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);
62 is_nothrow_move_constructible<allocator_type>::value &&
63 is_nothrow_move_constructible<key_compare>::value);
64 explicit set(const allocator_type& a);
65 set(const set& s, const allocator_type& a);
66 set(set&& s, const allocator_type& a);
67 set(initializer_list<value_type> il, const value_compare& comp = value_compare());
68 set(initializer_list<value_type> il, const value_compare& comp,
69 const allocator_type& a);
70 template <class InputIterator>
71 set(InputIterator first, InputIterator last, const allocator_type& a)
72 : set(first, last, Compare(), a) {} // C++14
73 set(initializer_list<value_type> il, const allocator_type& a)
74 : set(il, Compare(), a) {} // C++14
77 set& operator=(const set& s);
78 set& operator=(set&& s)
80 allocator_type::propagate_on_container_move_assignment::value &&
81 is_nothrow_move_assignable<allocator_type>::value &&
82 is_nothrow_move_assignable<key_compare>::value);
83 set& operator=(initializer_list<value_type> il);
86 iterator begin() noexcept;
87 const_iterator begin() const noexcept;
88 iterator end() noexcept;
89 const_iterator end() const noexcept;
91 reverse_iterator rbegin() noexcept;
92 const_reverse_iterator rbegin() const noexcept;
93 reverse_iterator rend() noexcept;
94 const_reverse_iterator rend() const noexcept;
96 const_iterator cbegin() const noexcept;
97 const_iterator cend() const noexcept;
98 const_reverse_iterator crbegin() const noexcept;
99 const_reverse_iterator crend() const noexcept;
102 bool empty() const noexcept;
103 size_type size() const noexcept;
104 size_type max_size() const noexcept;
107 template <class... Args>
108 pair<iterator, bool> emplace(Args&&... args);
109 template <class... Args>
110 iterator emplace_hint(const_iterator position, Args&&... args);
111 pair<iterator,bool> insert(const value_type& v);
112 pair<iterator,bool> insert(value_type&& v);
113 iterator insert(const_iterator position, const value_type& v);
114 iterator insert(const_iterator position, value_type&& v);
115 template <class InputIterator>
116 void insert(InputIterator first, InputIterator last);
117 void insert(initializer_list<value_type> il);
119 node_type extract(const_iterator position); // C++17
120 node_type extract(const key_type& x); // C++17
121 insert_return_type insert(node_type&& nh); // C++17
122 iterator insert(const_iterator hint, node_type&& nh); // C++17
124 iterator erase(const_iterator position);
125 iterator erase(iterator position); // C++14
126 size_type erase(const key_type& k);
127 iterator erase(const_iterator first, const_iterator last);
128 void clear() noexcept;
131 void merge(set<Key, C2, Allocator>& source); // C++17
133 void merge(set<Key, C2, Allocator>&& source); // C++17
135 void merge(multiset<Key, C2, Allocator>& source); // C++17
137 void merge(multiset<Key, C2, Allocator>&& source); // C++17
141 __is_nothrow_swappable<key_compare>::value &&
142 (!allocator_type::propagate_on_container_swap::value ||
143 __is_nothrow_swappable<allocator_type>::value));
146 allocator_type get_allocator() const noexcept;
147 key_compare key_comp() const;
148 value_compare value_comp() const;
151 iterator find(const key_type& k);
152 const_iterator find(const key_type& k) const;
154 iterator find(const K& x);
156 const_iterator find(const K& x) const; // C++14
159 size_type count(const K& x) const; // C++14
160 size_type count(const key_type& k) const;
162 bool contains(const key_type& x) const; // C++20
163 template<class K> bool contains(const K& x) const; // C++20
165 iterator lower_bound(const key_type& k);
166 const_iterator lower_bound(const key_type& k) const;
168 iterator lower_bound(const K& x); // C++14
170 const_iterator lower_bound(const K& x) const; // C++14
172 iterator upper_bound(const key_type& k);
173 const_iterator upper_bound(const key_type& k) const;
175 iterator upper_bound(const K& x); // C++14
177 const_iterator upper_bound(const K& x) const; // C++14
178 pair<iterator,iterator> equal_range(const key_type& k);
179 pair<const_iterator,const_iterator> equal_range(const key_type& k) const;
181 pair<iterator,iterator> equal_range(const K& x); // C++14
183 pair<const_iterator,const_iterator> equal_range(const K& x) const; // C++14
186 template <class InputIterator,
187 class Compare = less<typename iterator_traits<InputIterator>::value_type>,
188 class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
189 set(InputIterator, InputIterator,
190 Compare = Compare(), Allocator = Allocator())
191 -> set<typename iterator_traits<InputIterator>::value_type, Compare, Allocator>; // C++17
193 template<class Key, class Compare = less<Key>, class Allocator = allocator<Key>>
194 set(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
195 -> set<Key, Compare, Allocator>; // C++17
197 template<class InputIterator, class Allocator>
198 set(InputIterator, InputIterator, Allocator)
199 -> set<typename iterator_traits<InputIterator>::value_type,
200 less<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17
202 template<class Key, class Allocator>
203 set(initializer_list<Key>, Allocator) -> set<Key, less<Key>, Allocator>; // C++17
205 template <class Key, class Compare, class Allocator>
207 operator==(const set<Key, Compare, Allocator>& x,
208 const set<Key, Compare, Allocator>& y);
210 template <class Key, class Compare, class Allocator>
212 operator< (const set<Key, Compare, Allocator>& x,
213 const set<Key, Compare, Allocator>& y);
215 template <class Key, class Compare, class Allocator>
217 operator!=(const set<Key, Compare, Allocator>& x,
218 const set<Key, Compare, Allocator>& y);
220 template <class Key, class Compare, class Allocator>
222 operator> (const set<Key, Compare, Allocator>& x,
223 const set<Key, Compare, Allocator>& y);
225 template <class Key, class Compare, class Allocator>
227 operator>=(const set<Key, Compare, Allocator>& x,
228 const set<Key, Compare, Allocator>& y);
230 template <class Key, class Compare, class Allocator>
232 operator<=(const set<Key, Compare, Allocator>& x,
233 const set<Key, Compare, Allocator>& y);
235 // specialized algorithms:
236 template <class Key, class Compare, class Allocator>
238 swap(set<Key, Compare, Allocator>& x, set<Key, Compare, Allocator>& y)
239 noexcept(noexcept(x.swap(y)));
241 template <class Key, class Compare, class Allocator, class Predicate>
242 typename set<Key, Compare, Allocator>::size_type
243 erase_if(set<Key, Compare, Allocator>& c, Predicate pred); // C++20
245 template <class Key, class Compare = less<Key>,
246 class Allocator = allocator<Key>>
251 typedef Key key_type;
252 typedef key_type value_type;
253 typedef Compare key_compare;
254 typedef key_compare value_compare;
255 typedef Allocator allocator_type;
256 typedef typename allocator_type::reference reference;
257 typedef typename allocator_type::const_reference const_reference;
258 typedef typename allocator_type::size_type size_type;
259 typedef typename allocator_type::difference_type difference_type;
260 typedef typename allocator_type::pointer pointer;
261 typedef typename allocator_type::const_pointer const_pointer;
263 typedef implementation-defined iterator;
264 typedef implementation-defined const_iterator;
265 typedef std::reverse_iterator<iterator> reverse_iterator;
266 typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
267 typedef unspecified node_type; // C++17
269 // construct/copy/destroy:
272 is_nothrow_default_constructible<allocator_type>::value &&
273 is_nothrow_default_constructible<key_compare>::value &&
274 is_nothrow_copy_constructible<key_compare>::value);
275 explicit multiset(const value_compare& comp);
276 multiset(const value_compare& comp, const allocator_type& a);
277 template <class InputIterator>
278 multiset(InputIterator first, InputIterator last,
279 const value_compare& comp = value_compare());
280 template <class InputIterator>
281 multiset(InputIterator first, InputIterator last,
282 const value_compare& comp, const allocator_type& a);
283 multiset(const multiset& s);
284 multiset(multiset&& s)
286 is_nothrow_move_constructible<allocator_type>::value &&
287 is_nothrow_move_constructible<key_compare>::value);
288 explicit multiset(const allocator_type& a);
289 multiset(const multiset& s, const allocator_type& a);
290 multiset(multiset&& s, const allocator_type& a);
291 multiset(initializer_list<value_type> il, const value_compare& comp = value_compare());
292 multiset(initializer_list<value_type> il, const value_compare& comp,
293 const allocator_type& a);
294 template <class InputIterator>
295 multiset(InputIterator first, InputIterator last, const allocator_type& a)
296 : set(first, last, Compare(), a) {} // C++14
297 multiset(initializer_list<value_type> il, const allocator_type& a)
298 : set(il, Compare(), a) {} // C++14
301 multiset& operator=(const multiset& s);
302 multiset& operator=(multiset&& s)
304 allocator_type::propagate_on_container_move_assignment::value &&
305 is_nothrow_move_assignable<allocator_type>::value &&
306 is_nothrow_move_assignable<key_compare>::value);
307 multiset& operator=(initializer_list<value_type> il);
310 iterator begin() noexcept;
311 const_iterator begin() const noexcept;
312 iterator end() noexcept;
313 const_iterator end() const noexcept;
315 reverse_iterator rbegin() noexcept;
316 const_reverse_iterator rbegin() const noexcept;
317 reverse_iterator rend() noexcept;
318 const_reverse_iterator rend() const noexcept;
320 const_iterator cbegin() const noexcept;
321 const_iterator cend() const noexcept;
322 const_reverse_iterator crbegin() const noexcept;
323 const_reverse_iterator crend() const noexcept;
326 bool empty() const noexcept;
327 size_type size() const noexcept;
328 size_type max_size() const noexcept;
331 template <class... Args>
332 iterator emplace(Args&&... args);
333 template <class... Args>
334 iterator emplace_hint(const_iterator position, Args&&... args);
335 iterator insert(const value_type& v);
336 iterator insert(value_type&& v);
337 iterator insert(const_iterator position, const value_type& v);
338 iterator insert(const_iterator position, value_type&& v);
339 template <class InputIterator>
340 void insert(InputIterator first, InputIterator last);
341 void insert(initializer_list<value_type> il);
343 node_type extract(const_iterator position); // C++17
344 node_type extract(const key_type& x); // C++17
345 iterator insert(node_type&& nh); // C++17
346 iterator insert(const_iterator hint, node_type&& nh); // C++17
348 iterator erase(const_iterator position);
349 iterator erase(iterator position); // C++14
350 size_type erase(const key_type& k);
351 iterator erase(const_iterator first, const_iterator last);
352 void clear() noexcept;
355 void merge(multiset<Key, C2, Allocator>& source); // C++17
357 void merge(multiset<Key, C2, Allocator>&& source); // C++17
359 void merge(set<Key, C2, Allocator>& source); // C++17
361 void merge(set<Key, C2, Allocator>&& source); // C++17
363 void swap(multiset& s)
365 __is_nothrow_swappable<key_compare>::value &&
366 (!allocator_type::propagate_on_container_swap::value ||
367 __is_nothrow_swappable<allocator_type>::value));
370 allocator_type get_allocator() const noexcept;
371 key_compare key_comp() const;
372 value_compare value_comp() const;
375 iterator find(const key_type& k);
376 const_iterator find(const key_type& k) const;
378 iterator find(const K& x);
380 const_iterator find(const K& x) const; // C++14
383 size_type count(const K& x) const; // C++14
384 size_type count(const key_type& k) const;
386 bool contains(const key_type& x) const; // C++20
387 template<class K> bool contains(const K& x) const; // C++20
389 iterator lower_bound(const key_type& k);
390 const_iterator lower_bound(const key_type& k) const;
392 iterator lower_bound(const K& x); // C++14
394 const_iterator lower_bound(const K& x) const; // C++14
396 iterator upper_bound(const key_type& k);
397 const_iterator upper_bound(const key_type& k) const;
399 iterator upper_bound(const K& x); // C++14
401 const_iterator upper_bound(const K& x) const; // C++14
403 pair<iterator,iterator> equal_range(const key_type& k);
404 pair<const_iterator,const_iterator> equal_range(const key_type& k) const;
406 pair<iterator,iterator> equal_range(const K& x); // C++14
408 pair<const_iterator,const_iterator> equal_range(const K& x) const; // C++14
411 template <class InputIterator,
412 class Compare = less<typename iterator_traits<InputIterator>::value_type>,
413 class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
414 multiset(InputIterator, InputIterator,
415 Compare = Compare(), Allocator = Allocator())
416 -> multiset<typename iterator_traits<InputIterator>::value_type, Compare, Allocator>; // C++17
418 template<class Key, class Compare = less<Key>, class Allocator = allocator<Key>>
419 multiset(initializer_list<Key>, Compare = Compare(), Allocator = Allocator())
420 -> multiset<Key, Compare, Allocator>; // C++17
422 template<class InputIterator, class Allocator>
423 multiset(InputIterator, InputIterator, Allocator)
424 -> multiset<typename iterator_traits<InputIterator>::value_type,
425 less<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17
427 template<class Key, class Allocator>
428 multiset(initializer_list<Key>, Allocator) -> multiset<Key, less<Key>, Allocator>; // C++17
430 template <class Key, class Compare, class Allocator>
432 operator==(const multiset<Key, Compare, Allocator>& x,
433 const multiset<Key, Compare, Allocator>& y);
435 template <class Key, class Compare, class Allocator>
437 operator< (const multiset<Key, Compare, Allocator>& x,
438 const multiset<Key, Compare, Allocator>& y);
440 template <class Key, class Compare, class Allocator>
442 operator!=(const multiset<Key, Compare, Allocator>& x,
443 const multiset<Key, Compare, Allocator>& y);
445 template <class Key, class Compare, class Allocator>
447 operator> (const multiset<Key, Compare, Allocator>& x,
448 const multiset<Key, Compare, Allocator>& y);
450 template <class Key, class Compare, class Allocator>
452 operator>=(const multiset<Key, Compare, Allocator>& x,
453 const multiset<Key, Compare, Allocator>& y);
455 template <class Key, class Compare, class Allocator>
457 operator<=(const multiset<Key, Compare, Allocator>& x,
458 const multiset<Key, Compare, Allocator>& y);
460 // specialized algorithms:
461 template <class Key, class Compare, class Allocator>
463 swap(multiset<Key, Compare, Allocator>& x, multiset<Key, Compare, Allocator>& y)
464 noexcept(noexcept(x.swap(y)));
466 template <class Key, class Compare, class Allocator, class Predicate>
467 typename multiset<Key, Compare, Allocator>::size_type
468 erase_if(multiset<Key, Compare, Allocator>& c, Predicate pred); // C++20
476 #include <__functional/is_transparent.h>
477 #include <__iterator/iterator_traits.h>
478 #include <__node_handle>
480 #include <__utility/forward.h>
482 #include <functional>
483 #include <initializer_list>
484 #include <iterator> // __libcpp_erase_if_container
487 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
488 #pragma GCC system_header
491 _LIBCPP_BEGIN_NAMESPACE_STD
493 template <class _Key, class _Compare, class _Allocator>
496 template <class _Key, class _Compare = less<_Key>,
497 class _Allocator = allocator<_Key> >
498 class _LIBCPP_TEMPLATE_VIS set
502 typedef _Key key_type;
503 typedef key_type value_type;
504 typedef __identity_t<_Compare> key_compare;
505 typedef key_compare value_compare;
506 typedef __identity_t<_Allocator> allocator_type;
507 typedef value_type& reference;
508 typedef const value_type& const_reference;
510 static_assert((is_same<typename allocator_type::value_type, value_type>::value),
511 "Allocator::value_type must be same type as value_type");
514 typedef __tree<value_type, value_compare, allocator_type> __base;
515 typedef allocator_traits<allocator_type> __alloc_traits;
520 typedef typename __base::pointer pointer;
521 typedef typename __base::const_pointer const_pointer;
522 typedef typename __base::size_type size_type;
523 typedef typename __base::difference_type difference_type;
524 typedef typename __base::const_iterator iterator;
525 typedef typename __base::const_iterator const_iterator;
526 typedef _VSTD::reverse_iterator<iterator> reverse_iterator;
527 typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator;
529 #if _LIBCPP_STD_VER > 14
530 typedef __set_node_handle<typename __base::__node, allocator_type> node_type;
531 typedef __insert_return_type<iterator, node_type> insert_return_type;
534 template <class _Key2, class _Compare2, class _Alloc2>
535 friend class _LIBCPP_TEMPLATE_VIS set;
536 template <class _Key2, class _Compare2, class _Alloc2>
537 friend class _LIBCPP_TEMPLATE_VIS multiset;
539 _LIBCPP_INLINE_VISIBILITY
542 is_nothrow_default_constructible<allocator_type>::value &&
543 is_nothrow_default_constructible<key_compare>::value &&
544 is_nothrow_copy_constructible<key_compare>::value)
545 : __tree_(value_compare()) {}
547 _LIBCPP_INLINE_VISIBILITY
548 explicit set(const value_compare& __comp)
550 is_nothrow_default_constructible<allocator_type>::value &&
551 is_nothrow_copy_constructible<key_compare>::value)
554 _LIBCPP_INLINE_VISIBILITY
555 explicit set(const value_compare& __comp, const allocator_type& __a)
556 : __tree_(__comp, __a) {}
557 template <class _InputIterator>
558 _LIBCPP_INLINE_VISIBILITY
559 set(_InputIterator __f, _InputIterator __l,
560 const value_compare& __comp = value_compare())
566 template <class _InputIterator>
567 _LIBCPP_INLINE_VISIBILITY
568 set(_InputIterator __f, _InputIterator __l, const value_compare& __comp,
569 const allocator_type& __a)
570 : __tree_(__comp, __a)
575 #if _LIBCPP_STD_VER > 11
576 template <class _InputIterator>
577 _LIBCPP_INLINE_VISIBILITY
578 set(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
579 : set(__f, __l, key_compare(), __a) {}
582 _LIBCPP_INLINE_VISIBILITY
584 : __tree_(__s.__tree_)
586 insert(__s.begin(), __s.end());
589 _LIBCPP_INLINE_VISIBILITY
590 set& operator=(const set& __s)
592 __tree_ = __s.__tree_;
596 #ifndef _LIBCPP_CXX03_LANG
597 _LIBCPP_INLINE_VISIBILITY
599 _NOEXCEPT_(is_nothrow_move_constructible<__base>::value)
600 : __tree_(_VSTD::move(__s.__tree_)) {}
601 #endif // _LIBCPP_CXX03_LANG
603 _LIBCPP_INLINE_VISIBILITY
604 explicit set(const allocator_type& __a)
607 _LIBCPP_INLINE_VISIBILITY
608 set(const set& __s, const allocator_type& __a)
609 : __tree_(__s.__tree_.value_comp(), __a)
611 insert(__s.begin(), __s.end());
614 #ifndef _LIBCPP_CXX03_LANG
615 set(set&& __s, const allocator_type& __a);
617 _LIBCPP_INLINE_VISIBILITY
618 set(initializer_list<value_type> __il, const value_compare& __comp = value_compare())
621 insert(__il.begin(), __il.end());
624 _LIBCPP_INLINE_VISIBILITY
625 set(initializer_list<value_type> __il, const value_compare& __comp,
626 const allocator_type& __a)
627 : __tree_(__comp, __a)
629 insert(__il.begin(), __il.end());
632 #if _LIBCPP_STD_VER > 11
633 _LIBCPP_INLINE_VISIBILITY
634 set(initializer_list<value_type> __il, const allocator_type& __a)
635 : set(__il, key_compare(), __a) {}
638 _LIBCPP_INLINE_VISIBILITY
639 set& operator=(initializer_list<value_type> __il)
641 __tree_.__assign_unique(__il.begin(), __il.end());
645 _LIBCPP_INLINE_VISIBILITY
646 set& operator=(set&& __s)
647 _NOEXCEPT_(is_nothrow_move_assignable<__base>::value)
649 __tree_ = _VSTD::move(__s.__tree_);
652 #endif // _LIBCPP_CXX03_LANG
654 _LIBCPP_INLINE_VISIBILITY
656 static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), "");
659 _LIBCPP_INLINE_VISIBILITY
660 iterator begin() _NOEXCEPT {return __tree_.begin();}
661 _LIBCPP_INLINE_VISIBILITY
662 const_iterator begin() const _NOEXCEPT {return __tree_.begin();}
663 _LIBCPP_INLINE_VISIBILITY
664 iterator end() _NOEXCEPT {return __tree_.end();}
665 _LIBCPP_INLINE_VISIBILITY
666 const_iterator end() const _NOEXCEPT {return __tree_.end();}
668 _LIBCPP_INLINE_VISIBILITY
669 reverse_iterator rbegin() _NOEXCEPT
670 {return reverse_iterator(end());}
671 _LIBCPP_INLINE_VISIBILITY
672 const_reverse_iterator rbegin() const _NOEXCEPT
673 {return const_reverse_iterator(end());}
674 _LIBCPP_INLINE_VISIBILITY
675 reverse_iterator rend() _NOEXCEPT
676 {return reverse_iterator(begin());}
677 _LIBCPP_INLINE_VISIBILITY
678 const_reverse_iterator rend() const _NOEXCEPT
679 {return const_reverse_iterator(begin());}
681 _LIBCPP_INLINE_VISIBILITY
682 const_iterator cbegin() const _NOEXCEPT {return begin();}
683 _LIBCPP_INLINE_VISIBILITY
684 const_iterator cend() const _NOEXCEPT {return end();}
685 _LIBCPP_INLINE_VISIBILITY
686 const_reverse_iterator crbegin() const _NOEXCEPT {return rbegin();}
687 _LIBCPP_INLINE_VISIBILITY
688 const_reverse_iterator crend() const _NOEXCEPT {return rend();}
690 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
691 bool empty() const _NOEXCEPT {return __tree_.size() == 0;}
692 _LIBCPP_INLINE_VISIBILITY
693 size_type size() const _NOEXCEPT {return __tree_.size();}
694 _LIBCPP_INLINE_VISIBILITY
695 size_type max_size() const _NOEXCEPT {return __tree_.max_size();}
698 #ifndef _LIBCPP_CXX03_LANG
699 template <class... _Args>
700 _LIBCPP_INLINE_VISIBILITY
701 pair<iterator, bool> emplace(_Args&&... __args)
702 {return __tree_.__emplace_unique(_VSTD::forward<_Args>(__args)...);}
703 template <class... _Args>
704 _LIBCPP_INLINE_VISIBILITY
705 iterator emplace_hint(const_iterator __p, _Args&&... __args)
706 {return __tree_.__emplace_hint_unique(__p, _VSTD::forward<_Args>(__args)...);}
707 #endif // _LIBCPP_CXX03_LANG
709 _LIBCPP_INLINE_VISIBILITY
710 pair<iterator,bool> insert(const value_type& __v)
711 {return __tree_.__insert_unique(__v);}
712 _LIBCPP_INLINE_VISIBILITY
713 iterator insert(const_iterator __p, const value_type& __v)
714 {return __tree_.__insert_unique(__p, __v);}
716 template <class _InputIterator>
717 _LIBCPP_INLINE_VISIBILITY
718 void insert(_InputIterator __f, _InputIterator __l)
720 for (const_iterator __e = cend(); __f != __l; ++__f)
721 __tree_.__insert_unique(__e, *__f);
724 #ifndef _LIBCPP_CXX03_LANG
725 _LIBCPP_INLINE_VISIBILITY
726 pair<iterator,bool> insert(value_type&& __v)
727 {return __tree_.__insert_unique(_VSTD::move(__v));}
729 _LIBCPP_INLINE_VISIBILITY
730 iterator insert(const_iterator __p, value_type&& __v)
731 {return __tree_.__insert_unique(__p, _VSTD::move(__v));}
733 _LIBCPP_INLINE_VISIBILITY
734 void insert(initializer_list<value_type> __il)
735 {insert(__il.begin(), __il.end());}
736 #endif // _LIBCPP_CXX03_LANG
738 _LIBCPP_INLINE_VISIBILITY
739 iterator erase(const_iterator __p) {return __tree_.erase(__p);}
740 _LIBCPP_INLINE_VISIBILITY
741 size_type erase(const key_type& __k)
742 {return __tree_.__erase_unique(__k);}
743 _LIBCPP_INLINE_VISIBILITY
744 iterator erase(const_iterator __f, const_iterator __l)
745 {return __tree_.erase(__f, __l);}
746 _LIBCPP_INLINE_VISIBILITY
747 void clear() _NOEXCEPT {__tree_.clear();}
749 #if _LIBCPP_STD_VER > 14
750 _LIBCPP_INLINE_VISIBILITY
751 insert_return_type insert(node_type&& __nh)
753 _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(),
754 "node_type with incompatible allocator passed to set::insert()");
755 return __tree_.template __node_handle_insert_unique<
756 node_type, insert_return_type>(_VSTD::move(__nh));
758 _LIBCPP_INLINE_VISIBILITY
759 iterator insert(const_iterator __hint, node_type&& __nh)
761 _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(),
762 "node_type with incompatible allocator passed to set::insert()");
763 return __tree_.template __node_handle_insert_unique<node_type>(
764 __hint, _VSTD::move(__nh));
766 _LIBCPP_INLINE_VISIBILITY
767 node_type extract(key_type const& __key)
769 return __tree_.template __node_handle_extract<node_type>(__key);
771 _LIBCPP_INLINE_VISIBILITY
772 node_type extract(const_iterator __it)
774 return __tree_.template __node_handle_extract<node_type>(__it);
776 template <class _Compare2>
777 _LIBCPP_INLINE_VISIBILITY
778 void merge(set<key_type, _Compare2, allocator_type>& __source)
780 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
781 "merging container with incompatible allocator");
782 __tree_.__node_handle_merge_unique(__source.__tree_);
784 template <class _Compare2>
785 _LIBCPP_INLINE_VISIBILITY
786 void merge(set<key_type, _Compare2, allocator_type>&& __source)
788 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
789 "merging container with incompatible allocator");
790 __tree_.__node_handle_merge_unique(__source.__tree_);
792 template <class _Compare2>
793 _LIBCPP_INLINE_VISIBILITY
794 void merge(multiset<key_type, _Compare2, allocator_type>& __source)
796 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
797 "merging container with incompatible allocator");
798 __tree_.__node_handle_merge_unique(__source.__tree_);
800 template <class _Compare2>
801 _LIBCPP_INLINE_VISIBILITY
802 void merge(multiset<key_type, _Compare2, allocator_type>&& __source)
804 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
805 "merging container with incompatible allocator");
806 __tree_.__node_handle_merge_unique(__source.__tree_);
810 _LIBCPP_INLINE_VISIBILITY
811 void swap(set& __s) _NOEXCEPT_(__is_nothrow_swappable<__base>::value)
812 {__tree_.swap(__s.__tree_);}
814 _LIBCPP_INLINE_VISIBILITY
815 allocator_type get_allocator() const _NOEXCEPT {return __tree_.__alloc();}
816 _LIBCPP_INLINE_VISIBILITY
817 key_compare key_comp() const {return __tree_.value_comp();}
818 _LIBCPP_INLINE_VISIBILITY
819 value_compare value_comp() const {return __tree_.value_comp();}
822 _LIBCPP_INLINE_VISIBILITY
823 iterator find(const key_type& __k) {return __tree_.find(__k);}
824 _LIBCPP_INLINE_VISIBILITY
825 const_iterator find(const key_type& __k) const {return __tree_.find(__k);}
826 #if _LIBCPP_STD_VER > 11
827 template <typename _K2>
828 _LIBCPP_INLINE_VISIBILITY
829 typename enable_if<__is_transparent<_Compare, _K2>::value,iterator>::type
830 find(const _K2& __k) {return __tree_.find(__k);}
831 template <typename _K2>
832 _LIBCPP_INLINE_VISIBILITY
833 typename enable_if<__is_transparent<_Compare, _K2>::value,const_iterator>::type
834 find(const _K2& __k) const {return __tree_.find(__k);}
837 _LIBCPP_INLINE_VISIBILITY
838 size_type count(const key_type& __k) const
839 {return __tree_.__count_unique(__k);}
840 #if _LIBCPP_STD_VER > 11
841 template <typename _K2>
842 _LIBCPP_INLINE_VISIBILITY
843 typename enable_if<__is_transparent<_Compare, _K2>::value,size_type>::type
844 count(const _K2& __k) const {return __tree_.__count_multi(__k);}
847 #if _LIBCPP_STD_VER > 17
848 _LIBCPP_INLINE_VISIBILITY
849 bool contains(const key_type& __k) const {return find(__k) != end();}
850 template <typename _K2>
851 _LIBCPP_INLINE_VISIBILITY
852 typename enable_if<__is_transparent<_Compare, _K2>::value, bool>::type
853 contains(const _K2& __k) const { return find(__k) != end(); }
854 #endif // _LIBCPP_STD_VER > 17
856 _LIBCPP_INLINE_VISIBILITY
857 iterator lower_bound(const key_type& __k)
858 {return __tree_.lower_bound(__k);}
859 _LIBCPP_INLINE_VISIBILITY
860 const_iterator lower_bound(const key_type& __k) const
861 {return __tree_.lower_bound(__k);}
862 #if _LIBCPP_STD_VER > 11
863 template <typename _K2>
864 _LIBCPP_INLINE_VISIBILITY
865 typename enable_if<__is_transparent<_Compare, _K2>::value,iterator>::type
866 lower_bound(const _K2& __k) {return __tree_.lower_bound(__k);}
868 template <typename _K2>
869 _LIBCPP_INLINE_VISIBILITY
870 typename enable_if<__is_transparent<_Compare, _K2>::value,const_iterator>::type
871 lower_bound(const _K2& __k) const {return __tree_.lower_bound(__k);}
874 _LIBCPP_INLINE_VISIBILITY
875 iterator upper_bound(const key_type& __k)
876 {return __tree_.upper_bound(__k);}
877 _LIBCPP_INLINE_VISIBILITY
878 const_iterator upper_bound(const key_type& __k) const
879 {return __tree_.upper_bound(__k);}
880 #if _LIBCPP_STD_VER > 11
881 template <typename _K2>
882 _LIBCPP_INLINE_VISIBILITY
883 typename enable_if<__is_transparent<_Compare, _K2>::value,iterator>::type
884 upper_bound(const _K2& __k) {return __tree_.upper_bound(__k);}
885 template <typename _K2>
886 _LIBCPP_INLINE_VISIBILITY
887 typename enable_if<__is_transparent<_Compare, _K2>::value,const_iterator>::type
888 upper_bound(const _K2& __k) const {return __tree_.upper_bound(__k);}
891 _LIBCPP_INLINE_VISIBILITY
892 pair<iterator,iterator> equal_range(const key_type& __k)
893 {return __tree_.__equal_range_unique(__k);}
894 _LIBCPP_INLINE_VISIBILITY
895 pair<const_iterator,const_iterator> equal_range(const key_type& __k) const
896 {return __tree_.__equal_range_unique(__k);}
897 #if _LIBCPP_STD_VER > 11
898 template <typename _K2>
899 _LIBCPP_INLINE_VISIBILITY
900 typename enable_if<__is_transparent<_Compare, _K2>::value,pair<iterator,iterator>>::type
901 equal_range(const _K2& __k) {return __tree_.__equal_range_multi(__k);}
902 template <typename _K2>
903 _LIBCPP_INLINE_VISIBILITY
904 typename enable_if<__is_transparent<_Compare, _K2>::value,pair<const_iterator,const_iterator>>::type
905 equal_range(const _K2& __k) const {return __tree_.__equal_range_multi(__k);}
909 #if _LIBCPP_STD_VER >= 17
910 template<class _InputIterator,
911 class _Compare = less<__iter_value_type<_InputIterator>>,
912 class _Allocator = allocator<__iter_value_type<_InputIterator>>,
913 class = enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value, void>,
914 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
915 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
916 set(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
917 -> set<__iter_value_type<_InputIterator>, _Compare, _Allocator>;
919 template<class _Key, class _Compare = less<_Key>,
920 class _Allocator = allocator<_Key>,
921 class = enable_if_t<!__is_allocator<_Compare>::value, void>,
922 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
923 set(initializer_list<_Key>, _Compare = _Compare(), _Allocator = _Allocator())
924 -> set<_Key, _Compare, _Allocator>;
926 template<class _InputIterator, class _Allocator,
927 class = enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value, void>,
928 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
929 set(_InputIterator, _InputIterator, _Allocator)
930 -> set<__iter_value_type<_InputIterator>,
931 less<__iter_value_type<_InputIterator>>, _Allocator>;
933 template<class _Key, class _Allocator,
934 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
935 set(initializer_list<_Key>, _Allocator)
936 -> set<_Key, less<_Key>, _Allocator>;
939 #ifndef _LIBCPP_CXX03_LANG
941 template <class _Key, class _Compare, class _Allocator>
942 set<_Key, _Compare, _Allocator>::set(set&& __s, const allocator_type& __a)
943 : __tree_(_VSTD::move(__s.__tree_), __a)
945 if (__a != __s.get_allocator())
947 const_iterator __e = cend();
949 insert(__e, _VSTD::move(__s.__tree_.remove(__s.begin())->__value_));
953 #endif // _LIBCPP_CXX03_LANG
955 template <class _Key, class _Compare, class _Allocator>
956 inline _LIBCPP_INLINE_VISIBILITY
958 operator==(const set<_Key, _Compare, _Allocator>& __x,
959 const set<_Key, _Compare, _Allocator>& __y)
961 return __x.size() == __y.size() && _VSTD::equal(__x.begin(), __x.end(), __y.begin());
964 template <class _Key, class _Compare, class _Allocator>
965 inline _LIBCPP_INLINE_VISIBILITY
967 operator< (const set<_Key, _Compare, _Allocator>& __x,
968 const set<_Key, _Compare, _Allocator>& __y)
970 return _VSTD::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
973 template <class _Key, class _Compare, class _Allocator>
974 inline _LIBCPP_INLINE_VISIBILITY
976 operator!=(const set<_Key, _Compare, _Allocator>& __x,
977 const set<_Key, _Compare, _Allocator>& __y)
979 return !(__x == __y);
982 template <class _Key, class _Compare, class _Allocator>
983 inline _LIBCPP_INLINE_VISIBILITY
985 operator> (const set<_Key, _Compare, _Allocator>& __x,
986 const set<_Key, _Compare, _Allocator>& __y)
991 template <class _Key, class _Compare, class _Allocator>
992 inline _LIBCPP_INLINE_VISIBILITY
994 operator>=(const set<_Key, _Compare, _Allocator>& __x,
995 const set<_Key, _Compare, _Allocator>& __y)
1000 template <class _Key, class _Compare, class _Allocator>
1001 inline _LIBCPP_INLINE_VISIBILITY
1003 operator<=(const set<_Key, _Compare, _Allocator>& __x,
1004 const set<_Key, _Compare, _Allocator>& __y)
1006 return !(__y < __x);
1009 // specialized algorithms:
1010 template <class _Key, class _Compare, class _Allocator>
1011 inline _LIBCPP_INLINE_VISIBILITY
1013 swap(set<_Key, _Compare, _Allocator>& __x,
1014 set<_Key, _Compare, _Allocator>& __y)
1015 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
1020 #if _LIBCPP_STD_VER > 17
1021 template <class _Key, class _Compare, class _Allocator, class _Predicate>
1022 inline _LIBCPP_INLINE_VISIBILITY
1023 typename set<_Key, _Compare, _Allocator>::size_type
1024 erase_if(set<_Key, _Compare, _Allocator>& __c, _Predicate __pred) {
1025 return _VSTD::__libcpp_erase_if_container(__c, __pred);
1029 template <class _Key, class _Compare = less<_Key>,
1030 class _Allocator = allocator<_Key> >
1031 class _LIBCPP_TEMPLATE_VIS multiset
1035 typedef _Key key_type;
1036 typedef key_type value_type;
1037 typedef __identity_t<_Compare> key_compare;
1038 typedef key_compare value_compare;
1039 typedef __identity_t<_Allocator> allocator_type;
1040 typedef value_type& reference;
1041 typedef const value_type& const_reference;
1043 static_assert((is_same<typename allocator_type::value_type, value_type>::value),
1044 "Allocator::value_type must be same type as value_type");
1047 typedef __tree<value_type, value_compare, allocator_type> __base;
1048 typedef allocator_traits<allocator_type> __alloc_traits;
1053 typedef typename __base::pointer pointer;
1054 typedef typename __base::const_pointer const_pointer;
1055 typedef typename __base::size_type size_type;
1056 typedef typename __base::difference_type difference_type;
1057 typedef typename __base::const_iterator iterator;
1058 typedef typename __base::const_iterator const_iterator;
1059 typedef _VSTD::reverse_iterator<iterator> reverse_iterator;
1060 typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator;
1062 #if _LIBCPP_STD_VER > 14
1063 typedef __set_node_handle<typename __base::__node, allocator_type> node_type;
1066 template <class _Key2, class _Compare2, class _Alloc2>
1067 friend class _LIBCPP_TEMPLATE_VIS set;
1068 template <class _Key2, class _Compare2, class _Alloc2>
1069 friend class _LIBCPP_TEMPLATE_VIS multiset;
1071 // construct/copy/destroy:
1072 _LIBCPP_INLINE_VISIBILITY
1075 is_nothrow_default_constructible<allocator_type>::value &&
1076 is_nothrow_default_constructible<key_compare>::value &&
1077 is_nothrow_copy_constructible<key_compare>::value)
1078 : __tree_(value_compare()) {}
1080 _LIBCPP_INLINE_VISIBILITY
1081 explicit multiset(const value_compare& __comp)
1083 is_nothrow_default_constructible<allocator_type>::value &&
1084 is_nothrow_copy_constructible<key_compare>::value)
1085 : __tree_(__comp) {}
1087 _LIBCPP_INLINE_VISIBILITY
1088 explicit multiset(const value_compare& __comp, const allocator_type& __a)
1089 : __tree_(__comp, __a) {}
1090 template <class _InputIterator>
1091 _LIBCPP_INLINE_VISIBILITY
1092 multiset(_InputIterator __f, _InputIterator __l,
1093 const value_compare& __comp = value_compare())
1099 #if _LIBCPP_STD_VER > 11
1100 template <class _InputIterator>
1101 _LIBCPP_INLINE_VISIBILITY
1102 multiset(_InputIterator __f, _InputIterator __l, const allocator_type& __a)
1103 : multiset(__f, __l, key_compare(), __a) {}
1106 template <class _InputIterator>
1107 _LIBCPP_INLINE_VISIBILITY
1108 multiset(_InputIterator __f, _InputIterator __l,
1109 const value_compare& __comp, const allocator_type& __a)
1110 : __tree_(__comp, __a)
1115 _LIBCPP_INLINE_VISIBILITY
1116 multiset(const multiset& __s)
1117 : __tree_(__s.__tree_.value_comp(),
1118 __alloc_traits::select_on_container_copy_construction(__s.__tree_.__alloc()))
1120 insert(__s.begin(), __s.end());
1123 _LIBCPP_INLINE_VISIBILITY
1124 multiset& operator=(const multiset& __s)
1126 __tree_ = __s.__tree_;
1130 #ifndef _LIBCPP_CXX03_LANG
1131 _LIBCPP_INLINE_VISIBILITY
1132 multiset(multiset&& __s)
1133 _NOEXCEPT_(is_nothrow_move_constructible<__base>::value)
1134 : __tree_(_VSTD::move(__s.__tree_)) {}
1136 multiset(multiset&& __s, const allocator_type& __a);
1137 #endif // _LIBCPP_CXX03_LANG
1138 _LIBCPP_INLINE_VISIBILITY
1139 explicit multiset(const allocator_type& __a)
1141 _LIBCPP_INLINE_VISIBILITY
1142 multiset(const multiset& __s, const allocator_type& __a)
1143 : __tree_(__s.__tree_.value_comp(), __a)
1145 insert(__s.begin(), __s.end());
1148 #ifndef _LIBCPP_CXX03_LANG
1149 _LIBCPP_INLINE_VISIBILITY
1150 multiset(initializer_list<value_type> __il, const value_compare& __comp = value_compare())
1153 insert(__il.begin(), __il.end());
1156 _LIBCPP_INLINE_VISIBILITY
1157 multiset(initializer_list<value_type> __il, const value_compare& __comp,
1158 const allocator_type& __a)
1159 : __tree_(__comp, __a)
1161 insert(__il.begin(), __il.end());
1164 #if _LIBCPP_STD_VER > 11
1165 _LIBCPP_INLINE_VISIBILITY
1166 multiset(initializer_list<value_type> __il, const allocator_type& __a)
1167 : multiset(__il, key_compare(), __a) {}
1170 _LIBCPP_INLINE_VISIBILITY
1171 multiset& operator=(initializer_list<value_type> __il)
1173 __tree_.__assign_multi(__il.begin(), __il.end());
1177 _LIBCPP_INLINE_VISIBILITY
1178 multiset& operator=(multiset&& __s)
1179 _NOEXCEPT_(is_nothrow_move_assignable<__base>::value)
1181 __tree_ = _VSTD::move(__s.__tree_);
1184 #endif // _LIBCPP_CXX03_LANG
1186 _LIBCPP_INLINE_VISIBILITY
1188 static_assert(sizeof(__diagnose_non_const_comparator<_Key, _Compare>()), "");
1191 _LIBCPP_INLINE_VISIBILITY
1192 iterator begin() _NOEXCEPT {return __tree_.begin();}
1193 _LIBCPP_INLINE_VISIBILITY
1194 const_iterator begin() const _NOEXCEPT {return __tree_.begin();}
1195 _LIBCPP_INLINE_VISIBILITY
1196 iterator end() _NOEXCEPT {return __tree_.end();}
1197 _LIBCPP_INLINE_VISIBILITY
1198 const_iterator end() const _NOEXCEPT {return __tree_.end();}
1200 _LIBCPP_INLINE_VISIBILITY
1201 reverse_iterator rbegin() _NOEXCEPT
1202 {return reverse_iterator(end());}
1203 _LIBCPP_INLINE_VISIBILITY
1204 const_reverse_iterator rbegin() const _NOEXCEPT
1205 {return const_reverse_iterator(end());}
1206 _LIBCPP_INLINE_VISIBILITY
1207 reverse_iterator rend() _NOEXCEPT
1208 {return reverse_iterator(begin());}
1209 _LIBCPP_INLINE_VISIBILITY
1210 const_reverse_iterator rend() const _NOEXCEPT
1211 {return const_reverse_iterator(begin());}
1213 _LIBCPP_INLINE_VISIBILITY
1214 const_iterator cbegin() const _NOEXCEPT {return begin();}
1215 _LIBCPP_INLINE_VISIBILITY
1216 const_iterator cend() const _NOEXCEPT {return end();}
1217 _LIBCPP_INLINE_VISIBILITY
1218 const_reverse_iterator crbegin() const _NOEXCEPT {return rbegin();}
1219 _LIBCPP_INLINE_VISIBILITY
1220 const_reverse_iterator crend() const _NOEXCEPT {return rend();}
1222 _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
1223 bool empty() const _NOEXCEPT {return __tree_.size() == 0;}
1224 _LIBCPP_INLINE_VISIBILITY
1225 size_type size() const _NOEXCEPT {return __tree_.size();}
1226 _LIBCPP_INLINE_VISIBILITY
1227 size_type max_size() const _NOEXCEPT {return __tree_.max_size();}
1230 #ifndef _LIBCPP_CXX03_LANG
1231 template <class... _Args>
1232 _LIBCPP_INLINE_VISIBILITY
1233 iterator emplace(_Args&&... __args)
1234 {return __tree_.__emplace_multi(_VSTD::forward<_Args>(__args)...);}
1235 template <class... _Args>
1236 _LIBCPP_INLINE_VISIBILITY
1237 iterator emplace_hint(const_iterator __p, _Args&&... __args)
1238 {return __tree_.__emplace_hint_multi(__p, _VSTD::forward<_Args>(__args)...);}
1239 #endif // _LIBCPP_CXX03_LANG
1241 _LIBCPP_INLINE_VISIBILITY
1242 iterator insert(const value_type& __v)
1243 {return __tree_.__insert_multi(__v);}
1244 _LIBCPP_INLINE_VISIBILITY
1245 iterator insert(const_iterator __p, const value_type& __v)
1246 {return __tree_.__insert_multi(__p, __v);}
1248 template <class _InputIterator>
1249 _LIBCPP_INLINE_VISIBILITY
1250 void insert(_InputIterator __f, _InputIterator __l)
1252 for (const_iterator __e = cend(); __f != __l; ++__f)
1253 __tree_.__insert_multi(__e, *__f);
1256 #ifndef _LIBCPP_CXX03_LANG
1257 _LIBCPP_INLINE_VISIBILITY
1258 iterator insert(value_type&& __v)
1259 {return __tree_.__insert_multi(_VSTD::move(__v));}
1261 _LIBCPP_INLINE_VISIBILITY
1262 iterator insert(const_iterator __p, value_type&& __v)
1263 {return __tree_.__insert_multi(__p, _VSTD::move(__v));}
1265 _LIBCPP_INLINE_VISIBILITY
1266 void insert(initializer_list<value_type> __il)
1267 {insert(__il.begin(), __il.end());}
1268 #endif // _LIBCPP_CXX03_LANG
1270 _LIBCPP_INLINE_VISIBILITY
1271 iterator erase(const_iterator __p) {return __tree_.erase(__p);}
1272 _LIBCPP_INLINE_VISIBILITY
1273 size_type erase(const key_type& __k) {return __tree_.__erase_multi(__k);}
1274 _LIBCPP_INLINE_VISIBILITY
1275 iterator erase(const_iterator __f, const_iterator __l)
1276 {return __tree_.erase(__f, __l);}
1277 _LIBCPP_INLINE_VISIBILITY
1278 void clear() _NOEXCEPT {__tree_.clear();}
1280 #if _LIBCPP_STD_VER > 14
1281 _LIBCPP_INLINE_VISIBILITY
1282 iterator insert(node_type&& __nh)
1284 _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(),
1285 "node_type with incompatible allocator passed to multiset::insert()");
1286 return __tree_.template __node_handle_insert_multi<node_type>(
1289 _LIBCPP_INLINE_VISIBILITY
1290 iterator insert(const_iterator __hint, node_type&& __nh)
1292 _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(),
1293 "node_type with incompatible allocator passed to multiset::insert()");
1294 return __tree_.template __node_handle_insert_multi<node_type>(
1295 __hint, _VSTD::move(__nh));
1297 _LIBCPP_INLINE_VISIBILITY
1298 node_type extract(key_type const& __key)
1300 return __tree_.template __node_handle_extract<node_type>(__key);
1302 _LIBCPP_INLINE_VISIBILITY
1303 node_type extract(const_iterator __it)
1305 return __tree_.template __node_handle_extract<node_type>(__it);
1307 template <class _Compare2>
1308 _LIBCPP_INLINE_VISIBILITY
1309 void merge(multiset<key_type, _Compare2, allocator_type>& __source)
1311 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
1312 "merging container with incompatible allocator");
1313 __tree_.__node_handle_merge_multi(__source.__tree_);
1315 template <class _Compare2>
1316 _LIBCPP_INLINE_VISIBILITY
1317 void merge(multiset<key_type, _Compare2, allocator_type>&& __source)
1319 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
1320 "merging container with incompatible allocator");
1321 __tree_.__node_handle_merge_multi(__source.__tree_);
1323 template <class _Compare2>
1324 _LIBCPP_INLINE_VISIBILITY
1325 void merge(set<key_type, _Compare2, allocator_type>& __source)
1327 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
1328 "merging container with incompatible allocator");
1329 __tree_.__node_handle_merge_multi(__source.__tree_);
1331 template <class _Compare2>
1332 _LIBCPP_INLINE_VISIBILITY
1333 void merge(set<key_type, _Compare2, allocator_type>&& __source)
1335 _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(),
1336 "merging container with incompatible allocator");
1337 __tree_.__node_handle_merge_multi(__source.__tree_);
1341 _LIBCPP_INLINE_VISIBILITY
1342 void swap(multiset& __s)
1343 _NOEXCEPT_(__is_nothrow_swappable<__base>::value)
1344 {__tree_.swap(__s.__tree_);}
1346 _LIBCPP_INLINE_VISIBILITY
1347 allocator_type get_allocator() const _NOEXCEPT {return __tree_.__alloc();}
1348 _LIBCPP_INLINE_VISIBILITY
1349 key_compare key_comp() const {return __tree_.value_comp();}
1350 _LIBCPP_INLINE_VISIBILITY
1351 value_compare value_comp() const {return __tree_.value_comp();}
1354 _LIBCPP_INLINE_VISIBILITY
1355 iterator find(const key_type& __k) {return __tree_.find(__k);}
1356 _LIBCPP_INLINE_VISIBILITY
1357 const_iterator find(const key_type& __k) const {return __tree_.find(__k);}
1358 #if _LIBCPP_STD_VER > 11
1359 template <typename _K2>
1360 _LIBCPP_INLINE_VISIBILITY
1361 typename enable_if<__is_transparent<_Compare, _K2>::value,iterator>::type
1362 find(const _K2& __k) {return __tree_.find(__k);}
1363 template <typename _K2>
1364 _LIBCPP_INLINE_VISIBILITY
1365 typename enable_if<__is_transparent<_Compare, _K2>::value,const_iterator>::type
1366 find(const _K2& __k) const {return __tree_.find(__k);}
1369 _LIBCPP_INLINE_VISIBILITY
1370 size_type count(const key_type& __k) const
1371 {return __tree_.__count_multi(__k);}
1372 #if _LIBCPP_STD_VER > 11
1373 template <typename _K2>
1374 _LIBCPP_INLINE_VISIBILITY
1375 typename enable_if<__is_transparent<_Compare, _K2>::value,size_type>::type
1376 count(const _K2& __k) const {return __tree_.__count_multi(__k);}
1379 #if _LIBCPP_STD_VER > 17
1380 _LIBCPP_INLINE_VISIBILITY
1381 bool contains(const key_type& __k) const {return find(__k) != end();}
1382 template <typename _K2>
1383 _LIBCPP_INLINE_VISIBILITY
1384 typename enable_if<__is_transparent<_Compare, _K2>::value, bool>::type
1385 contains(const _K2& __k) const { return find(__k) != end(); }
1386 #endif // _LIBCPP_STD_VER > 17
1388 _LIBCPP_INLINE_VISIBILITY
1389 iterator lower_bound(const key_type& __k)
1390 {return __tree_.lower_bound(__k);}
1391 _LIBCPP_INLINE_VISIBILITY
1392 const_iterator lower_bound(const key_type& __k) const
1393 {return __tree_.lower_bound(__k);}
1394 #if _LIBCPP_STD_VER > 11
1395 template <typename _K2>
1396 _LIBCPP_INLINE_VISIBILITY
1397 typename enable_if<__is_transparent<_Compare, _K2>::value,iterator>::type
1398 lower_bound(const _K2& __k) {return __tree_.lower_bound(__k);}
1400 template <typename _K2>
1401 _LIBCPP_INLINE_VISIBILITY
1402 typename enable_if<__is_transparent<_Compare, _K2>::value,const_iterator>::type
1403 lower_bound(const _K2& __k) const {return __tree_.lower_bound(__k);}
1406 _LIBCPP_INLINE_VISIBILITY
1407 iterator upper_bound(const key_type& __k)
1408 {return __tree_.upper_bound(__k);}
1409 _LIBCPP_INLINE_VISIBILITY
1410 const_iterator upper_bound(const key_type& __k) const
1411 {return __tree_.upper_bound(__k);}
1412 #if _LIBCPP_STD_VER > 11
1413 template <typename _K2>
1414 _LIBCPP_INLINE_VISIBILITY
1415 typename enable_if<__is_transparent<_Compare, _K2>::value,iterator>::type
1416 upper_bound(const _K2& __k) {return __tree_.upper_bound(__k);}
1417 template <typename _K2>
1418 _LIBCPP_INLINE_VISIBILITY
1419 typename enable_if<__is_transparent<_Compare, _K2>::value,const_iterator>::type
1420 upper_bound(const _K2& __k) const {return __tree_.upper_bound(__k);}
1423 _LIBCPP_INLINE_VISIBILITY
1424 pair<iterator,iterator> equal_range(const key_type& __k)
1425 {return __tree_.__equal_range_multi(__k);}
1426 _LIBCPP_INLINE_VISIBILITY
1427 pair<const_iterator,const_iterator> equal_range(const key_type& __k) const
1428 {return __tree_.__equal_range_multi(__k);}
1429 #if _LIBCPP_STD_VER > 11
1430 template <typename _K2>
1431 _LIBCPP_INLINE_VISIBILITY
1432 typename enable_if<__is_transparent<_Compare, _K2>::value,pair<iterator,iterator>>::type
1433 equal_range(const _K2& __k) {return __tree_.__equal_range_multi(__k);}
1434 template <typename _K2>
1435 _LIBCPP_INLINE_VISIBILITY
1436 typename enable_if<__is_transparent<_Compare, _K2>::value,pair<const_iterator,const_iterator>>::type
1437 equal_range(const _K2& __k) const {return __tree_.__equal_range_multi(__k);}
1441 #if _LIBCPP_STD_VER >= 17
1442 template<class _InputIterator,
1443 class _Compare = less<__iter_value_type<_InputIterator>>,
1444 class _Allocator = allocator<__iter_value_type<_InputIterator>>,
1445 class = enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value, void>,
1446 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
1447 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
1448 multiset(_InputIterator, _InputIterator, _Compare = _Compare(), _Allocator = _Allocator())
1449 -> multiset<__iter_value_type<_InputIterator>, _Compare, _Allocator>;
1451 template<class _Key, class _Compare = less<_Key>,
1452 class _Allocator = allocator<_Key>,
1453 class = enable_if_t<__is_allocator<_Allocator>::value, void>,
1454 class = enable_if_t<!__is_allocator<_Compare>::value, void>>
1455 multiset(initializer_list<_Key>, _Compare = _Compare(), _Allocator = _Allocator())
1456 -> multiset<_Key, _Compare, _Allocator>;
1458 template<class _InputIterator, class _Allocator,
1459 class = enable_if_t<__is_cpp17_input_iterator<_InputIterator>::value, void>,
1460 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1461 multiset(_InputIterator, _InputIterator, _Allocator)
1462 -> multiset<__iter_value_type<_InputIterator>,
1463 less<__iter_value_type<_InputIterator>>, _Allocator>;
1465 template<class _Key, class _Allocator,
1466 class = enable_if_t<__is_allocator<_Allocator>::value, void>>
1467 multiset(initializer_list<_Key>, _Allocator)
1468 -> multiset<_Key, less<_Key>, _Allocator>;
1471 #ifndef _LIBCPP_CXX03_LANG
1473 template <class _Key, class _Compare, class _Allocator>
1474 multiset<_Key, _Compare, _Allocator>::multiset(multiset&& __s, const allocator_type& __a)
1475 : __tree_(_VSTD::move(__s.__tree_), __a)
1477 if (__a != __s.get_allocator())
1479 const_iterator __e = cend();
1480 while (!__s.empty())
1481 insert(__e, _VSTD::move(__s.__tree_.remove(__s.begin())->__value_));
1485 #endif // _LIBCPP_CXX03_LANG
1487 template <class _Key, class _Compare, class _Allocator>
1488 inline _LIBCPP_INLINE_VISIBILITY
1490 operator==(const multiset<_Key, _Compare, _Allocator>& __x,
1491 const multiset<_Key, _Compare, _Allocator>& __y)
1493 return __x.size() == __y.size() && _VSTD::equal(__x.begin(), __x.end(), __y.begin());
1496 template <class _Key, class _Compare, class _Allocator>
1497 inline _LIBCPP_INLINE_VISIBILITY
1499 operator< (const multiset<_Key, _Compare, _Allocator>& __x,
1500 const multiset<_Key, _Compare, _Allocator>& __y)
1502 return _VSTD::lexicographical_compare(__x.begin(), __x.end(), __y.begin(), __y.end());
1505 template <class _Key, class _Compare, class _Allocator>
1506 inline _LIBCPP_INLINE_VISIBILITY
1508 operator!=(const multiset<_Key, _Compare, _Allocator>& __x,
1509 const multiset<_Key, _Compare, _Allocator>& __y)
1511 return !(__x == __y);
1514 template <class _Key, class _Compare, class _Allocator>
1515 inline _LIBCPP_INLINE_VISIBILITY
1517 operator> (const multiset<_Key, _Compare, _Allocator>& __x,
1518 const multiset<_Key, _Compare, _Allocator>& __y)
1523 template <class _Key, class _Compare, class _Allocator>
1524 inline _LIBCPP_INLINE_VISIBILITY
1526 operator>=(const multiset<_Key, _Compare, _Allocator>& __x,
1527 const multiset<_Key, _Compare, _Allocator>& __y)
1529 return !(__x < __y);
1532 template <class _Key, class _Compare, class _Allocator>
1533 inline _LIBCPP_INLINE_VISIBILITY
1535 operator<=(const multiset<_Key, _Compare, _Allocator>& __x,
1536 const multiset<_Key, _Compare, _Allocator>& __y)
1538 return !(__y < __x);
1541 template <class _Key, class _Compare, class _Allocator>
1542 inline _LIBCPP_INLINE_VISIBILITY
1544 swap(multiset<_Key, _Compare, _Allocator>& __x,
1545 multiset<_Key, _Compare, _Allocator>& __y)
1546 _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
1551 #if _LIBCPP_STD_VER > 17
1552 template <class _Key, class _Compare, class _Allocator, class _Predicate>
1553 inline _LIBCPP_INLINE_VISIBILITY
1554 typename multiset<_Key, _Compare, _Allocator>::size_type
1555 erase_if(multiset<_Key, _Compare, _Allocator>& __c, _Predicate __pred) {
1556 return _VSTD::__libcpp_erase_if_container(__c, __pred);
1560 _LIBCPP_END_NAMESPACE_STD
1562 #endif // _LIBCPP_SET