2 //===----------------------------------------------------------------------===//
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
8 //===----------------------------------------------------------------------===//
20 template <class Key, class T, class Compare = less<Key>,
21 class Allocator = allocator<pair<const Key, T>>>
27 typedef T mapped_type;
28 typedef pair<const key_type, mapped_type> value_type;
29 typedef Compare key_compare;
30 typedef Allocator allocator_type;
31 typedef typename allocator_type::reference reference;
32 typedef typename allocator_type::const_reference const_reference;
33 typedef typename allocator_type::pointer pointer;
34 typedef typename allocator_type::const_pointer const_pointer;
35 typedef typename allocator_type::size_type size_type;
36 typedef typename allocator_type::difference_type difference_type;
38 typedef implementation-defined iterator;
39 typedef implementation-defined const_iterator;
40 typedef std::reverse_iterator<iterator> reverse_iterator;
41 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
42 typedef unspecified node_type; // C++17
43 typedef INSERT_RETURN_TYPE<iterator, node_type> insert_return_type; // C++17
51 value_compare(key_compare c);
53 typedef bool result_type; // deprecated in C++17, removed in C++20
54 typedef value_type first_argument_type; // deprecated in C++17, removed in C++20
55 typedef value_type second_argument_type; // deprecated in C++17, removed in C++20
56 bool operator()(const value_type& x, const value_type& y) const;
59 // construct/copy/destroy:
62 is_nothrow_default_constructible<allocator_type>::value &&
63 is_nothrow_default_constructible<key_compare>::value &&
64 is_nothrow_copy_constructible<key_compare>::value);
65 explicit map(const key_compare& comp);
66 map(const key_compare& comp, const allocator_type& a);
67 template <class InputIterator>
68 map(InputIterator first, InputIterator last,
69 const key_compare& comp = key_compare());
70 template <class InputIterator>
71 map(InputIterator first, InputIterator last,
72 const key_compare& comp, const allocator_type& a);
73 template<container-compatible-range<value_type> R>
74 map(from_range_t, R&& rg, const Compare& comp = Compare(), const Allocator& = Allocator()); // C++23
78 is_nothrow_move_constructible<allocator_type>::value &&
79 is_nothrow_move_constructible<key_compare>::value);
80 explicit map(const allocator_type& a);
81 map(const map& m, const allocator_type& a);
82 map(map&& m, const allocator_type& a);
83 map(initializer_list<value_type> il, const key_compare& comp = key_compare());
84 map(initializer_list<value_type> il, const key_compare& comp, const allocator_type& a);
85 template <class InputIterator>
86 map(InputIterator first, InputIterator last, const allocator_type& a)
87 : map(first, last, Compare(), a) {} // C++14
88 template<container-compatible-range<value_type> R>
89 map(from_range_t, R&& rg, const Allocator& a))
90 : map(from_range, std::forward<R>(rg), Compare(), a) { } // C++23
91 map(initializer_list<value_type> il, const allocator_type& a)
92 : map(il, Compare(), a) {} // C++14
95 map& operator=(const map& m);
96 map& operator=(map&& m)
98 allocator_type::propagate_on_container_move_assignment::value &&
99 is_nothrow_move_assignable<allocator_type>::value &&
100 is_nothrow_move_assignable<key_compare>::value);
101 map& operator=(initializer_list<value_type> il);
104 iterator begin() noexcept;
105 const_iterator begin() const noexcept;
106 iterator end() noexcept;
107 const_iterator end() const noexcept;
109 reverse_iterator rbegin() noexcept;
110 const_reverse_iterator rbegin() const noexcept;
111 reverse_iterator rend() noexcept;
112 const_reverse_iterator rend() const noexcept;
114 const_iterator cbegin() const noexcept;
115 const_iterator cend() const noexcept;
116 const_reverse_iterator crbegin() const noexcept;
117 const_reverse_iterator crend() const noexcept;
120 bool empty() const noexcept;
121 size_type size() const noexcept;
122 size_type max_size() const noexcept;
125 mapped_type& operator[](const key_type& k);
126 mapped_type& operator[](key_type&& k);
128 mapped_type& at(const key_type& k);
129 const mapped_type& at(const key_type& k) const;
132 template <class... Args>
133 pair<iterator, bool> emplace(Args&&... args);
134 template <class... Args>
135 iterator emplace_hint(const_iterator position, Args&&... args);
136 pair<iterator, bool> insert(const value_type& v);
137 pair<iterator, bool> insert( value_type&& v); // C++17
139 pair<iterator, bool> insert(P&& p);
140 iterator insert(const_iterator position, const value_type& v);
141 iterator insert(const_iterator position, value_type&& v); // C++17
143 iterator insert(const_iterator position, P&& p);
144 template <class InputIterator>
145 void insert(InputIterator first, InputIterator last);
146 template<container-compatible-range<value_type> R>
147 void insert_range(R&& rg); // C++23
148 void insert(initializer_list<value_type> il);
150 node_type extract(const_iterator position); // C++17
151 node_type extract(const key_type& x); // C++17
152 insert_return_type insert(node_type&& nh); // C++17
153 iterator insert(const_iterator hint, node_type&& nh); // C++17
155 template <class... Args>
156 pair<iterator, bool> try_emplace(const key_type& k, Args&&... args); // C++17
157 template <class... Args>
158 pair<iterator, bool> try_emplace(key_type&& k, Args&&... args); // C++17
159 template <class... Args>
160 iterator try_emplace(const_iterator hint, const key_type& k, Args&&... args); // C++17
161 template <class... Args>
162 iterator try_emplace(const_iterator hint, key_type&& k, Args&&... args); // C++17
164 pair<iterator, bool> insert_or_assign(const key_type& k, M&& obj); // C++17
166 pair<iterator, bool> insert_or_assign(key_type&& k, M&& obj); // C++17
168 iterator insert_or_assign(const_iterator hint, const key_type& k, M&& obj); // C++17
170 iterator insert_or_assign(const_iterator hint, key_type&& k, M&& obj); // C++17
172 iterator erase(const_iterator position);
173 iterator erase(iterator position); // C++14
174 size_type erase(const key_type& k);
175 iterator erase(const_iterator first, const_iterator last);
176 void clear() noexcept;
179 void merge(map<Key, T, C2, Allocator>& source); // C++17
181 void merge(map<Key, T, C2, Allocator>&& source); // C++17
183 void merge(multimap<Key, T, C2, Allocator>& source); // C++17
185 void merge(multimap<Key, T, C2, Allocator>&& source); // C++17
188 noexcept(allocator_traits<allocator_type>::is_always_equal::value &&
189 is_nothrow_swappable<key_compare>::value); // C++17
192 allocator_type get_allocator() const noexcept;
193 key_compare key_comp() const;
194 value_compare value_comp() const;
197 iterator find(const key_type& k);
198 const_iterator find(const key_type& k) const;
200 iterator find(const K& x); // C++14
202 const_iterator find(const K& x) const; // C++14
205 size_type count(const K& x) const; // C++14
206 size_type count(const key_type& k) const;
208 bool contains(const key_type& x) const; // C++20
209 template<class K> bool contains(const K& x) const; // C++20
211 iterator lower_bound(const key_type& k);
212 const_iterator lower_bound(const key_type& k) const;
214 iterator lower_bound(const K& x); // C++14
216 const_iterator lower_bound(const K& x) const; // C++14
218 iterator upper_bound(const key_type& k);
219 const_iterator upper_bound(const key_type& k) const;
221 iterator upper_bound(const K& x); // C++14
223 const_iterator upper_bound(const K& x) const; // C++14
225 pair<iterator,iterator> equal_range(const key_type& k);
226 pair<const_iterator,const_iterator> equal_range(const key_type& k) const;
228 pair<iterator,iterator> equal_range(const K& x); // C++14
230 pair<const_iterator,const_iterator> equal_range(const K& x) const; // C++14
233 template <class InputIterator,
234 class Compare = less<iter_key_t<InputIterator>>,
235 class Allocator = allocator<iter_to_alloc_t<InputIterator>>>
236 map(InputIterator, InputIterator, Compare = Compare(), Allocator = Allocator())
237 -> map<iter_key_t<InputIterator>, iter_val_t<InputIterator>, Compare, Allocator>; // C++17
239 template<ranges::input_range R, class Compare = less<range-key-type<R>,
240 class Allocator = allocator<range-to-alloc-type<R>>>
241 map(from_range_t, R&&, Compare = Compare(), Allocator = Allocator())
242 -> map<range-key-type<R>, range-mapped-type<R>, Compare, Allocator>; // C++23
244 template<class Key, class T, class Compare = less<Key>,
245 class Allocator = allocator<pair<const Key, T>>>
246 map(initializer_list<pair<const Key, T>>, Compare = Compare(), Allocator = Allocator())
247 -> map<Key, T, Compare, Allocator>; // C++17
249 template <class InputIterator, class Allocator>
250 map(InputIterator, InputIterator, Allocator)
251 -> map<iter_key_t<InputIterator>, iter_val_t<InputIterator>, less<iter_key_t<InputIterator>>,
254 template<ranges::input_range R, class Allocator>
255 map(from_range_t, R&&, Allocator)
256 -> map<range-key-type<R>, range-mapped-type<R>, less<range-key-type<R>>, Allocator>; // C++23
258 template<class Key, class T, class Allocator>
259 map(initializer_list<pair<const Key, T>>, Allocator) -> map<Key, T, less<Key>, Allocator>; // C++17
261 template <class Key, class T, class Compare, class Allocator>
263 operator==(const map<Key, T, Compare, Allocator>& x,
264 const map<Key, T, Compare, Allocator>& y);
266 template <class Key, class T, class Compare, class Allocator>
268 operator< (const map<Key, T, Compare, Allocator>& x,
269 const map<Key, T, Compare, Allocator>& y); // removed in C++20
271 template <class Key, class T, class Compare, class Allocator>
273 operator!=(const map<Key, T, Compare, Allocator>& x,
274 const map<Key, T, Compare, Allocator>& y); // removed in C++20
276 template <class Key, class T, class Compare, class Allocator>
278 operator> (const map<Key, T, Compare, Allocator>& x,
279 const map<Key, T, Compare, Allocator>& y); // removed in C++20
281 template <class Key, class T, class Compare, class Allocator>
283 operator>=(const map<Key, T, Compare, Allocator>& x,
284 const map<Key, T, Compare, Allocator>& y); // removed in C++20
286 template <class Key, class T, class Compare, class Allocator>
288 operator<=(const map<Key, T, Compare, Allocator>& x,
289 const map<Key, T, Compare, Allocator>& y); // removed in C++20
291 template<class Key, class T, class Compare, class Allocator>
292 synth-three-way-result<pair<const Key, T>>
293 operator<=>(const map<Key, T, Compare, Allocator>& x,
294 const map<Key, T, Compare, Allocator>& y); // since C++20
296 // specialized algorithms:
297 template <class Key, class T, class Compare, class Allocator>
299 swap(map<Key, T, Compare, Allocator>& x, map<Key, T, Compare, Allocator>& y)
300 noexcept(noexcept(x.swap(y)));
302 template <class Key, class T, class Compare, class Allocator, class Predicate>
303 typename map<Key, T, Compare, Allocator>::size_type
304 erase_if(map<Key, T, Compare, Allocator>& c, Predicate pred); // C++20
307 template <class Key, class T, class Compare = less<Key>,
308 class Allocator = allocator<pair<const Key, T>>>
313 typedef Key key_type;
314 typedef T mapped_type;
315 typedef pair<const key_type,mapped_type> value_type;
316 typedef Compare key_compare;
317 typedef Allocator allocator_type;
318 typedef typename allocator_type::reference reference;
319 typedef typename allocator_type::const_reference const_reference;
320 typedef typename allocator_type::size_type size_type;
321 typedef typename allocator_type::difference_type difference_type;
322 typedef typename allocator_type::pointer pointer;
323 typedef typename allocator_type::const_pointer const_pointer;
325 typedef implementation-defined iterator;
326 typedef implementation-defined const_iterator;
327 typedef std::reverse_iterator<iterator> reverse_iterator;
328 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
329 typedef unspecified node_type; // C++17
333 friend class multimap;
336 value_compare(key_compare c);
338 typedef bool result_type; // deprecated in C++17, removed in C++20
339 typedef value_type first_argument_type; // deprecated in C++17, removed in C++20
340 typedef value_type second_argument_type; // deprecated in C++17, removed in C++20
341 bool operator()(const value_type& x, const value_type& y) const;
344 // construct/copy/destroy:
347 is_nothrow_default_constructible<allocator_type>::value &&
348 is_nothrow_default_constructible<key_compare>::value &&
349 is_nothrow_copy_constructible<key_compare>::value);
350 explicit multimap(const key_compare& comp);
351 multimap(const key_compare& comp, const allocator_type& a);
352 template <class InputIterator>
353 multimap(InputIterator first, InputIterator last, const key_compare& comp);
354 template <class InputIterator>
355 multimap(InputIterator first, InputIterator last, const key_compare& comp,
356 const allocator_type& a);
357 template<container-compatible-range<value_type> R>
358 multimap(from_range_t, R&& rg,
359 const Compare& comp = Compare(), const Allocator& = Allocator()); // C++23
360 multimap(const multimap& m);
361 multimap(multimap&& m)
363 is_nothrow_move_constructible<allocator_type>::value &&
364 is_nothrow_move_constructible<key_compare>::value);
365 explicit multimap(const allocator_type& a);
366 multimap(const multimap& m, const allocator_type& a);
367 multimap(multimap&& m, const allocator_type& a);
368 multimap(initializer_list<value_type> il, const key_compare& comp = key_compare());
369 multimap(initializer_list<value_type> il, const key_compare& comp,
370 const allocator_type& a);
371 template <class InputIterator>
372 multimap(InputIterator first, InputIterator last, const allocator_type& a)
373 : multimap(first, last, Compare(), a) {} // C++14
374 template<container-compatible-range<value_type> R>
375 multimap(from_range_t, R&& rg, const Allocator& a))
376 : multimap(from_range, std::forward<R>(rg), Compare(), a) { } // C++23
377 multimap(initializer_list<value_type> il, const allocator_type& a)
378 : multimap(il, Compare(), a) {} // C++14
381 multimap& operator=(const multimap& m);
382 multimap& operator=(multimap&& m)
384 allocator_type::propagate_on_container_move_assignment::value &&
385 is_nothrow_move_assignable<allocator_type>::value &&
386 is_nothrow_move_assignable<key_compare>::value);
387 multimap& operator=(initializer_list<value_type> il);
390 iterator begin() noexcept;
391 const_iterator begin() const noexcept;
392 iterator end() noexcept;
393 const_iterator end() const noexcept;
395 reverse_iterator rbegin() noexcept;
396 const_reverse_iterator rbegin() const noexcept;
397 reverse_iterator rend() noexcept;
398 const_reverse_iterator rend() const noexcept;
400 const_iterator cbegin() const noexcept;
401 const_iterator cend() const noexcept;
402 const_reverse_iterator crbegin() const noexcept;
403 const_reverse_iterator crend() const noexcept;
406 bool empty() const noexcept;
407 size_type size() const noexcept;
408 size_type max_size() const noexcept;
411 template <class... Args>
412 iterator emplace(Args&&... args);
413 template <class... Args>
414 iterator emplace_hint(const_iterator position, Args&&... args);
415 iterator insert(const value_type& v);
416 iterator insert( value_type&& v); // C++17
418 iterator insert(P&& p);
419 iterator insert(const_iterator position, const value_type& v);
420 iterator insert(const_iterator position, value_type&& v); // C++17
422 iterator insert(const_iterator position, P&& p);
423 template <class InputIterator>
424 void insert(InputIterator first, InputIterator last);
425 template<container-compatible-range<value_type> R>
426 void insert_range(R&& rg); // C++23
427 void insert(initializer_list<value_type> il);
429 node_type extract(const_iterator position); // C++17
430 node_type extract(const key_type& x); // C++17
431 iterator insert(node_type&& nh); // C++17
432 iterator insert(const_iterator hint, node_type&& nh); // C++17
434 iterator erase(const_iterator position);
435 iterator erase(iterator position); // C++14
436 size_type erase(const key_type& k);
437 iterator erase(const_iterator first, const_iterator last);
438 void clear() noexcept;
441 void merge(multimap<Key, T, C2, Allocator>& source); // C++17
443 void merge(multimap<Key, T, C2, Allocator>&& source); // C++17
445 void merge(map<Key, T, C2, Allocator>& source); // C++17
447 void merge(map<Key, T, C2, Allocator>&& source); // C++17
449 void swap(multimap& m)
450 noexcept(allocator_traits<allocator_type>::is_always_equal::value &&
451 is_nothrow_swappable<key_compare>::value); // C++17
454 allocator_type get_allocator() const noexcept;
455 key_compare key_comp() const;
456 value_compare value_comp() const;
459 iterator find(const key_type& k);
460 const_iterator find(const key_type& k) const;
462 iterator find(const K& x); // C++14
464 const_iterator find(const K& x) const; // C++14
467 size_type count(const K& x) const; // C++14
468 size_type count(const key_type& k) const;
470 bool contains(const key_type& x) const; // C++20
471 template<class K> bool contains(const K& x) const; // C++20
473 iterator lower_bound(const key_type& k);
474 const_iterator lower_bound(const key_type& k) const;
476 iterator lower_bound(const K& x); // C++14
478 const_iterator lower_bound(const K& x) const; // C++14
480 iterator upper_bound(const key_type& k);
481 const_iterator upper_bound(const key_type& k) const;
483 iterator upper_bound(const K& x); // C++14
485 const_iterator upper_bound(const K& x) const; // C++14
487 pair<iterator,iterator> equal_range(const key_type& k);
488 pair<const_iterator,const_iterator> equal_range(const key_type& k) const;
490 pair<iterator,iterator> equal_range(const K& x); // C++14
492 pair<const_iterator,const_iterator> equal_range(const K& x) const; // C++14
495 template <class InputIterator,
496 class Compare = less<iter_key_t<InputIterator>>,
497 class Allocator = allocator<iter_to_alloc_t<InputIterator>>>
498 multimap(InputIterator, InputIterator, Compare = Compare(), Allocator = Allocator())
499 -> multimap<iter_key_t<InputIterator>, iter_val_t<InputIterator>, Compare, Allocator>; // C++17
501 template<ranges::input_range R, class Compare = less<range-key-type<R>>,
502 class Allocator = allocator<range-to-alloc-type<R>>>
503 multimap(from_range_t, R&&, Compare = Compare(), Allocator = Allocator())
504 -> multimap<range-key-type<R>, range-mapped-type<R>, Compare, Allocator>; // C++23
506 template<class Key, class T, class Compare = less<Key>,
507 class Allocator = allocator<pair<const Key, T>>>
508 multimap(initializer_list<pair<const Key, T>>, Compare = Compare(), Allocator = Allocator())
509 -> multimap<Key, T, Compare, Allocator>; // C++17
511 template <class InputIterator, class Allocator>
512 multimap(InputIterator, InputIterator, Allocator)
513 -> multimap<iter_key_t<InputIterator>, iter_val_t<InputIterator>,
514 less<iter_key_t<InputIterator>>, Allocator>; // C++17
516 template<ranges::input_range R, class Allocator>
517 multimap(from_range_t, R&&, Allocator)
518 -> multimap<range-key-type<R>, range-mapped-type<R>, less<range-key-type<R>>, Allocator>; // C++23
520 template<class Key, class T, class Allocator>
521 multimap(initializer_list<pair<const Key, T>>, Allocator)
522 -> multimap<Key, T, less<Key>, Allocator>; // C++17
524 template <class Key, class T, class Compare, class Allocator>
526 operator==(const multimap<Key, T, Compare, Allocator>& x,
527 const multimap<Key, T, Compare, Allocator>& y);
529 template <class Key, class T, class Compare, class Allocator>
531 operator< (const multimap<Key, T, Compare, Allocator>& x,
532 const multimap<Key, T, Compare, Allocator>& y); // removed in C++20
534 template <class Key, class T, class Compare, class Allocator>
536 operator!=(const multimap<Key, T, Compare, Allocator>& x,
537 const multimap<Key, T, Compare, Allocator>& y); // removed in C++20
539 template <class Key, class T, class Compare, class Allocator>
541 operator> (const multimap<Key, T, Compare, Allocator>& x,
542 const multimap<Key, T, Compare, Allocator>& y); // removed in C++20
544 template <class Key, class T, class Compare, class Allocator>
546 operator>=(const multimap<Key, T, Compare, Allocator>& x,
547 const multimap<Key, T, Compare, Allocator>& y); // removed in C++20
549 template <class Key, class T, class Compare, class Allocator>
551 operator<=(const multimap<Key, T, Compare, Allocator>& x,
552 const multimap<Key, T, Compare, Allocator>& y); // removed in C++20
554 template<class Key, class T, class Compare, class Allocator>
555 synth-three-way-result<pair<const Key, T>>
556 operator<=>(const multimap<Key, T, Compare, Allocator>& x,
557 const multimap<Key, T, Compare, Allocator>& y); // since c++20
559 // specialized algorithms:
560 template <class Key, class T, class Compare, class Allocator>
562 swap(multimap<Key, T, Compare, Allocator>& x,
563 multimap<Key, T, Compare, Allocator>& y)
564 noexcept(noexcept(x.swap(y)));
566 template <class Key, class T, class Compare, class Allocator, class Predicate>
567 typename multimap<Key, T, Compare, Allocator>::size_type
568 erase_if(multimap<Key, T, Compare, Allocator>& c, Predicate pred); // C++20
574 #include <__algorithm/equal.h>
575 #include <__algorithm/lexicographical_compare.h>
576 #include <__algorithm/lexicographical_compare_three_way.h>
579 #include <__functional/binary_function.h>
580 #include <__functional/is_transparent.h>
581 #include <__functional/operations.h>
582 #include <__iterator/erase_if_container.h>
583 #include <__iterator/iterator_traits.h>
584 #include <__iterator/ranges_iterator_traits.h>
585 #include <__iterator/reverse_iterator.h>
586 #include <__memory/addressof.h>
587 #include <__memory/allocator.h>
588 #include <__memory/allocator_traits.h>
589 #include <__memory/pointer_traits.h>
590 #include <__memory/unique_ptr.h>
591 #include <__memory_resource/polymorphic_allocator.h>
592 #include <__node_handle>
593 #include <__ranges/concepts.h>
594 #include <__ranges/container_compatible_range.h>
595 #include <__ranges/from_range.h>
597 #include <__type_traits/container_traits.h>
598 #include <__type_traits/is_allocator.h>
599 #include <__type_traits/remove_const.h>
600 #include <__type_traits/type_identity.h>
601 #include <__utility/forward.h>
602 #include <__utility/pair.h>
603 #include <__utility/piecewise_construct.h>
604 #include <__utility/swap.h>
605 #include <new> // for std::launder
610 // standard-mandated includes
613 #include <__iterator/access.h>
614 #include <__iterator/data.h>
615 #include <__iterator/empty.h>
616 #include <__iterator/reverse_access.h>
617 #include <__iterator/size.h>
619 // [associative.map.syn]
621 #include <initializer_list>
623 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
624 # pragma GCC system_header
628 #include <__undef_macros>
630 _LIBCPP_BEGIN_NAMESPACE_STD
632 template <class _Key,
635 bool = is_empty<_Compare>::value && !__libcpp_is_final<_Compare>::value>
636 class __map_value_compare : private _Compare {
638 _LIBCPP_HIDE_FROM_ABI __map_value_compare() _NOEXCEPT_(is_nothrow_default_constructible<_Compare>::value)
640 _LIBCPP_HIDE_FROM_ABI __map_value_compare(_Compare __c) _NOEXCEPT_(is_nothrow_copy_constructible<_Compare>::value)
642 _LIBCPP_HIDE_FROM_ABI const _Compare& key_comp() const _NOEXCEPT { return *this; }
643 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _CP& __y) const {
644 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y.__get_value().first);
646 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _Key& __y) const {
647 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y);
649 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Key& __x, const _CP& __y) const {
650 return static_cast<const _Compare&>(*this)(__x, __y.__get_value().first);
652 _LIBCPP_HIDE_FROM_ABI void swap(__map_value_compare& __y) _NOEXCEPT_(__is_nothrow_swappable_v<_Compare>) {
654 swap(static_cast<_Compare&>(*this), static_cast<_Compare&>(__y));
657 #if _LIBCPP_STD_VER >= 14
658 template <typename _K2>
659 _LIBCPP_HIDE_FROM_ABI bool operator()(const _K2& __x, const _CP& __y) const {
660 return static_cast<const _Compare&>(*this)(__x, __y.__get_value().first);
663 template <typename _K2>
664 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _K2& __y) const {
665 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y);
670 template <class _Key, class _CP, class _Compare>
671 class __map_value_compare<_Key, _CP, _Compare, false> {
675 _LIBCPP_HIDE_FROM_ABI __map_value_compare() _NOEXCEPT_(is_nothrow_default_constructible<_Compare>::value)
677 _LIBCPP_HIDE_FROM_ABI __map_value_compare(_Compare __c) _NOEXCEPT_(is_nothrow_copy_constructible<_Compare>::value)
679 _LIBCPP_HIDE_FROM_ABI const _Compare& key_comp() const _NOEXCEPT { return __comp_; }
681 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _CP& __y) const {
682 return __comp_(__x.__get_value().first, __y.__get_value().first);
684 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _Key& __y) const {
685 return __comp_(__x.__get_value().first, __y);
687 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Key& __x, const _CP& __y) const {
688 return __comp_(__x, __y.__get_value().first);
690 void swap(__map_value_compare& __y) _NOEXCEPT_(__is_nothrow_swappable_v<_Compare>) {
692 swap(__comp_, __y.__comp_);
695 #if _LIBCPP_STD_VER >= 14
696 template <typename _K2>
697 _LIBCPP_HIDE_FROM_ABI bool operator()(const _K2& __x, const _CP& __y) const {
698 return __comp_(__x, __y.__get_value().first);
701 template <typename _K2>
702 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _K2& __y) const {
703 return __comp_(__x.__get_value().first, __y);
708 template <class _Key, class _CP, class _Compare, bool __b>
709 inline _LIBCPP_HIDE_FROM_ABI void
710 swap(__map_value_compare<_Key, _CP, _Compare, __b>& __x, __map_value_compare<_Key, _CP, _Compare, __b>& __y)
711 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
715 template <class _Allocator>
716 class __map_node_destructor {
717 typedef _Allocator allocator_type;
718 typedef allocator_traits<allocator_type> __alloc_traits;
721 typedef typename __alloc_traits::pointer pointer;
724 allocator_type& __na_;
727 bool __first_constructed;
728 bool __second_constructed;
730 _LIBCPP_HIDE_FROM_ABI explicit __map_node_destructor(allocator_type& __na) _NOEXCEPT
732 __first_constructed(false),
733 __second_constructed(false) {}
735 #ifndef _LIBCPP_CXX03_LANG
736 _LIBCPP_HIDE_FROM_ABI __map_node_destructor(__tree_node_destructor<allocator_type>&& __x) _NOEXCEPT
738 __first_constructed(__x.__value_constructed),
739 __second_constructed(__x.__value_constructed) {
740 __x.__value_constructed = false;
742 #endif // _LIBCPP_CXX03_LANG
744 __map_node_destructor& operator=(const __map_node_destructor&) = delete;
746 _LIBCPP_HIDE_FROM_ABI void operator()(pointer __p) _NOEXCEPT {
747 if (__second_constructed)
748 __alloc_traits::destroy(__na_, std::addressof(__p->__value_.__get_value().second));
749 if (__first_constructed)
750 __alloc_traits::destroy(__na_, std::addressof(__p->__value_.__get_value().first));
752 __alloc_traits::deallocate(__na_, __p, 1);
756 template <class _Key, class _Tp, class _Compare, class _Allocator>
758 template <class _Key, class _Tp, class _Compare, class _Allocator>
760 template <class _TreeIterator>
761 class __map_const_iterator;
763 #ifndef _LIBCPP_CXX03_LANG
765 template <class _Key, class _Tp>
766 struct _LIBCPP_STANDALONE_DEBUG __value_type {
767 typedef _Key key_type;
768 typedef _Tp mapped_type;
769 typedef pair<const key_type, mapped_type> value_type;
770 typedef pair<key_type&, mapped_type&> __nc_ref_pair_type;
771 typedef pair<key_type&&, mapped_type&&> __nc_rref_pair_type;
777 _LIBCPP_HIDE_FROM_ABI value_type& __get_value() {
778 # if _LIBCPP_STD_VER >= 17
779 return *std::launder(std::addressof(__cc_));
785 _LIBCPP_HIDE_FROM_ABI const value_type& __get_value() const {
786 # if _LIBCPP_STD_VER >= 17
787 return *std::launder(std::addressof(__cc_));
793 _LIBCPP_HIDE_FROM_ABI __nc_ref_pair_type __ref() {
794 value_type& __v = __get_value();
795 return __nc_ref_pair_type(const_cast<key_type&>(__v.first), __v.second);
798 _LIBCPP_HIDE_FROM_ABI __nc_rref_pair_type __move() {
799 value_type& __v = __get_value();
800 return __nc_rref_pair_type(std::move(const_cast<key_type&>(__v.first)), std::move(__v.second));
803 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(const __value_type& __v) {
804 __ref() = __v.__get_value();
808 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(__value_type&& __v) {
809 __ref() = __v.__move();
813 template <class _ValueTp, __enable_if_t<__is_same_uncvref<_ValueTp, value_type>::value, int> = 0>
814 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(_ValueTp&& __v) {
815 __ref() = std::forward<_ValueTp>(__v);
819 __value_type() = delete;
820 ~__value_type() = delete;
821 __value_type(const __value_type&) = delete;
822 __value_type(__value_type&&) = delete;
827 template <class _Key, class _Tp>
828 struct __value_type {
829 typedef _Key key_type;
830 typedef _Tp mapped_type;
831 typedef pair<const key_type, mapped_type> value_type;
837 _LIBCPP_HIDE_FROM_ABI value_type& __get_value() { return __cc_; }
838 _LIBCPP_HIDE_FROM_ABI const value_type& __get_value() const { return __cc_; }
840 __value_type() = delete;
841 __value_type(__value_type const&) = delete;
842 __value_type& operator=(__value_type const&) = delete;
843 ~__value_type() = delete;
846 #endif // _LIBCPP_CXX03_LANG
849 struct __extract_key_value_types;
851 template <class _Key, class _Tp>
852 struct __extract_key_value_types<__value_type<_Key, _Tp> > {
853 typedef _Key const __key_type;
854 typedef _Tp __mapped_type;
857 template <class _TreeIterator>
858 class _LIBCPP_TEMPLATE_VIS __map_iterator {
859 typedef typename _TreeIterator::_NodeTypes _NodeTypes;
860 typedef typename _TreeIterator::__pointer_traits __pointer_traits;
865 typedef bidirectional_iterator_tag iterator_category;
866 typedef typename _NodeTypes::__map_value_type value_type;
867 typedef typename _TreeIterator::difference_type difference_type;
868 typedef value_type& reference;
869 typedef typename _NodeTypes::__map_value_type_pointer pointer;
871 _LIBCPP_HIDE_FROM_ABI __map_iterator() _NOEXCEPT {}
873 _LIBCPP_HIDE_FROM_ABI __map_iterator(_TreeIterator __i) _NOEXCEPT : __i_(__i) {}
875 _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __i_->__get_value(); }
876 _LIBCPP_HIDE_FROM_ABI pointer operator->() const { return pointer_traits<pointer>::pointer_to(__i_->__get_value()); }
878 _LIBCPP_HIDE_FROM_ABI __map_iterator& operator++() {
882 _LIBCPP_HIDE_FROM_ABI __map_iterator operator++(int) {
883 __map_iterator __t(*this);
888 _LIBCPP_HIDE_FROM_ABI __map_iterator& operator--() {
892 _LIBCPP_HIDE_FROM_ABI __map_iterator operator--(int) {
893 __map_iterator __t(*this);
898 friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __map_iterator& __x, const __map_iterator& __y) {
899 return __x.__i_ == __y.__i_;
901 friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __map_iterator& __x, const __map_iterator& __y) {
902 return __x.__i_ != __y.__i_;
905 template <class, class, class, class>
906 friend class _LIBCPP_TEMPLATE_VIS map;
907 template <class, class, class, class>
908 friend class _LIBCPP_TEMPLATE_VIS multimap;
910 friend class _LIBCPP_TEMPLATE_VIS __map_const_iterator;
913 template <class _TreeIterator>
914 class _LIBCPP_TEMPLATE_VIS __map_const_iterator {
915 typedef typename _TreeIterator::_NodeTypes _NodeTypes;
916 typedef typename _TreeIterator::__pointer_traits __pointer_traits;
921 typedef bidirectional_iterator_tag iterator_category;
922 typedef typename _NodeTypes::__map_value_type value_type;
923 typedef typename _TreeIterator::difference_type difference_type;
924 typedef const value_type& reference;
925 typedef typename _NodeTypes::__const_map_value_type_pointer pointer;
927 _LIBCPP_HIDE_FROM_ABI __map_const_iterator() _NOEXCEPT {}
929 _LIBCPP_HIDE_FROM_ABI __map_const_iterator(_TreeIterator __i) _NOEXCEPT : __i_(__i) {}
930 _LIBCPP_HIDE_FROM_ABI
931 __map_const_iterator(__map_iterator< typename _TreeIterator::__non_const_iterator> __i) _NOEXCEPT : __i_(__i.__i_) {}
933 _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __i_->__get_value(); }
934 _LIBCPP_HIDE_FROM_ABI pointer operator->() const { return pointer_traits<pointer>::pointer_to(__i_->__get_value()); }
936 _LIBCPP_HIDE_FROM_ABI __map_const_iterator& operator++() {
940 _LIBCPP_HIDE_FROM_ABI __map_const_iterator operator++(int) {
941 __map_const_iterator __t(*this);
946 _LIBCPP_HIDE_FROM_ABI __map_const_iterator& operator--() {
950 _LIBCPP_HIDE_FROM_ABI __map_const_iterator operator--(int) {
951 __map_const_iterator __t(*this);
956 friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __map_const_iterator& __x, const __map_const_iterator& __y) {
957 return __x.__i_ == __y.__i_;
959 friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __map_const_iterator& __x, const __map_const_iterator& __y) {
960 return __x.__i_ != __y.__i_;
963 template <class, class, class, class>
964 friend class _LIBCPP_TEMPLATE_VIS map;
965 template <class, class, class, class>
966 friend class _LIBCPP_TEMPLATE_VIS multimap;
967 template <class, class, class>
968 friend class _LIBCPP_TEMPLATE_VIS __tree_const_iterator;
971 template <class _Key, class _Tp, class _Compare = less<_Key>, class _Allocator = allocator<pair<const _Key, _Tp> > >
972 class _LIBCPP_TEMPLATE_VIS map {
975 typedef _Key key_type;
976 typedef _Tp mapped_type;
977 typedef pair<const key_type, mapped_type> value_type;
978 typedef __type_identity_t<_Compare> key_compare;
979 typedef __type_identity_t<_Allocator> allocator_type;
980 typedef value_type& reference;
981 typedef const value_type& const_reference;
983 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
984 "Allocator::value_type must be same type as value_type");
986 class _LIBCPP_TEMPLATE_VIS value_compare : public __binary_function<value_type, value_type, bool> {
992 _LIBCPP_HIDE_FROM_ABI value_compare(key_compare __c) : comp(__c) {}
995 _LIBCPP_HIDE_FROM_ABI bool operator()(const value_type& __x, const value_type& __y) const {
996 return comp(__x.first, __y.first);
1001 typedef std::__value_type<key_type, mapped_type> __value_type;
1002 typedef __map_value_compare<key_type, __value_type, key_compare> __vc;
1003 typedef __rebind_alloc<allocator_traits<allocator_type>, __value_type> __allocator_type;
1004 typedef __tree<__value_type, __vc, __allocator_type> __base;
1005 typedef typename __base::__node_traits __node_traits;
1006 typedef allocator_traits<allocator_type> __alloc_traits;
1008 static_assert(__check_valid_allocator<allocator_type>::value, "");
1013 typedef typename __alloc_traits::pointer pointer;
1014 typedef typename __alloc_traits::const_pointer const_pointer;
1015 typedef typename __alloc_traits::size_type size_type;
1016 typedef typename __alloc_traits::difference_type difference_type;
1017 typedef __map_iterator<typename __base::iterator> iterator;
1018 typedef __map_const_iterator<typename __base::const_iterator> const_iterator;
1019 typedef std::reverse_iterator<iterator> reverse_iterator;
1020 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
1022 #if _LIBCPP_STD_VER >= 17
1023 typedef __map_node_handle<typename __base::__node, allocator_type> node_type;
1024 typedef __insert_return_type<iterator, node_type> insert_return_type;
1027 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1028 friend class _LIBCPP_TEMPLATE_VIS map;
1029 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1030 friend class _LIBCPP_TEMPLATE_VIS multimap;
1032 _LIBCPP_HIDE_FROM_ABI map() _NOEXCEPT_(
1033 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
1034 is_nothrow_copy_constructible<key_compare>::value)
1035 : __tree_(__vc(key_compare())) {}
1037 _LIBCPP_HIDE_FROM_ABI explicit map(const key_compare& __comp) _NOEXCEPT_(
1038 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
1039 : __tree_(__vc(__comp)) {}
1041 _LIBCPP_HIDE_FROM_ABI explicit map(const key_compare& __comp, const allocator_type& __a)
1042 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {}
1044 template <class _InputIterator>
1045 _LIBCPP_HIDE_FROM_ABI map(_InputIterator __f, _InputIterator __l, const key_compare& __comp = key_compare())
1046 : __tree_(__vc(__comp)) {
1050 template <class _InputIterator>
1051 _LIBCPP_HIDE_FROM_ABI
1052 map(_InputIterator __f, _InputIterator __l, const key_compare& __comp, const allocator_type& __a)
1053 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1057 #if _LIBCPP_STD_VER >= 23
1058 template <_ContainerCompatibleRange<value_type> _Range>
1059 _LIBCPP_HIDE_FROM_ABI
1062 const key_compare& __comp = key_compare(),
1063 const allocator_type& __a = allocator_type())
1064 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1065 insert_range(std::forward<_Range>(__range));
1069 #if _LIBCPP_STD_VER >= 14
1070 template <class _InputIterator>
1071 _LIBCPP_HIDE_FROM_ABI map(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1072 : map(__f, __l, key_compare(), __a) {}
1075 #if _LIBCPP_STD_VER >= 23
1076 template <_ContainerCompatibleRange<value_type> _Range>
1077 _LIBCPP_HIDE_FROM_ABI map(from_range_t, _Range&& __range, const allocator_type& __a)
1078 : map(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
1081 _LIBCPP_HIDE_FROM_ABI map(const map& __m) : __tree_(__m.__tree_) { insert(__m.begin(), __m.end()); }
1083 _LIBCPP_HIDE_FROM_ABI map& operator=(const map& __m) {
1084 #ifndef _LIBCPP_CXX03_LANG
1085 __tree_ = __m.__tree_;
1087 if (this != std::addressof(__m)) {
1089 __tree_.value_comp() = __m.__tree_.value_comp();
1090 __tree_.__copy_assign_alloc(__m.__tree_);
1091 insert(__m.begin(), __m.end());
1097 #ifndef _LIBCPP_CXX03_LANG
1099 _LIBCPP_HIDE_FROM_ABI map(map&& __m) noexcept(is_nothrow_move_constructible<__base>::value)
1100 : __tree_(std::move(__m.__tree_)) {}
1102 _LIBCPP_HIDE_FROM_ABI map(map&& __m, const allocator_type& __a);
1104 _LIBCPP_HIDE_FROM_ABI map& operator=(map&& __m) noexcept(is_nothrow_move_assignable<__base>::value) {
1105 __tree_ = std::move(__m.__tree_);
1109 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
1110 : __tree_(__vc(__comp)) {
1111 insert(__il.begin(), __il.end());
1114 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const key_compare& __comp, const allocator_type& __a)
1115 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1116 insert(__il.begin(), __il.end());
1119 # if _LIBCPP_STD_VER >= 14
1120 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const allocator_type& __a)
1121 : map(__il, key_compare(), __a) {}
1124 _LIBCPP_HIDE_FROM_ABI map& operator=(initializer_list<value_type> __il) {
1125 __tree_.__assign_unique(__il.begin(), __il.end());
1129 #endif // _LIBCPP_CXX03_LANG
1131 _LIBCPP_HIDE_FROM_ABI explicit map(const allocator_type& __a) : __tree_(typename __base::allocator_type(__a)) {}
1133 _LIBCPP_HIDE_FROM_ABI map(const map& __m, const allocator_type& __a)
1134 : __tree_(__m.__tree_.value_comp(), typename __base::allocator_type(__a)) {
1135 insert(__m.begin(), __m.end());
1138 _LIBCPP_HIDE_FROM_ABI ~map() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
1140 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
1141 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
1142 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
1143 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
1145 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
1146 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
1147 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
1148 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
1150 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
1151 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
1152 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
1153 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
1155 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
1156 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
1157 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
1159 _LIBCPP_HIDE_FROM_ABI mapped_type& operator[](const key_type& __k);
1160 #ifndef _LIBCPP_CXX03_LANG
1161 _LIBCPP_HIDE_FROM_ABI mapped_type& operator[](key_type&& __k);
1164 _LIBCPP_HIDE_FROM_ABI mapped_type& at(const key_type& __k);
1165 _LIBCPP_HIDE_FROM_ABI const mapped_type& at(const key_type& __k) const;
1167 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return allocator_type(__tree_.__alloc()); }
1168 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp().key_comp(); }
1169 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return value_compare(__tree_.value_comp().key_comp()); }
1171 #ifndef _LIBCPP_CXX03_LANG
1172 template <class... _Args>
1173 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> emplace(_Args&&... __args) {
1174 return __tree_.__emplace_unique(std::forward<_Args>(__args)...);
1177 template <class... _Args>
1178 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
1179 return __tree_.__emplace_hint_unique(__p.__i_, std::forward<_Args>(__args)...);
1182 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1183 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(_Pp&& __p) {
1184 return __tree_.__insert_unique(std::forward<_Pp>(__p));
1187 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1188 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __pos, _Pp&& __p) {
1189 return __tree_.__insert_unique(__pos.__i_, std::forward<_Pp>(__p));
1192 #endif // _LIBCPP_CXX03_LANG
1194 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(const value_type& __v) { return __tree_.__insert_unique(__v); }
1196 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
1197 return __tree_.__insert_unique(__p.__i_, __v);
1200 #ifndef _LIBCPP_CXX03_LANG
1201 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(value_type&& __v) {
1202 return __tree_.__insert_unique(std::move(__v));
1205 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
1206 return __tree_.__insert_unique(__p.__i_, std::move(__v));
1209 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
1212 template <class _InputIterator>
1213 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
1214 for (const_iterator __e = cend(); __f != __l; ++__f)
1215 insert(__e.__i_, *__f);
1218 #if _LIBCPP_STD_VER >= 23
1219 template <_ContainerCompatibleRange<value_type> _Range>
1220 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
1221 const_iterator __end = cend();
1222 for (auto&& __element : __range) {
1223 insert(__end.__i_, std::forward<decltype(__element)>(__element));
1228 #if _LIBCPP_STD_VER >= 17
1230 template <class... _Args>
1231 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> try_emplace(const key_type& __k, _Args&&... __args) {
1232 return __tree_.__emplace_unique_key_args(
1234 std::piecewise_construct,
1235 std::forward_as_tuple(__k),
1236 std::forward_as_tuple(std::forward<_Args>(__args)...));
1239 template <class... _Args>
1240 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> try_emplace(key_type&& __k, _Args&&... __args) {
1241 return __tree_.__emplace_unique_key_args(
1243 std::piecewise_construct,
1244 std::forward_as_tuple(std::move(__k)),
1245 std::forward_as_tuple(std::forward<_Args>(__args)...));
1248 template <class... _Args>
1249 _LIBCPP_HIDE_FROM_ABI iterator try_emplace(const_iterator __h, const key_type& __k, _Args&&... __args) {
1251 .__emplace_hint_unique_key_args(
1254 std::piecewise_construct,
1255 std::forward_as_tuple(__k),
1256 std::forward_as_tuple(std::forward<_Args>(__args)...))
1260 template <class... _Args>
1261 _LIBCPP_HIDE_FROM_ABI iterator try_emplace(const_iterator __h, key_type&& __k, _Args&&... __args) {
1263 .__emplace_hint_unique_key_args(
1266 std::piecewise_construct,
1267 std::forward_as_tuple(std::move(__k)),
1268 std::forward_as_tuple(std::forward<_Args>(__args)...))
1272 template <class _Vp>
1273 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert_or_assign(const key_type& __k, _Vp&& __v) {
1274 iterator __p = lower_bound(__k);
1275 if (__p != end() && !key_comp()(__k, __p->first)) {
1276 __p->second = std::forward<_Vp>(__v);
1277 return std::make_pair(__p, false);
1279 return std::make_pair(emplace_hint(__p, __k, std::forward<_Vp>(__v)), true);
1282 template <class _Vp>
1283 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert_or_assign(key_type&& __k, _Vp&& __v) {
1284 iterator __p = lower_bound(__k);
1285 if (__p != end() && !key_comp()(__k, __p->first)) {
1286 __p->second = std::forward<_Vp>(__v);
1287 return std::make_pair(__p, false);
1289 return std::make_pair(emplace_hint(__p, std::move(__k), std::forward<_Vp>(__v)), true);
1292 template <class _Vp>
1293 _LIBCPP_HIDE_FROM_ABI iterator insert_or_assign(const_iterator __h, const key_type& __k, _Vp&& __v) {
1294 auto [__r, __inserted] = __tree_.__emplace_hint_unique_key_args(__h.__i_, __k, __k, std::forward<_Vp>(__v));
1297 __r->__get_value().second = std::forward<_Vp>(__v);
1302 template <class _Vp>
1303 _LIBCPP_HIDE_FROM_ABI iterator insert_or_assign(const_iterator __h, key_type&& __k, _Vp&& __v) {
1304 auto [__r, __inserted] =
1305 __tree_.__emplace_hint_unique_key_args(__h.__i_, __k, std::move(__k), std::forward<_Vp>(__v));
1308 __r->__get_value().second = std::forward<_Vp>(__v);
1313 #endif // _LIBCPP_STD_VER >= 17
1315 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p.__i_); }
1316 _LIBCPP_HIDE_FROM_ABI iterator erase(iterator __p) { return __tree_.erase(__p.__i_); }
1317 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_unique(__k); }
1318 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) {
1319 return __tree_.erase(__f.__i_, __l.__i_);
1321 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
1323 #if _LIBCPP_STD_VER >= 17
1324 _LIBCPP_HIDE_FROM_ABI insert_return_type insert(node_type&& __nh) {
1325 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1326 "node_type with incompatible allocator passed to map::insert()");
1327 return __tree_.template __node_handle_insert_unique< node_type, insert_return_type>(std::move(__nh));
1329 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
1330 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1331 "node_type with incompatible allocator passed to map::insert()");
1332 return __tree_.template __node_handle_insert_unique<node_type>(__hint.__i_, std::move(__nh));
1334 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
1335 return __tree_.template __node_handle_extract<node_type>(__key);
1337 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
1338 return __tree_.template __node_handle_extract<node_type>(__it.__i_);
1340 template <class _Compare2>
1341 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1342 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1343 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1344 __tree_.__node_handle_merge_unique(__source.__tree_);
1346 template <class _Compare2>
1347 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1348 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1349 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1350 __tree_.__node_handle_merge_unique(__source.__tree_);
1352 template <class _Compare2>
1353 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1354 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1355 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1356 __tree_.__node_handle_merge_unique(__source.__tree_);
1358 template <class _Compare2>
1359 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1360 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1361 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1362 __tree_.__node_handle_merge_unique(__source.__tree_);
1366 _LIBCPP_HIDE_FROM_ABI void swap(map& __m) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) { __tree_.swap(__m.__tree_); }
1368 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
1369 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
1370 #if _LIBCPP_STD_VER >= 14
1371 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1372 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
1373 return __tree_.find(__k);
1375 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1376 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
1377 return __tree_.find(__k);
1381 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_unique(__k); }
1382 #if _LIBCPP_STD_VER >= 14
1383 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1384 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
1385 return __tree_.__count_multi(__k);
1389 #if _LIBCPP_STD_VER >= 20
1390 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
1391 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1392 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
1393 return find(__k) != end();
1395 #endif // _LIBCPP_STD_VER >= 20
1397 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
1398 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
1399 #if _LIBCPP_STD_VER >= 14
1400 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1401 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
1402 return __tree_.lower_bound(__k);
1405 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1406 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
1407 return __tree_.lower_bound(__k);
1411 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
1412 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
1413 #if _LIBCPP_STD_VER >= 14
1414 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1415 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
1416 return __tree_.upper_bound(__k);
1418 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1419 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
1420 return __tree_.upper_bound(__k);
1424 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
1425 return __tree_.__equal_range_unique(__k);
1427 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
1428 return __tree_.__equal_range_unique(__k);
1430 #if _LIBCPP_STD_VER >= 14
1431 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1432 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
1433 return __tree_.__equal_range_multi(__k);
1435 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1436 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
1437 return __tree_.__equal_range_multi(__k);
1442 typedef typename __base::__node __node;
1443 typedef typename __base::__node_allocator __node_allocator;
1444 typedef typename __base::__node_pointer __node_pointer;
1445 typedef typename __base::__node_base_pointer __node_base_pointer;
1446 typedef typename __base::__parent_pointer __parent_pointer;
1448 typedef __map_node_destructor<__node_allocator> _Dp;
1449 typedef unique_ptr<__node, _Dp> __node_holder;
1451 #ifdef _LIBCPP_CXX03_LANG
1452 _LIBCPP_HIDE_FROM_ABI __node_holder __construct_node_with_key(const key_type& __k);
1456 #if _LIBCPP_STD_VER >= 17
1457 template <class _InputIterator,
1458 class _Compare = less<__iter_key_type<_InputIterator>>,
1459 class _Allocator = allocator<__iter_to_alloc_type<_InputIterator>>,
1460 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1461 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1462 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1463 map(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
1464 -> map<__iter_key_type<_InputIterator>, __iter_mapped_type<_InputIterator>, _Compare, _Allocator>;
1466 # if _LIBCPP_STD_VER >= 23
1467 template <ranges::input_range _Range,
1468 class _Compare = less<__range_key_type<_Range>>,
1469 class _Allocator = allocator<__range_to_alloc_type<_Range>>,
1470 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1471 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1472 map(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
1473 -> map<__range_key_type<_Range>, __range_mapped_type<_Range>, _Compare, _Allocator>;
1476 template <class _Key,
1478 class _Compare = less<remove_const_t<_Key>>,
1479 class _Allocator = allocator<pair<const _Key, _Tp>>,
1480 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1481 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1482 map(initializer_list<pair<_Key, _Tp>>,
1483 _Compare = _Compare(),
1484 _Allocator = _Allocator()) -> map<remove_const_t<_Key>, _Tp, _Compare, _Allocator>;
1486 template <class _InputIterator,
1488 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1489 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1490 map(_InputIterator, _InputIterator, _Allocator)
1491 -> map<__iter_key_type<_InputIterator>,
1492 __iter_mapped_type<_InputIterator>,
1493 less<__iter_key_type<_InputIterator>>,
1496 # if _LIBCPP_STD_VER >= 23
1497 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1498 map(from_range_t, _Range&&, _Allocator)
1499 -> map<__range_key_type<_Range>, __range_mapped_type<_Range>, less<__range_key_type<_Range>>, _Allocator>;
1502 template <class _Key, class _Tp, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1503 map(initializer_list<pair<_Key, _Tp>>,
1504 _Allocator) -> map<remove_const_t<_Key>, _Tp, less<remove_const_t<_Key>>, _Allocator>;
1507 #ifndef _LIBCPP_CXX03_LANG
1508 template <class _Key, class _Tp, class _Compare, class _Allocator>
1509 map<_Key, _Tp, _Compare, _Allocator>::map(map&& __m, const allocator_type& __a)
1510 : __tree_(std::move(__m.__tree_), typename __base::allocator_type(__a)) {
1511 if (__a != __m.get_allocator()) {
1512 const_iterator __e = cend();
1513 while (!__m.empty())
1514 __tree_.__insert_unique(__e.__i_, __m.__tree_.remove(__m.begin().__i_)->__value_.__move());
1518 template <class _Key, class _Tp, class _Compare, class _Allocator>
1519 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](const key_type& __k) {
1521 .__emplace_unique_key_args(__k, std::piecewise_construct, std::forward_as_tuple(__k), std::forward_as_tuple())
1522 .first->__get_value()
1526 template <class _Key, class _Tp, class _Compare, class _Allocator>
1527 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](key_type&& __k) {
1528 // TODO investigate this clang-tidy warning.
1529 // NOLINTBEGIN(bugprone-use-after-move)
1531 .__emplace_unique_key_args(
1532 __k, std::piecewise_construct, std::forward_as_tuple(std::move(__k)), std::forward_as_tuple())
1533 .first->__get_value()
1535 // NOLINTEND(bugprone-use-after-move)
1538 #else // _LIBCPP_CXX03_LANG
1540 template <class _Key, class _Tp, class _Compare, class _Allocator>
1541 typename map<_Key, _Tp, _Compare, _Allocator>::__node_holder
1542 map<_Key, _Tp, _Compare, _Allocator>::__construct_node_with_key(const key_type& __k) {
1543 __node_allocator& __na = __tree_.__node_alloc();
1544 __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na));
1545 __node_traits::construct(__na, std::addressof(__h->__value_.__get_value().first), __k);
1546 __h.get_deleter().__first_constructed = true;
1547 __node_traits::construct(__na, std::addressof(__h->__value_.__get_value().second));
1548 __h.get_deleter().__second_constructed = true;
1552 template <class _Key, class _Tp, class _Compare, class _Allocator>
1553 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](const key_type& __k) {
1554 __parent_pointer __parent;
1555 __node_base_pointer& __child = __tree_.__find_equal(__parent, __k);
1556 __node_pointer __r = static_cast<__node_pointer>(__child);
1557 if (__child == nullptr) {
1558 __node_holder __h = __construct_node_with_key(__k);
1559 __tree_.__insert_node_at(__parent, __child, static_cast<__node_base_pointer>(__h.get()));
1560 __r = __h.release();
1562 return __r->__value_.__get_value().second;
1565 #endif // _LIBCPP_CXX03_LANG
1567 template <class _Key, class _Tp, class _Compare, class _Allocator>
1568 _Tp& map<_Key, _Tp, _Compare, _Allocator>::at(const key_type& __k) {
1569 __parent_pointer __parent;
1570 __node_base_pointer& __child = __tree_.__find_equal(__parent, __k);
1571 if (__child == nullptr)
1572 __throw_out_of_range("map::at: key not found");
1573 return static_cast<__node_pointer>(__child)->__value_.__get_value().second;
1576 template <class _Key, class _Tp, class _Compare, class _Allocator>
1577 const _Tp& map<_Key, _Tp, _Compare, _Allocator>::at(const key_type& __k) const {
1578 __parent_pointer __parent;
1579 __node_base_pointer __child = __tree_.__find_equal(__parent, __k);
1580 if (__child == nullptr)
1581 __throw_out_of_range("map::at: key not found");
1582 return static_cast<__node_pointer>(__child)->__value_.__get_value().second;
1585 template <class _Key, class _Tp, class _Compare, class _Allocator>
1586 inline _LIBCPP_HIDE_FROM_ABI bool
1587 operator==(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1588 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
1591 #if _LIBCPP_STD_VER <= 17
1593 template <class _Key, class _Tp, class _Compare, class _Allocator>
1594 inline _LIBCPP_HIDE_FROM_ABI bool
1595 operator<(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1596 return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
1599 template <class _Key, class _Tp, class _Compare, class _Allocator>
1600 inline _LIBCPP_HIDE_FROM_ABI bool
1601 operator!=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1602 return !(__x == __y);
1605 template <class _Key, class _Tp, class _Compare, class _Allocator>
1606 inline _LIBCPP_HIDE_FROM_ABI bool
1607 operator>(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1611 template <class _Key, class _Tp, class _Compare, class _Allocator>
1612 inline _LIBCPP_HIDE_FROM_ABI bool
1613 operator>=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1614 return !(__x < __y);
1617 template <class _Key, class _Tp, class _Compare, class _Allocator>
1618 inline _LIBCPP_HIDE_FROM_ABI bool
1619 operator<=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1620 return !(__y < __x);
1623 #else // #if _LIBCPP_STD_VER <= 17
1625 template <class _Key, class _Tp, class _Compare, class _Allocator>
1626 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<pair<const _Key, _Tp>>
1627 operator<=>(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1628 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), std::__synth_three_way);
1631 #endif // #if _LIBCPP_STD_VER <= 17
1633 template <class _Key, class _Tp, class _Compare, class _Allocator>
1634 inline _LIBCPP_HIDE_FROM_ABI void
1635 swap(map<_Key, _Tp, _Compare, _Allocator>& __x, map<_Key, _Tp, _Compare, _Allocator>& __y)
1636 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
1640 #if _LIBCPP_STD_VER >= 20
1641 template <class _Key, class _Tp, class _Compare, class _Allocator, class _Predicate>
1642 inline _LIBCPP_HIDE_FROM_ABI typename map<_Key, _Tp, _Compare, _Allocator>::size_type
1643 erase_if(map<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred) {
1644 return std::__libcpp_erase_if_container(__c, __pred);
1648 template <class _Key, class _Tp, class _Compare, class _Allocator>
1649 struct __container_traits<map<_Key, _Tp, _Compare, _Allocator> > {
1650 // http://eel.is/c++draft/associative.reqmts.except#2
1651 // For associative containers, if an exception is thrown by any operation from within
1652 // an insert or emplace function inserting a single element, the insertion has no effect.
1653 static _LIBCPP_CONSTEXPR const bool __emplacement_has_strong_exception_safety_guarantee = true;
1656 template <class _Key, class _Tp, class _Compare = less<_Key>, class _Allocator = allocator<pair<const _Key, _Tp> > >
1657 class _LIBCPP_TEMPLATE_VIS multimap {
1660 typedef _Key key_type;
1661 typedef _Tp mapped_type;
1662 typedef pair<const key_type, mapped_type> value_type;
1663 typedef __type_identity_t<_Compare> key_compare;
1664 typedef __type_identity_t<_Allocator> allocator_type;
1665 typedef value_type& reference;
1666 typedef const value_type& const_reference;
1668 static_assert(__check_valid_allocator<allocator_type>::value, "");
1669 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
1670 "Allocator::value_type must be same type as value_type");
1672 class _LIBCPP_TEMPLATE_VIS value_compare : public __binary_function<value_type, value_type, bool> {
1673 friend class multimap;
1678 _LIBCPP_HIDE_FROM_ABI value_compare(key_compare __c) : comp(__c) {}
1681 _LIBCPP_HIDE_FROM_ABI bool operator()(const value_type& __x, const value_type& __y) const {
1682 return comp(__x.first, __y.first);
1687 typedef std::__value_type<key_type, mapped_type> __value_type;
1688 typedef __map_value_compare<key_type, __value_type, key_compare> __vc;
1689 typedef __rebind_alloc<allocator_traits<allocator_type>, __value_type> __allocator_type;
1690 typedef __tree<__value_type, __vc, __allocator_type> __base;
1691 typedef typename __base::__node_traits __node_traits;
1692 typedef allocator_traits<allocator_type> __alloc_traits;
1697 typedef typename __alloc_traits::pointer pointer;
1698 typedef typename __alloc_traits::const_pointer const_pointer;
1699 typedef typename __alloc_traits::size_type size_type;
1700 typedef typename __alloc_traits::difference_type difference_type;
1701 typedef __map_iterator<typename __base::iterator> iterator;
1702 typedef __map_const_iterator<typename __base::const_iterator> const_iterator;
1703 typedef std::reverse_iterator<iterator> reverse_iterator;
1704 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
1706 #if _LIBCPP_STD_VER >= 17
1707 typedef __map_node_handle<typename __base::__node, allocator_type> node_type;
1710 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1711 friend class _LIBCPP_TEMPLATE_VIS map;
1712 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1713 friend class _LIBCPP_TEMPLATE_VIS multimap;
1715 _LIBCPP_HIDE_FROM_ABI multimap() _NOEXCEPT_(
1716 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
1717 is_nothrow_copy_constructible<key_compare>::value)
1718 : __tree_(__vc(key_compare())) {}
1720 _LIBCPP_HIDE_FROM_ABI explicit multimap(const key_compare& __comp) _NOEXCEPT_(
1721 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
1722 : __tree_(__vc(__comp)) {}
1724 _LIBCPP_HIDE_FROM_ABI explicit multimap(const key_compare& __comp, const allocator_type& __a)
1725 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {}
1727 template <class _InputIterator>
1728 _LIBCPP_HIDE_FROM_ABI multimap(_InputIterator __f, _InputIterator __l, const key_compare& __comp = key_compare())
1729 : __tree_(__vc(__comp)) {
1733 template <class _InputIterator>
1734 _LIBCPP_HIDE_FROM_ABI
1735 multimap(_InputIterator __f, _InputIterator __l, const key_compare& __comp, const allocator_type& __a)
1736 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1740 #if _LIBCPP_STD_VER >= 23
1741 template <_ContainerCompatibleRange<value_type> _Range>
1742 _LIBCPP_HIDE_FROM_ABI
1743 multimap(from_range_t,
1745 const key_compare& __comp = key_compare(),
1746 const allocator_type& __a = allocator_type())
1747 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1748 insert_range(std::forward<_Range>(__range));
1752 #if _LIBCPP_STD_VER >= 14
1753 template <class _InputIterator>
1754 _LIBCPP_HIDE_FROM_ABI multimap(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1755 : multimap(__f, __l, key_compare(), __a) {}
1758 #if _LIBCPP_STD_VER >= 23
1759 template <_ContainerCompatibleRange<value_type> _Range>
1760 _LIBCPP_HIDE_FROM_ABI multimap(from_range_t, _Range&& __range, const allocator_type& __a)
1761 : multimap(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
1764 _LIBCPP_HIDE_FROM_ABI multimap(const multimap& __m)
1765 : __tree_(__m.__tree_.value_comp(),
1766 __alloc_traits::select_on_container_copy_construction(__m.__tree_.__alloc())) {
1767 insert(__m.begin(), __m.end());
1770 _LIBCPP_HIDE_FROM_ABI multimap& operator=(const multimap& __m) {
1771 #ifndef _LIBCPP_CXX03_LANG
1772 __tree_ = __m.__tree_;
1774 if (this != std::addressof(__m)) {
1776 __tree_.value_comp() = __m.__tree_.value_comp();
1777 __tree_.__copy_assign_alloc(__m.__tree_);
1778 insert(__m.begin(), __m.end());
1784 #ifndef _LIBCPP_CXX03_LANG
1786 _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m) noexcept(is_nothrow_move_constructible<__base>::value)
1787 : __tree_(std::move(__m.__tree_)) {}
1789 _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m, const allocator_type& __a);
1791 _LIBCPP_HIDE_FROM_ABI multimap& operator=(multimap&& __m) noexcept(is_nothrow_move_assignable<__base>::value) {
1792 __tree_ = std::move(__m.__tree_);
1796 _LIBCPP_HIDE_FROM_ABI multimap(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
1797 : __tree_(__vc(__comp)) {
1798 insert(__il.begin(), __il.end());
1801 _LIBCPP_HIDE_FROM_ABI
1802 multimap(initializer_list<value_type> __il, const key_compare& __comp, const allocator_type& __a)
1803 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1804 insert(__il.begin(), __il.end());
1807 # if _LIBCPP_STD_VER >= 14
1808 _LIBCPP_HIDE_FROM_ABI multimap(initializer_list<value_type> __il, const allocator_type& __a)
1809 : multimap(__il, key_compare(), __a) {}
1812 _LIBCPP_HIDE_FROM_ABI multimap& operator=(initializer_list<value_type> __il) {
1813 __tree_.__assign_multi(__il.begin(), __il.end());
1817 #endif // _LIBCPP_CXX03_LANG
1819 _LIBCPP_HIDE_FROM_ABI explicit multimap(const allocator_type& __a) : __tree_(typename __base::allocator_type(__a)) {}
1821 _LIBCPP_HIDE_FROM_ABI multimap(const multimap& __m, const allocator_type& __a)
1822 : __tree_(__m.__tree_.value_comp(), typename __base::allocator_type(__a)) {
1823 insert(__m.begin(), __m.end());
1826 _LIBCPP_HIDE_FROM_ABI ~multimap() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
1828 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
1829 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
1830 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
1831 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
1833 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
1834 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
1835 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
1836 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
1838 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
1839 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
1840 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
1841 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
1843 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
1844 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
1845 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
1847 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return allocator_type(__tree_.__alloc()); }
1848 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp().key_comp(); }
1849 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return value_compare(__tree_.value_comp().key_comp()); }
1851 #ifndef _LIBCPP_CXX03_LANG
1853 template <class... _Args>
1854 _LIBCPP_HIDE_FROM_ABI iterator emplace(_Args&&... __args) {
1855 return __tree_.__emplace_multi(std::forward<_Args>(__args)...);
1858 template <class... _Args>
1859 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
1860 return __tree_.__emplace_hint_multi(__p.__i_, std::forward<_Args>(__args)...);
1863 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1864 _LIBCPP_HIDE_FROM_ABI iterator insert(_Pp&& __p) {
1865 return __tree_.__insert_multi(std::forward<_Pp>(__p));
1868 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1869 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __pos, _Pp&& __p) {
1870 return __tree_.__insert_multi(__pos.__i_, std::forward<_Pp>(__p));
1873 _LIBCPP_HIDE_FROM_ABI iterator insert(value_type&& __v) { return __tree_.__insert_multi(std::move(__v)); }
1875 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
1876 return __tree_.__insert_multi(__p.__i_, std::move(__v));
1879 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
1881 #endif // _LIBCPP_CXX03_LANG
1883 _LIBCPP_HIDE_FROM_ABI iterator insert(const value_type& __v) { return __tree_.__insert_multi(__v); }
1885 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
1886 return __tree_.__insert_multi(__p.__i_, __v);
1889 template <class _InputIterator>
1890 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
1891 for (const_iterator __e = cend(); __f != __l; ++__f)
1892 __tree_.__insert_multi(__e.__i_, *__f);
1895 #if _LIBCPP_STD_VER >= 23
1896 template <_ContainerCompatibleRange<value_type> _Range>
1897 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
1898 const_iterator __end = cend();
1899 for (auto&& __element : __range) {
1900 __tree_.__insert_multi(__end.__i_, std::forward<decltype(__element)>(__element));
1905 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p.__i_); }
1906 _LIBCPP_HIDE_FROM_ABI iterator erase(iterator __p) { return __tree_.erase(__p.__i_); }
1907 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_multi(__k); }
1908 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) {
1909 return __tree_.erase(__f.__i_, __l.__i_);
1912 #if _LIBCPP_STD_VER >= 17
1913 _LIBCPP_HIDE_FROM_ABI iterator insert(node_type&& __nh) {
1914 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1915 "node_type with incompatible allocator passed to multimap::insert()");
1916 return __tree_.template __node_handle_insert_multi<node_type>(std::move(__nh));
1918 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
1919 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1920 "node_type with incompatible allocator passed to multimap::insert()");
1921 return __tree_.template __node_handle_insert_multi<node_type>(__hint.__i_, std::move(__nh));
1923 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
1924 return __tree_.template __node_handle_extract<node_type>(__key);
1926 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
1927 return __tree_.template __node_handle_extract<node_type>(__it.__i_);
1929 template <class _Compare2>
1930 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1931 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1932 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1933 return __tree_.__node_handle_merge_multi(__source.__tree_);
1935 template <class _Compare2>
1936 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1937 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1938 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1939 return __tree_.__node_handle_merge_multi(__source.__tree_);
1941 template <class _Compare2>
1942 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1943 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1944 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1945 return __tree_.__node_handle_merge_multi(__source.__tree_);
1947 template <class _Compare2>
1948 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1949 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1950 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1951 return __tree_.__node_handle_merge_multi(__source.__tree_);
1955 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
1957 _LIBCPP_HIDE_FROM_ABI void swap(multimap& __m) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) {
1958 __tree_.swap(__m.__tree_);
1961 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
1962 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
1963 #if _LIBCPP_STD_VER >= 14
1964 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1965 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
1966 return __tree_.find(__k);
1968 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1969 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
1970 return __tree_.find(__k);
1974 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_multi(__k); }
1975 #if _LIBCPP_STD_VER >= 14
1976 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1977 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
1978 return __tree_.__count_multi(__k);
1982 #if _LIBCPP_STD_VER >= 20
1983 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
1984 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1985 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
1986 return find(__k) != end();
1988 #endif // _LIBCPP_STD_VER >= 20
1990 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
1991 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
1992 #if _LIBCPP_STD_VER >= 14
1993 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1994 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
1995 return __tree_.lower_bound(__k);
1998 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1999 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
2000 return __tree_.lower_bound(__k);
2004 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
2005 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
2006 #if _LIBCPP_STD_VER >= 14
2007 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2008 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
2009 return __tree_.upper_bound(__k);
2011 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2012 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
2013 return __tree_.upper_bound(__k);
2017 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
2018 return __tree_.__equal_range_multi(__k);
2020 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
2021 return __tree_.__equal_range_multi(__k);
2023 #if _LIBCPP_STD_VER >= 14
2024 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2025 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
2026 return __tree_.__equal_range_multi(__k);
2028 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2029 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
2030 return __tree_.__equal_range_multi(__k);
2035 typedef typename __base::__node __node;
2036 typedef typename __base::__node_allocator __node_allocator;
2037 typedef typename __base::__node_pointer __node_pointer;
2039 typedef __map_node_destructor<__node_allocator> _Dp;
2040 typedef unique_ptr<__node, _Dp> __node_holder;
2043 #if _LIBCPP_STD_VER >= 17
2044 template <class _InputIterator,
2045 class _Compare = less<__iter_key_type<_InputIterator>>,
2046 class _Allocator = allocator<__iter_to_alloc_type<_InputIterator>>,
2047 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
2048 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2049 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2050 multimap(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
2051 -> multimap<__iter_key_type<_InputIterator>, __iter_mapped_type<_InputIterator>, _Compare, _Allocator>;
2053 # if _LIBCPP_STD_VER >= 23
2054 template <ranges::input_range _Range,
2055 class _Compare = less<__range_key_type<_Range>>,
2056 class _Allocator = allocator<__range_to_alloc_type<_Range>>,
2057 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2058 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2059 multimap(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
2060 -> multimap<__range_key_type<_Range>, __range_mapped_type<_Range>, _Compare, _Allocator>;
2063 template <class _Key,
2065 class _Compare = less<remove_const_t<_Key>>,
2066 class _Allocator = allocator<pair<const _Key, _Tp>>,
2067 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2068 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2069 multimap(initializer_list<pair<_Key, _Tp>>,
2070 _Compare = _Compare(),
2071 _Allocator = _Allocator()) -> multimap<remove_const_t<_Key>, _Tp, _Compare, _Allocator>;
2073 template <class _InputIterator,
2075 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
2076 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2077 multimap(_InputIterator, _InputIterator, _Allocator)
2078 -> multimap<__iter_key_type<_InputIterator>,
2079 __iter_mapped_type<_InputIterator>,
2080 less<__iter_key_type<_InputIterator>>,
2083 # if _LIBCPP_STD_VER >= 23
2084 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2085 multimap(from_range_t, _Range&&, _Allocator)
2086 -> multimap<__range_key_type<_Range>, __range_mapped_type<_Range>, less<__range_key_type<_Range>>, _Allocator>;
2089 template <class _Key, class _Tp, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2090 multimap(initializer_list<pair<_Key, _Tp>>,
2091 _Allocator) -> multimap<remove_const_t<_Key>, _Tp, less<remove_const_t<_Key>>, _Allocator>;
2094 #ifndef _LIBCPP_CXX03_LANG
2095 template <class _Key, class _Tp, class _Compare, class _Allocator>
2096 multimap<_Key, _Tp, _Compare, _Allocator>::multimap(multimap&& __m, const allocator_type& __a)
2097 : __tree_(std::move(__m.__tree_), typename __base::allocator_type(__a)) {
2098 if (__a != __m.get_allocator()) {
2099 const_iterator __e = cend();
2100 while (!__m.empty())
2101 __tree_.__insert_multi(__e.__i_, std::move(__m.__tree_.remove(__m.begin().__i_)->__value_.__move()));
2106 template <class _Key, class _Tp, class _Compare, class _Allocator>
2107 inline _LIBCPP_HIDE_FROM_ABI bool
2108 operator==(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2109 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
2112 #if _LIBCPP_STD_VER <= 17
2114 template <class _Key, class _Tp, class _Compare, class _Allocator>
2115 inline _LIBCPP_HIDE_FROM_ABI bool
2116 operator<(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2117 return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
2120 template <class _Key, class _Tp, class _Compare, class _Allocator>
2121 inline _LIBCPP_HIDE_FROM_ABI bool
2122 operator!=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2123 return !(__x == __y);
2126 template <class _Key, class _Tp, class _Compare, class _Allocator>
2127 inline _LIBCPP_HIDE_FROM_ABI bool
2128 operator>(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2132 template <class _Key, class _Tp, class _Compare, class _Allocator>
2133 inline _LIBCPP_HIDE_FROM_ABI bool
2134 operator>=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2135 return !(__x < __y);
2138 template <class _Key, class _Tp, class _Compare, class _Allocator>
2139 inline _LIBCPP_HIDE_FROM_ABI bool
2140 operator<=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2141 return !(__y < __x);
2144 #else // #if _LIBCPP_STD_VER <= 17
2146 template <class _Key, class _Tp, class _Compare, class _Allocator>
2147 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<pair<const _Key, _Tp>>
2148 operator<=>(const multimap<_Key, _Tp, _Compare, _Allocator>& __x,
2149 const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2150 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), __synth_three_way);
2153 #endif // #if _LIBCPP_STD_VER <= 17
2155 template <class _Key, class _Tp, class _Compare, class _Allocator>
2156 inline _LIBCPP_HIDE_FROM_ABI void
2157 swap(multimap<_Key, _Tp, _Compare, _Allocator>& __x, multimap<_Key, _Tp, _Compare, _Allocator>& __y)
2158 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
2162 #if _LIBCPP_STD_VER >= 20
2163 template <class _Key, class _Tp, class _Compare, class _Allocator, class _Predicate>
2164 inline _LIBCPP_HIDE_FROM_ABI typename multimap<_Key, _Tp, _Compare, _Allocator>::size_type
2165 erase_if(multimap<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred) {
2166 return std::__libcpp_erase_if_container(__c, __pred);
2170 template <class _Key, class _Tp, class _Compare, class _Allocator>
2171 struct __container_traits<multimap<_Key, _Tp, _Compare, _Allocator> > {
2172 // http://eel.is/c++draft/associative.reqmts.except#2
2173 // For associative containers, if an exception is thrown by any operation from within
2174 // an insert or emplace function inserting a single element, the insertion has no effect.
2175 static _LIBCPP_CONSTEXPR const bool __emplacement_has_strong_exception_safety_guarantee = true;
2178 _LIBCPP_END_NAMESPACE_STD
2180 #if _LIBCPP_STD_VER >= 17
2181 _LIBCPP_BEGIN_NAMESPACE_STD
2183 template <class _KeyT, class _ValueT, class _CompareT = std::less<_KeyT>>
2184 using map _LIBCPP_AVAILABILITY_PMR =
2185 std::map<_KeyT, _ValueT, _CompareT, polymorphic_allocator<std::pair<const _KeyT, _ValueT>>>;
2187 template <class _KeyT, class _ValueT, class _CompareT = std::less<_KeyT>>
2188 using multimap _LIBCPP_AVAILABILITY_PMR =
2189 std::multimap<_KeyT, _ValueT, _CompareT, polymorphic_allocator<std::pair<const _KeyT, _ValueT>>>;
2191 _LIBCPP_END_NAMESPACE_STD
2196 #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
2197 # include <concepts>
2199 # include <functional>
2200 # include <iterator>
2201 # include <type_traits>
2205 #endif // _LIBCPP_MAP