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 #if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
575 # include <__cxx03/map>
577 # include <__algorithm/equal.h>
578 # include <__algorithm/lexicographical_compare.h>
579 # include <__algorithm/lexicographical_compare_three_way.h>
582 # include <__functional/binary_function.h>
583 # include <__functional/is_transparent.h>
584 # include <__functional/operations.h>
585 # include <__iterator/erase_if_container.h>
586 # include <__iterator/iterator_traits.h>
587 # include <__iterator/ranges_iterator_traits.h>
588 # include <__iterator/reverse_iterator.h>
589 # include <__memory/addressof.h>
590 # include <__memory/allocator.h>
591 # include <__memory/allocator_traits.h>
592 # include <__memory/pointer_traits.h>
593 # include <__memory/unique_ptr.h>
594 # include <__memory_resource/polymorphic_allocator.h>
595 # include <__new/launder.h>
596 # include <__node_handle>
597 # include <__ranges/concepts.h>
598 # include <__ranges/container_compatible_range.h>
599 # include <__ranges/from_range.h>
601 # include <__type_traits/container_traits.h>
602 # include <__type_traits/is_allocator.h>
603 # include <__type_traits/remove_const.h>
604 # include <__type_traits/type_identity.h>
605 # include <__utility/forward.h>
606 # include <__utility/pair.h>
607 # include <__utility/piecewise_construct.h>
608 # include <__utility/swap.h>
609 # include <stdexcept>
613 // standard-mandated includes
616 # include <__iterator/access.h>
617 # include <__iterator/data.h>
618 # include <__iterator/empty.h>
619 # include <__iterator/reverse_access.h>
620 # include <__iterator/size.h>
622 // [associative.map.syn]
624 # include <initializer_list>
626 # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
627 # pragma GCC system_header
631 # include <__undef_macros>
633 _LIBCPP_BEGIN_NAMESPACE_STD
635 template <class _Key,
638 bool = is_empty<_Compare>::value && !__libcpp_is_final<_Compare>::value>
639 class __map_value_compare : private _Compare {
641 _LIBCPP_HIDE_FROM_ABI __map_value_compare() _NOEXCEPT_(is_nothrow_default_constructible<_Compare>::value)
643 _LIBCPP_HIDE_FROM_ABI __map_value_compare(_Compare __c) _NOEXCEPT_(is_nothrow_copy_constructible<_Compare>::value)
645 _LIBCPP_HIDE_FROM_ABI const _Compare& key_comp() const _NOEXCEPT { return *this; }
646 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _CP& __y) const {
647 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y.__get_value().first);
649 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _Key& __y) const {
650 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y);
652 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Key& __x, const _CP& __y) const {
653 return static_cast<const _Compare&>(*this)(__x, __y.__get_value().first);
655 _LIBCPP_HIDE_FROM_ABI void swap(__map_value_compare& __y) _NOEXCEPT_(__is_nothrow_swappable_v<_Compare>) {
657 swap(static_cast<_Compare&>(*this), static_cast<_Compare&>(__y));
660 # if _LIBCPP_STD_VER >= 14
661 template <typename _K2>
662 _LIBCPP_HIDE_FROM_ABI bool operator()(const _K2& __x, const _CP& __y) const {
663 return static_cast<const _Compare&>(*this)(__x, __y.__get_value().first);
666 template <typename _K2>
667 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _K2& __y) const {
668 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y);
673 template <class _Key, class _CP, class _Compare>
674 class __map_value_compare<_Key, _CP, _Compare, false> {
678 _LIBCPP_HIDE_FROM_ABI __map_value_compare() _NOEXCEPT_(is_nothrow_default_constructible<_Compare>::value)
680 _LIBCPP_HIDE_FROM_ABI __map_value_compare(_Compare __c) _NOEXCEPT_(is_nothrow_copy_constructible<_Compare>::value)
682 _LIBCPP_HIDE_FROM_ABI const _Compare& key_comp() const _NOEXCEPT { return __comp_; }
684 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _CP& __y) const {
685 return __comp_(__x.__get_value().first, __y.__get_value().first);
687 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _Key& __y) const {
688 return __comp_(__x.__get_value().first, __y);
690 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Key& __x, const _CP& __y) const {
691 return __comp_(__x, __y.__get_value().first);
693 void swap(__map_value_compare& __y) _NOEXCEPT_(__is_nothrow_swappable_v<_Compare>) {
695 swap(__comp_, __y.__comp_);
698 # if _LIBCPP_STD_VER >= 14
699 template <typename _K2>
700 _LIBCPP_HIDE_FROM_ABI bool operator()(const _K2& __x, const _CP& __y) const {
701 return __comp_(__x, __y.__get_value().first);
704 template <typename _K2>
705 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _K2& __y) const {
706 return __comp_(__x.__get_value().first, __y);
711 template <class _Key, class _CP, class _Compare, bool __b>
712 inline _LIBCPP_HIDE_FROM_ABI void
713 swap(__map_value_compare<_Key, _CP, _Compare, __b>& __x, __map_value_compare<_Key, _CP, _Compare, __b>& __y)
714 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
718 template <class _Allocator>
719 class __map_node_destructor {
720 typedef _Allocator allocator_type;
721 typedef allocator_traits<allocator_type> __alloc_traits;
724 typedef typename __alloc_traits::pointer pointer;
727 allocator_type& __na_;
730 bool __first_constructed;
731 bool __second_constructed;
733 _LIBCPP_HIDE_FROM_ABI explicit __map_node_destructor(allocator_type& __na) _NOEXCEPT
735 __first_constructed(false),
736 __second_constructed(false) {}
738 # ifndef _LIBCPP_CXX03_LANG
739 _LIBCPP_HIDE_FROM_ABI __map_node_destructor(__tree_node_destructor<allocator_type>&& __x) _NOEXCEPT
741 __first_constructed(__x.__value_constructed),
742 __second_constructed(__x.__value_constructed) {
743 __x.__value_constructed = false;
745 # endif // _LIBCPP_CXX03_LANG
747 __map_node_destructor& operator=(const __map_node_destructor&) = delete;
749 _LIBCPP_HIDE_FROM_ABI void operator()(pointer __p) _NOEXCEPT {
750 if (__second_constructed)
751 __alloc_traits::destroy(__na_, std::addressof(__p->__value_.__get_value().second));
752 if (__first_constructed)
753 __alloc_traits::destroy(__na_, std::addressof(__p->__value_.__get_value().first));
755 __alloc_traits::deallocate(__na_, __p, 1);
759 template <class _Key, class _Tp, class _Compare, class _Allocator>
761 template <class _Key, class _Tp, class _Compare, class _Allocator>
763 template <class _TreeIterator>
764 class __map_const_iterator;
766 # ifndef _LIBCPP_CXX03_LANG
768 template <class _Key, class _Tp>
769 struct _LIBCPP_STANDALONE_DEBUG __value_type {
770 typedef _Key key_type;
771 typedef _Tp mapped_type;
772 typedef pair<const key_type, mapped_type> value_type;
773 typedef pair<key_type&, mapped_type&> __nc_ref_pair_type;
774 typedef pair<key_type&&, mapped_type&&> __nc_rref_pair_type;
780 _LIBCPP_HIDE_FROM_ABI value_type& __get_value() {
781 # if _LIBCPP_STD_VER >= 17
782 return *std::launder(std::addressof(__cc_));
788 _LIBCPP_HIDE_FROM_ABI const value_type& __get_value() const {
789 # if _LIBCPP_STD_VER >= 17
790 return *std::launder(std::addressof(__cc_));
796 _LIBCPP_HIDE_FROM_ABI __nc_ref_pair_type __ref() {
797 value_type& __v = __get_value();
798 return __nc_ref_pair_type(const_cast<key_type&>(__v.first), __v.second);
801 _LIBCPP_HIDE_FROM_ABI __nc_rref_pair_type __move() {
802 value_type& __v = __get_value();
803 return __nc_rref_pair_type(std::move(const_cast<key_type&>(__v.first)), std::move(__v.second));
806 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(const __value_type& __v) {
807 __ref() = __v.__get_value();
811 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(__value_type&& __v) {
812 __ref() = __v.__move();
816 template <class _ValueTp, __enable_if_t<__is_same_uncvref<_ValueTp, value_type>::value, int> = 0>
817 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(_ValueTp&& __v) {
818 __ref() = std::forward<_ValueTp>(__v);
822 __value_type() = delete;
823 ~__value_type() = delete;
824 __value_type(const __value_type&) = delete;
825 __value_type(__value_type&&) = delete;
830 template <class _Key, class _Tp>
831 struct __value_type {
832 typedef _Key key_type;
833 typedef _Tp mapped_type;
834 typedef pair<const key_type, mapped_type> value_type;
840 _LIBCPP_HIDE_FROM_ABI value_type& __get_value() { return __cc_; }
841 _LIBCPP_HIDE_FROM_ABI const value_type& __get_value() const { return __cc_; }
843 __value_type() = delete;
844 __value_type(__value_type const&) = delete;
845 __value_type& operator=(__value_type const&) = delete;
846 ~__value_type() = delete;
849 # endif // _LIBCPP_CXX03_LANG
852 struct __extract_key_value_types;
854 template <class _Key, class _Tp>
855 struct __extract_key_value_types<__value_type<_Key, _Tp> > {
856 typedef _Key const __key_type;
857 typedef _Tp __mapped_type;
860 template <class _TreeIterator>
861 class _LIBCPP_TEMPLATE_VIS __map_iterator {
862 typedef typename _TreeIterator::_NodeTypes _NodeTypes;
863 typedef typename _TreeIterator::__pointer_traits __pointer_traits;
868 typedef bidirectional_iterator_tag iterator_category;
869 typedef typename _NodeTypes::__map_value_type value_type;
870 typedef typename _TreeIterator::difference_type difference_type;
871 typedef value_type& reference;
872 typedef typename _NodeTypes::__map_value_type_pointer pointer;
874 _LIBCPP_HIDE_FROM_ABI __map_iterator() _NOEXCEPT {}
876 _LIBCPP_HIDE_FROM_ABI __map_iterator(_TreeIterator __i) _NOEXCEPT : __i_(__i) {}
878 _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __i_->__get_value(); }
879 _LIBCPP_HIDE_FROM_ABI pointer operator->() const { return pointer_traits<pointer>::pointer_to(__i_->__get_value()); }
881 _LIBCPP_HIDE_FROM_ABI __map_iterator& operator++() {
885 _LIBCPP_HIDE_FROM_ABI __map_iterator operator++(int) {
886 __map_iterator __t(*this);
891 _LIBCPP_HIDE_FROM_ABI __map_iterator& operator--() {
895 _LIBCPP_HIDE_FROM_ABI __map_iterator operator--(int) {
896 __map_iterator __t(*this);
901 friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __map_iterator& __x, const __map_iterator& __y) {
902 return __x.__i_ == __y.__i_;
904 friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __map_iterator& __x, const __map_iterator& __y) {
905 return __x.__i_ != __y.__i_;
908 template <class, class, class, class>
909 friend class _LIBCPP_TEMPLATE_VIS map;
910 template <class, class, class, class>
911 friend class _LIBCPP_TEMPLATE_VIS multimap;
913 friend class _LIBCPP_TEMPLATE_VIS __map_const_iterator;
916 template <class _TreeIterator>
917 class _LIBCPP_TEMPLATE_VIS __map_const_iterator {
918 typedef typename _TreeIterator::_NodeTypes _NodeTypes;
919 typedef typename _TreeIterator::__pointer_traits __pointer_traits;
924 typedef bidirectional_iterator_tag iterator_category;
925 typedef typename _NodeTypes::__map_value_type value_type;
926 typedef typename _TreeIterator::difference_type difference_type;
927 typedef const value_type& reference;
928 typedef typename _NodeTypes::__const_map_value_type_pointer pointer;
930 _LIBCPP_HIDE_FROM_ABI __map_const_iterator() _NOEXCEPT {}
932 _LIBCPP_HIDE_FROM_ABI __map_const_iterator(_TreeIterator __i) _NOEXCEPT : __i_(__i) {}
933 _LIBCPP_HIDE_FROM_ABI
934 __map_const_iterator(__map_iterator< typename _TreeIterator::__non_const_iterator> __i) _NOEXCEPT : __i_(__i.__i_) {}
936 _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __i_->__get_value(); }
937 _LIBCPP_HIDE_FROM_ABI pointer operator->() const { return pointer_traits<pointer>::pointer_to(__i_->__get_value()); }
939 _LIBCPP_HIDE_FROM_ABI __map_const_iterator& operator++() {
943 _LIBCPP_HIDE_FROM_ABI __map_const_iterator operator++(int) {
944 __map_const_iterator __t(*this);
949 _LIBCPP_HIDE_FROM_ABI __map_const_iterator& operator--() {
953 _LIBCPP_HIDE_FROM_ABI __map_const_iterator operator--(int) {
954 __map_const_iterator __t(*this);
959 friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __map_const_iterator& __x, const __map_const_iterator& __y) {
960 return __x.__i_ == __y.__i_;
962 friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __map_const_iterator& __x, const __map_const_iterator& __y) {
963 return __x.__i_ != __y.__i_;
966 template <class, class, class, class>
967 friend class _LIBCPP_TEMPLATE_VIS map;
968 template <class, class, class, class>
969 friend class _LIBCPP_TEMPLATE_VIS multimap;
970 template <class, class, class>
971 friend class _LIBCPP_TEMPLATE_VIS __tree_const_iterator;
974 template <class _Key, class _Tp, class _Compare = less<_Key>, class _Allocator = allocator<pair<const _Key, _Tp> > >
975 class _LIBCPP_TEMPLATE_VIS map {
978 typedef _Key key_type;
979 typedef _Tp mapped_type;
980 typedef pair<const key_type, mapped_type> value_type;
981 typedef __type_identity_t<_Compare> key_compare;
982 typedef __type_identity_t<_Allocator> allocator_type;
983 typedef value_type& reference;
984 typedef const value_type& const_reference;
986 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
987 "Allocator::value_type must be same type as value_type");
989 class _LIBCPP_TEMPLATE_VIS value_compare : public __binary_function<value_type, value_type, bool> {
995 _LIBCPP_HIDE_FROM_ABI value_compare(key_compare __c) : comp(__c) {}
998 _LIBCPP_HIDE_FROM_ABI bool operator()(const value_type& __x, const value_type& __y) const {
999 return comp(__x.first, __y.first);
1004 typedef std::__value_type<key_type, mapped_type> __value_type;
1005 typedef __map_value_compare<key_type, __value_type, key_compare> __vc;
1006 typedef __rebind_alloc<allocator_traits<allocator_type>, __value_type> __allocator_type;
1007 typedef __tree<__value_type, __vc, __allocator_type> __base;
1008 typedef typename __base::__node_traits __node_traits;
1009 typedef allocator_traits<allocator_type> __alloc_traits;
1011 static_assert(__check_valid_allocator<allocator_type>::value, "");
1016 typedef typename __alloc_traits::pointer pointer;
1017 typedef typename __alloc_traits::const_pointer const_pointer;
1018 typedef typename __alloc_traits::size_type size_type;
1019 typedef typename __alloc_traits::difference_type difference_type;
1020 typedef __map_iterator<typename __base::iterator> iterator;
1021 typedef __map_const_iterator<typename __base::const_iterator> const_iterator;
1022 typedef std::reverse_iterator<iterator> reverse_iterator;
1023 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
1025 # if _LIBCPP_STD_VER >= 17
1026 typedef __map_node_handle<typename __base::__node, allocator_type> node_type;
1027 typedef __insert_return_type<iterator, node_type> insert_return_type;
1030 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1031 friend class _LIBCPP_TEMPLATE_VIS map;
1032 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1033 friend class _LIBCPP_TEMPLATE_VIS multimap;
1035 _LIBCPP_HIDE_FROM_ABI map() _NOEXCEPT_(
1036 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
1037 is_nothrow_copy_constructible<key_compare>::value)
1038 : __tree_(__vc(key_compare())) {}
1040 _LIBCPP_HIDE_FROM_ABI explicit map(const key_compare& __comp) _NOEXCEPT_(
1041 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
1042 : __tree_(__vc(__comp)) {}
1044 _LIBCPP_HIDE_FROM_ABI explicit map(const key_compare& __comp, const allocator_type& __a)
1045 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {}
1047 template <class _InputIterator>
1048 _LIBCPP_HIDE_FROM_ABI map(_InputIterator __f, _InputIterator __l, const key_compare& __comp = key_compare())
1049 : __tree_(__vc(__comp)) {
1053 template <class _InputIterator>
1054 _LIBCPP_HIDE_FROM_ABI
1055 map(_InputIterator __f, _InputIterator __l, const key_compare& __comp, const allocator_type& __a)
1056 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1060 # if _LIBCPP_STD_VER >= 23
1061 template <_ContainerCompatibleRange<value_type> _Range>
1062 _LIBCPP_HIDE_FROM_ABI
1065 const key_compare& __comp = key_compare(),
1066 const allocator_type& __a = allocator_type())
1067 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1068 insert_range(std::forward<_Range>(__range));
1072 # if _LIBCPP_STD_VER >= 14
1073 template <class _InputIterator>
1074 _LIBCPP_HIDE_FROM_ABI map(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1075 : map(__f, __l, key_compare(), __a) {}
1078 # if _LIBCPP_STD_VER >= 23
1079 template <_ContainerCompatibleRange<value_type> _Range>
1080 _LIBCPP_HIDE_FROM_ABI map(from_range_t, _Range&& __range, const allocator_type& __a)
1081 : map(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
1084 _LIBCPP_HIDE_FROM_ABI map(const map& __m) : __tree_(__m.__tree_) { insert(__m.begin(), __m.end()); }
1086 _LIBCPP_HIDE_FROM_ABI map& operator=(const map& __m) {
1087 # ifndef _LIBCPP_CXX03_LANG
1088 __tree_ = __m.__tree_;
1090 if (this != std::addressof(__m)) {
1092 __tree_.value_comp() = __m.__tree_.value_comp();
1093 __tree_.__copy_assign_alloc(__m.__tree_);
1094 insert(__m.begin(), __m.end());
1100 # ifndef _LIBCPP_CXX03_LANG
1102 _LIBCPP_HIDE_FROM_ABI map(map&& __m) noexcept(is_nothrow_move_constructible<__base>::value)
1103 : __tree_(std::move(__m.__tree_)) {}
1105 _LIBCPP_HIDE_FROM_ABI map(map&& __m, const allocator_type& __a);
1107 _LIBCPP_HIDE_FROM_ABI map& operator=(map&& __m) noexcept(is_nothrow_move_assignable<__base>::value) {
1108 __tree_ = std::move(__m.__tree_);
1112 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
1113 : __tree_(__vc(__comp)) {
1114 insert(__il.begin(), __il.end());
1117 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const key_compare& __comp, const allocator_type& __a)
1118 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1119 insert(__il.begin(), __il.end());
1122 # if _LIBCPP_STD_VER >= 14
1123 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const allocator_type& __a)
1124 : map(__il, key_compare(), __a) {}
1127 _LIBCPP_HIDE_FROM_ABI map& operator=(initializer_list<value_type> __il) {
1128 __tree_.__assign_unique(__il.begin(), __il.end());
1132 # endif // _LIBCPP_CXX03_LANG
1134 _LIBCPP_HIDE_FROM_ABI explicit map(const allocator_type& __a) : __tree_(typename __base::allocator_type(__a)) {}
1136 _LIBCPP_HIDE_FROM_ABI map(const map& __m, const allocator_type& __a)
1137 : __tree_(__m.__tree_.value_comp(), typename __base::allocator_type(__a)) {
1138 insert(__m.begin(), __m.end());
1141 _LIBCPP_HIDE_FROM_ABI ~map() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
1143 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
1144 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
1145 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
1146 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
1148 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
1149 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
1150 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
1151 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
1153 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
1154 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
1155 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
1156 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
1158 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
1159 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
1160 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
1162 _LIBCPP_HIDE_FROM_ABI mapped_type& operator[](const key_type& __k);
1163 # ifndef _LIBCPP_CXX03_LANG
1164 _LIBCPP_HIDE_FROM_ABI mapped_type& operator[](key_type&& __k);
1167 _LIBCPP_HIDE_FROM_ABI mapped_type& at(const key_type& __k);
1168 _LIBCPP_HIDE_FROM_ABI const mapped_type& at(const key_type& __k) const;
1170 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return allocator_type(__tree_.__alloc()); }
1171 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp().key_comp(); }
1172 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return value_compare(__tree_.value_comp().key_comp()); }
1174 # ifndef _LIBCPP_CXX03_LANG
1175 template <class... _Args>
1176 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> emplace(_Args&&... __args) {
1177 return __tree_.__emplace_unique(std::forward<_Args>(__args)...);
1180 template <class... _Args>
1181 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
1182 return __tree_.__emplace_hint_unique(__p.__i_, std::forward<_Args>(__args)...);
1185 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1186 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(_Pp&& __p) {
1187 return __tree_.__insert_unique(std::forward<_Pp>(__p));
1190 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1191 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __pos, _Pp&& __p) {
1192 return __tree_.__insert_unique(__pos.__i_, std::forward<_Pp>(__p));
1195 # endif // _LIBCPP_CXX03_LANG
1197 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(const value_type& __v) { return __tree_.__insert_unique(__v); }
1199 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
1200 return __tree_.__insert_unique(__p.__i_, __v);
1203 # ifndef _LIBCPP_CXX03_LANG
1204 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(value_type&& __v) {
1205 return __tree_.__insert_unique(std::move(__v));
1208 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
1209 return __tree_.__insert_unique(__p.__i_, std::move(__v));
1212 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
1215 template <class _InputIterator>
1216 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
1217 for (const_iterator __e = cend(); __f != __l; ++__f)
1218 insert(__e.__i_, *__f);
1221 # if _LIBCPP_STD_VER >= 23
1222 template <_ContainerCompatibleRange<value_type> _Range>
1223 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
1224 const_iterator __end = cend();
1225 for (auto&& __element : __range) {
1226 insert(__end.__i_, std::forward<decltype(__element)>(__element));
1231 # if _LIBCPP_STD_VER >= 17
1233 template <class... _Args>
1234 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> try_emplace(const key_type& __k, _Args&&... __args) {
1235 return __tree_.__emplace_unique_key_args(
1237 std::piecewise_construct,
1238 std::forward_as_tuple(__k),
1239 std::forward_as_tuple(std::forward<_Args>(__args)...));
1242 template <class... _Args>
1243 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> try_emplace(key_type&& __k, _Args&&... __args) {
1244 return __tree_.__emplace_unique_key_args(
1246 std::piecewise_construct,
1247 std::forward_as_tuple(std::move(__k)),
1248 std::forward_as_tuple(std::forward<_Args>(__args)...));
1251 template <class... _Args>
1252 _LIBCPP_HIDE_FROM_ABI iterator try_emplace(const_iterator __h, const key_type& __k, _Args&&... __args) {
1254 .__emplace_hint_unique_key_args(
1257 std::piecewise_construct,
1258 std::forward_as_tuple(__k),
1259 std::forward_as_tuple(std::forward<_Args>(__args)...))
1263 template <class... _Args>
1264 _LIBCPP_HIDE_FROM_ABI iterator try_emplace(const_iterator __h, key_type&& __k, _Args&&... __args) {
1266 .__emplace_hint_unique_key_args(
1269 std::piecewise_construct,
1270 std::forward_as_tuple(std::move(__k)),
1271 std::forward_as_tuple(std::forward<_Args>(__args)...))
1275 template <class _Vp>
1276 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert_or_assign(const key_type& __k, _Vp&& __v) {
1277 iterator __p = lower_bound(__k);
1278 if (__p != end() && !key_comp()(__k, __p->first)) {
1279 __p->second = std::forward<_Vp>(__v);
1280 return std::make_pair(__p, false);
1282 return std::make_pair(emplace_hint(__p, __k, std::forward<_Vp>(__v)), true);
1285 template <class _Vp>
1286 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert_or_assign(key_type&& __k, _Vp&& __v) {
1287 iterator __p = lower_bound(__k);
1288 if (__p != end() && !key_comp()(__k, __p->first)) {
1289 __p->second = std::forward<_Vp>(__v);
1290 return std::make_pair(__p, false);
1292 return std::make_pair(emplace_hint(__p, std::move(__k), std::forward<_Vp>(__v)), true);
1295 template <class _Vp>
1296 _LIBCPP_HIDE_FROM_ABI iterator insert_or_assign(const_iterator __h, const key_type& __k, _Vp&& __v) {
1297 auto [__r, __inserted] = __tree_.__emplace_hint_unique_key_args(__h.__i_, __k, __k, std::forward<_Vp>(__v));
1300 __r->__get_value().second = std::forward<_Vp>(__v);
1305 template <class _Vp>
1306 _LIBCPP_HIDE_FROM_ABI iterator insert_or_assign(const_iterator __h, key_type&& __k, _Vp&& __v) {
1307 auto [__r, __inserted] =
1308 __tree_.__emplace_hint_unique_key_args(__h.__i_, __k, std::move(__k), std::forward<_Vp>(__v));
1311 __r->__get_value().second = std::forward<_Vp>(__v);
1316 # endif // _LIBCPP_STD_VER >= 17
1318 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p.__i_); }
1319 _LIBCPP_HIDE_FROM_ABI iterator erase(iterator __p) { return __tree_.erase(__p.__i_); }
1320 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_unique(__k); }
1321 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) {
1322 return __tree_.erase(__f.__i_, __l.__i_);
1324 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
1326 # if _LIBCPP_STD_VER >= 17
1327 _LIBCPP_HIDE_FROM_ABI insert_return_type insert(node_type&& __nh) {
1328 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1329 "node_type with incompatible allocator passed to map::insert()");
1330 return __tree_.template __node_handle_insert_unique< node_type, insert_return_type>(std::move(__nh));
1332 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
1333 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1334 "node_type with incompatible allocator passed to map::insert()");
1335 return __tree_.template __node_handle_insert_unique<node_type>(__hint.__i_, std::move(__nh));
1337 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
1338 return __tree_.template __node_handle_extract<node_type>(__key);
1340 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
1341 return __tree_.template __node_handle_extract<node_type>(__it.__i_);
1343 template <class _Compare2>
1344 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1345 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1346 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1347 __tree_.__node_handle_merge_unique(__source.__tree_);
1349 template <class _Compare2>
1350 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1351 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1352 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1353 __tree_.__node_handle_merge_unique(__source.__tree_);
1355 template <class _Compare2>
1356 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1357 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1358 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1359 __tree_.__node_handle_merge_unique(__source.__tree_);
1361 template <class _Compare2>
1362 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1363 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1364 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1365 __tree_.__node_handle_merge_unique(__source.__tree_);
1369 _LIBCPP_HIDE_FROM_ABI void swap(map& __m) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) { __tree_.swap(__m.__tree_); }
1371 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
1372 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
1373 # if _LIBCPP_STD_VER >= 14
1374 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1375 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
1376 return __tree_.find(__k);
1378 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1379 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
1380 return __tree_.find(__k);
1384 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_unique(__k); }
1385 # if _LIBCPP_STD_VER >= 14
1386 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1387 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
1388 return __tree_.__count_multi(__k);
1392 # if _LIBCPP_STD_VER >= 20
1393 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
1394 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1395 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
1396 return find(__k) != end();
1398 # endif // _LIBCPP_STD_VER >= 20
1400 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
1401 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
1402 # if _LIBCPP_STD_VER >= 14
1403 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1404 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
1405 return __tree_.lower_bound(__k);
1408 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1409 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
1410 return __tree_.lower_bound(__k);
1414 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
1415 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
1416 # if _LIBCPP_STD_VER >= 14
1417 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1418 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
1419 return __tree_.upper_bound(__k);
1421 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1422 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
1423 return __tree_.upper_bound(__k);
1427 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
1428 return __tree_.__equal_range_unique(__k);
1430 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
1431 return __tree_.__equal_range_unique(__k);
1433 # if _LIBCPP_STD_VER >= 14
1434 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1435 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
1436 return __tree_.__equal_range_multi(__k);
1438 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1439 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
1440 return __tree_.__equal_range_multi(__k);
1445 typedef typename __base::__node __node;
1446 typedef typename __base::__node_allocator __node_allocator;
1447 typedef typename __base::__node_pointer __node_pointer;
1448 typedef typename __base::__node_base_pointer __node_base_pointer;
1449 typedef typename __base::__parent_pointer __parent_pointer;
1451 typedef __map_node_destructor<__node_allocator> _Dp;
1452 typedef unique_ptr<__node, _Dp> __node_holder;
1454 # ifdef _LIBCPP_CXX03_LANG
1455 _LIBCPP_HIDE_FROM_ABI __node_holder __construct_node_with_key(const key_type& __k);
1459 # if _LIBCPP_STD_VER >= 17
1460 template <class _InputIterator,
1461 class _Compare = less<__iter_key_type<_InputIterator>>,
1462 class _Allocator = allocator<__iter_to_alloc_type<_InputIterator>>,
1463 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1464 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1465 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1466 map(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
1467 -> map<__iter_key_type<_InputIterator>, __iter_mapped_type<_InputIterator>, _Compare, _Allocator>;
1469 # if _LIBCPP_STD_VER >= 23
1470 template <ranges::input_range _Range,
1471 class _Compare = less<__range_key_type<_Range>>,
1472 class _Allocator = allocator<__range_to_alloc_type<_Range>>,
1473 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1474 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1475 map(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
1476 -> map<__range_key_type<_Range>, __range_mapped_type<_Range>, _Compare, _Allocator>;
1479 template <class _Key,
1481 class _Compare = less<remove_const_t<_Key>>,
1482 class _Allocator = allocator<pair<const _Key, _Tp>>,
1483 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1484 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1485 map(initializer_list<pair<_Key, _Tp>>,
1486 _Compare = _Compare(),
1487 _Allocator = _Allocator()) -> map<remove_const_t<_Key>, _Tp, _Compare, _Allocator>;
1489 template <class _InputIterator,
1491 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1492 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1493 map(_InputIterator, _InputIterator, _Allocator)
1494 -> map<__iter_key_type<_InputIterator>,
1495 __iter_mapped_type<_InputIterator>,
1496 less<__iter_key_type<_InputIterator>>,
1499 # if _LIBCPP_STD_VER >= 23
1500 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1501 map(from_range_t, _Range&&, _Allocator)
1502 -> map<__range_key_type<_Range>, __range_mapped_type<_Range>, less<__range_key_type<_Range>>, _Allocator>;
1505 template <class _Key, class _Tp, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1506 map(initializer_list<pair<_Key, _Tp>>,
1507 _Allocator) -> map<remove_const_t<_Key>, _Tp, less<remove_const_t<_Key>>, _Allocator>;
1510 # ifndef _LIBCPP_CXX03_LANG
1511 template <class _Key, class _Tp, class _Compare, class _Allocator>
1512 map<_Key, _Tp, _Compare, _Allocator>::map(map&& __m, const allocator_type& __a)
1513 : __tree_(std::move(__m.__tree_), typename __base::allocator_type(__a)) {
1514 if (__a != __m.get_allocator()) {
1515 const_iterator __e = cend();
1516 while (!__m.empty())
1517 __tree_.__insert_unique(__e.__i_, __m.__tree_.remove(__m.begin().__i_)->__value_.__move());
1521 template <class _Key, class _Tp, class _Compare, class _Allocator>
1522 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](const key_type& __k) {
1524 .__emplace_unique_key_args(__k, std::piecewise_construct, std::forward_as_tuple(__k), std::forward_as_tuple())
1525 .first->__get_value()
1529 template <class _Key, class _Tp, class _Compare, class _Allocator>
1530 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](key_type&& __k) {
1531 // TODO investigate this clang-tidy warning.
1532 // NOLINTBEGIN(bugprone-use-after-move)
1534 .__emplace_unique_key_args(
1535 __k, std::piecewise_construct, std::forward_as_tuple(std::move(__k)), std::forward_as_tuple())
1536 .first->__get_value()
1538 // NOLINTEND(bugprone-use-after-move)
1541 # else // _LIBCPP_CXX03_LANG
1543 template <class _Key, class _Tp, class _Compare, class _Allocator>
1544 typename map<_Key, _Tp, _Compare, _Allocator>::__node_holder
1545 map<_Key, _Tp, _Compare, _Allocator>::__construct_node_with_key(const key_type& __k) {
1546 __node_allocator& __na = __tree_.__node_alloc();
1547 __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na));
1548 __node_traits::construct(__na, std::addressof(__h->__value_.__get_value().first), __k);
1549 __h.get_deleter().__first_constructed = true;
1550 __node_traits::construct(__na, std::addressof(__h->__value_.__get_value().second));
1551 __h.get_deleter().__second_constructed = true;
1555 template <class _Key, class _Tp, class _Compare, class _Allocator>
1556 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](const key_type& __k) {
1557 __parent_pointer __parent;
1558 __node_base_pointer& __child = __tree_.__find_equal(__parent, __k);
1559 __node_pointer __r = static_cast<__node_pointer>(__child);
1560 if (__child == nullptr) {
1561 __node_holder __h = __construct_node_with_key(__k);
1562 __tree_.__insert_node_at(__parent, __child, static_cast<__node_base_pointer>(__h.get()));
1563 __r = __h.release();
1565 return __r->__value_.__get_value().second;
1568 # endif // _LIBCPP_CXX03_LANG
1570 template <class _Key, class _Tp, class _Compare, class _Allocator>
1571 _Tp& map<_Key, _Tp, _Compare, _Allocator>::at(const key_type& __k) {
1572 __parent_pointer __parent;
1573 __node_base_pointer& __child = __tree_.__find_equal(__parent, __k);
1574 if (__child == nullptr)
1575 __throw_out_of_range("map::at: key not found");
1576 return static_cast<__node_pointer>(__child)->__value_.__get_value().second;
1579 template <class _Key, class _Tp, class _Compare, class _Allocator>
1580 const _Tp& map<_Key, _Tp, _Compare, _Allocator>::at(const key_type& __k) const {
1581 __parent_pointer __parent;
1582 __node_base_pointer __child = __tree_.__find_equal(__parent, __k);
1583 if (__child == nullptr)
1584 __throw_out_of_range("map::at: key not found");
1585 return static_cast<__node_pointer>(__child)->__value_.__get_value().second;
1588 template <class _Key, class _Tp, class _Compare, class _Allocator>
1589 inline _LIBCPP_HIDE_FROM_ABI bool
1590 operator==(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1591 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
1594 # if _LIBCPP_STD_VER <= 17
1596 template <class _Key, class _Tp, class _Compare, class _Allocator>
1597 inline _LIBCPP_HIDE_FROM_ABI bool
1598 operator<(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1599 return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
1602 template <class _Key, class _Tp, class _Compare, class _Allocator>
1603 inline _LIBCPP_HIDE_FROM_ABI bool
1604 operator!=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1605 return !(__x == __y);
1608 template <class _Key, class _Tp, class _Compare, class _Allocator>
1609 inline _LIBCPP_HIDE_FROM_ABI bool
1610 operator>(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1614 template <class _Key, class _Tp, class _Compare, class _Allocator>
1615 inline _LIBCPP_HIDE_FROM_ABI bool
1616 operator>=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1617 return !(__x < __y);
1620 template <class _Key, class _Tp, class _Compare, class _Allocator>
1621 inline _LIBCPP_HIDE_FROM_ABI bool
1622 operator<=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1623 return !(__y < __x);
1626 # else // #if _LIBCPP_STD_VER <= 17
1628 template <class _Key, class _Tp, class _Compare, class _Allocator>
1629 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<pair<const _Key, _Tp>>
1630 operator<=>(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1631 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), std::__synth_three_way);
1634 # endif // #if _LIBCPP_STD_VER <= 17
1636 template <class _Key, class _Tp, class _Compare, class _Allocator>
1637 inline _LIBCPP_HIDE_FROM_ABI void
1638 swap(map<_Key, _Tp, _Compare, _Allocator>& __x, map<_Key, _Tp, _Compare, _Allocator>& __y)
1639 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
1643 # if _LIBCPP_STD_VER >= 20
1644 template <class _Key, class _Tp, class _Compare, class _Allocator, class _Predicate>
1645 inline _LIBCPP_HIDE_FROM_ABI typename map<_Key, _Tp, _Compare, _Allocator>::size_type
1646 erase_if(map<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred) {
1647 return std::__libcpp_erase_if_container(__c, __pred);
1651 template <class _Key, class _Tp, class _Compare, class _Allocator>
1652 struct __container_traits<map<_Key, _Tp, _Compare, _Allocator> > {
1653 // http://eel.is/c++draft/associative.reqmts.except#2
1654 // For associative containers, if an exception is thrown by any operation from within
1655 // an insert or emplace function inserting a single element, the insertion has no effect.
1656 static _LIBCPP_CONSTEXPR const bool __emplacement_has_strong_exception_safety_guarantee = true;
1659 template <class _Key, class _Tp, class _Compare = less<_Key>, class _Allocator = allocator<pair<const _Key, _Tp> > >
1660 class _LIBCPP_TEMPLATE_VIS multimap {
1663 typedef _Key key_type;
1664 typedef _Tp mapped_type;
1665 typedef pair<const key_type, mapped_type> value_type;
1666 typedef __type_identity_t<_Compare> key_compare;
1667 typedef __type_identity_t<_Allocator> allocator_type;
1668 typedef value_type& reference;
1669 typedef const value_type& const_reference;
1671 static_assert(__check_valid_allocator<allocator_type>::value, "");
1672 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
1673 "Allocator::value_type must be same type as value_type");
1675 class _LIBCPP_TEMPLATE_VIS value_compare : public __binary_function<value_type, value_type, bool> {
1676 friend class multimap;
1681 _LIBCPP_HIDE_FROM_ABI value_compare(key_compare __c) : comp(__c) {}
1684 _LIBCPP_HIDE_FROM_ABI bool operator()(const value_type& __x, const value_type& __y) const {
1685 return comp(__x.first, __y.first);
1690 typedef std::__value_type<key_type, mapped_type> __value_type;
1691 typedef __map_value_compare<key_type, __value_type, key_compare> __vc;
1692 typedef __rebind_alloc<allocator_traits<allocator_type>, __value_type> __allocator_type;
1693 typedef __tree<__value_type, __vc, __allocator_type> __base;
1694 typedef typename __base::__node_traits __node_traits;
1695 typedef allocator_traits<allocator_type> __alloc_traits;
1700 typedef typename __alloc_traits::pointer pointer;
1701 typedef typename __alloc_traits::const_pointer const_pointer;
1702 typedef typename __alloc_traits::size_type size_type;
1703 typedef typename __alloc_traits::difference_type difference_type;
1704 typedef __map_iterator<typename __base::iterator> iterator;
1705 typedef __map_const_iterator<typename __base::const_iterator> const_iterator;
1706 typedef std::reverse_iterator<iterator> reverse_iterator;
1707 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
1709 # if _LIBCPP_STD_VER >= 17
1710 typedef __map_node_handle<typename __base::__node, allocator_type> node_type;
1713 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1714 friend class _LIBCPP_TEMPLATE_VIS map;
1715 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1716 friend class _LIBCPP_TEMPLATE_VIS multimap;
1718 _LIBCPP_HIDE_FROM_ABI multimap() _NOEXCEPT_(
1719 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
1720 is_nothrow_copy_constructible<key_compare>::value)
1721 : __tree_(__vc(key_compare())) {}
1723 _LIBCPP_HIDE_FROM_ABI explicit multimap(const key_compare& __comp) _NOEXCEPT_(
1724 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
1725 : __tree_(__vc(__comp)) {}
1727 _LIBCPP_HIDE_FROM_ABI explicit multimap(const key_compare& __comp, const allocator_type& __a)
1728 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {}
1730 template <class _InputIterator>
1731 _LIBCPP_HIDE_FROM_ABI multimap(_InputIterator __f, _InputIterator __l, const key_compare& __comp = key_compare())
1732 : __tree_(__vc(__comp)) {
1736 template <class _InputIterator>
1737 _LIBCPP_HIDE_FROM_ABI
1738 multimap(_InputIterator __f, _InputIterator __l, const key_compare& __comp, const allocator_type& __a)
1739 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1743 # if _LIBCPP_STD_VER >= 23
1744 template <_ContainerCompatibleRange<value_type> _Range>
1745 _LIBCPP_HIDE_FROM_ABI
1746 multimap(from_range_t,
1748 const key_compare& __comp = key_compare(),
1749 const allocator_type& __a = allocator_type())
1750 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1751 insert_range(std::forward<_Range>(__range));
1755 # if _LIBCPP_STD_VER >= 14
1756 template <class _InputIterator>
1757 _LIBCPP_HIDE_FROM_ABI multimap(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1758 : multimap(__f, __l, key_compare(), __a) {}
1761 # if _LIBCPP_STD_VER >= 23
1762 template <_ContainerCompatibleRange<value_type> _Range>
1763 _LIBCPP_HIDE_FROM_ABI multimap(from_range_t, _Range&& __range, const allocator_type& __a)
1764 : multimap(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
1767 _LIBCPP_HIDE_FROM_ABI multimap(const multimap& __m)
1768 : __tree_(__m.__tree_.value_comp(),
1769 __alloc_traits::select_on_container_copy_construction(__m.__tree_.__alloc())) {
1770 insert(__m.begin(), __m.end());
1773 _LIBCPP_HIDE_FROM_ABI multimap& operator=(const multimap& __m) {
1774 # ifndef _LIBCPP_CXX03_LANG
1775 __tree_ = __m.__tree_;
1777 if (this != std::addressof(__m)) {
1779 __tree_.value_comp() = __m.__tree_.value_comp();
1780 __tree_.__copy_assign_alloc(__m.__tree_);
1781 insert(__m.begin(), __m.end());
1787 # ifndef _LIBCPP_CXX03_LANG
1789 _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m) noexcept(is_nothrow_move_constructible<__base>::value)
1790 : __tree_(std::move(__m.__tree_)) {}
1792 _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m, const allocator_type& __a);
1794 _LIBCPP_HIDE_FROM_ABI multimap& operator=(multimap&& __m) noexcept(is_nothrow_move_assignable<__base>::value) {
1795 __tree_ = std::move(__m.__tree_);
1799 _LIBCPP_HIDE_FROM_ABI multimap(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
1800 : __tree_(__vc(__comp)) {
1801 insert(__il.begin(), __il.end());
1804 _LIBCPP_HIDE_FROM_ABI
1805 multimap(initializer_list<value_type> __il, const key_compare& __comp, const allocator_type& __a)
1806 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1807 insert(__il.begin(), __il.end());
1810 # if _LIBCPP_STD_VER >= 14
1811 _LIBCPP_HIDE_FROM_ABI multimap(initializer_list<value_type> __il, const allocator_type& __a)
1812 : multimap(__il, key_compare(), __a) {}
1815 _LIBCPP_HIDE_FROM_ABI multimap& operator=(initializer_list<value_type> __il) {
1816 __tree_.__assign_multi(__il.begin(), __il.end());
1820 # endif // _LIBCPP_CXX03_LANG
1822 _LIBCPP_HIDE_FROM_ABI explicit multimap(const allocator_type& __a) : __tree_(typename __base::allocator_type(__a)) {}
1824 _LIBCPP_HIDE_FROM_ABI multimap(const multimap& __m, const allocator_type& __a)
1825 : __tree_(__m.__tree_.value_comp(), typename __base::allocator_type(__a)) {
1826 insert(__m.begin(), __m.end());
1829 _LIBCPP_HIDE_FROM_ABI ~multimap() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
1831 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
1832 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
1833 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
1834 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
1836 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
1837 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
1838 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
1839 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
1841 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
1842 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
1843 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
1844 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
1846 [[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
1847 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
1848 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
1850 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return allocator_type(__tree_.__alloc()); }
1851 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp().key_comp(); }
1852 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return value_compare(__tree_.value_comp().key_comp()); }
1854 # ifndef _LIBCPP_CXX03_LANG
1856 template <class... _Args>
1857 _LIBCPP_HIDE_FROM_ABI iterator emplace(_Args&&... __args) {
1858 return __tree_.__emplace_multi(std::forward<_Args>(__args)...);
1861 template <class... _Args>
1862 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
1863 return __tree_.__emplace_hint_multi(__p.__i_, std::forward<_Args>(__args)...);
1866 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1867 _LIBCPP_HIDE_FROM_ABI iterator insert(_Pp&& __p) {
1868 return __tree_.__insert_multi(std::forward<_Pp>(__p));
1871 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1872 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __pos, _Pp&& __p) {
1873 return __tree_.__insert_multi(__pos.__i_, std::forward<_Pp>(__p));
1876 _LIBCPP_HIDE_FROM_ABI iterator insert(value_type&& __v) { return __tree_.__insert_multi(std::move(__v)); }
1878 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
1879 return __tree_.__insert_multi(__p.__i_, std::move(__v));
1882 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
1884 # endif // _LIBCPP_CXX03_LANG
1886 _LIBCPP_HIDE_FROM_ABI iterator insert(const value_type& __v) { return __tree_.__insert_multi(__v); }
1888 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
1889 return __tree_.__insert_multi(__p.__i_, __v);
1892 template <class _InputIterator>
1893 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
1894 for (const_iterator __e = cend(); __f != __l; ++__f)
1895 __tree_.__insert_multi(__e.__i_, *__f);
1898 # if _LIBCPP_STD_VER >= 23
1899 template <_ContainerCompatibleRange<value_type> _Range>
1900 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
1901 const_iterator __end = cend();
1902 for (auto&& __element : __range) {
1903 __tree_.__insert_multi(__end.__i_, std::forward<decltype(__element)>(__element));
1908 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p.__i_); }
1909 _LIBCPP_HIDE_FROM_ABI iterator erase(iterator __p) { return __tree_.erase(__p.__i_); }
1910 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_multi(__k); }
1911 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) {
1912 return __tree_.erase(__f.__i_, __l.__i_);
1915 # if _LIBCPP_STD_VER >= 17
1916 _LIBCPP_HIDE_FROM_ABI iterator insert(node_type&& __nh) {
1917 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1918 "node_type with incompatible allocator passed to multimap::insert()");
1919 return __tree_.template __node_handle_insert_multi<node_type>(std::move(__nh));
1921 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
1922 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1923 "node_type with incompatible allocator passed to multimap::insert()");
1924 return __tree_.template __node_handle_insert_multi<node_type>(__hint.__i_, std::move(__nh));
1926 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
1927 return __tree_.template __node_handle_extract<node_type>(__key);
1929 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
1930 return __tree_.template __node_handle_extract<node_type>(__it.__i_);
1932 template <class _Compare2>
1933 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1934 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1935 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1936 return __tree_.__node_handle_merge_multi(__source.__tree_);
1938 template <class _Compare2>
1939 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1940 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1941 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1942 return __tree_.__node_handle_merge_multi(__source.__tree_);
1944 template <class _Compare2>
1945 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1946 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1947 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1948 return __tree_.__node_handle_merge_multi(__source.__tree_);
1950 template <class _Compare2>
1951 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1952 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1953 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1954 return __tree_.__node_handle_merge_multi(__source.__tree_);
1958 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
1960 _LIBCPP_HIDE_FROM_ABI void swap(multimap& __m) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) {
1961 __tree_.swap(__m.__tree_);
1964 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
1965 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
1966 # if _LIBCPP_STD_VER >= 14
1967 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1968 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
1969 return __tree_.find(__k);
1971 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1972 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
1973 return __tree_.find(__k);
1977 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_multi(__k); }
1978 # if _LIBCPP_STD_VER >= 14
1979 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1980 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
1981 return __tree_.__count_multi(__k);
1985 # if _LIBCPP_STD_VER >= 20
1986 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
1987 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1988 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
1989 return find(__k) != end();
1991 # endif // _LIBCPP_STD_VER >= 20
1993 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
1994 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
1995 # if _LIBCPP_STD_VER >= 14
1996 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1997 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
1998 return __tree_.lower_bound(__k);
2001 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2002 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
2003 return __tree_.lower_bound(__k);
2007 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
2008 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
2009 # if _LIBCPP_STD_VER >= 14
2010 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2011 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
2012 return __tree_.upper_bound(__k);
2014 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2015 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
2016 return __tree_.upper_bound(__k);
2020 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
2021 return __tree_.__equal_range_multi(__k);
2023 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
2024 return __tree_.__equal_range_multi(__k);
2026 # if _LIBCPP_STD_VER >= 14
2027 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2028 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
2029 return __tree_.__equal_range_multi(__k);
2031 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2032 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
2033 return __tree_.__equal_range_multi(__k);
2038 typedef typename __base::__node __node;
2039 typedef typename __base::__node_allocator __node_allocator;
2040 typedef typename __base::__node_pointer __node_pointer;
2042 typedef __map_node_destructor<__node_allocator> _Dp;
2043 typedef unique_ptr<__node, _Dp> __node_holder;
2046 # if _LIBCPP_STD_VER >= 17
2047 template <class _InputIterator,
2048 class _Compare = less<__iter_key_type<_InputIterator>>,
2049 class _Allocator = allocator<__iter_to_alloc_type<_InputIterator>>,
2050 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
2051 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2052 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2053 multimap(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
2054 -> multimap<__iter_key_type<_InputIterator>, __iter_mapped_type<_InputIterator>, _Compare, _Allocator>;
2056 # if _LIBCPP_STD_VER >= 23
2057 template <ranges::input_range _Range,
2058 class _Compare = less<__range_key_type<_Range>>,
2059 class _Allocator = allocator<__range_to_alloc_type<_Range>>,
2060 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2061 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2062 multimap(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
2063 -> multimap<__range_key_type<_Range>, __range_mapped_type<_Range>, _Compare, _Allocator>;
2066 template <class _Key,
2068 class _Compare = less<remove_const_t<_Key>>,
2069 class _Allocator = allocator<pair<const _Key, _Tp>>,
2070 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2071 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2072 multimap(initializer_list<pair<_Key, _Tp>>,
2073 _Compare = _Compare(),
2074 _Allocator = _Allocator()) -> multimap<remove_const_t<_Key>, _Tp, _Compare, _Allocator>;
2076 template <class _InputIterator,
2078 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
2079 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2080 multimap(_InputIterator, _InputIterator, _Allocator)
2081 -> multimap<__iter_key_type<_InputIterator>,
2082 __iter_mapped_type<_InputIterator>,
2083 less<__iter_key_type<_InputIterator>>,
2086 # if _LIBCPP_STD_VER >= 23
2087 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2088 multimap(from_range_t, _Range&&, _Allocator)
2089 -> multimap<__range_key_type<_Range>, __range_mapped_type<_Range>, less<__range_key_type<_Range>>, _Allocator>;
2092 template <class _Key, class _Tp, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2093 multimap(initializer_list<pair<_Key, _Tp>>,
2094 _Allocator) -> multimap<remove_const_t<_Key>, _Tp, less<remove_const_t<_Key>>, _Allocator>;
2097 # ifndef _LIBCPP_CXX03_LANG
2098 template <class _Key, class _Tp, class _Compare, class _Allocator>
2099 multimap<_Key, _Tp, _Compare, _Allocator>::multimap(multimap&& __m, const allocator_type& __a)
2100 : __tree_(std::move(__m.__tree_), typename __base::allocator_type(__a)) {
2101 if (__a != __m.get_allocator()) {
2102 const_iterator __e = cend();
2103 while (!__m.empty())
2104 __tree_.__insert_multi(__e.__i_, std::move(__m.__tree_.remove(__m.begin().__i_)->__value_.__move()));
2109 template <class _Key, class _Tp, class _Compare, class _Allocator>
2110 inline _LIBCPP_HIDE_FROM_ABI bool
2111 operator==(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2112 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
2115 # if _LIBCPP_STD_VER <= 17
2117 template <class _Key, class _Tp, class _Compare, class _Allocator>
2118 inline _LIBCPP_HIDE_FROM_ABI bool
2119 operator<(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2120 return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
2123 template <class _Key, class _Tp, class _Compare, class _Allocator>
2124 inline _LIBCPP_HIDE_FROM_ABI bool
2125 operator!=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2126 return !(__x == __y);
2129 template <class _Key, class _Tp, class _Compare, class _Allocator>
2130 inline _LIBCPP_HIDE_FROM_ABI bool
2131 operator>(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2135 template <class _Key, class _Tp, class _Compare, class _Allocator>
2136 inline _LIBCPP_HIDE_FROM_ABI bool
2137 operator>=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2138 return !(__x < __y);
2141 template <class _Key, class _Tp, class _Compare, class _Allocator>
2142 inline _LIBCPP_HIDE_FROM_ABI bool
2143 operator<=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2144 return !(__y < __x);
2147 # else // #if _LIBCPP_STD_VER <= 17
2149 template <class _Key, class _Tp, class _Compare, class _Allocator>
2150 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<pair<const _Key, _Tp>>
2151 operator<=>(const multimap<_Key, _Tp, _Compare, _Allocator>& __x,
2152 const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2153 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), __synth_three_way);
2156 # endif // #if _LIBCPP_STD_VER <= 17
2158 template <class _Key, class _Tp, class _Compare, class _Allocator>
2159 inline _LIBCPP_HIDE_FROM_ABI void
2160 swap(multimap<_Key, _Tp, _Compare, _Allocator>& __x, multimap<_Key, _Tp, _Compare, _Allocator>& __y)
2161 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
2165 # if _LIBCPP_STD_VER >= 20
2166 template <class _Key, class _Tp, class _Compare, class _Allocator, class _Predicate>
2167 inline _LIBCPP_HIDE_FROM_ABI typename multimap<_Key, _Tp, _Compare, _Allocator>::size_type
2168 erase_if(multimap<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred) {
2169 return std::__libcpp_erase_if_container(__c, __pred);
2173 template <class _Key, class _Tp, class _Compare, class _Allocator>
2174 struct __container_traits<multimap<_Key, _Tp, _Compare, _Allocator> > {
2175 // http://eel.is/c++draft/associative.reqmts.except#2
2176 // For associative containers, if an exception is thrown by any operation from within
2177 // an insert or emplace function inserting a single element, the insertion has no effect.
2178 static _LIBCPP_CONSTEXPR const bool __emplacement_has_strong_exception_safety_guarantee = true;
2181 _LIBCPP_END_NAMESPACE_STD
2183 # if _LIBCPP_STD_VER >= 17
2184 _LIBCPP_BEGIN_NAMESPACE_STD
2186 template <class _KeyT, class _ValueT, class _CompareT = std::less<_KeyT>>
2187 using map _LIBCPP_AVAILABILITY_PMR =
2188 std::map<_KeyT, _ValueT, _CompareT, polymorphic_allocator<std::pair<const _KeyT, _ValueT>>>;
2190 template <class _KeyT, class _ValueT, class _CompareT = std::less<_KeyT>>
2191 using multimap _LIBCPP_AVAILABILITY_PMR =
2192 std::multimap<_KeyT, _ValueT, _CompareT, polymorphic_allocator<std::pair<const _KeyT, _ValueT>>>;
2194 _LIBCPP_END_NAMESPACE_STD
2199 # if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
2200 # include <concepts>
2202 # include <functional>
2203 # include <iterator>
2204 # include <type_traits>
2207 #endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
2209 #endif // _LIBCPP_MAP