX_NOEXCEPT
210 { return reverse_iterator(begin()); }
211
212 const_reverse_iterator
213 rend() const _GLIBCXX_NOEXCEPT
214 { return const_reverse_iterator(begin()); }
215
216#if __cplusplus >= 201103L
217 const_iterator
218 cbegin() const noexcept
219 { return const_iterator(_Base::begin(), this); }
220
221 const_iterator
222 cend() const noexcept
223 { return const_iterator(_Base::end(), this); }
224
225 const_reverse_iterator
226 crbegin() const noexcept
227 { return const_reverse_iterator(end()); }
228
229 const_reverse_iterator
230 crend() const noexcept
231 { return const_reverse_iterator(begin()); }
232#endif
233
234 // capacity:
235 using _Base::empty;
236 using _Base::size;
237 using _Base::max_size;
238
239 // 23.3.1.2 element access:
240 using _Base::operator[];
241
242 // _GLIBCXX_RESOLVE_LIB_DEFECTS
243 // DR 464. Suggestion for new member functions in standard containers.
244 using _Base::at;
245
246 // modifiers:
247#if __cplusplus >= 201103L
248 template<typename... _Args>
249 std::pair<iterator, bool>
250 emplace(_Args&&... __args)
251 {
252 auto __res = _Base::emplace(std::forward<_Args>(__args)...);
253 return { { __res.first, this }, __res.second };
254 }
255
256 template<typename... _Args>
257 iterator
258 emplace_hint(const_iterator __pos, _Args&&... __args)
259 {
260 __glibcxx_check_insert(__pos);
261 return
262 {
263 _Base::emplace_hint(__pos.base(), std::forward<_Args>(__args)...),
264 this
265 };
266 }
267#endif
268
269 std::pair<iterator, bool>
270 insert(const value_type& __x)
271 {
272 std::pair<_Base_iterator, bool> __res = _Base::insert(__x);
273 return std::pair<iterator, bool>(iterator(__res.first, this),
274 __res.second);
275 }
276
277#if __cplusplus >= 201103L
278 // _GLIBCXX_RESOLVE_LIB_DEFECTS
279 // 2354. Unnecessary copying when inserting into maps with braced-init
280 std::pair<iterator, bool>
281 insert(value_type&& __x)
282 {
283 auto __res = _Base::insert(std::move(__x));
284 return { { __res.first, this }, __res.second };
285 }
286
287 template<typename _Pair, typename = typename
288 std::enable_if<std::is_constructible<value_type,
289 _Pair&&>::value>::type>
290 std::pair<iterator, bool>
291 insert(_Pair&& __x)
292 {
293 auto __res = _Base::insert(std::forward<_Pair>(__x));
294 return { { __res.first, this }, __res.second };
295 }
296#endif
297
298#if __cplusplus >= 201103L
299 void
300 insert(std::initializer_list<value_type> __list)
301 { _Base::insert(__list); }
302#endif
303
304 iterator
305#if __cplusplus >= 201103L
306 insert(const_iterator __position, const value_type& __x)
307#else
308 insert(iterator __position, const value_type& __x)
309#endif
310 {
311 __glibcxx_check_insert(__position);
312 return iterator(_Base::insert(__position.base(), __x), this);
313 }
314
315#if __cplusplus >= 201103L
316 // _GLIBCXX_RESOLVE_LIB_DEFECTS
317 // 2354. Unnecessary copying when inserting into maps with braced-init
318 iterator
319 insert(const_iterator __position, value_type&& __x)
320 {
321 __glibcxx_check_insert(__position);
322 return { _Base::insert(__position.base(), std::move(__x)), this };
323 }
324
325 template<typename _Pair, typename = typename
326 std::enable_if<std::is_constructible<value_type,
327 _Pair&&>::value>::type>
328 iterator
329 insert(const_iterator __position, _Pair&& __x)
330 {
331 __glibcxx_check_insert(__position);
332 return
333 {
334 _Base::insert(__position.base(), std::forward<_Pair>(__x)),
335 this
336 };
337 }
338#endif
339
340 template<typename _InputIterator>
341 void
342 insert(_InputIterator __first, _InputIterator __last)
343 {
344 typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
345 __glibcxx_check_valid_range2(__first, __last, __dist);
346
347 if (__dist.second >= __gnu_debug::__dp_sign)
348 _Base::insert(__gnu_debug::__unsafe(__first),
349 __gnu_debug::__unsafe(__last));
350 else
351 _Base::insert(__first, __last);
352 }
353
354
355#if __cplusplus > 201402L
356 template <typename... _Args>
357 pair<iterator, bool>
358 try_emplace(const key_type& __k, _Args&&... __args)
359 {
360 auto __res = _Base::try_emplace(__k,
361 std::forward<_Args>(__args)...);
362 return { { __res.first, this }, __res.second };
363 }
364
365 template <typename... _Args>
366 pair<iterator, bool>
367 try_emplace(key_type&& __k, _Args&&... __args)
368 {
369 auto __res = _Base::try_emplace(std::move(__k),
370 std::forward<_Args>(__args)...);
371 return { { __res.first, this }, __res.second };
372 }
373
374 template <typename... _Args>
375 iterator
376 try_emplace(const_iterator __hint, const key_type& __k,
377 _Args&&... __args)
378 {
379 __glibcxx_check_insert(__hint);
380 return
381 {
382 _Base::try_emplace(__hint.base(), __k,
383 std::forward<_Args>(__args)...),
384 this
385 };
386 }
387
388 template <typename... _Args>
389 iterator
390 try_emplace(const_iterator __hint, key_type&& __k, _Args&&... __args)
391 {
392 __glibcxx_check_insert(__hint);
393 return
394 {
395 _Base::try_emplace(__hint.base(), std::move(__k),
396 std::forward<_Args>(__args)...),
397 this
398 };
399 }
400
401 template <typename _Obj>
402 std::pair<iterator, bool>
403 insert_or_assign(const key_type& __k, _Obj&& __obj)
404 {
405 auto __res = _Base::insert_or_assign(__k,
406 std::forward<_Obj>(__obj));
407 return { { __res.first, this }, __res.second };
408 }
409
410 template <typename _Obj>
411 std::pair<iterator, bool>
412 insert_or_assign(key_type&& __k, _Obj&& __obj)
413 {
414 auto __res = _Base::insert_or_assign(std::move(__k),
415 std::forward<_Obj>(__obj));
416 return { { __res.first, this }, __res.second };
417 }
418
419 template <typename _Obj>
420 iterator
421 insert_or_assign(const_iterator __hint,
422 const key_type& __k, _Obj&& __obj)
423 {
424 __glibcxx_check_insert(__hint);
425 return
426 {
427 _Base::insert_or_assign(__hint.base(), __k,
428 std::forward<_Obj>(__obj)),
429 this
430 };
431 }
432
433 template <typename _Obj>
434 iterator
435 insert_or_assign(const_iterator __hint, key_type&& __k, _Obj&& __obj)
436 {
437 __glibcxx_check_insert(__hint);
438 return
439 {
440 _Base::insert_or_assign(__hint.base(), std::move(__k),
441 std::forward<_Obj>(__obj)),
442 this
443 };
444 }
445#endif // C++17
446
447#if __cplusplus > 201402L
448 using node_type = typename _Base::node_type;
449 using insert_return_type = _Node_insert_return<iterator, node_type>;
450
451 node_type
452 extract(const_iterator __position)
453 {
454 __glibcxx_check_erase(__position);
455 this->_M_invalidate_if(_Equal(__position.base()));
456 return _Base::extract(__position.base());
457 }
458
459 node_type
460 extract(const key_type& __key)
461 {
462 const auto __position = find(__key);
463 if (__position != end())
464 return extract(__position);
465 return {};
466 }
467
468 insert_return_type
469 insert(node_type&& __nh)
470 {
471 auto __ret = _Base::insert(std::move(__nh));
472 return
473 { { __ret.position, this }, __ret.inserted, std::move(__ret.node) };
474 }
475
476 iterator
477 insert(const_iterator __hint, node_type&& __nh)
478 {
479 __glibcxx_check_insert(__hint);
480 return { _Base::insert(__hint.base(), std::move(__nh)), this };
481 }
482
483 using _Base::merge;
484#endif // C++17
485
486#if __cplusplus >= 201103L
487 iterator
488 erase(const_iterator __position)
489 {
490 __glibcxx_check_erase(__position);
491 this->_M_invalidate_if(_Equal(__position.base()));
492 return { _Base::erase(__position.base()), this };
493 }
494
495 _GLIBCXX_ABI_TAG_CXX11
496 iterator
497 erase(iterator __position)
498 { return erase(const_iterator(__position)); }
499#else
500 void
501 erase(iterator __position)
502 {
503 __glibcxx_check_erase(__position);
504 this->_M_invalidate_if(_Equal(__position.base()));
505 _Base::erase(__position.base());
506 }
507#endif
508
509 size_type
510 erase(const key_type& __x)
511 {
512 _Base_iterator __victim = _Base::find(__x);
513 if (__victim == _Base::end())
514 return 0;
515 else
516 {
517 this->_M_invalidate_if(_Equal(__victim));
518 _Base::erase(__victim);
519 return 1;
520 }
521 }
522
523#if __cplusplus >= 201103L
524 iterator
525 erase(const_iterator __first, const_iterator __last)
526 {
527 // _GLIBCXX_RESOLVE_LIB_DEFECTS
528 // 151. can't currently clear() empty container
529 __glibcxx_check_erase_range(__first, __last);
530 for (_Base_const_iterator __victim = __first.base();
531 __victim != __last.base(); ++__victim)
532 {
533 _GLIBCXX_DEBUG_VERIFY(__victim != _Base::cend(),
534 _M_message(__gnu_debug::__msg_valid_range)
535 ._M_iterator(__first, "first")
536 ._M_iterator(__last, "last"));
537 this->_M_invalidate_if(_Equal(__victim));
538 }
539
540 return { _Base::erase(__first.base(), __last.base()), this };
541 }
542#else
543 void
544 erase(iterator __first, iterator __last)
545 {
546 // _GLIBCXX_RESOLVE_LIB_DEFECTS
547 // 151. can't currently clear() empty container
548 __glibcxx_check_erase_range(__first, __last);
549 for (_Base_iterator __victim = __first.base();
550 __victim != __last.base(); ++__victim)
551 {
552 _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(),
553 _M_message(__gnu_debug::__msg_valid_range)
554 ._M_iterator(__first, "first")
555 ._M_iterator(__last, "last"));
556 this->_M_invalidate_if(_Equal(__victim));
557 }
558 _Base::erase(__first.base(), __last.base());
559 }
560#endif
561
562 void
563 swap(map& __x)
564 _GLIBCXX_NOEXCEPT_IF( noexcept(declval<_Base&>().swap(__x)) )
565 {
566 _Safe::_M_swap(__x);
567 _Base::swap(__x);
568 }
569
570 void
571 clear() _GLIBCXX_NOEXCEPT
572 {
573 this->_M_invalidate_all();
574 _Base::clear();
575 }
576
577 // observers:
578 using _Base::key_comp;
579 using _Base::value_comp;
580
581 // 23.3.1.3 map operations:
582 iterator
583 find(const key_type& __x)
584 { return iterator(_Base::find(__x), this); }
585
586#if __cplusplus > 201103L
587 template<typename _Kt,
588 typename _Req =
589 typename __has_is_transparent<_Compare, _Kt>::type>
590 iterator
591 find(const _Kt& __x)
592 { return { _Base::find(__x), this }; }
593#endif
594
595 const_iterator
596 find(const key_type& __x) const
597 { return const_iterator(_Base::find(__x), this); }
598
599#if __cplusplus > 201103L
600 template<typename _Kt,
601 typename _Req =
602 typename __has_is_transparent<_Compare, _Kt>::type>
603 const_iterator
604 find(const _Kt& __x) const
605 { return { _Base::find(__x), this }; }
606#endif
607
608 using _Base::count;
609
610 iterator
611 lower_bound(const key_type& __x)
612 { return iterator(_Base::lower_bound(__x), this); }
613
614#if __cplusplus > 201103L
615 template<typename _Kt,
616 typename _Req =
617 typename __has_is_transparent<_Compare, _Kt>::type>
618 iterator
619 lower_bound(const _Kt& __x)
620 { return { _Base::lower_bound(__x), this }; }
621#endif
622
623 const_iterator
624 lower_bound(const key_type& __x) const
625 { return const_iterator(_Base::lower_bound(__x), this); }
626
627#if __cplusplus > 201103L
628 template<typename _Kt,
629 typename _Req =
630 typename __has_is_transparent<_Compare, _Kt>::type>
631 const_iterator
632 lower_bound(const _Kt& __x) const
633 { return { _Base::lower_bound(__x), this }; }
634#endif
635
636 iterator
637 upper_bound(const key_type& __x)
638 { return iterator(_Base::upper_bound(__x), this); }
639
640#if __cplusplus > 201103L
641 template<typename _Kt,
642 typename _Req =
643 typename __has_is_transparent<_Compare, _Kt>::type>
644 iterator
645 upper_bound(const _Kt& __x)
646 { return { _Base::upper_bound(__x), this }; }
647#endif
648
649 const_iterator
650 upper_bound(const key_type& __x) const
651 { return const_iterator(_Base::upper_bound(__x), this); }
652
653#if __cplusplus > 201103L
654 template<typename _Kt,
655 typename _Req =
656 typename __has_is_transparent<_Compare, _Kt>::type>
657 const_iterator
658 upper_bound(const _Kt& __x) const
659 { return { _Base::upper_bound(__x), this }; }
660#endif
661
662 std::pair<iterator,iterator>
663 equal_range(const key_type& __x)
664 {
665 std::pair<_Base_iterator, _Base_iterator> __res =
666 _Base::equal_range(__x);
667 return std::make_pair(iterator(__res.first, this),
668 iterator(__res.second, this));
669 }
670
671#if __cplusplus > 201103L
672 template<typename _Kt,
673 typename _Req =
674 typename __has_is_transparent<_Compare, _Kt>::type>
675 std::pair<iterator, iterator>
676 equal_range(const _Kt& __x)
677 {
678 auto __res = _Base::equal_range(__x);
679 return { { __res.first, this }, { __res.second, this } };
680 }
681#endif
682
683 std::pair<const_iterator,const_iterator>
684 equal_range(const key_type& __x) const
685 {
686 std::pair<_Base_const_iterator, _Base_const_iterator> __res =
687 _Base::equal_range(__x);
688 return std::make_pair(const_iterator(__res.first, this),
689 const_iterator(__res.second, this));
690 }
691
692#if __cplusplus > 201103L
693 template<typename _Kt,
694 typename _Req =
695 typename __has_is_transparent<_Compare, _Kt>::type>
696 std::pair<const_iterator, const_iterator>
697 equal_range(const _Kt& __x) const
698 {
699 auto __res = _Base::equal_range(__x);
700 return { { __res.first, this }, { __res.second, this } };
701 }
702#endif
703
704 _Base&
705 _M_base() _GLIBCXX_NOEXCEPT { return *this; }
706
707 const _Base&
708 _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
709 };
710
711#if __cpp_deduction_guides >= 201606
712
713 template<typename _InputIterator,
714 typename _Compare = less<__iter_key_t<_InputIterator>>,
715 typename _Allocator = allocator<__iter_to_alloc_t<_InputIterator>>,
716 typename = _RequireInputIter<_InputIterator>,
717 typename = _RequireNotAllocator<_Compare>,
718 typename = _RequireAllocator<_Allocator>>
719 map(_InputIterator, _InputIterator,
720 _Compare = _Compare(), _Allocator = _Allocator())
721 -> map<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>,
722 _Compare, _Allocator>;
723
724 template<typename _Key, typename _Tp, typename _Compare = less<_Key>,
725 typename _Allocator = allocator<pair<const _Key, _Tp>>,
726 typename = _RequireNotAllocator<_Compare>,
727 typename = _RequireAllocator<_Allocator>>
728 map(initializer_list<pair<_Key, _Tp>>,
729 _Compare = _Compare(), _Allocator = _Allocator())
730 -> map<_Key, _Tp, _Compare, _Allocator>;
731
732 template <typename _InputIterator, typename _Allocator,
733 typename = _RequireInputIter<_InputIterator>,
734 typename = _RequireAllocator<_Allocator>>
735 map(_InputIterator, _InputIterator, _Allocator)
736 -> map<__iter_key_t<_InputIterator>, __iter_val_t<_InputIterator>,
737 less<__iter_key_t<_InputIterator>>, _Allocator>;
738
739 template<typename _Key, typename _Tp, typename _Allocator,
740 typename = _RequireAllocator<_Allocator>>
741 map(initializer_list<pair<_Key, _Tp>>, _Allocator)
742 -> map<_Key, _Tp, less<_Key>, _Allocator>;
743
744#endif // deduction guides
745
746 template<typename _Key, typename _Tp,
747 typename _Compare, typename _Allocator>
748 inline bool
749 operator==(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
750 const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
751 { return __lhs._M_base() == __rhs._M_base(); }
752
753#if __cpp_lib_three_way_comparison
754 template<typename _Key, typename _Tp, typename _Compare, typename _Alloc>
755 inline __detail::__synth3way_t<pair<const _Key, _Tp>>
756 operator<=>(const map<_Key, _Tp, _Compare, _Alloc>& __lhs,
757 const map<_Key, _Tp, _Compare, _Alloc>& __rhs)
758 { return __lhs._M_base() <=> __rhs._M_base(); }
759#else
760 template<typename _Key, typename _Tp,
761 typename _Compare, typename _Allocator>
762 inline bool
763 operator!=(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
764 const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
765 { return __lhs._M_base() != __rhs._M_base(); }
766
767 template<typename _Key, typename _Tp,
768 typename _Compare, typename _Allocator>
769 inline bool
770 operator<(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
771 const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
772 { return __lhs._M_base() < __rhs._M_base(); }
773
774 template<typename _Key, typename _Tp,
775 typename _Compare, typename _Allocator>
776 inline bool
777 operator<=(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
778 const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
779 { return __lhs._M_base() <= __rhs._M_base(); }
780
781 template<typename _Key, typename _Tp,
782 typename _Compare, typename _Allocator>
783 inline bool
784 operator>=(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
785 const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
786 { return __lhs._M_base() >= __rhs._M_base(); }
787
788 template<typename _Key, typename _Tp,
789 typename _Compare, typename _Allocator>
790 inline bool
791 operator>(const map<_Key, _Tp, _Compare, _Allocator>& __lhs,
792 const map<_Key, _Tp, _Compare, _Allocator>& __rhs)
793 { return __lhs._M_base() > __rhs._M_base(); }
794#endif // three-way comparison
795
796 template<typename _Key, typename _Tp,
797 typename _Compare, typename _Allocator>
798 inline void
799 swap(map<_Key, _Tp, _Compare, _Allocator>& __lhs,
800 map<_Key, _Tp, _Compare, _Allocator>& __rhs)
801 _GLIBCXX_NOEXCEPT_IF(noexcept(__lhs.swap(__rhs)))
802 { __lhs.swap(__rhs); }
803
804} // namespace __debug
805} // namespace std
806
807#endif
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