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 <__cxx03/__algorithm/equal.h>
575 #include <__cxx03/__algorithm/lexicographical_compare.h>
576 #include <__cxx03/__algorithm/lexicographical_compare_three_way.h>
577 #include <__cxx03/__assert>
578 #include <__cxx03/__config>
579 #include <__cxx03/__functional/binary_function.h>
580 #include <__cxx03/__functional/is_transparent.h>
581 #include <__cxx03/__functional/operations.h>
582 #include <__cxx03/__iterator/erase_if_container.h>
583 #include <__cxx03/__iterator/iterator_traits.h>
584 #include <__cxx03/__iterator/ranges_iterator_traits.h>
585 #include <__cxx03/__iterator/reverse_iterator.h>
586 #include <__cxx03/__memory/addressof.h>
587 #include <__cxx03/__memory/allocator.h>
588 #include <__cxx03/__memory_resource/polymorphic_allocator.h>
589 #include <__cxx03/__node_handle>
590 #include <__cxx03/__ranges/concepts.h>
591 #include <__cxx03/__ranges/container_compatible_range.h>
592 #include <__cxx03/__ranges/from_range.h>
593 #include <__cxx03/__tree>
594 #include <__cxx03/__type_traits/is_allocator.h>
595 #include <__cxx03/__utility/forward.h>
596 #include <__cxx03/__utility/piecewise_construct.h>
597 #include <__cxx03/__utility/swap.h>
598 #include <__cxx03/stdexcept>
599 #include <__cxx03/tuple>
600 #include <__cxx03/version>
602 // standard-mandated includes
605 #include <__cxx03/__iterator/access.h>
606 #include <__cxx03/__iterator/data.h>
607 #include <__cxx03/__iterator/empty.h>
608 #include <__cxx03/__iterator/reverse_access.h>
609 #include <__cxx03/__iterator/size.h>
611 // [associative.map.syn]
612 #include <__cxx03/compare>
613 #include <__cxx03/initializer_list>
615 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
616 # pragma GCC system_header
620 #include <__cxx03/__undef_macros>
622 _LIBCPP_BEGIN_NAMESPACE_STD
624 template <class _Key,
627 bool = is_empty<_Compare>::value && !__libcpp_is_final<_Compare>::value>
628 class __map_value_compare : private _Compare {
630 _LIBCPP_HIDE_FROM_ABI __map_value_compare() _NOEXCEPT_(is_nothrow_default_constructible<_Compare>::value)
632 _LIBCPP_HIDE_FROM_ABI __map_value_compare(_Compare __c) _NOEXCEPT_(is_nothrow_copy_constructible<_Compare>::value)
634 _LIBCPP_HIDE_FROM_ABI const _Compare& key_comp() const _NOEXCEPT { return *this; }
635 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _CP& __y) const {
636 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y.__get_value().first);
638 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _Key& __y) const {
639 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y);
641 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Key& __x, const _CP& __y) const {
642 return static_cast<const _Compare&>(*this)(__x, __y.__get_value().first);
644 _LIBCPP_HIDE_FROM_ABI void swap(__map_value_compare& __y) _NOEXCEPT_(__is_nothrow_swappable_v<_Compare>) {
646 swap(static_cast<_Compare&>(*this), static_cast<_Compare&>(__y));
649 #if _LIBCPP_STD_VER >= 14
650 template <typename _K2>
651 _LIBCPP_HIDE_FROM_ABI bool operator()(const _K2& __x, const _CP& __y) const {
652 return static_cast<const _Compare&>(*this)(__x, __y.__get_value().first);
655 template <typename _K2>
656 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _K2& __y) const {
657 return static_cast<const _Compare&>(*this)(__x.__get_value().first, __y);
662 template <class _Key, class _CP, class _Compare>
663 class __map_value_compare<_Key, _CP, _Compare, false> {
667 _LIBCPP_HIDE_FROM_ABI __map_value_compare() _NOEXCEPT_(is_nothrow_default_constructible<_Compare>::value)
669 _LIBCPP_HIDE_FROM_ABI __map_value_compare(_Compare __c) _NOEXCEPT_(is_nothrow_copy_constructible<_Compare>::value)
671 _LIBCPP_HIDE_FROM_ABI const _Compare& key_comp() const _NOEXCEPT { return __comp_; }
673 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _CP& __y) const {
674 return __comp_(__x.__get_value().first, __y.__get_value().first);
676 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _Key& __y) const {
677 return __comp_(__x.__get_value().first, __y);
679 _LIBCPP_HIDE_FROM_ABI bool operator()(const _Key& __x, const _CP& __y) const {
680 return __comp_(__x, __y.__get_value().first);
682 void swap(__map_value_compare& __y) _NOEXCEPT_(__is_nothrow_swappable_v<_Compare>) {
684 swap(__comp_, __y.__comp_);
687 #if _LIBCPP_STD_VER >= 14
688 template <typename _K2>
689 _LIBCPP_HIDE_FROM_ABI bool operator()(const _K2& __x, const _CP& __y) const {
690 return __comp_(__x, __y.__get_value().first);
693 template <typename _K2>
694 _LIBCPP_HIDE_FROM_ABI bool operator()(const _CP& __x, const _K2& __y) const {
695 return __comp_(__x.__get_value().first, __y);
700 template <class _Key, class _CP, class _Compare, bool __b>
701 inline _LIBCPP_HIDE_FROM_ABI void
702 swap(__map_value_compare<_Key, _CP, _Compare, __b>& __x, __map_value_compare<_Key, _CP, _Compare, __b>& __y)
703 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
707 template <class _Allocator>
708 class __map_node_destructor {
709 typedef _Allocator allocator_type;
710 typedef allocator_traits<allocator_type> __alloc_traits;
713 typedef typename __alloc_traits::pointer pointer;
716 allocator_type& __na_;
719 bool __first_constructed;
720 bool __second_constructed;
722 _LIBCPP_HIDE_FROM_ABI explicit __map_node_destructor(allocator_type& __na) _NOEXCEPT
724 __first_constructed(false),
725 __second_constructed(false) {}
727 #ifndef _LIBCPP_CXX03_LANG
728 _LIBCPP_HIDE_FROM_ABI __map_node_destructor(__tree_node_destructor<allocator_type>&& __x) _NOEXCEPT
730 __first_constructed(__x.__value_constructed),
731 __second_constructed(__x.__value_constructed) {
732 __x.__value_constructed = false;
734 #endif // _LIBCPP_CXX03_LANG
736 __map_node_destructor& operator=(const __map_node_destructor&) = delete;
738 _LIBCPP_HIDE_FROM_ABI void operator()(pointer __p) _NOEXCEPT {
739 if (__second_constructed)
740 __alloc_traits::destroy(__na_, std::addressof(__p->__value_.__get_value().second));
741 if (__first_constructed)
742 __alloc_traits::destroy(__na_, std::addressof(__p->__value_.__get_value().first));
744 __alloc_traits::deallocate(__na_, __p, 1);
748 template <class _Key, class _Tp, class _Compare, class _Allocator>
750 template <class _Key, class _Tp, class _Compare, class _Allocator>
752 template <class _TreeIterator>
753 class __map_const_iterator;
755 #ifndef _LIBCPP_CXX03_LANG
757 template <class _Key, class _Tp>
758 struct _LIBCPP_STANDALONE_DEBUG __value_type {
759 typedef _Key key_type;
760 typedef _Tp mapped_type;
761 typedef pair<const key_type, mapped_type> value_type;
762 typedef pair<key_type&, mapped_type&> __nc_ref_pair_type;
763 typedef pair<key_type&&, mapped_type&&> __nc_rref_pair_type;
769 _LIBCPP_HIDE_FROM_ABI value_type& __get_value() {
770 # if _LIBCPP_STD_VER >= 17
771 return *std::launder(std::addressof(__cc_));
777 _LIBCPP_HIDE_FROM_ABI const value_type& __get_value() const {
778 # if _LIBCPP_STD_VER >= 17
779 return *std::launder(std::addressof(__cc_));
785 _LIBCPP_HIDE_FROM_ABI __nc_ref_pair_type __ref() {
786 value_type& __v = __get_value();
787 return __nc_ref_pair_type(const_cast<key_type&>(__v.first), __v.second);
790 _LIBCPP_HIDE_FROM_ABI __nc_rref_pair_type __move() {
791 value_type& __v = __get_value();
792 return __nc_rref_pair_type(std::move(const_cast<key_type&>(__v.first)), std::move(__v.second));
795 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(const __value_type& __v) {
796 __ref() = __v.__get_value();
800 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(__value_type&& __v) {
801 __ref() = __v.__move();
805 template <class _ValueTp, __enable_if_t<__is_same_uncvref<_ValueTp, value_type>::value, int> = 0>
806 _LIBCPP_HIDE_FROM_ABI __value_type& operator=(_ValueTp&& __v) {
807 __ref() = std::forward<_ValueTp>(__v);
811 __value_type() = delete;
812 ~__value_type() = delete;
813 __value_type(const __value_type&) = delete;
814 __value_type(__value_type&&) = delete;
819 template <class _Key, class _Tp>
820 struct __value_type {
821 typedef _Key key_type;
822 typedef _Tp mapped_type;
823 typedef pair<const key_type, mapped_type> value_type;
829 _LIBCPP_HIDE_FROM_ABI value_type& __get_value() { return __cc_; }
830 _LIBCPP_HIDE_FROM_ABI const value_type& __get_value() const { return __cc_; }
832 __value_type() = delete;
833 __value_type(__value_type const&) = delete;
834 __value_type& operator=(__value_type const&) = delete;
835 ~__value_type() = delete;
838 #endif // _LIBCPP_CXX03_LANG
841 struct __extract_key_value_types;
843 template <class _Key, class _Tp>
844 struct __extract_key_value_types<__value_type<_Key, _Tp> > {
845 typedef _Key const __key_type;
846 typedef _Tp __mapped_type;
849 template <class _TreeIterator>
850 class _LIBCPP_TEMPLATE_VIS __map_iterator {
851 typedef typename _TreeIterator::_NodeTypes _NodeTypes;
852 typedef typename _TreeIterator::__pointer_traits __pointer_traits;
857 typedef bidirectional_iterator_tag iterator_category;
858 typedef typename _NodeTypes::__map_value_type value_type;
859 typedef typename _TreeIterator::difference_type difference_type;
860 typedef value_type& reference;
861 typedef typename _NodeTypes::__map_value_type_pointer pointer;
863 _LIBCPP_HIDE_FROM_ABI __map_iterator() _NOEXCEPT {}
865 _LIBCPP_HIDE_FROM_ABI __map_iterator(_TreeIterator __i) _NOEXCEPT : __i_(__i) {}
867 _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __i_->__get_value(); }
868 _LIBCPP_HIDE_FROM_ABI pointer operator->() const { return pointer_traits<pointer>::pointer_to(__i_->__get_value()); }
870 _LIBCPP_HIDE_FROM_ABI __map_iterator& operator++() {
874 _LIBCPP_HIDE_FROM_ABI __map_iterator operator++(int) {
875 __map_iterator __t(*this);
880 _LIBCPP_HIDE_FROM_ABI __map_iterator& operator--() {
884 _LIBCPP_HIDE_FROM_ABI __map_iterator operator--(int) {
885 __map_iterator __t(*this);
890 friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __map_iterator& __x, const __map_iterator& __y) {
891 return __x.__i_ == __y.__i_;
893 friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __map_iterator& __x, const __map_iterator& __y) {
894 return __x.__i_ != __y.__i_;
897 template <class, class, class, class>
898 friend class _LIBCPP_TEMPLATE_VIS map;
899 template <class, class, class, class>
900 friend class _LIBCPP_TEMPLATE_VIS multimap;
902 friend class _LIBCPP_TEMPLATE_VIS __map_const_iterator;
905 template <class _TreeIterator>
906 class _LIBCPP_TEMPLATE_VIS __map_const_iterator {
907 typedef typename _TreeIterator::_NodeTypes _NodeTypes;
908 typedef typename _TreeIterator::__pointer_traits __pointer_traits;
913 typedef bidirectional_iterator_tag iterator_category;
914 typedef typename _NodeTypes::__map_value_type value_type;
915 typedef typename _TreeIterator::difference_type difference_type;
916 typedef const value_type& reference;
917 typedef typename _NodeTypes::__const_map_value_type_pointer pointer;
919 _LIBCPP_HIDE_FROM_ABI __map_const_iterator() _NOEXCEPT {}
921 _LIBCPP_HIDE_FROM_ABI __map_const_iterator(_TreeIterator __i) _NOEXCEPT : __i_(__i) {}
922 _LIBCPP_HIDE_FROM_ABI
923 __map_const_iterator(__map_iterator< typename _TreeIterator::__non_const_iterator> __i) _NOEXCEPT : __i_(__i.__i_) {}
925 _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __i_->__get_value(); }
926 _LIBCPP_HIDE_FROM_ABI pointer operator->() const { return pointer_traits<pointer>::pointer_to(__i_->__get_value()); }
928 _LIBCPP_HIDE_FROM_ABI __map_const_iterator& operator++() {
932 _LIBCPP_HIDE_FROM_ABI __map_const_iterator operator++(int) {
933 __map_const_iterator __t(*this);
938 _LIBCPP_HIDE_FROM_ABI __map_const_iterator& operator--() {
942 _LIBCPP_HIDE_FROM_ABI __map_const_iterator operator--(int) {
943 __map_const_iterator __t(*this);
948 friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __map_const_iterator& __x, const __map_const_iterator& __y) {
949 return __x.__i_ == __y.__i_;
951 friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __map_const_iterator& __x, const __map_const_iterator& __y) {
952 return __x.__i_ != __y.__i_;
955 template <class, class, class, class>
956 friend class _LIBCPP_TEMPLATE_VIS map;
957 template <class, class, class, class>
958 friend class _LIBCPP_TEMPLATE_VIS multimap;
959 template <class, class, class>
960 friend class _LIBCPP_TEMPLATE_VIS __tree_const_iterator;
963 template <class _Key, class _Tp, class _Compare = less<_Key>, class _Allocator = allocator<pair<const _Key, _Tp> > >
964 class _LIBCPP_TEMPLATE_VIS map {
967 typedef _Key key_type;
968 typedef _Tp mapped_type;
969 typedef pair<const key_type, mapped_type> value_type;
970 typedef __type_identity_t<_Compare> key_compare;
971 typedef __type_identity_t<_Allocator> allocator_type;
972 typedef value_type& reference;
973 typedef const value_type& const_reference;
975 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
976 "Allocator::value_type must be same type as value_type");
978 class _LIBCPP_TEMPLATE_VIS value_compare : public __binary_function<value_type, value_type, bool> {
984 _LIBCPP_HIDE_FROM_ABI value_compare(key_compare __c) : comp(__c) {}
987 _LIBCPP_HIDE_FROM_ABI bool operator()(const value_type& __x, const value_type& __y) const {
988 return comp(__x.first, __y.first);
993 typedef std::__value_type<key_type, mapped_type> __value_type;
994 typedef __map_value_compare<key_type, __value_type, key_compare> __vc;
995 typedef __rebind_alloc<allocator_traits<allocator_type>, __value_type> __allocator_type;
996 typedef __tree<__value_type, __vc, __allocator_type> __base;
997 typedef typename __base::__node_traits __node_traits;
998 typedef allocator_traits<allocator_type> __alloc_traits;
1000 static_assert(__check_valid_allocator<allocator_type>::value, "");
1005 typedef typename __alloc_traits::pointer pointer;
1006 typedef typename __alloc_traits::const_pointer const_pointer;
1007 typedef typename __alloc_traits::size_type size_type;
1008 typedef typename __alloc_traits::difference_type difference_type;
1009 typedef __map_iterator<typename __base::iterator> iterator;
1010 typedef __map_const_iterator<typename __base::const_iterator> const_iterator;
1011 typedef std::reverse_iterator<iterator> reverse_iterator;
1012 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
1014 #if _LIBCPP_STD_VER >= 17
1015 typedef __map_node_handle<typename __base::__node, allocator_type> node_type;
1016 typedef __insert_return_type<iterator, node_type> insert_return_type;
1019 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1020 friend class _LIBCPP_TEMPLATE_VIS map;
1021 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1022 friend class _LIBCPP_TEMPLATE_VIS multimap;
1024 _LIBCPP_HIDE_FROM_ABI map() _NOEXCEPT_(
1025 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
1026 is_nothrow_copy_constructible<key_compare>::value)
1027 : __tree_(__vc(key_compare())) {}
1029 _LIBCPP_HIDE_FROM_ABI explicit map(const key_compare& __comp) _NOEXCEPT_(
1030 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
1031 : __tree_(__vc(__comp)) {}
1033 _LIBCPP_HIDE_FROM_ABI explicit map(const key_compare& __comp, const allocator_type& __a)
1034 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {}
1036 template <class _InputIterator>
1037 _LIBCPP_HIDE_FROM_ABI map(_InputIterator __f, _InputIterator __l, const key_compare& __comp = key_compare())
1038 : __tree_(__vc(__comp)) {
1042 template <class _InputIterator>
1043 _LIBCPP_HIDE_FROM_ABI
1044 map(_InputIterator __f, _InputIterator __l, const key_compare& __comp, const allocator_type& __a)
1045 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1049 #if _LIBCPP_STD_VER >= 23
1050 template <_ContainerCompatibleRange<value_type> _Range>
1051 _LIBCPP_HIDE_FROM_ABI
1054 const key_compare& __comp = key_compare(),
1055 const allocator_type& __a = allocator_type())
1056 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1057 insert_range(std::forward<_Range>(__range));
1061 #if _LIBCPP_STD_VER >= 14
1062 template <class _InputIterator>
1063 _LIBCPP_HIDE_FROM_ABI map(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1064 : map(__f, __l, key_compare(), __a) {}
1067 #if _LIBCPP_STD_VER >= 23
1068 template <_ContainerCompatibleRange<value_type> _Range>
1069 _LIBCPP_HIDE_FROM_ABI map(from_range_t, _Range&& __range, const allocator_type& __a)
1070 : map(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
1073 _LIBCPP_HIDE_FROM_ABI map(const map& __m) : __tree_(__m.__tree_) { insert(__m.begin(), __m.end()); }
1075 _LIBCPP_HIDE_FROM_ABI map& operator=(const map& __m) {
1076 #ifndef _LIBCPP_CXX03_LANG
1077 __tree_ = __m.__tree_;
1079 if (this != std::addressof(__m)) {
1081 __tree_.value_comp() = __m.__tree_.value_comp();
1082 __tree_.__copy_assign_alloc(__m.__tree_);
1083 insert(__m.begin(), __m.end());
1089 #ifndef _LIBCPP_CXX03_LANG
1091 _LIBCPP_HIDE_FROM_ABI map(map&& __m) noexcept(is_nothrow_move_constructible<__base>::value)
1092 : __tree_(std::move(__m.__tree_)) {}
1094 _LIBCPP_HIDE_FROM_ABI map(map&& __m, const allocator_type& __a);
1096 _LIBCPP_HIDE_FROM_ABI map& operator=(map&& __m) noexcept(is_nothrow_move_assignable<__base>::value) {
1097 __tree_ = std::move(__m.__tree_);
1101 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
1102 : __tree_(__vc(__comp)) {
1103 insert(__il.begin(), __il.end());
1106 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const key_compare& __comp, const allocator_type& __a)
1107 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1108 insert(__il.begin(), __il.end());
1111 # if _LIBCPP_STD_VER >= 14
1112 _LIBCPP_HIDE_FROM_ABI map(initializer_list<value_type> __il, const allocator_type& __a)
1113 : map(__il, key_compare(), __a) {}
1116 _LIBCPP_HIDE_FROM_ABI map& operator=(initializer_list<value_type> __il) {
1117 __tree_.__assign_unique(__il.begin(), __il.end());
1121 #endif // _LIBCPP_CXX03_LANG
1123 _LIBCPP_HIDE_FROM_ABI explicit map(const allocator_type& __a) : __tree_(typename __base::allocator_type(__a)) {}
1125 _LIBCPP_HIDE_FROM_ABI map(const map& __m, const allocator_type& __a)
1126 : __tree_(__m.__tree_.value_comp(), typename __base::allocator_type(__a)) {
1127 insert(__m.begin(), __m.end());
1130 _LIBCPP_HIDE_FROM_ABI ~map() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
1132 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
1133 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
1134 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
1135 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
1137 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
1138 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
1139 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
1140 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
1142 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
1143 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
1144 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
1145 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
1147 _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
1148 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
1149 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
1151 _LIBCPP_HIDE_FROM_ABI mapped_type& operator[](const key_type& __k);
1152 #ifndef _LIBCPP_CXX03_LANG
1153 _LIBCPP_HIDE_FROM_ABI mapped_type& operator[](key_type&& __k);
1156 _LIBCPP_HIDE_FROM_ABI mapped_type& at(const key_type& __k);
1157 _LIBCPP_HIDE_FROM_ABI const mapped_type& at(const key_type& __k) const;
1159 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return allocator_type(__tree_.__alloc()); }
1160 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp().key_comp(); }
1161 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return value_compare(__tree_.value_comp().key_comp()); }
1163 #ifndef _LIBCPP_CXX03_LANG
1164 template <class... _Args>
1165 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> emplace(_Args&&... __args) {
1166 return __tree_.__emplace_unique(std::forward<_Args>(__args)...);
1169 template <class... _Args>
1170 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
1171 return __tree_.__emplace_hint_unique(__p.__i_, std::forward<_Args>(__args)...);
1174 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1175 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(_Pp&& __p) {
1176 return __tree_.__insert_unique(std::forward<_Pp>(__p));
1179 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1180 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __pos, _Pp&& __p) {
1181 return __tree_.__insert_unique(__pos.__i_, std::forward<_Pp>(__p));
1184 #endif // _LIBCPP_CXX03_LANG
1186 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(const value_type& __v) { return __tree_.__insert_unique(__v); }
1188 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
1189 return __tree_.__insert_unique(__p.__i_, __v);
1192 #ifndef _LIBCPP_CXX03_LANG
1193 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(value_type&& __v) {
1194 return __tree_.__insert_unique(std::move(__v));
1197 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
1198 return __tree_.__insert_unique(__p.__i_, std::move(__v));
1201 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
1204 template <class _InputIterator>
1205 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
1206 for (const_iterator __e = cend(); __f != __l; ++__f)
1207 insert(__e.__i_, *__f);
1210 #if _LIBCPP_STD_VER >= 23
1211 template <_ContainerCompatibleRange<value_type> _Range>
1212 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
1213 const_iterator __end = cend();
1214 for (auto&& __element : __range) {
1215 insert(__end.__i_, std::forward<decltype(__element)>(__element));
1220 #if _LIBCPP_STD_VER >= 17
1222 template <class... _Args>
1223 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> try_emplace(const key_type& __k, _Args&&... __args) {
1224 return __tree_.__emplace_unique_key_args(
1226 std::piecewise_construct,
1227 std::forward_as_tuple(__k),
1228 std::forward_as_tuple(std::forward<_Args>(__args)...));
1231 template <class... _Args>
1232 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> try_emplace(key_type&& __k, _Args&&... __args) {
1233 return __tree_.__emplace_unique_key_args(
1235 std::piecewise_construct,
1236 std::forward_as_tuple(std::move(__k)),
1237 std::forward_as_tuple(std::forward<_Args>(__args)...));
1240 template <class... _Args>
1241 _LIBCPP_HIDE_FROM_ABI iterator try_emplace(const_iterator __h, const key_type& __k, _Args&&... __args) {
1243 .__emplace_hint_unique_key_args(
1246 std::piecewise_construct,
1247 std::forward_as_tuple(__k),
1248 std::forward_as_tuple(std::forward<_Args>(__args)...))
1252 template <class... _Args>
1253 _LIBCPP_HIDE_FROM_ABI iterator try_emplace(const_iterator __h, key_type&& __k, _Args&&... __args) {
1255 .__emplace_hint_unique_key_args(
1258 std::piecewise_construct,
1259 std::forward_as_tuple(std::move(__k)),
1260 std::forward_as_tuple(std::forward<_Args>(__args)...))
1264 template <class _Vp>
1265 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert_or_assign(const key_type& __k, _Vp&& __v) {
1266 iterator __p = lower_bound(__k);
1267 if (__p != end() && !key_comp()(__k, __p->first)) {
1268 __p->second = std::forward<_Vp>(__v);
1269 return std::make_pair(__p, false);
1271 return std::make_pair(emplace_hint(__p, __k, std::forward<_Vp>(__v)), true);
1274 template <class _Vp>
1275 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert_or_assign(key_type&& __k, _Vp&& __v) {
1276 iterator __p = lower_bound(__k);
1277 if (__p != end() && !key_comp()(__k, __p->first)) {
1278 __p->second = std::forward<_Vp>(__v);
1279 return std::make_pair(__p, false);
1281 return std::make_pair(emplace_hint(__p, std::move(__k), std::forward<_Vp>(__v)), true);
1284 template <class _Vp>
1285 _LIBCPP_HIDE_FROM_ABI iterator insert_or_assign(const_iterator __h, const key_type& __k, _Vp&& __v) {
1286 auto [__r, __inserted] = __tree_.__emplace_hint_unique_key_args(__h.__i_, __k, __k, std::forward<_Vp>(__v));
1289 __r->__get_value().second = std::forward<_Vp>(__v);
1294 template <class _Vp>
1295 _LIBCPP_HIDE_FROM_ABI iterator insert_or_assign(const_iterator __h, key_type&& __k, _Vp&& __v) {
1296 auto [__r, __inserted] =
1297 __tree_.__emplace_hint_unique_key_args(__h.__i_, __k, std::move(__k), std::forward<_Vp>(__v));
1300 __r->__get_value().second = std::forward<_Vp>(__v);
1305 #endif // _LIBCPP_STD_VER >= 17
1307 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p.__i_); }
1308 _LIBCPP_HIDE_FROM_ABI iterator erase(iterator __p) { return __tree_.erase(__p.__i_); }
1309 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_unique(__k); }
1310 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) {
1311 return __tree_.erase(__f.__i_, __l.__i_);
1313 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
1315 #if _LIBCPP_STD_VER >= 17
1316 _LIBCPP_HIDE_FROM_ABI insert_return_type insert(node_type&& __nh) {
1317 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1318 "node_type with incompatible allocator passed to map::insert()");
1319 return __tree_.template __node_handle_insert_unique< node_type, insert_return_type>(std::move(__nh));
1321 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
1322 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1323 "node_type with incompatible allocator passed to map::insert()");
1324 return __tree_.template __node_handle_insert_unique<node_type>(__hint.__i_, std::move(__nh));
1326 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
1327 return __tree_.template __node_handle_extract<node_type>(__key);
1329 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
1330 return __tree_.template __node_handle_extract<node_type>(__it.__i_);
1332 template <class _Compare2>
1333 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1334 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1335 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1336 __tree_.__node_handle_merge_unique(__source.__tree_);
1338 template <class _Compare2>
1339 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1340 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1341 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1342 __tree_.__node_handle_merge_unique(__source.__tree_);
1344 template <class _Compare2>
1345 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1346 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1347 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1348 __tree_.__node_handle_merge_unique(__source.__tree_);
1350 template <class _Compare2>
1351 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1352 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1353 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1354 __tree_.__node_handle_merge_unique(__source.__tree_);
1358 _LIBCPP_HIDE_FROM_ABI void swap(map& __m) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) { __tree_.swap(__m.__tree_); }
1360 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
1361 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
1362 #if _LIBCPP_STD_VER >= 14
1363 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1364 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
1365 return __tree_.find(__k);
1367 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1368 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
1369 return __tree_.find(__k);
1373 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_unique(__k); }
1374 #if _LIBCPP_STD_VER >= 14
1375 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1376 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
1377 return __tree_.__count_multi(__k);
1381 #if _LIBCPP_STD_VER >= 20
1382 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
1383 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1384 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
1385 return find(__k) != end();
1387 #endif // _LIBCPP_STD_VER >= 20
1389 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
1390 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
1391 #if _LIBCPP_STD_VER >= 14
1392 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1393 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
1394 return __tree_.lower_bound(__k);
1397 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1398 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
1399 return __tree_.lower_bound(__k);
1403 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
1404 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
1405 #if _LIBCPP_STD_VER >= 14
1406 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1407 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
1408 return __tree_.upper_bound(__k);
1410 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1411 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
1412 return __tree_.upper_bound(__k);
1416 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
1417 return __tree_.__equal_range_unique(__k);
1419 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
1420 return __tree_.__equal_range_unique(__k);
1422 #if _LIBCPP_STD_VER >= 14
1423 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1424 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
1425 return __tree_.__equal_range_multi(__k);
1427 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1428 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
1429 return __tree_.__equal_range_multi(__k);
1434 typedef typename __base::__node __node;
1435 typedef typename __base::__node_allocator __node_allocator;
1436 typedef typename __base::__node_pointer __node_pointer;
1437 typedef typename __base::__node_base_pointer __node_base_pointer;
1438 typedef typename __base::__parent_pointer __parent_pointer;
1440 typedef __map_node_destructor<__node_allocator> _Dp;
1441 typedef unique_ptr<__node, _Dp> __node_holder;
1443 #ifdef _LIBCPP_CXX03_LANG
1444 _LIBCPP_HIDE_FROM_ABI __node_holder __construct_node_with_key(const key_type& __k);
1448 #if _LIBCPP_STD_VER >= 17
1449 template <class _InputIterator,
1450 class _Compare = less<__iter_key_type<_InputIterator>>,
1451 class _Allocator = allocator<__iter_to_alloc_type<_InputIterator>>,
1452 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1453 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1454 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1455 map(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
1456 -> map<__iter_key_type<_InputIterator>, __iter_mapped_type<_InputIterator>, _Compare, _Allocator>;
1458 # if _LIBCPP_STD_VER >= 23
1459 template <ranges::input_range _Range,
1460 class _Compare = less<__range_key_type<_Range>>,
1461 class _Allocator = allocator<__range_to_alloc_type<_Range>>,
1462 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1463 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1464 map(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
1465 -> map<__range_key_type<_Range>, __range_mapped_type<_Range>, _Compare, _Allocator>;
1468 template <class _Key,
1470 class _Compare = less<remove_const_t<_Key>>,
1471 class _Allocator = allocator<pair<const _Key, _Tp>>,
1472 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
1473 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1474 map(initializer_list<pair<_Key, _Tp>>,
1475 _Compare = _Compare(),
1476 _Allocator = _Allocator()) -> map<remove_const_t<_Key>, _Tp, _Compare, _Allocator>;
1478 template <class _InputIterator,
1480 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1481 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1482 map(_InputIterator, _InputIterator, _Allocator)
1483 -> map<__iter_key_type<_InputIterator>,
1484 __iter_mapped_type<_InputIterator>,
1485 less<__iter_key_type<_InputIterator>>,
1488 # if _LIBCPP_STD_VER >= 23
1489 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1490 map(from_range_t, _Range&&, _Allocator)
1491 -> map<__range_key_type<_Range>, __range_mapped_type<_Range>, less<__range_key_type<_Range>>, _Allocator>;
1494 template <class _Key, class _Tp, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1495 map(initializer_list<pair<_Key, _Tp>>,
1496 _Allocator) -> map<remove_const_t<_Key>, _Tp, less<remove_const_t<_Key>>, _Allocator>;
1499 #ifndef _LIBCPP_CXX03_LANG
1500 template <class _Key, class _Tp, class _Compare, class _Allocator>
1501 map<_Key, _Tp, _Compare, _Allocator>::map(map&& __m, const allocator_type& __a)
1502 : __tree_(std::move(__m.__tree_), typename __base::allocator_type(__a)) {
1503 if (__a != __m.get_allocator()) {
1504 const_iterator __e = cend();
1505 while (!__m.empty())
1506 __tree_.__insert_unique(__e.__i_, __m.__tree_.remove(__m.begin().__i_)->__value_.__move());
1510 template <class _Key, class _Tp, class _Compare, class _Allocator>
1511 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](const key_type& __k) {
1513 .__emplace_unique_key_args(__k, std::piecewise_construct, std::forward_as_tuple(__k), std::forward_as_tuple())
1514 .first->__get_value()
1518 template <class _Key, class _Tp, class _Compare, class _Allocator>
1519 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](key_type&& __k) {
1520 // TODO investigate this clang-tidy warning.
1521 // NOLINTBEGIN(bugprone-use-after-move)
1523 .__emplace_unique_key_args(
1524 __k, std::piecewise_construct, std::forward_as_tuple(std::move(__k)), std::forward_as_tuple())
1525 .first->__get_value()
1527 // NOLINTEND(bugprone-use-after-move)
1530 #else // _LIBCPP_CXX03_LANG
1532 template <class _Key, class _Tp, class _Compare, class _Allocator>
1533 typename map<_Key, _Tp, _Compare, _Allocator>::__node_holder
1534 map<_Key, _Tp, _Compare, _Allocator>::__construct_node_with_key(const key_type& __k) {
1535 __node_allocator& __na = __tree_.__node_alloc();
1536 __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na));
1537 __node_traits::construct(__na, std::addressof(__h->__value_.__get_value().first), __k);
1538 __h.get_deleter().__first_constructed = true;
1539 __node_traits::construct(__na, std::addressof(__h->__value_.__get_value().second));
1540 __h.get_deleter().__second_constructed = true;
1544 template <class _Key, class _Tp, class _Compare, class _Allocator>
1545 _Tp& map<_Key, _Tp, _Compare, _Allocator>::operator[](const key_type& __k) {
1546 __parent_pointer __parent;
1547 __node_base_pointer& __child = __tree_.__find_equal(__parent, __k);
1548 __node_pointer __r = static_cast<__node_pointer>(__child);
1549 if (__child == nullptr) {
1550 __node_holder __h = __construct_node_with_key(__k);
1551 __tree_.__insert_node_at(__parent, __child, static_cast<__node_base_pointer>(__h.get()));
1552 __r = __h.release();
1554 return __r->__value_.__get_value().second;
1557 #endif // _LIBCPP_CXX03_LANG
1559 template <class _Key, class _Tp, class _Compare, class _Allocator>
1560 _Tp& map<_Key, _Tp, _Compare, _Allocator>::at(const key_type& __k) {
1561 __parent_pointer __parent;
1562 __node_base_pointer& __child = __tree_.__find_equal(__parent, __k);
1563 if (__child == nullptr)
1564 __throw_out_of_range("map::at: key not found");
1565 return static_cast<__node_pointer>(__child)->__value_.__get_value().second;
1568 template <class _Key, class _Tp, class _Compare, class _Allocator>
1569 const _Tp& map<_Key, _Tp, _Compare, _Allocator>::at(const key_type& __k) const {
1570 __parent_pointer __parent;
1571 __node_base_pointer __child = __tree_.__find_equal(__parent, __k);
1572 if (__child == nullptr)
1573 __throw_out_of_range("map::at: key not found");
1574 return static_cast<__node_pointer>(__child)->__value_.__get_value().second;
1577 template <class _Key, class _Tp, class _Compare, class _Allocator>
1578 inline _LIBCPP_HIDE_FROM_ABI bool
1579 operator==(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1580 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
1583 #if _LIBCPP_STD_VER <= 17
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 std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
1591 template <class _Key, class _Tp, class _Compare, class _Allocator>
1592 inline _LIBCPP_HIDE_FROM_ABI bool
1593 operator!=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1594 return !(__x == __y);
1597 template <class _Key, class _Tp, class _Compare, class _Allocator>
1598 inline _LIBCPP_HIDE_FROM_ABI bool
1599 operator>(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1603 template <class _Key, class _Tp, class _Compare, class _Allocator>
1604 inline _LIBCPP_HIDE_FROM_ABI bool
1605 operator>=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1606 return !(__x < __y);
1609 template <class _Key, class _Tp, class _Compare, class _Allocator>
1610 inline _LIBCPP_HIDE_FROM_ABI bool
1611 operator<=(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1612 return !(__y < __x);
1615 #else // #if _LIBCPP_STD_VER <= 17
1617 template <class _Key, class _Tp, class _Compare, class _Allocator>
1618 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<pair<const _Key, _Tp>>
1619 operator<=>(const map<_Key, _Tp, _Compare, _Allocator>& __x, const map<_Key, _Tp, _Compare, _Allocator>& __y) {
1620 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), std::__synth_three_way);
1623 #endif // #if _LIBCPP_STD_VER <= 17
1625 template <class _Key, class _Tp, class _Compare, class _Allocator>
1626 inline _LIBCPP_HIDE_FROM_ABI void
1627 swap(map<_Key, _Tp, _Compare, _Allocator>& __x, map<_Key, _Tp, _Compare, _Allocator>& __y)
1628 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
1632 #if _LIBCPP_STD_VER >= 20
1633 template <class _Key, class _Tp, class _Compare, class _Allocator, class _Predicate>
1634 inline _LIBCPP_HIDE_FROM_ABI typename map<_Key, _Tp, _Compare, _Allocator>::size_type
1635 erase_if(map<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred) {
1636 return std::__libcpp_erase_if_container(__c, __pred);
1640 template <class _Key, class _Tp, class _Compare = less<_Key>, class _Allocator = allocator<pair<const _Key, _Tp> > >
1641 class _LIBCPP_TEMPLATE_VIS multimap {
1644 typedef _Key key_type;
1645 typedef _Tp mapped_type;
1646 typedef pair<const key_type, mapped_type> value_type;
1647 typedef __type_identity_t<_Compare> key_compare;
1648 typedef __type_identity_t<_Allocator> allocator_type;
1649 typedef value_type& reference;
1650 typedef const value_type& const_reference;
1652 static_assert(__check_valid_allocator<allocator_type>::value, "");
1653 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
1654 "Allocator::value_type must be same type as value_type");
1656 class _LIBCPP_TEMPLATE_VIS value_compare : public __binary_function<value_type, value_type, bool> {
1657 friend class multimap;
1662 _LIBCPP_HIDE_FROM_ABI value_compare(key_compare __c) : comp(__c) {}
1665 _LIBCPP_HIDE_FROM_ABI bool operator()(const value_type& __x, const value_type& __y) const {
1666 return comp(__x.first, __y.first);
1671 typedef std::__value_type<key_type, mapped_type> __value_type;
1672 typedef __map_value_compare<key_type, __value_type, key_compare> __vc;
1673 typedef __rebind_alloc<allocator_traits<allocator_type>, __value_type> __allocator_type;
1674 typedef __tree<__value_type, __vc, __allocator_type> __base;
1675 typedef typename __base::__node_traits __node_traits;
1676 typedef allocator_traits<allocator_type> __alloc_traits;
1681 typedef typename __alloc_traits::pointer pointer;
1682 typedef typename __alloc_traits::const_pointer const_pointer;
1683 typedef typename __alloc_traits::size_type size_type;
1684 typedef typename __alloc_traits::difference_type difference_type;
1685 typedef __map_iterator<typename __base::iterator> iterator;
1686 typedef __map_const_iterator<typename __base::const_iterator> const_iterator;
1687 typedef std::reverse_iterator<iterator> reverse_iterator;
1688 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
1690 #if _LIBCPP_STD_VER >= 17
1691 typedef __map_node_handle<typename __base::__node, allocator_type> node_type;
1694 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1695 friend class _LIBCPP_TEMPLATE_VIS map;
1696 template <class _Key2, class _Value2, class _Comp2, class _Alloc2>
1697 friend class _LIBCPP_TEMPLATE_VIS multimap;
1699 _LIBCPP_HIDE_FROM_ABI multimap() _NOEXCEPT_(
1700 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
1701 is_nothrow_copy_constructible<key_compare>::value)
1702 : __tree_(__vc(key_compare())) {}
1704 _LIBCPP_HIDE_FROM_ABI explicit multimap(const key_compare& __comp) _NOEXCEPT_(
1705 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
1706 : __tree_(__vc(__comp)) {}
1708 _LIBCPP_HIDE_FROM_ABI explicit multimap(const key_compare& __comp, const allocator_type& __a)
1709 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {}
1711 template <class _InputIterator>
1712 _LIBCPP_HIDE_FROM_ABI multimap(_InputIterator __f, _InputIterator __l, const key_compare& __comp = key_compare())
1713 : __tree_(__vc(__comp)) {
1717 template <class _InputIterator>
1718 _LIBCPP_HIDE_FROM_ABI
1719 multimap(_InputIterator __f, _InputIterator __l, const key_compare& __comp, const allocator_type& __a)
1720 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1724 #if _LIBCPP_STD_VER >= 23
1725 template <_ContainerCompatibleRange<value_type> _Range>
1726 _LIBCPP_HIDE_FROM_ABI
1727 multimap(from_range_t,
1729 const key_compare& __comp = key_compare(),
1730 const allocator_type& __a = allocator_type())
1731 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1732 insert_range(std::forward<_Range>(__range));
1736 #if _LIBCPP_STD_VER >= 14
1737 template <class _InputIterator>
1738 _LIBCPP_HIDE_FROM_ABI multimap(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1739 : multimap(__f, __l, key_compare(), __a) {}
1742 #if _LIBCPP_STD_VER >= 23
1743 template <_ContainerCompatibleRange<value_type> _Range>
1744 _LIBCPP_HIDE_FROM_ABI multimap(from_range_t, _Range&& __range, const allocator_type& __a)
1745 : multimap(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
1748 _LIBCPP_HIDE_FROM_ABI multimap(const multimap& __m)
1749 : __tree_(__m.__tree_.value_comp(),
1750 __alloc_traits::select_on_container_copy_construction(__m.__tree_.__alloc())) {
1751 insert(__m.begin(), __m.end());
1754 _LIBCPP_HIDE_FROM_ABI multimap& operator=(const multimap& __m) {
1755 #ifndef _LIBCPP_CXX03_LANG
1756 __tree_ = __m.__tree_;
1758 if (this != std::addressof(__m)) {
1760 __tree_.value_comp() = __m.__tree_.value_comp();
1761 __tree_.__copy_assign_alloc(__m.__tree_);
1762 insert(__m.begin(), __m.end());
1768 #ifndef _LIBCPP_CXX03_LANG
1770 _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m) noexcept(is_nothrow_move_constructible<__base>::value)
1771 : __tree_(std::move(__m.__tree_)) {}
1773 _LIBCPP_HIDE_FROM_ABI multimap(multimap&& __m, const allocator_type& __a);
1775 _LIBCPP_HIDE_FROM_ABI multimap& operator=(multimap&& __m) noexcept(is_nothrow_move_assignable<__base>::value) {
1776 __tree_ = std::move(__m.__tree_);
1780 _LIBCPP_HIDE_FROM_ABI multimap(initializer_list<value_type> __il, const key_compare& __comp = key_compare())
1781 : __tree_(__vc(__comp)) {
1782 insert(__il.begin(), __il.end());
1785 _LIBCPP_HIDE_FROM_ABI
1786 multimap(initializer_list<value_type> __il, const key_compare& __comp, const allocator_type& __a)
1787 : __tree_(__vc(__comp), typename __base::allocator_type(__a)) {
1788 insert(__il.begin(), __il.end());
1791 # if _LIBCPP_STD_VER >= 14
1792 _LIBCPP_HIDE_FROM_ABI multimap(initializer_list<value_type> __il, const allocator_type& __a)
1793 : multimap(__il, key_compare(), __a) {}
1796 _LIBCPP_HIDE_FROM_ABI multimap& operator=(initializer_list<value_type> __il) {
1797 __tree_.__assign_multi(__il.begin(), __il.end());
1801 #endif // _LIBCPP_CXX03_LANG
1803 _LIBCPP_HIDE_FROM_ABI explicit multimap(const allocator_type& __a) : __tree_(typename __base::allocator_type(__a)) {}
1805 _LIBCPP_HIDE_FROM_ABI multimap(const multimap& __m, const allocator_type& __a)
1806 : __tree_(__m.__tree_.value_comp(), typename __base::allocator_type(__a)) {
1807 insert(__m.begin(), __m.end());
1810 _LIBCPP_HIDE_FROM_ABI ~multimap() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
1812 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
1813 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
1814 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
1815 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
1817 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
1818 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
1819 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
1820 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
1822 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
1823 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
1824 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
1825 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
1827 _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
1828 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
1829 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
1831 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return allocator_type(__tree_.__alloc()); }
1832 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp().key_comp(); }
1833 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return value_compare(__tree_.value_comp().key_comp()); }
1835 #ifndef _LIBCPP_CXX03_LANG
1837 template <class... _Args>
1838 _LIBCPP_HIDE_FROM_ABI iterator emplace(_Args&&... __args) {
1839 return __tree_.__emplace_multi(std::forward<_Args>(__args)...);
1842 template <class... _Args>
1843 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
1844 return __tree_.__emplace_hint_multi(__p.__i_, std::forward<_Args>(__args)...);
1847 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1848 _LIBCPP_HIDE_FROM_ABI iterator insert(_Pp&& __p) {
1849 return __tree_.__insert_multi(std::forward<_Pp>(__p));
1852 template <class _Pp, __enable_if_t<is_constructible<value_type, _Pp>::value, int> = 0>
1853 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __pos, _Pp&& __p) {
1854 return __tree_.__insert_multi(__pos.__i_, std::forward<_Pp>(__p));
1857 _LIBCPP_HIDE_FROM_ABI iterator insert(value_type&& __v) { return __tree_.__insert_multi(std::move(__v)); }
1859 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
1860 return __tree_.__insert_multi(__p.__i_, std::move(__v));
1863 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
1865 #endif // _LIBCPP_CXX03_LANG
1867 _LIBCPP_HIDE_FROM_ABI iterator insert(const value_type& __v) { return __tree_.__insert_multi(__v); }
1869 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
1870 return __tree_.__insert_multi(__p.__i_, __v);
1873 template <class _InputIterator>
1874 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
1875 for (const_iterator __e = cend(); __f != __l; ++__f)
1876 __tree_.__insert_multi(__e.__i_, *__f);
1879 #if _LIBCPP_STD_VER >= 23
1880 template <_ContainerCompatibleRange<value_type> _Range>
1881 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
1882 const_iterator __end = cend();
1883 for (auto&& __element : __range) {
1884 __tree_.__insert_multi(__end.__i_, std::forward<decltype(__element)>(__element));
1889 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p.__i_); }
1890 _LIBCPP_HIDE_FROM_ABI iterator erase(iterator __p) { return __tree_.erase(__p.__i_); }
1891 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_multi(__k); }
1892 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) {
1893 return __tree_.erase(__f.__i_, __l.__i_);
1896 #if _LIBCPP_STD_VER >= 17
1897 _LIBCPP_HIDE_FROM_ABI iterator insert(node_type&& __nh) {
1898 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1899 "node_type with incompatible allocator passed to multimap::insert()");
1900 return __tree_.template __node_handle_insert_multi<node_type>(std::move(__nh));
1902 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
1903 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1904 "node_type with incompatible allocator passed to multimap::insert()");
1905 return __tree_.template __node_handle_insert_multi<node_type>(__hint.__i_, std::move(__nh));
1907 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
1908 return __tree_.template __node_handle_extract<node_type>(__key);
1910 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
1911 return __tree_.template __node_handle_extract<node_type>(__it.__i_);
1913 template <class _Compare2>
1914 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1915 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1916 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1917 return __tree_.__node_handle_merge_multi(__source.__tree_);
1919 template <class _Compare2>
1920 _LIBCPP_HIDE_FROM_ABI void merge(multimap<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1921 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1922 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1923 return __tree_.__node_handle_merge_multi(__source.__tree_);
1925 template <class _Compare2>
1926 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>& __source) {
1927 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1928 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1929 return __tree_.__node_handle_merge_multi(__source.__tree_);
1931 template <class _Compare2>
1932 _LIBCPP_HIDE_FROM_ABI void merge(map<key_type, mapped_type, _Compare2, allocator_type>&& __source) {
1933 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1934 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1935 return __tree_.__node_handle_merge_multi(__source.__tree_);
1939 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
1941 _LIBCPP_HIDE_FROM_ABI void swap(multimap& __m) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) {
1942 __tree_.swap(__m.__tree_);
1945 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
1946 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
1947 #if _LIBCPP_STD_VER >= 14
1948 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1949 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
1950 return __tree_.find(__k);
1952 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1953 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
1954 return __tree_.find(__k);
1958 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_multi(__k); }
1959 #if _LIBCPP_STD_VER >= 14
1960 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1961 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
1962 return __tree_.__count_multi(__k);
1966 #if _LIBCPP_STD_VER >= 20
1967 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
1968 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1969 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
1970 return find(__k) != end();
1972 #endif // _LIBCPP_STD_VER >= 20
1974 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
1975 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
1976 #if _LIBCPP_STD_VER >= 14
1977 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1978 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
1979 return __tree_.lower_bound(__k);
1982 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1983 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
1984 return __tree_.lower_bound(__k);
1988 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
1989 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
1990 #if _LIBCPP_STD_VER >= 14
1991 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1992 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
1993 return __tree_.upper_bound(__k);
1995 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1996 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
1997 return __tree_.upper_bound(__k);
2001 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
2002 return __tree_.__equal_range_multi(__k);
2004 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
2005 return __tree_.__equal_range_multi(__k);
2007 #if _LIBCPP_STD_VER >= 14
2008 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2009 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
2010 return __tree_.__equal_range_multi(__k);
2012 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
2013 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
2014 return __tree_.__equal_range_multi(__k);
2019 typedef typename __base::__node __node;
2020 typedef typename __base::__node_allocator __node_allocator;
2021 typedef typename __base::__node_pointer __node_pointer;
2023 typedef __map_node_destructor<__node_allocator> _Dp;
2024 typedef unique_ptr<__node, _Dp> __node_holder;
2027 #if _LIBCPP_STD_VER >= 17
2028 template <class _InputIterator,
2029 class _Compare = less<__iter_key_type<_InputIterator>>,
2030 class _Allocator = allocator<__iter_to_alloc_type<_InputIterator>>,
2031 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
2032 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2033 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2034 multimap(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
2035 -> multimap<__iter_key_type<_InputIterator>, __iter_mapped_type<_InputIterator>, _Compare, _Allocator>;
2037 # if _LIBCPP_STD_VER >= 23
2038 template <ranges::input_range _Range,
2039 class _Compare = less<__range_key_type<_Range>>,
2040 class _Allocator = allocator<__range_to_alloc_type<_Range>>,
2041 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2042 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2043 multimap(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
2044 -> multimap<__range_key_type<_Range>, __range_mapped_type<_Range>, _Compare, _Allocator>;
2047 template <class _Key,
2049 class _Compare = less<remove_const_t<_Key>>,
2050 class _Allocator = allocator<pair<const _Key, _Tp>>,
2051 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
2052 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2053 multimap(initializer_list<pair<_Key, _Tp>>,
2054 _Compare = _Compare(),
2055 _Allocator = _Allocator()) -> multimap<remove_const_t<_Key>, _Tp, _Compare, _Allocator>;
2057 template <class _InputIterator,
2059 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
2060 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2061 multimap(_InputIterator, _InputIterator, _Allocator)
2062 -> multimap<__iter_key_type<_InputIterator>,
2063 __iter_mapped_type<_InputIterator>,
2064 less<__iter_key_type<_InputIterator>>,
2067 # if _LIBCPP_STD_VER >= 23
2068 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2069 multimap(from_range_t, _Range&&, _Allocator)
2070 -> multimap<__range_key_type<_Range>, __range_mapped_type<_Range>, less<__range_key_type<_Range>>, _Allocator>;
2073 template <class _Key, class _Tp, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
2074 multimap(initializer_list<pair<_Key, _Tp>>,
2075 _Allocator) -> multimap<remove_const_t<_Key>, _Tp, less<remove_const_t<_Key>>, _Allocator>;
2078 #ifndef _LIBCPP_CXX03_LANG
2079 template <class _Key, class _Tp, class _Compare, class _Allocator>
2080 multimap<_Key, _Tp, _Compare, _Allocator>::multimap(multimap&& __m, const allocator_type& __a)
2081 : __tree_(std::move(__m.__tree_), typename __base::allocator_type(__a)) {
2082 if (__a != __m.get_allocator()) {
2083 const_iterator __e = cend();
2084 while (!__m.empty())
2085 __tree_.__insert_multi(__e.__i_, std::move(__m.__tree_.remove(__m.begin().__i_)->__value_.__move()));
2090 template <class _Key, class _Tp, class _Compare, class _Allocator>
2091 inline _LIBCPP_HIDE_FROM_ABI bool
2092 operator==(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2093 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
2096 #if _LIBCPP_STD_VER <= 17
2098 template <class _Key, class _Tp, class _Compare, class _Allocator>
2099 inline _LIBCPP_HIDE_FROM_ABI bool
2100 operator<(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2101 return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
2104 template <class _Key, class _Tp, class _Compare, class _Allocator>
2105 inline _LIBCPP_HIDE_FROM_ABI bool
2106 operator!=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2107 return !(__x == __y);
2110 template <class _Key, class _Tp, class _Compare, class _Allocator>
2111 inline _LIBCPP_HIDE_FROM_ABI bool
2112 operator>(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2116 template <class _Key, class _Tp, class _Compare, class _Allocator>
2117 inline _LIBCPP_HIDE_FROM_ABI bool
2118 operator>=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2119 return !(__x < __y);
2122 template <class _Key, class _Tp, class _Compare, class _Allocator>
2123 inline _LIBCPP_HIDE_FROM_ABI bool
2124 operator<=(const multimap<_Key, _Tp, _Compare, _Allocator>& __x, const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2125 return !(__y < __x);
2128 #else // #if _LIBCPP_STD_VER <= 17
2130 template <class _Key, class _Tp, class _Compare, class _Allocator>
2131 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<pair<const _Key, _Tp>>
2132 operator<=>(const multimap<_Key, _Tp, _Compare, _Allocator>& __x,
2133 const multimap<_Key, _Tp, _Compare, _Allocator>& __y) {
2134 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), __synth_three_way);
2137 #endif // #if _LIBCPP_STD_VER <= 17
2139 template <class _Key, class _Tp, class _Compare, class _Allocator>
2140 inline _LIBCPP_HIDE_FROM_ABI void
2141 swap(multimap<_Key, _Tp, _Compare, _Allocator>& __x, multimap<_Key, _Tp, _Compare, _Allocator>& __y)
2142 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
2146 #if _LIBCPP_STD_VER >= 20
2147 template <class _Key, class _Tp, class _Compare, class _Allocator, class _Predicate>
2148 inline _LIBCPP_HIDE_FROM_ABI typename multimap<_Key, _Tp, _Compare, _Allocator>::size_type
2149 erase_if(multimap<_Key, _Tp, _Compare, _Allocator>& __c, _Predicate __pred) {
2150 return std::__libcpp_erase_if_container(__c, __pred);
2154 _LIBCPP_END_NAMESPACE_STD
2156 #if _LIBCPP_STD_VER >= 17
2157 _LIBCPP_BEGIN_NAMESPACE_STD
2159 template <class _KeyT, class _ValueT, class _CompareT = std::less<_KeyT>>
2160 using map _LIBCPP_AVAILABILITY_PMR =
2161 std::map<_KeyT, _ValueT, _CompareT, polymorphic_allocator<std::pair<const _KeyT, _ValueT>>>;
2163 template <class _KeyT, class _ValueT, class _CompareT = std::less<_KeyT>>
2164 using multimap _LIBCPP_AVAILABILITY_PMR =
2165 std::multimap<_KeyT, _ValueT, _CompareT, polymorphic_allocator<std::pair<const _KeyT, _ValueT>>>;
2167 _LIBCPP_END_NAMESPACE_STD
2172 #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
2173 # include <__cxx03/concepts>
2174 # include <__cxx03/cstdlib>
2175 # include <__cxx03/functional>
2176 # include <__cxx03/iterator>
2177 # include <__cxx03/type_traits>
2178 # include <__cxx03/utility>
2181 #endif // _LIBCPP_MAP