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 Compare = less<Key>,
21 class Allocator = allocator<Key>>
27 typedef key_type value_type;
28 typedef Compare key_compare;
29 typedef key_compare value_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::size_type size_type;
34 typedef typename allocator_type::difference_type difference_type;
35 typedef typename allocator_type::pointer pointer;
36 typedef typename allocator_type::const_pointer const_pointer;
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
45 // construct/copy/destroy:
48 is_nothrow_default_constructible<allocator_type>::value &&
49 is_nothrow_default_constructible<key_compare>::value &&
50 is_nothrow_copy_constructible<key_compare>::value);
51 explicit set(const value_compare& comp);
52 set(const value_compare& comp, const allocator_type& a);
53 template <class InputIterator>
54 set(InputIterator first, InputIterator last,
55 const value_compare& comp = value_compare());
56 template <class InputIterator>
57 set(InputIterator first, InputIterator last, const value_compare& comp,
58 const allocator_type& a);
59 template<container-compatible-range<value_type> R>
60 set(from_range_t, R&& rg, const Compare& comp = Compare(), const Allocator& = Allocator()); // C++23
64 is_nothrow_move_constructible<allocator_type>::value &&
65 is_nothrow_move_constructible<key_compare>::value);
66 explicit set(const allocator_type& a);
67 set(const set& s, const allocator_type& a);
68 set(set&& s, const allocator_type& a);
69 set(initializer_list<value_type> il, const value_compare& comp = value_compare());
70 set(initializer_list<value_type> il, const value_compare& comp,
71 const allocator_type& a);
72 template <class InputIterator>
73 set(InputIterator first, InputIterator last, const allocator_type& a)
74 : set(first, last, Compare(), a) {} // C++14
75 template<container-compatible-range<value_type> R>
76 set(from_range_t, R&& rg, const Allocator& a))
77 : set(from_range, std::forward<R>(rg), Compare(), a) { } // C++23
78 set(initializer_list<value_type> il, const allocator_type& a)
79 : set(il, Compare(), a) {} // C++14
82 set& operator=(const set& s);
83 set& operator=(set&& s)
85 allocator_type::propagate_on_container_move_assignment::value &&
86 is_nothrow_move_assignable<allocator_type>::value &&
87 is_nothrow_move_assignable<key_compare>::value);
88 set& operator=(initializer_list<value_type> il);
91 iterator begin() noexcept;
92 const_iterator begin() const noexcept;
93 iterator end() noexcept;
94 const_iterator end() const noexcept;
96 reverse_iterator rbegin() noexcept;
97 const_reverse_iterator rbegin() const noexcept;
98 reverse_iterator rend() noexcept;
99 const_reverse_iterator rend() const noexcept;
101 const_iterator cbegin() const noexcept;
102 const_iterator cend() const noexcept;
103 const_reverse_iterator crbegin() const noexcept;
104 const_reverse_iterator crend() const noexcept;
107 bool empty() const noexcept;
108 size_type size() const noexcept;
109 size_type max_size() const noexcept;
112 template <class... Args>
113 pair<iterator, bool> emplace(Args&&... args);
114 template <class... Args>
115 iterator emplace_hint(const_iterator position, Args&&... args);
116 pair<iterator,bool> insert(const value_type& v);
117 pair<iterator,bool> insert(value_type&& v);
118 iterator insert(const_iterator position, const value_type& v);
119 iterator insert(const_iterator position, value_type&& v);
120 template <class InputIterator>
121 void insert(InputIterator first, InputIterator last);
122 template<container-compatible-range<value_type> R>
123 void insert_range(R&& rg); // C++23
124 void insert(initializer_list<value_type> il);
126 node_type extract(const_iterator position); // C++17
127 node_type extract(const key_type& x); // C++17
128 insert_return_type insert(node_type&& nh); // C++17
129 iterator insert(const_iterator hint, node_type&& nh); // C++17
131 iterator erase(const_iterator position);
132 iterator erase(iterator position); // C++14
133 size_type erase(const key_type& k);
134 iterator erase(const_iterator first, const_iterator last);
135 void clear() noexcept;
138 void merge(set<Key, C2, Allocator>& source); // C++17
140 void merge(set<Key, C2, Allocator>&& source); // C++17
142 void merge(multiset<Key, C2, Allocator>& source); // C++17
144 void merge(multiset<Key, C2, Allocator>&& source); // C++17
148 __is_nothrow_swappable<key_compare>::value &&
149 (!allocator_type::propagate_on_container_swap::value ||
150 __is_nothrow_swappable<allocator_type>::value));
153 allocator_type get_allocator() const noexcept;
154 key_compare key_comp() const;
155 value_compare value_comp() const;
158 iterator find(const key_type& k);
159 const_iterator find(const key_type& k) const;
161 iterator find(const K& x);
163 const_iterator find(const K& x) const; // C++14
166 size_type count(const K& x) const; // C++14
167 size_type count(const key_type& k) const;
169 bool contains(const key_type& x) const; // C++20
170 template<class K> bool contains(const K& x) const; // C++20
172 iterator lower_bound(const key_type& k);
173 const_iterator lower_bound(const key_type& k) const;
175 iterator lower_bound(const K& x); // C++14
177 const_iterator lower_bound(const K& x) const; // C++14
179 iterator upper_bound(const key_type& k);
180 const_iterator upper_bound(const key_type& k) const;
182 iterator upper_bound(const K& x); // C++14
184 const_iterator upper_bound(const K& x) const; // C++14
185 pair<iterator,iterator> equal_range(const key_type& k);
186 pair<const_iterator,const_iterator> equal_range(const key_type& k) const;
188 pair<iterator,iterator> equal_range(const K& x); // C++14
190 pair<const_iterator,const_iterator> equal_range(const K& x) const; // C++14
193 template <class InputIterator,
194 class Compare = less<typename iterator_traits<InputIterator>::value_type>,
195 class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
196 set(InputIterator, InputIterator,
197 Compare = Compare(), Allocator = Allocator())
198 -> set<typename iterator_traits<InputIterator>::value_type, Compare, Allocator>; // C++17
200 template<ranges::input_range R, class Compare = less<ranges::range_value_t<R>>,
201 class Allocator = allocator<ranges::range_value_t<R>>>
202 set(from_range_t, R&&, Compare = Compare(), Allocator = Allocator())
203 -> set<ranges::range_value_t<R>, Compare, Allocator>; // C++23
205 template<class Key, class Compare = less<Key>, class Allocator = allocator<Key>>
206 set(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
207 -> set<Key, Compare, Allocator>; // C++17
209 template<class InputIterator, class Allocator>
210 set(InputIterator, InputIterator, Allocator)
211 -> set<typename iterator_traits<InputIterator>::value_type,
212 less<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17
214 template<ranges::input_range R, class Allocator>
215 set(from_range_t, R&&, Allocator)
216 -> set<ranges::range_value_t<R>, less<ranges::range_value_t<R>>, Allocator>; // C++23
218 template<class Key, class Allocator>
219 set(initializer_list<Key>, Allocator) -> set<Key, less<Key>, Allocator>; // C++17
221 template <class Key, class Compare, class Allocator>
223 operator==(const set<Key, Compare, Allocator>& x,
224 const set<Key, Compare, Allocator>& y);
226 template <class Key, class Compare, class Allocator>
228 operator< (const set<Key, Compare, Allocator>& x,
229 const set<Key, Compare, Allocator>& y); // removed in C++20
231 template <class Key, class Compare, class Allocator>
233 operator!=(const set<Key, Compare, Allocator>& x,
234 const set<Key, Compare, Allocator>& y); // removed in C++20
236 template <class Key, class Compare, class Allocator>
238 operator> (const set<Key, Compare, Allocator>& x,
239 const set<Key, Compare, Allocator>& y); // removed in C++20
241 template <class Key, class Compare, class Allocator>
243 operator>=(const set<Key, Compare, Allocator>& x,
244 const set<Key, Compare, Allocator>& y); // removed in C++20
246 template <class Key, class Compare, class Allocator>
248 operator<=(const set<Key, Compare, Allocator>& x,
249 const set<Key, Compare, Allocator>& y); // removed in C++20
251 template<class Key, class Compare, class Allocator>
252 synth-three-way-result<Key> operator<=>(const set<Key, Compare, Allocator>& x,
253 const set<Key, Compare, Allocator>& y); // since C++20
255 // specialized algorithms:
256 template <class Key, class Compare, class Allocator>
258 swap(set<Key, Compare, Allocator>& x, set<Key, Compare, Allocator>& y)
259 noexcept(noexcept(x.swap(y)));
261 template <class Key, class Compare, class Allocator, class Predicate>
262 typename set<Key, Compare, Allocator>::size_type
263 erase_if(set<Key, Compare, Allocator>& c, Predicate pred); // C++20
265 template <class Key, class Compare = less<Key>,
266 class Allocator = allocator<Key>>
271 typedef Key key_type;
272 typedef key_type value_type;
273 typedef Compare key_compare;
274 typedef key_compare value_compare;
275 typedef Allocator allocator_type;
276 typedef typename allocator_type::reference reference;
277 typedef typename allocator_type::const_reference const_reference;
278 typedef typename allocator_type::size_type size_type;
279 typedef typename allocator_type::difference_type difference_type;
280 typedef typename allocator_type::pointer pointer;
281 typedef typename allocator_type::const_pointer const_pointer;
283 typedef implementation-defined iterator;
284 typedef implementation-defined const_iterator;
285 typedef std::reverse_iterator<iterator> reverse_iterator;
286 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
287 typedef unspecified node_type; // C++17
289 // construct/copy/destroy:
292 is_nothrow_default_constructible<allocator_type>::value &&
293 is_nothrow_default_constructible<key_compare>::value &&
294 is_nothrow_copy_constructible<key_compare>::value);
295 explicit multiset(const value_compare& comp);
296 multiset(const value_compare& comp, const allocator_type& a);
297 template <class InputIterator>
298 multiset(InputIterator first, InputIterator last,
299 const value_compare& comp = value_compare());
300 template <class InputIterator>
301 multiset(InputIterator first, InputIterator last,
302 const value_compare& comp, const allocator_type& a);
303 template<container-compatible-range<value_type> R>
304 multiset(from_range_t, R&& rg,
305 const Compare& comp = Compare(), const Allocator& = Allocator()); // C++23
306 multiset(const multiset& s);
307 multiset(multiset&& s)
309 is_nothrow_move_constructible<allocator_type>::value &&
310 is_nothrow_move_constructible<key_compare>::value);
311 explicit multiset(const allocator_type& a);
312 multiset(const multiset& s, const allocator_type& a);
313 multiset(multiset&& s, const allocator_type& a);
314 multiset(initializer_list<value_type> il, const value_compare& comp = value_compare());
315 multiset(initializer_list<value_type> il, const value_compare& comp,
316 const allocator_type& a);
317 template <class InputIterator>
318 multiset(InputIterator first, InputIterator last, const allocator_type& a)
319 : set(first, last, Compare(), a) {} // C++14
320 template<container-compatible-range<value_type> R>
321 multiset(from_range_t, R&& rg, const Allocator& a))
322 : multiset(from_range, std::forward<R>(rg), Compare(), a) { } // C++23
323 multiset(initializer_list<value_type> il, const allocator_type& a)
324 : set(il, Compare(), a) {} // C++14
327 multiset& operator=(const multiset& s);
328 multiset& operator=(multiset&& s)
330 allocator_type::propagate_on_container_move_assignment::value &&
331 is_nothrow_move_assignable<allocator_type>::value &&
332 is_nothrow_move_assignable<key_compare>::value);
333 multiset& operator=(initializer_list<value_type> il);
336 iterator begin() noexcept;
337 const_iterator begin() const noexcept;
338 iterator end() noexcept;
339 const_iterator end() const noexcept;
341 reverse_iterator rbegin() noexcept;
342 const_reverse_iterator rbegin() const noexcept;
343 reverse_iterator rend() noexcept;
344 const_reverse_iterator rend() const noexcept;
346 const_iterator cbegin() const noexcept;
347 const_iterator cend() const noexcept;
348 const_reverse_iterator crbegin() const noexcept;
349 const_reverse_iterator crend() const noexcept;
352 bool empty() const noexcept;
353 size_type size() const noexcept;
354 size_type max_size() const noexcept;
357 template <class... Args>
358 iterator emplace(Args&&... args);
359 template <class... Args>
360 iterator emplace_hint(const_iterator position, Args&&... args);
361 iterator insert(const value_type& v);
362 iterator insert(value_type&& v);
363 iterator insert(const_iterator position, const value_type& v);
364 iterator insert(const_iterator position, value_type&& v);
365 template <class InputIterator>
366 void insert(InputIterator first, InputIterator last);
367 template<container-compatible-range<value_type> R>
368 void insert_range(R&& rg); // C++23
369 void insert(initializer_list<value_type> il);
371 node_type extract(const_iterator position); // C++17
372 node_type extract(const key_type& x); // C++17
373 iterator insert(node_type&& nh); // C++17
374 iterator insert(const_iterator hint, node_type&& nh); // C++17
376 iterator erase(const_iterator position);
377 iterator erase(iterator position); // C++14
378 size_type erase(const key_type& k);
379 iterator erase(const_iterator first, const_iterator last);
380 void clear() noexcept;
383 void merge(multiset<Key, C2, Allocator>& source); // C++17
385 void merge(multiset<Key, C2, Allocator>&& source); // C++17
387 void merge(set<Key, C2, Allocator>& source); // C++17
389 void merge(set<Key, C2, Allocator>&& source); // C++17
391 void swap(multiset& s)
393 __is_nothrow_swappable<key_compare>::value &&
394 (!allocator_type::propagate_on_container_swap::value ||
395 __is_nothrow_swappable<allocator_type>::value));
398 allocator_type get_allocator() const noexcept;
399 key_compare key_comp() const;
400 value_compare value_comp() const;
403 iterator find(const key_type& k);
404 const_iterator find(const key_type& k) const;
406 iterator find(const K& x);
408 const_iterator find(const K& x) const; // C++14
411 size_type count(const K& x) const; // C++14
412 size_type count(const key_type& k) const;
414 bool contains(const key_type& x) const; // C++20
415 template<class K> bool contains(const K& x) const; // C++20
417 iterator lower_bound(const key_type& k);
418 const_iterator lower_bound(const key_type& k) const;
420 iterator lower_bound(const K& x); // C++14
422 const_iterator lower_bound(const K& x) const; // C++14
424 iterator upper_bound(const key_type& k);
425 const_iterator upper_bound(const key_type& k) const;
427 iterator upper_bound(const K& x); // C++14
429 const_iterator upper_bound(const K& x) const; // C++14
431 pair<iterator,iterator> equal_range(const key_type& k);
432 pair<const_iterator,const_iterator> equal_range(const key_type& k) const;
434 pair<iterator,iterator> equal_range(const K& x); // C++14
436 pair<const_iterator,const_iterator> equal_range(const K& x) const; // C++14
439 template <class InputIterator,
440 class Compare = less<typename iterator_traits<InputIterator>::value_type>,
441 class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
442 multiset(InputIterator, InputIterator,
443 Compare = Compare(), Allocator = Allocator())
444 -> multiset<typename iterator_traits<InputIterator>::value_type, Compare, Allocator>; // C++17
446 template<ranges::input_range R, class Compare = less<ranges::range_value_t<R>>,
447 class Allocator = allocator<ranges::range_value_t<R>>>
448 multiset(from_range_t, R&&, Compare = Compare(), Allocator = Allocator())
449 -> multiset<ranges::range_value_t<R>, Compare, Allocator>;
451 template<class Key, class Compare = less<Key>, class Allocator = allocator<Key>>
452 multiset(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
453 -> multiset<Key, Compare, Allocator>; // C++17
455 template<class InputIterator, class Allocator>
456 multiset(InputIterator, InputIterator, Allocator)
457 -> multiset<typename iterator_traits<InputIterator>::value_type,
458 less<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17
460 template<ranges::input_range R, class Allocator>
461 multiset(from_range_t, R&&, Allocator)
462 -> multiset<ranges::range_value_t<R>, less<ranges::range_value_t<R>>, Allocator>;
464 template<class Key, class Allocator>
465 multiset(initializer_list<Key>, Allocator) -> multiset<Key, less<Key>, Allocator>; // C++17
467 template <class Key, class Compare, class Allocator>
469 operator==(const multiset<Key, Compare, Allocator>& x,
470 const multiset<Key, Compare, Allocator>& y);
472 template <class Key, class Compare, class Allocator>
474 operator< (const multiset<Key, Compare, Allocator>& x,
475 const multiset<Key, Compare, Allocator>& y); // removed in C++20
477 template <class Key, class Compare, class Allocator>
479 operator!=(const multiset<Key, Compare, Allocator>& x,
480 const multiset<Key, Compare, Allocator>& y); // removed in C++20
482 template <class Key, class Compare, class Allocator>
484 operator> (const multiset<Key, Compare, Allocator>& x,
485 const multiset<Key, Compare, Allocator>& y); // removed in C++20
487 template <class Key, class Compare, class Allocator>
489 operator>=(const multiset<Key, Compare, Allocator>& x,
490 const multiset<Key, Compare, Allocator>& y); // removed in C++20
492 template <class Key, class Compare, class Allocator>
494 operator<=(const multiset<Key, Compare, Allocator>& x,
495 const multiset<Key, Compare, Allocator>& y); // removed in C++20
497 template<class Key, class Compare, class Allocator>
498 synth-three-way-result<Key> operator<=>(const multiset<Key, Compare, Allocator>& x,
499 const multiset<Key, Compare, Allocator>& y); // since C++20
501 // specialized algorithms:
502 template <class Key, class Compare, class Allocator>
504 swap(multiset<Key, Compare, Allocator>& x, multiset<Key, Compare, Allocator>& y)
505 noexcept(noexcept(x.swap(y)));
507 template <class Key, class Compare, class Allocator, class Predicate>
508 typename multiset<Key, Compare, Allocator>::size_type
509 erase_if(multiset<Key, Compare, Allocator>& c, Predicate pred); // C++20
515 #include <__cxx03/__algorithm/equal.h>
516 #include <__cxx03/__algorithm/lexicographical_compare.h>
517 #include <__cxx03/__algorithm/lexicographical_compare_three_way.h>
518 #include <__cxx03/__assert>
519 #include <__cxx03/__config>
520 #include <__cxx03/__functional/is_transparent.h>
521 #include <__cxx03/__functional/operations.h>
522 #include <__cxx03/__iterator/erase_if_container.h>
523 #include <__cxx03/__iterator/iterator_traits.h>
524 #include <__cxx03/__iterator/ranges_iterator_traits.h>
525 #include <__cxx03/__iterator/reverse_iterator.h>
526 #include <__cxx03/__memory/allocator.h>
527 #include <__cxx03/__memory_resource/polymorphic_allocator.h>
528 #include <__cxx03/__node_handle>
529 #include <__cxx03/__ranges/concepts.h>
530 #include <__cxx03/__ranges/container_compatible_range.h>
531 #include <__cxx03/__ranges/from_range.h>
532 #include <__cxx03/__tree>
533 #include <__cxx03/__type_traits/is_allocator.h>
534 #include <__cxx03/__utility/forward.h>
535 #include <__cxx03/version>
537 // standard-mandated includes
540 #include <__cxx03/__iterator/access.h>
541 #include <__cxx03/__iterator/data.h>
542 #include <__cxx03/__iterator/empty.h>
543 #include <__cxx03/__iterator/reverse_access.h>
544 #include <__cxx03/__iterator/size.h>
546 // [associative.set.syn]
547 #include <__cxx03/compare>
548 #include <__cxx03/initializer_list>
550 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
551 # pragma GCC system_header
555 #include <__cxx03/__undef_macros>
557 _LIBCPP_BEGIN_NAMESPACE_STD
559 template <class _Key, class _Compare, class _Allocator>
562 template <class _Key, class _Compare = less<_Key>, class _Allocator = allocator<_Key> >
563 class _LIBCPP_TEMPLATE_VIS set {
566 typedef _Key key_type;
567 typedef key_type value_type;
568 typedef __type_identity_t<_Compare> key_compare;
569 typedef key_compare value_compare;
570 typedef __type_identity_t<_Allocator> allocator_type;
571 typedef value_type& reference;
572 typedef const value_type& const_reference;
574 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
575 "Allocator::value_type must be same type as value_type");
578 typedef __tree<value_type, value_compare, allocator_type> __base;
579 typedef allocator_traits<allocator_type> __alloc_traits;
581 static_assert(__check_valid_allocator<allocator_type>::value, "");
586 typedef typename __base::pointer pointer;
587 typedef typename __base::const_pointer const_pointer;
588 typedef typename __base::size_type size_type;
589 typedef typename __base::difference_type difference_type;
590 typedef typename __base::const_iterator iterator;
591 typedef typename __base::const_iterator const_iterator;
592 typedef std::reverse_iterator<iterator> reverse_iterator;
593 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
595 #if _LIBCPP_STD_VER >= 17
596 typedef __set_node_handle<typename __base::__node, allocator_type> node_type;
597 typedef __insert_return_type<iterator, node_type> insert_return_type;
600 template <class _Key2, class _Compare2, class _Alloc2>
601 friend class _LIBCPP_TEMPLATE_VIS set;
602 template <class _Key2, class _Compare2, class _Alloc2>
603 friend class _LIBCPP_TEMPLATE_VIS multiset;
605 _LIBCPP_HIDE_FROM_ABI set() _NOEXCEPT_(
606 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
607 is_nothrow_copy_constructible<key_compare>::value)
608 : __tree_(value_compare()) {}
610 _LIBCPP_HIDE_FROM_ABI explicit set(const value_compare& __comp) _NOEXCEPT_(
611 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
614 _LIBCPP_HIDE_FROM_ABI explicit set(const value_compare& __comp, const allocator_type& __a) : __tree_(__comp, __a) {}
615 template <class _InputIterator>
616 _LIBCPP_HIDE_FROM_ABI set(_InputIterator __f, _InputIterator __l, const value_compare& __comp = value_compare())
621 template <class _InputIterator>
622 _LIBCPP_HIDE_FROM_ABI
623 set(_InputIterator __f, _InputIterator __l, const value_compare& __comp, const allocator_type& __a)
624 : __tree_(__comp, __a) {
628 #if _LIBCPP_STD_VER >= 23
629 template <_ContainerCompatibleRange<value_type> _Range>
630 _LIBCPP_HIDE_FROM_ABI
633 const key_compare& __comp = key_compare(),
634 const allocator_type& __a = allocator_type())
635 : __tree_(__comp, __a) {
636 insert_range(std::forward<_Range>(__range));
640 #if _LIBCPP_STD_VER >= 14
641 template <class _InputIterator>
642 _LIBCPP_HIDE_FROM_ABI set(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
643 : set(__f, __l, key_compare(), __a) {}
646 #if _LIBCPP_STD_VER >= 23
647 template <_ContainerCompatibleRange<value_type> _Range>
648 _LIBCPP_HIDE_FROM_ABI set(from_range_t, _Range&& __range, const allocator_type& __a)
649 : set(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
652 _LIBCPP_HIDE_FROM_ABI set(const set& __s) : __tree_(__s.__tree_) { insert(__s.begin(), __s.end()); }
654 _LIBCPP_HIDE_FROM_ABI set& operator=(const set& __s) {
655 __tree_ = __s.__tree_;
659 #ifndef _LIBCPP_CXX03_LANG
660 _LIBCPP_HIDE_FROM_ABI set(set&& __s) noexcept(is_nothrow_move_constructible<__base>::value)
661 : __tree_(std::move(__s.__tree_)) {}
662 #endif // _LIBCPP_CXX03_LANG
664 _LIBCPP_HIDE_FROM_ABI explicit set(const allocator_type& __a) : __tree_(__a) {}
666 _LIBCPP_HIDE_FROM_ABI set(const set& __s, const allocator_type& __a) : __tree_(__s.__tree_.value_comp(), __a) {
667 insert(__s.begin(), __s.end());
670 #ifndef _LIBCPP_CXX03_LANG
671 _LIBCPP_HIDE_FROM_ABI set(set&& __s, const allocator_type& __a);
673 _LIBCPP_HIDE_FROM_ABI set(initializer_list<value_type> __il, const value_compare& __comp = value_compare())
675 insert(__il.begin(), __il.end());
678 _LIBCPP_HIDE_FROM_ABI set(initializer_list<value_type> __il, const value_compare& __comp, const allocator_type& __a)
679 : __tree_(__comp, __a) {
680 insert(__il.begin(), __il.end());
683 # if _LIBCPP_STD_VER >= 14
684 _LIBCPP_HIDE_FROM_ABI set(initializer_list<value_type> __il, const allocator_type& __a)
685 : set(__il, key_compare(), __a) {}
688 _LIBCPP_HIDE_FROM_ABI set& operator=(initializer_list<value_type> __il) {
689 __tree_.__assign_unique(__il.begin(), __il.end());
693 _LIBCPP_HIDE_FROM_ABI set& operator=(set&& __s) noexcept(is_nothrow_move_assignable<__base>::value) {
694 __tree_ = std::move(__s.__tree_);
697 #endif // _LIBCPP_CXX03_LANG
699 _LIBCPP_HIDE_FROM_ABI ~set() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
701 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
702 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
703 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
704 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
706 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
707 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
708 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
709 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
711 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
712 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
713 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
714 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
716 _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
717 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
718 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
721 #ifndef _LIBCPP_CXX03_LANG
722 template <class... _Args>
723 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> emplace(_Args&&... __args) {
724 return __tree_.__emplace_unique(std::forward<_Args>(__args)...);
726 template <class... _Args>
727 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
728 return __tree_.__emplace_hint_unique(__p, std::forward<_Args>(__args)...);
730 #endif // _LIBCPP_CXX03_LANG
732 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(const value_type& __v) { return __tree_.__insert_unique(__v); }
733 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
734 return __tree_.__insert_unique(__p, __v);
737 template <class _InputIterator>
738 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
739 for (const_iterator __e = cend(); __f != __l; ++__f)
740 __tree_.__insert_unique(__e, *__f);
743 #if _LIBCPP_STD_VER >= 23
744 template <_ContainerCompatibleRange<value_type> _Range>
745 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
746 const_iterator __end = cend();
747 for (auto&& __element : __range) {
748 __tree_.__insert_unique(__end, std::forward<decltype(__element)>(__element));
753 #ifndef _LIBCPP_CXX03_LANG
754 _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> insert(value_type&& __v) {
755 return __tree_.__insert_unique(std::move(__v));
758 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
759 return __tree_.__insert_unique(__p, std::move(__v));
762 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
763 #endif // _LIBCPP_CXX03_LANG
765 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p); }
766 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_unique(__k); }
767 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) { return __tree_.erase(__f, __l); }
768 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
770 #if _LIBCPP_STD_VER >= 17
771 _LIBCPP_HIDE_FROM_ABI insert_return_type insert(node_type&& __nh) {
772 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
773 "node_type with incompatible allocator passed to set::insert()");
774 return __tree_.template __node_handle_insert_unique< node_type, insert_return_type>(std::move(__nh));
776 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
777 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
778 "node_type with incompatible allocator passed to set::insert()");
779 return __tree_.template __node_handle_insert_unique<node_type>(__hint, std::move(__nh));
781 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
782 return __tree_.template __node_handle_extract<node_type>(__key);
784 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
785 return __tree_.template __node_handle_extract<node_type>(__it);
787 template <class _Compare2>
788 _LIBCPP_HIDE_FROM_ABI void merge(set<key_type, _Compare2, allocator_type>& __source) {
789 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
790 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
791 __tree_.__node_handle_merge_unique(__source.__tree_);
793 template <class _Compare2>
794 _LIBCPP_HIDE_FROM_ABI void merge(set<key_type, _Compare2, allocator_type>&& __source) {
795 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
796 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
797 __tree_.__node_handle_merge_unique(__source.__tree_);
799 template <class _Compare2>
800 _LIBCPP_HIDE_FROM_ABI void merge(multiset<key_type, _Compare2, allocator_type>& __source) {
801 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
802 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
803 __tree_.__node_handle_merge_unique(__source.__tree_);
805 template <class _Compare2>
806 _LIBCPP_HIDE_FROM_ABI void merge(multiset<key_type, _Compare2, allocator_type>&& __source) {
807 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
808 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
809 __tree_.__node_handle_merge_unique(__source.__tree_);
813 _LIBCPP_HIDE_FROM_ABI void swap(set& __s) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) { __tree_.swap(__s.__tree_); }
815 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return __tree_.__alloc(); }
816 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp(); }
817 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return __tree_.value_comp(); }
820 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
821 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
822 #if _LIBCPP_STD_VER >= 14
823 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
824 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
825 return __tree_.find(__k);
827 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
828 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
829 return __tree_.find(__k);
833 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_unique(__k); }
834 #if _LIBCPP_STD_VER >= 14
835 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
836 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
837 return __tree_.__count_multi(__k);
841 #if _LIBCPP_STD_VER >= 20
842 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
843 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
844 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
845 return find(__k) != end();
847 #endif // _LIBCPP_STD_VER >= 20
849 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
850 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
851 #if _LIBCPP_STD_VER >= 14
852 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
853 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
854 return __tree_.lower_bound(__k);
857 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
858 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
859 return __tree_.lower_bound(__k);
863 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
864 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
865 #if _LIBCPP_STD_VER >= 14
866 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
867 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
868 return __tree_.upper_bound(__k);
870 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
871 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
872 return __tree_.upper_bound(__k);
876 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
877 return __tree_.__equal_range_unique(__k);
879 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
880 return __tree_.__equal_range_unique(__k);
882 #if _LIBCPP_STD_VER >= 14
883 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
884 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
885 return __tree_.__equal_range_multi(__k);
887 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
888 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
889 return __tree_.__equal_range_multi(__k);
894 #if _LIBCPP_STD_VER >= 17
895 template <class _InputIterator,
896 class _Compare = less<__iter_value_type<_InputIterator>>,
897 class _Allocator = allocator<__iter_value_type<_InputIterator>>,
898 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
899 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
900 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
901 set(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
902 -> set<__iter_value_type<_InputIterator>, _Compare, _Allocator>;
904 # if _LIBCPP_STD_VER >= 23
905 template <ranges::input_range _Range,
906 class _Compare = less<ranges::range_value_t<_Range>>,
907 class _Allocator = allocator<ranges::range_value_t<_Range>>,
908 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
909 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
910 set(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
911 -> set<ranges::range_value_t<_Range>, _Compare, _Allocator>;
914 template <class _Key,
915 class _Compare = less<_Key>,
916 class _Allocator = allocator<_Key>,
917 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
918 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
919 set(initializer_list<_Key>, _Compare = _Compare(), _Allocator = _Allocator()) -> set<_Key, _Compare, _Allocator>;
921 template <class _InputIterator,
923 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
924 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
927 _Allocator) -> set<__iter_value_type<_InputIterator>, less<__iter_value_type<_InputIterator>>, _Allocator>;
929 # if _LIBCPP_STD_VER >= 23
930 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
933 _Allocator) -> set<ranges::range_value_t<_Range>, less<ranges::range_value_t<_Range>>, _Allocator>;
936 template <class _Key, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
937 set(initializer_list<_Key>, _Allocator) -> set<_Key, less<_Key>, _Allocator>;
940 #ifndef _LIBCPP_CXX03_LANG
942 template <class _Key, class _Compare, class _Allocator>
943 set<_Key, _Compare, _Allocator>::set(set&& __s, const allocator_type& __a) : __tree_(std::move(__s.__tree_), __a) {
944 if (__a != __s.get_allocator()) {
945 const_iterator __e = cend();
947 insert(__e, std::move(__s.__tree_.remove(__s.begin())->__value_));
951 #endif // _LIBCPP_CXX03_LANG
953 template <class _Key, class _Compare, class _Allocator>
954 inline _LIBCPP_HIDE_FROM_ABI bool
955 operator==(const set<_Key, _Compare, _Allocator>& __x, const set<_Key, _Compare, _Allocator>& __y) {
956 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
959 #if _LIBCPP_STD_VER <= 17
961 template <class _Key, class _Compare, class _Allocator>
962 inline _LIBCPP_HIDE_FROM_ABI bool
963 operator<(const set<_Key, _Compare, _Allocator>& __x, const set<_Key, _Compare, _Allocator>& __y) {
964 return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
967 template <class _Key, class _Compare, class _Allocator>
968 inline _LIBCPP_HIDE_FROM_ABI bool
969 operator!=(const set<_Key, _Compare, _Allocator>& __x, const set<_Key, _Compare, _Allocator>& __y) {
970 return !(__x == __y);
973 template <class _Key, class _Compare, class _Allocator>
974 inline _LIBCPP_HIDE_FROM_ABI bool
975 operator>(const set<_Key, _Compare, _Allocator>& __x, const set<_Key, _Compare, _Allocator>& __y) {
979 template <class _Key, class _Compare, class _Allocator>
980 inline _LIBCPP_HIDE_FROM_ABI bool
981 operator>=(const set<_Key, _Compare, _Allocator>& __x, const set<_Key, _Compare, _Allocator>& __y) {
985 template <class _Key, class _Compare, class _Allocator>
986 inline _LIBCPP_HIDE_FROM_ABI bool
987 operator<=(const set<_Key, _Compare, _Allocator>& __x, const set<_Key, _Compare, _Allocator>& __y) {
991 #else // _LIBCPP_STD_VER <= 17
993 template <class _Key, class _Allocator>
994 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<_Key>
995 operator<=>(const set<_Key, _Allocator>& __x, const set<_Key, _Allocator>& __y) {
996 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), std::__synth_three_way);
999 #endif // _LIBCPP_STD_VER <= 17
1001 // specialized algorithms:
1002 template <class _Key, class _Compare, class _Allocator>
1003 inline _LIBCPP_HIDE_FROM_ABI void swap(set<_Key, _Compare, _Allocator>& __x, set<_Key, _Compare, _Allocator>& __y)
1004 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
1008 #if _LIBCPP_STD_VER >= 20
1009 template <class _Key, class _Compare, class _Allocator, class _Predicate>
1010 inline _LIBCPP_HIDE_FROM_ABI typename set<_Key, _Compare, _Allocator>::size_type
1011 erase_if(set<_Key, _Compare, _Allocator>& __c, _Predicate __pred) {
1012 return std::__libcpp_erase_if_container(__c, __pred);
1016 template <class _Key, class _Compare = less<_Key>, class _Allocator = allocator<_Key> >
1017 class _LIBCPP_TEMPLATE_VIS multiset {
1020 typedef _Key key_type;
1021 typedef key_type value_type;
1022 typedef __type_identity_t<_Compare> key_compare;
1023 typedef key_compare value_compare;
1024 typedef __type_identity_t<_Allocator> allocator_type;
1025 typedef value_type& reference;
1026 typedef const value_type& const_reference;
1028 static_assert(is_same<typename allocator_type::value_type, value_type>::value,
1029 "Allocator::value_type must be same type as value_type");
1032 typedef __tree<value_type, value_compare, allocator_type> __base;
1033 typedef allocator_traits<allocator_type> __alloc_traits;
1035 static_assert(__check_valid_allocator<allocator_type>::value, "");
1040 typedef typename __base::pointer pointer;
1041 typedef typename __base::const_pointer const_pointer;
1042 typedef typename __base::size_type size_type;
1043 typedef typename __base::difference_type difference_type;
1044 typedef typename __base::const_iterator iterator;
1045 typedef typename __base::const_iterator const_iterator;
1046 typedef std::reverse_iterator<iterator> reverse_iterator;
1047 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
1049 #if _LIBCPP_STD_VER >= 17
1050 typedef __set_node_handle<typename __base::__node, allocator_type> node_type;
1053 template <class _Key2, class _Compare2, class _Alloc2>
1054 friend class _LIBCPP_TEMPLATE_VIS set;
1055 template <class _Key2, class _Compare2, class _Alloc2>
1056 friend class _LIBCPP_TEMPLATE_VIS multiset;
1058 // construct/copy/destroy:
1059 _LIBCPP_HIDE_FROM_ABI multiset() _NOEXCEPT_(
1060 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_default_constructible<key_compare>::value&&
1061 is_nothrow_copy_constructible<key_compare>::value)
1062 : __tree_(value_compare()) {}
1064 _LIBCPP_HIDE_FROM_ABI explicit multiset(const value_compare& __comp) _NOEXCEPT_(
1065 is_nothrow_default_constructible<allocator_type>::value&& is_nothrow_copy_constructible<key_compare>::value)
1066 : __tree_(__comp) {}
1068 _LIBCPP_HIDE_FROM_ABI explicit multiset(const value_compare& __comp, const allocator_type& __a)
1069 : __tree_(__comp, __a) {}
1070 template <class _InputIterator>
1071 _LIBCPP_HIDE_FROM_ABI multiset(_InputIterator __f, _InputIterator __l, const value_compare& __comp = value_compare())
1076 #if _LIBCPP_STD_VER >= 14
1077 template <class _InputIterator>
1078 _LIBCPP_HIDE_FROM_ABI multiset(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1079 : multiset(__f, __l, key_compare(), __a) {}
1082 template <class _InputIterator>
1083 _LIBCPP_HIDE_FROM_ABI
1084 multiset(_InputIterator __f, _InputIterator __l, const value_compare& __comp, const allocator_type& __a)
1085 : __tree_(__comp, __a) {
1089 #if _LIBCPP_STD_VER >= 23
1090 template <_ContainerCompatibleRange<value_type> _Range>
1091 _LIBCPP_HIDE_FROM_ABI
1092 multiset(from_range_t,
1094 const key_compare& __comp = key_compare(),
1095 const allocator_type& __a = allocator_type())
1096 : __tree_(__comp, __a) {
1097 insert_range(std::forward<_Range>(__range));
1100 template <_ContainerCompatibleRange<value_type> _Range>
1101 _LIBCPP_HIDE_FROM_ABI multiset(from_range_t, _Range&& __range, const allocator_type& __a)
1102 : multiset(from_range, std::forward<_Range>(__range), key_compare(), __a) {}
1105 _LIBCPP_HIDE_FROM_ABI multiset(const multiset& __s)
1106 : __tree_(__s.__tree_.value_comp(),
1107 __alloc_traits::select_on_container_copy_construction(__s.__tree_.__alloc())) {
1108 insert(__s.begin(), __s.end());
1111 _LIBCPP_HIDE_FROM_ABI multiset& operator=(const multiset& __s) {
1112 __tree_ = __s.__tree_;
1116 #ifndef _LIBCPP_CXX03_LANG
1117 _LIBCPP_HIDE_FROM_ABI multiset(multiset&& __s) noexcept(is_nothrow_move_constructible<__base>::value)
1118 : __tree_(std::move(__s.__tree_)) {}
1120 _LIBCPP_HIDE_FROM_ABI multiset(multiset&& __s, const allocator_type& __a);
1121 #endif // _LIBCPP_CXX03_LANG
1122 _LIBCPP_HIDE_FROM_ABI explicit multiset(const allocator_type& __a) : __tree_(__a) {}
1123 _LIBCPP_HIDE_FROM_ABI multiset(const multiset& __s, const allocator_type& __a)
1124 : __tree_(__s.__tree_.value_comp(), __a) {
1125 insert(__s.begin(), __s.end());
1128 #ifndef _LIBCPP_CXX03_LANG
1129 _LIBCPP_HIDE_FROM_ABI multiset(initializer_list<value_type> __il, const value_compare& __comp = value_compare())
1131 insert(__il.begin(), __il.end());
1134 _LIBCPP_HIDE_FROM_ABI
1135 multiset(initializer_list<value_type> __il, const value_compare& __comp, const allocator_type& __a)
1136 : __tree_(__comp, __a) {
1137 insert(__il.begin(), __il.end());
1140 # if _LIBCPP_STD_VER >= 14
1141 _LIBCPP_HIDE_FROM_ABI multiset(initializer_list<value_type> __il, const allocator_type& __a)
1142 : multiset(__il, key_compare(), __a) {}
1145 _LIBCPP_HIDE_FROM_ABI multiset& operator=(initializer_list<value_type> __il) {
1146 __tree_.__assign_multi(__il.begin(), __il.end());
1150 _LIBCPP_HIDE_FROM_ABI multiset& operator=(multiset&& __s) _NOEXCEPT_(is_nothrow_move_assignable<__base>::value) {
1151 __tree_ = std::move(__s.__tree_);
1154 #endif // _LIBCPP_CXX03_LANG
1156 _LIBCPP_HIDE_FROM_ABI ~multiset() { static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), ""); }
1158 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __tree_.begin(); }
1159 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __tree_.begin(); }
1160 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __tree_.end(); }
1161 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __tree_.end(); }
1163 _LIBCPP_HIDE_FROM_ABI reverse_iterator rbegin() _NOEXCEPT { return reverse_iterator(end()); }
1164 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(end()); }
1165 _LIBCPP_HIDE_FROM_ABI reverse_iterator rend() _NOEXCEPT { return reverse_iterator(begin()); }
1166 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(begin()); }
1168 _LIBCPP_HIDE_FROM_ABI const_iterator cbegin() const _NOEXCEPT { return begin(); }
1169 _LIBCPP_HIDE_FROM_ABI const_iterator cend() const _NOEXCEPT { return end(); }
1170 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crbegin() const _NOEXCEPT { return rbegin(); }
1171 _LIBCPP_HIDE_FROM_ABI const_reverse_iterator crend() const _NOEXCEPT { return rend(); }
1173 _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI bool empty() const _NOEXCEPT { return __tree_.size() == 0; }
1174 _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __tree_.size(); }
1175 _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { return __tree_.max_size(); }
1178 #ifndef _LIBCPP_CXX03_LANG
1179 template <class... _Args>
1180 _LIBCPP_HIDE_FROM_ABI iterator emplace(_Args&&... __args) {
1181 return __tree_.__emplace_multi(std::forward<_Args>(__args)...);
1183 template <class... _Args>
1184 _LIBCPP_HIDE_FROM_ABI iterator emplace_hint(const_iterator __p, _Args&&... __args) {
1185 return __tree_.__emplace_hint_multi(__p, std::forward<_Args>(__args)...);
1187 #endif // _LIBCPP_CXX03_LANG
1189 _LIBCPP_HIDE_FROM_ABI iterator insert(const value_type& __v) { return __tree_.__insert_multi(__v); }
1190 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, const value_type& __v) {
1191 return __tree_.__insert_multi(__p, __v);
1194 template <class _InputIterator>
1195 _LIBCPP_HIDE_FROM_ABI void insert(_InputIterator __f, _InputIterator __l) {
1196 for (const_iterator __e = cend(); __f != __l; ++__f)
1197 __tree_.__insert_multi(__e, *__f);
1200 #if _LIBCPP_STD_VER >= 23
1201 template <_ContainerCompatibleRange<value_type> _Range>
1202 _LIBCPP_HIDE_FROM_ABI void insert_range(_Range&& __range) {
1203 const_iterator __end = cend();
1204 for (auto&& __element : __range) {
1205 __tree_.__insert_multi(__end, std::forward<decltype(__element)>(__element));
1210 #ifndef _LIBCPP_CXX03_LANG
1211 _LIBCPP_HIDE_FROM_ABI iterator insert(value_type&& __v) { return __tree_.__insert_multi(std::move(__v)); }
1213 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __p, value_type&& __v) {
1214 return __tree_.__insert_multi(__p, std::move(__v));
1217 _LIBCPP_HIDE_FROM_ABI void insert(initializer_list<value_type> __il) { insert(__il.begin(), __il.end()); }
1218 #endif // _LIBCPP_CXX03_LANG
1220 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p) { return __tree_.erase(__p); }
1221 _LIBCPP_HIDE_FROM_ABI size_type erase(const key_type& __k) { return __tree_.__erase_multi(__k); }
1222 _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __f, const_iterator __l) { return __tree_.erase(__f, __l); }
1223 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __tree_.clear(); }
1225 #if _LIBCPP_STD_VER >= 17
1226 _LIBCPP_HIDE_FROM_ABI iterator insert(node_type&& __nh) {
1227 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1228 "node_type with incompatible allocator passed to multiset::insert()");
1229 return __tree_.template __node_handle_insert_multi<node_type>(std::move(__nh));
1231 _LIBCPP_HIDE_FROM_ABI iterator insert(const_iterator __hint, node_type&& __nh) {
1232 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__nh.empty() || __nh.get_allocator() == get_allocator(),
1233 "node_type with incompatible allocator passed to multiset::insert()");
1234 return __tree_.template __node_handle_insert_multi<node_type>(__hint, std::move(__nh));
1236 _LIBCPP_HIDE_FROM_ABI node_type extract(key_type const& __key) {
1237 return __tree_.template __node_handle_extract<node_type>(__key);
1239 _LIBCPP_HIDE_FROM_ABI node_type extract(const_iterator __it) {
1240 return __tree_.template __node_handle_extract<node_type>(__it);
1242 template <class _Compare2>
1243 _LIBCPP_HIDE_FROM_ABI void merge(multiset<key_type, _Compare2, allocator_type>& __source) {
1244 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1245 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1246 __tree_.__node_handle_merge_multi(__source.__tree_);
1248 template <class _Compare2>
1249 _LIBCPP_HIDE_FROM_ABI void merge(multiset<key_type, _Compare2, allocator_type>&& __source) {
1250 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1251 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1252 __tree_.__node_handle_merge_multi(__source.__tree_);
1254 template <class _Compare2>
1255 _LIBCPP_HIDE_FROM_ABI void merge(set<key_type, _Compare2, allocator_type>& __source) {
1256 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1257 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1258 __tree_.__node_handle_merge_multi(__source.__tree_);
1260 template <class _Compare2>
1261 _LIBCPP_HIDE_FROM_ABI void merge(set<key_type, _Compare2, allocator_type>&& __source) {
1262 _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(
1263 __source.get_allocator() == get_allocator(), "merging container with incompatible allocator");
1264 __tree_.__node_handle_merge_multi(__source.__tree_);
1268 _LIBCPP_HIDE_FROM_ABI void swap(multiset& __s) _NOEXCEPT_(__is_nothrow_swappable_v<__base>) {
1269 __tree_.swap(__s.__tree_);
1272 _LIBCPP_HIDE_FROM_ABI allocator_type get_allocator() const _NOEXCEPT { return __tree_.__alloc(); }
1273 _LIBCPP_HIDE_FROM_ABI key_compare key_comp() const { return __tree_.value_comp(); }
1274 _LIBCPP_HIDE_FROM_ABI value_compare value_comp() const { return __tree_.value_comp(); }
1277 _LIBCPP_HIDE_FROM_ABI iterator find(const key_type& __k) { return __tree_.find(__k); }
1278 _LIBCPP_HIDE_FROM_ABI const_iterator find(const key_type& __k) const { return __tree_.find(__k); }
1279 #if _LIBCPP_STD_VER >= 14
1280 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1281 _LIBCPP_HIDE_FROM_ABI iterator find(const _K2& __k) {
1282 return __tree_.find(__k);
1284 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1285 _LIBCPP_HIDE_FROM_ABI const_iterator find(const _K2& __k) const {
1286 return __tree_.find(__k);
1290 _LIBCPP_HIDE_FROM_ABI size_type count(const key_type& __k) const { return __tree_.__count_multi(__k); }
1291 #if _LIBCPP_STD_VER >= 14
1292 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1293 _LIBCPP_HIDE_FROM_ABI size_type count(const _K2& __k) const {
1294 return __tree_.__count_multi(__k);
1298 #if _LIBCPP_STD_VER >= 20
1299 _LIBCPP_HIDE_FROM_ABI bool contains(const key_type& __k) const { return find(__k) != end(); }
1300 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1301 _LIBCPP_HIDE_FROM_ABI bool contains(const _K2& __k) const {
1302 return find(__k) != end();
1304 #endif // _LIBCPP_STD_VER >= 20
1306 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const key_type& __k) { return __tree_.lower_bound(__k); }
1307 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const key_type& __k) const { return __tree_.lower_bound(__k); }
1308 #if _LIBCPP_STD_VER >= 14
1309 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1310 _LIBCPP_HIDE_FROM_ABI iterator lower_bound(const _K2& __k) {
1311 return __tree_.lower_bound(__k);
1314 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1315 _LIBCPP_HIDE_FROM_ABI const_iterator lower_bound(const _K2& __k) const {
1316 return __tree_.lower_bound(__k);
1320 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const key_type& __k) { return __tree_.upper_bound(__k); }
1321 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const key_type& __k) const { return __tree_.upper_bound(__k); }
1322 #if _LIBCPP_STD_VER >= 14
1323 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1324 _LIBCPP_HIDE_FROM_ABI iterator upper_bound(const _K2& __k) {
1325 return __tree_.upper_bound(__k);
1327 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1328 _LIBCPP_HIDE_FROM_ABI const_iterator upper_bound(const _K2& __k) const {
1329 return __tree_.upper_bound(__k);
1333 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const key_type& __k) {
1334 return __tree_.__equal_range_multi(__k);
1336 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const key_type& __k) const {
1337 return __tree_.__equal_range_multi(__k);
1339 #if _LIBCPP_STD_VER >= 14
1340 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1341 _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> equal_range(const _K2& __k) {
1342 return __tree_.__equal_range_multi(__k);
1344 template <typename _K2, enable_if_t<__is_transparent_v<_Compare, _K2>, int> = 0>
1345 _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> equal_range(const _K2& __k) const {
1346 return __tree_.__equal_range_multi(__k);
1351 #if _LIBCPP_STD_VER >= 17
1352 template <class _InputIterator,
1353 class _Compare = less<__iter_value_type<_InputIterator>>,
1354 class _Allocator = allocator<__iter_value_type<_InputIterator>>,
1355 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1356 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
1357 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
1358 multiset(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
1359 -> multiset<__iter_value_type<_InputIterator>, _Compare, _Allocator>;
1361 # if _LIBCPP_STD_VER >= 23
1362 template <ranges::input_range _Range,
1363 class _Compare = less<ranges::range_value_t<_Range>>,
1364 class _Allocator = allocator<ranges::range_value_t<_Range>>,
1365 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
1366 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
1367 multiset(from_range_t, _Range&&, _Compare = _Compare(), _Allocator = _Allocator())
1368 -> multiset<ranges::range_value_t<_Range>, _Compare, _Allocator>;
1371 template <class _Key,
1372 class _Compare = less<_Key>,
1373 class _Allocator = allocator<_Key>,
1374 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
1375 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
1376 multiset(initializer_list<_Key>,
1377 _Compare = _Compare(),
1378 _Allocator = _Allocator()) -> multiset<_Key, _Compare, _Allocator>;
1380 template <class _InputIterator,
1382 class = enable_if_t<__has_input_iterator_category<_InputIterator>::value, void>,
1383 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1384 multiset(_InputIterator, _InputIterator, _Allocator)
1385 -> multiset<__iter_value_type<_InputIterator>, less<__iter_value_type<_InputIterator>>, _Allocator>;
1387 # if _LIBCPP_STD_VER >= 23
1388 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1389 multiset(from_range_t,
1391 _Allocator) -> multiset<ranges::range_value_t<_Range>, less<ranges::range_value_t<_Range>>, _Allocator>;
1394 template <class _Key, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1395 multiset(initializer_list<_Key>, _Allocator) -> multiset<_Key, less<_Key>, _Allocator>;
1398 #ifndef _LIBCPP_CXX03_LANG
1400 template <class _Key, class _Compare, class _Allocator>
1401 multiset<_Key, _Compare, _Allocator>::multiset(multiset&& __s, const allocator_type& __a)
1402 : __tree_(std::move(__s.__tree_), __a) {
1403 if (__a != __s.get_allocator()) {
1404 const_iterator __e = cend();
1405 while (!__s.empty())
1406 insert(__e, std::move(__s.__tree_.remove(__s.begin())->__value_));
1410 #endif // _LIBCPP_CXX03_LANG
1412 template <class _Key, class _Compare, class _Allocator>
1413 inline _LIBCPP_HIDE_FROM_ABI bool
1414 operator==(const multiset<_Key, _Compare, _Allocator>& __x, const multiset<_Key, _Compare, _Allocator>& __y) {
1415 return __x.size() == __y.size() && std::equal(__x.begin(), __x.end(), __y.begin());
1418 #if _LIBCPP_STD_VER <= 17
1420 template <class _Key, class _Compare, class _Allocator>
1421 inline _LIBCPP_HIDE_FROM_ABI bool
1422 operator<(const multiset<_Key, _Compare, _Allocator>& __x, const multiset<_Key, _Compare, _Allocator>& __y) {
1423 return std::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
1426 template <class _Key, class _Compare, class _Allocator>
1427 inline _LIBCPP_HIDE_FROM_ABI bool
1428 operator!=(const multiset<_Key, _Compare, _Allocator>& __x, const multiset<_Key, _Compare, _Allocator>& __y) {
1429 return !(__x == __y);
1432 template <class _Key, class _Compare, class _Allocator>
1433 inline _LIBCPP_HIDE_FROM_ABI bool
1434 operator>(const multiset<_Key, _Compare, _Allocator>& __x, const multiset<_Key, _Compare, _Allocator>& __y) {
1438 template <class _Key, class _Compare, class _Allocator>
1439 inline _LIBCPP_HIDE_FROM_ABI bool
1440 operator>=(const multiset<_Key, _Compare, _Allocator>& __x, const multiset<_Key, _Compare, _Allocator>& __y) {
1441 return !(__x < __y);
1444 template <class _Key, class _Compare, class _Allocator>
1445 inline _LIBCPP_HIDE_FROM_ABI bool
1446 operator<=(const multiset<_Key, _Compare, _Allocator>& __x, const multiset<_Key, _Compare, _Allocator>& __y) {
1447 return !(__y < __x);
1450 #else // _LIBCPP_STD_VER <= 17
1452 template <class _Key, class _Allocator>
1453 _LIBCPP_HIDE_FROM_ABI __synth_three_way_result<_Key>
1454 operator<=>(const multiset<_Key, _Allocator>& __x, const multiset<_Key, _Allocator>& __y) {
1455 return std::lexicographical_compare_three_way(__x.begin(), __x.end(), __y.begin(), __y.end(), __synth_three_way);
1458 #endif // _LIBCPP_STD_VER <= 17
1460 template <class _Key, class _Compare, class _Allocator>
1461 inline _LIBCPP_HIDE_FROM_ABI void
1462 swap(multiset<_Key, _Compare, _Allocator>& __x, multiset<_Key, _Compare, _Allocator>& __y)
1463 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) {
1467 #if _LIBCPP_STD_VER >= 20
1468 template <class _Key, class _Compare, class _Allocator, class _Predicate>
1469 inline _LIBCPP_HIDE_FROM_ABI typename multiset<_Key, _Compare, _Allocator>::size_type
1470 erase_if(multiset<_Key, _Compare, _Allocator>& __c, _Predicate __pred) {
1471 return std::__libcpp_erase_if_container(__c, __pred);
1475 _LIBCPP_END_NAMESPACE_STD
1477 #if _LIBCPP_STD_VER >= 17
1478 _LIBCPP_BEGIN_NAMESPACE_STD
1480 template <class _KeyT, class _CompareT = std::less<_KeyT>>
1481 using set _LIBCPP_AVAILABILITY_PMR = std::set<_KeyT, _CompareT, polymorphic_allocator<_KeyT>>;
1483 template <class _KeyT, class _CompareT = std::less<_KeyT>>
1484 using multiset _LIBCPP_AVAILABILITY_PMR = std::multiset<_KeyT, _CompareT, polymorphic_allocator<_KeyT>>;
1486 _LIBCPP_END_NAMESPACE_STD
1491 #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
1492 # include <__cxx03/concepts>
1493 # include <__cxx03/cstdlib>
1494 # include <__cxx03/functional>
1495 # include <__cxx03/iterator>
1496 # include <__cxx03/stdexcept>
1497 # include <__cxx03/type_traits>
1500 #endif // _LIBCPP_SET