2 //===-------------------------- hash_map ----------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 #ifndef _LIBCPP_HASH_MAP
12 #define _LIBCPP_HASH_MAP
21 template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
22 class Alloc = allocator<pair<const Key, T>>>
28 typedef T mapped_type;
30 typedef Pred key_equal;
31 typedef Alloc allocator_type;
32 typedef pair<const key_type, mapped_type> value_type;
33 typedef value_type& reference;
34 typedef const value_type& const_reference;
35 typedef typename allocator_traits<allocator_type>::pointer pointer;
36 typedef typename allocator_traits<allocator_type>::const_pointer const_pointer;
37 typedef typename allocator_traits<allocator_type>::size_type size_type;
38 typedef typename allocator_traits<allocator_type>::difference_type difference_type;
40 typedef /unspecified/ iterator;
41 typedef /unspecified/ const_iterator;
43 explicit hash_map(size_type n = 193, const hasher& hf = hasher(),
44 const key_equal& eql = key_equal(),
45 const allocator_type& a = allocator_type());
46 template <class InputIterator>
47 hash_map(InputIterator f, InputIterator l,
48 size_type n = 193, const hasher& hf = hasher(),
49 const key_equal& eql = key_equal(),
50 const allocator_type& a = allocator_type());
51 hash_map(const hash_map&);
53 hash_map& operator=(const hash_map&);
55 allocator_type get_allocator() const;
58 size_type size() const;
59 size_type max_size() const;
63 const_iterator begin() const;
64 const_iterator end() const;
66 pair<iterator, bool> insert(const value_type& obj);
67 template <class InputIterator>
68 void insert(InputIterator first, InputIterator last);
70 void erase(const_iterator position);
71 size_type erase(const key_type& k);
72 void erase(const_iterator first, const_iterator last);
77 hasher hash_funct() const;
78 key_equal key_eq() const;
80 iterator find(const key_type& k);
81 const_iterator find(const key_type& k) const;
82 size_type count(const key_type& k) const;
83 pair<iterator, iterator> equal_range(const key_type& k);
84 pair<const_iterator, const_iterator> equal_range(const key_type& k) const;
86 mapped_type& operator[](const key_type& k);
88 size_type bucket_count() const;
89 size_type max_bucket_count() const;
91 size_type elems_in_bucket(size_type n) const;
93 void resize(size_type n);
96 template <class Key, class T, class Hash, class Pred, class Alloc>
97 void swap(hash_map<Key, T, Hash, Pred, Alloc>& x,
98 hash_map<Key, T, Hash, Pred, Alloc>& y);
100 template <class Key, class T, class Hash, class Pred, class Alloc>
102 operator==(const hash_map<Key, T, Hash, Pred, Alloc>& x,
103 const hash_map<Key, T, Hash, Pred, Alloc>& y);
105 template <class Key, class T, class Hash, class Pred, class Alloc>
107 operator!=(const hash_map<Key, T, Hash, Pred, Alloc>& x,
108 const hash_map<Key, T, Hash, Pred, Alloc>& y);
110 template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
111 class Alloc = allocator<pair<const Key, T>>>
116 typedef Key key_type;
117 typedef T mapped_type;
119 typedef Pred key_equal;
120 typedef Alloc allocator_type;
121 typedef pair<const key_type, mapped_type> value_type;
122 typedef value_type& reference;
123 typedef const value_type& const_reference;
124 typedef typename allocator_traits<allocator_type>::pointer pointer;
125 typedef typename allocator_traits<allocator_type>::const_pointer const_pointer;
126 typedef typename allocator_traits<allocator_type>::size_type size_type;
127 typedef typename allocator_traits<allocator_type>::difference_type difference_type;
129 typedef /unspecified/ iterator;
130 typedef /unspecified/ const_iterator;
132 explicit hash_multimap(size_type n = 193, const hasher& hf = hasher(),
133 const key_equal& eql = key_equal(),
134 const allocator_type& a = allocator_type());
135 template <class InputIterator>
136 hash_multimap(InputIterator f, InputIterator l,
137 size_type n = 193, const hasher& hf = hasher(),
138 const key_equal& eql = key_equal(),
139 const allocator_type& a = allocator_type());
140 explicit hash_multimap(const allocator_type&);
141 hash_multimap(const hash_multimap&);
143 hash_multimap& operator=(const hash_multimap&);
145 allocator_type get_allocator() const;
148 size_type size() const;
149 size_type max_size() const;
153 const_iterator begin() const;
154 const_iterator end() const;
156 iterator insert(const value_type& obj);
157 template <class InputIterator>
158 void insert(InputIterator first, InputIterator last);
160 void erase(const_iterator position);
161 size_type erase(const key_type& k);
162 void erase(const_iterator first, const_iterator last);
165 void swap(hash_multimap&);
167 hasher hash_funct() const;
168 key_equal key_eq() const;
170 iterator find(const key_type& k);
171 const_iterator find(const key_type& k) const;
172 size_type count(const key_type& k) const;
173 pair<iterator, iterator> equal_range(const key_type& k);
174 pair<const_iterator, const_iterator> equal_range(const key_type& k) const;
176 size_type bucket_count() const;
177 size_type max_bucket_count() const;
179 size_type elems_in_bucket(size_type n) const;
181 void resize(size_type n);
184 template <class Key, class T, class Hash, class Pred, class Alloc>
185 void swap(hash_multimap<Key, T, Hash, Pred, Alloc>& x,
186 hash_multimap<Key, T, Hash, Pred, Alloc>& y);
188 template <class Key, class T, class Hash, class Pred, class Alloc>
190 operator==(const hash_multimap<Key, T, Hash, Pred, Alloc>& x,
191 const hash_multimap<Key, T, Hash, Pred, Alloc>& y);
193 template <class Key, class T, class Hash, class Pred, class Alloc>
195 operator!=(const hash_multimap<Key, T, Hash, Pred, Alloc>& x,
196 const hash_multimap<Key, T, Hash, Pred, Alloc>& y);
203 #include <__hash_table>
204 #include <functional>
206 #include <type_traits>
207 #include <ext/__hash>
210 #if defined(_MSC_VER) && ! defined(__clang__)
211 _LIBCPP_WARNING("Use of the header <ext/hash_map> is deprecated. Migrate to <unordered_map>")
213 # warning Use of the header <ext/hash_map> is deprecated. Migrate to <unordered_map>
217 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
218 #pragma GCC system_header
221 namespace __gnu_cxx {
225 template <class _Tp, class _Hash,
226 bool = is_empty<_Hash>::value && !__libcpp_is_final<_Hash>::value
228 class __hash_map_hasher
232 _LIBCPP_INLINE_VISIBILITY __hash_map_hasher() : _Hash() {}
233 _LIBCPP_INLINE_VISIBILITY __hash_map_hasher(const _Hash& __h) : _Hash(__h) {}
234 _LIBCPP_INLINE_VISIBILITY const _Hash& hash_function() const {return *this;}
235 _LIBCPP_INLINE_VISIBILITY
236 size_t operator()(const _Tp& __x) const
237 {return static_cast<const _Hash&>(*this)(__x.first);}
238 _LIBCPP_INLINE_VISIBILITY
239 size_t operator()(const typename _Tp::first_type& __x) const
240 {return static_cast<const _Hash&>(*this)(__x);}
243 template <class _Tp, class _Hash>
244 class __hash_map_hasher<_Tp, _Hash, false>
248 _LIBCPP_INLINE_VISIBILITY __hash_map_hasher() : __hash_() {}
249 _LIBCPP_INLINE_VISIBILITY __hash_map_hasher(const _Hash& __h) : __hash_(__h) {}
250 _LIBCPP_INLINE_VISIBILITY const _Hash& hash_function() const {return __hash_;}
251 _LIBCPP_INLINE_VISIBILITY
252 size_t operator()(const _Tp& __x) const
253 {return __hash_(__x.first);}
254 _LIBCPP_INLINE_VISIBILITY
255 size_t operator()(const typename _Tp::first_type& __x) const
256 {return __hash_(__x);}
259 template <class _Tp, class _Pred,
260 bool = is_empty<_Pred>::value && !__libcpp_is_final<_Pred>::value
262 class __hash_map_equal
266 _LIBCPP_INLINE_VISIBILITY __hash_map_equal() : _Pred() {}
267 _LIBCPP_INLINE_VISIBILITY __hash_map_equal(const _Pred& __p) : _Pred(__p) {}
268 _LIBCPP_INLINE_VISIBILITY const _Pred& key_eq() const {return *this;}
269 _LIBCPP_INLINE_VISIBILITY
270 bool operator()(const _Tp& __x, const _Tp& __y) const
271 {return static_cast<const _Pred&>(*this)(__x.first, __y.first);}
272 _LIBCPP_INLINE_VISIBILITY
273 bool operator()(const typename _Tp::first_type& __x, const _Tp& __y) const
274 {return static_cast<const _Pred&>(*this)(__x, __y.first);}
275 _LIBCPP_INLINE_VISIBILITY
276 bool operator()(const _Tp& __x, const typename _Tp::first_type& __y) const
277 {return static_cast<const _Pred&>(*this)(__x.first, __y);}
278 _LIBCPP_INLINE_VISIBILITY
279 bool operator()(const typename _Tp::first_type& __x,
280 const typename _Tp::first_type& __y) const
281 {return static_cast<const _Pred&>(*this)(__x, __y);}
284 template <class _Tp, class _Pred>
285 class __hash_map_equal<_Tp, _Pred, false>
289 _LIBCPP_INLINE_VISIBILITY __hash_map_equal() : __pred_() {}
290 _LIBCPP_INLINE_VISIBILITY __hash_map_equal(const _Pred& __p) : __pred_(__p) {}
291 _LIBCPP_INLINE_VISIBILITY const _Pred& key_eq() const {return __pred_;}
292 _LIBCPP_INLINE_VISIBILITY
293 bool operator()(const _Tp& __x, const _Tp& __y) const
294 {return __pred_(__x.first, __y.first);}
295 _LIBCPP_INLINE_VISIBILITY
296 bool operator()(const typename _Tp::first_type& __x, const _Tp& __y) const
297 {return __pred_(__x, __y.first);}
298 _LIBCPP_INLINE_VISIBILITY
299 bool operator()(const _Tp& __x, const typename _Tp::first_type& __y) const
300 {return __pred_(__x.first, __y);}
301 _LIBCPP_INLINE_VISIBILITY
302 bool operator()(const typename _Tp::first_type& __x,
303 const typename _Tp::first_type& __y) const
304 {return __pred_(__x, __y);}
307 template <class _Alloc>
308 class __hash_map_node_destructor
310 typedef _Alloc allocator_type;
311 typedef allocator_traits<allocator_type> __alloc_traits;
312 typedef typename __alloc_traits::value_type::value_type value_type;
314 typedef typename __alloc_traits::pointer pointer;
316 typedef typename value_type::first_type first_type;
317 typedef typename value_type::second_type second_type;
319 allocator_type& __na_;
321 __hash_map_node_destructor& operator=(const __hash_map_node_destructor&);
324 bool __first_constructed;
325 bool __second_constructed;
327 _LIBCPP_INLINE_VISIBILITY
328 explicit __hash_map_node_destructor(allocator_type& __na)
330 __first_constructed(false),
331 __second_constructed(false)
334 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
335 _LIBCPP_INLINE_VISIBILITY
336 __hash_map_node_destructor(__hash_node_destructor<allocator_type>&& __x)
338 __first_constructed(__x.__value_constructed),
339 __second_constructed(__x.__value_constructed)
341 __x.__value_constructed = false;
343 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
344 _LIBCPP_INLINE_VISIBILITY
345 __hash_map_node_destructor(const __hash_node_destructor<allocator_type>& __x)
347 __first_constructed(__x.__value_constructed),
348 __second_constructed(__x.__value_constructed)
350 const_cast<bool&>(__x.__value_constructed) = false;
352 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
354 _LIBCPP_INLINE_VISIBILITY
355 void operator()(pointer __p)
357 if (__second_constructed)
358 __alloc_traits::destroy(__na_, _VSTD::addressof(__p->__value_.second));
359 if (__first_constructed)
360 __alloc_traits::destroy(__na_, _VSTD::addressof(__p->__value_.first));
362 __alloc_traits::deallocate(__na_, __p, 1);
366 template <class _HashIterator>
367 class _LIBCPP_TYPE_VIS_ONLY __hash_map_iterator
371 typedef pointer_traits<typename _HashIterator::pointer> __pointer_traits;
372 typedef const typename _HashIterator::value_type::first_type key_type;
373 typedef typename _HashIterator::value_type::second_type mapped_type;
375 typedef forward_iterator_tag iterator_category;
376 typedef pair<key_type, mapped_type> value_type;
377 typedef typename _HashIterator::difference_type difference_type;
378 typedef value_type& reference;
379 typedef typename __pointer_traits::template
380 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
383 rebind<value_type>::other
387 _LIBCPP_INLINE_VISIBILITY __hash_map_iterator() {}
389 _LIBCPP_INLINE_VISIBILITY __hash_map_iterator(_HashIterator __i) : __i_(__i) {}
391 _LIBCPP_INLINE_VISIBILITY reference operator*() const {return *operator->();}
392 _LIBCPP_INLINE_VISIBILITY pointer operator->() const {return (pointer)__i_.operator->();}
394 _LIBCPP_INLINE_VISIBILITY __hash_map_iterator& operator++() {++__i_; return *this;}
395 _LIBCPP_INLINE_VISIBILITY
396 __hash_map_iterator operator++(int)
398 __hash_map_iterator __t(*this);
403 friend _LIBCPP_INLINE_VISIBILITY
404 bool operator==(const __hash_map_iterator& __x, const __hash_map_iterator& __y)
405 {return __x.__i_ == __y.__i_;}
406 friend _LIBCPP_INLINE_VISIBILITY
407 bool operator!=(const __hash_map_iterator& __x, const __hash_map_iterator& __y)
408 {return __x.__i_ != __y.__i_;}
410 template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY hash_map;
411 template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY hash_multimap;
412 template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_const_iterator;
413 template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_const_local_iterator;
414 template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_map_const_iterator;
417 template <class _HashIterator>
418 class _LIBCPP_TYPE_VIS_ONLY __hash_map_const_iterator
422 typedef pointer_traits<typename _HashIterator::pointer> __pointer_traits;
423 typedef const typename _HashIterator::value_type::first_type key_type;
424 typedef typename _HashIterator::value_type::second_type mapped_type;
426 typedef forward_iterator_tag iterator_category;
427 typedef pair<key_type, mapped_type> value_type;
428 typedef typename _HashIterator::difference_type difference_type;
429 typedef const value_type& reference;
430 typedef typename __pointer_traits::template
431 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
432 rebind<const value_type>
434 rebind<const value_type>::other
438 _LIBCPP_INLINE_VISIBILITY __hash_map_const_iterator() {}
440 _LIBCPP_INLINE_VISIBILITY
441 __hash_map_const_iterator(_HashIterator __i) : __i_(__i) {}
442 _LIBCPP_INLINE_VISIBILITY
443 __hash_map_const_iterator(
444 __hash_map_iterator<typename _HashIterator::__non_const_iterator> __i)
447 _LIBCPP_INLINE_VISIBILITY
448 reference operator*() const {return *operator->();}
449 _LIBCPP_INLINE_VISIBILITY
450 pointer operator->() const {return (pointer)__i_.operator->();}
452 _LIBCPP_INLINE_VISIBILITY
453 __hash_map_const_iterator& operator++() {++__i_; return *this;}
454 _LIBCPP_INLINE_VISIBILITY
455 __hash_map_const_iterator operator++(int)
457 __hash_map_const_iterator __t(*this);
462 friend _LIBCPP_INLINE_VISIBILITY
463 bool operator==(const __hash_map_const_iterator& __x, const __hash_map_const_iterator& __y)
464 {return __x.__i_ == __y.__i_;}
465 friend _LIBCPP_INLINE_VISIBILITY
466 bool operator!=(const __hash_map_const_iterator& __x, const __hash_map_const_iterator& __y)
467 {return __x.__i_ != __y.__i_;}
469 template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY hash_map;
470 template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY hash_multimap;
471 template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_const_iterator;
472 template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_const_local_iterator;
475 template <class _Key, class _Tp, class _Hash = hash<_Key>, class _Pred = equal_to<_Key>,
476 class _Alloc = allocator<pair<const _Key, _Tp> > >
477 class _LIBCPP_TYPE_VIS_ONLY hash_map
481 typedef _Key key_type;
482 typedef _Tp mapped_type;
483 typedef _Tp data_type;
484 typedef _Hash hasher;
485 typedef _Pred key_equal;
486 typedef _Alloc allocator_type;
487 typedef pair<const key_type, mapped_type> value_type;
488 typedef value_type& reference;
489 typedef const value_type& const_reference;
492 typedef pair<key_type, mapped_type> __value_type;
493 typedef __hash_map_hasher<__value_type, hasher> __hasher;
494 typedef __hash_map_equal<__value_type, key_equal> __key_equal;
495 typedef typename __rebind_alloc_helper<allocator_traits<allocator_type>, __value_type>::type __allocator_type;
497 typedef __hash_table<__value_type, __hasher,
498 __key_equal, __allocator_type> __table;
502 typedef typename __table::__node_pointer __node_pointer;
503 typedef typename __table::__node_const_pointer __node_const_pointer;
504 typedef typename __table::__node_traits __node_traits;
505 typedef typename __table::__node_allocator __node_allocator;
506 typedef typename __table::__node __node;
507 typedef __hash_map_node_destructor<__node_allocator> _Dp;
508 typedef unique_ptr<__node, _Dp> __node_holder;
509 typedef allocator_traits<allocator_type> __alloc_traits;
511 typedef typename __alloc_traits::pointer pointer;
512 typedef typename __alloc_traits::const_pointer const_pointer;
513 typedef typename __alloc_traits::size_type size_type;
514 typedef typename __alloc_traits::difference_type difference_type;
516 typedef __hash_map_iterator<typename __table::iterator> iterator;
517 typedef __hash_map_const_iterator<typename __table::const_iterator> const_iterator;
519 _LIBCPP_INLINE_VISIBILITY hash_map() {__table_.rehash(193);}
520 explicit hash_map(size_type __n, const hasher& __hf = hasher(),
521 const key_equal& __eql = key_equal());
522 hash_map(size_type __n, const hasher& __hf,
523 const key_equal& __eql,
524 const allocator_type& __a);
525 template <class _InputIterator>
526 hash_map(_InputIterator __first, _InputIterator __last);
527 template <class _InputIterator>
528 hash_map(_InputIterator __first, _InputIterator __last,
529 size_type __n, const hasher& __hf = hasher(),
530 const key_equal& __eql = key_equal());
531 template <class _InputIterator>
532 hash_map(_InputIterator __first, _InputIterator __last,
533 size_type __n, const hasher& __hf,
534 const key_equal& __eql,
535 const allocator_type& __a);
536 hash_map(const hash_map& __u);
538 _LIBCPP_INLINE_VISIBILITY
539 allocator_type get_allocator() const
540 {return allocator_type(__table_.__node_alloc());}
542 _LIBCPP_INLINE_VISIBILITY
543 bool empty() const {return __table_.size() == 0;}
544 _LIBCPP_INLINE_VISIBILITY
545 size_type size() const {return __table_.size();}
546 _LIBCPP_INLINE_VISIBILITY
547 size_type max_size() const {return __table_.max_size();}
549 _LIBCPP_INLINE_VISIBILITY
550 iterator begin() {return __table_.begin();}
551 _LIBCPP_INLINE_VISIBILITY
552 iterator end() {return __table_.end();}
553 _LIBCPP_INLINE_VISIBILITY
554 const_iterator begin() const {return __table_.begin();}
555 _LIBCPP_INLINE_VISIBILITY
556 const_iterator end() const {return __table_.end();}
558 _LIBCPP_INLINE_VISIBILITY
559 pair<iterator, bool> insert(const value_type& __x)
560 {return __table_.__insert_unique(__x);}
561 _LIBCPP_INLINE_VISIBILITY
562 iterator insert(const_iterator, const value_type& __x) {return insert(__x).first;}
563 template <class _InputIterator>
564 void insert(_InputIterator __first, _InputIterator __last);
566 _LIBCPP_INLINE_VISIBILITY
567 void erase(const_iterator __p) {__table_.erase(__p.__i_);}
568 _LIBCPP_INLINE_VISIBILITY
569 size_type erase(const key_type& __k) {return __table_.__erase_unique(__k);}
570 _LIBCPP_INLINE_VISIBILITY
571 void erase(const_iterator __first, const_iterator __last)
572 {__table_.erase(__first.__i_, __last.__i_);}
573 _LIBCPP_INLINE_VISIBILITY
574 void clear() {__table_.clear();}
576 _LIBCPP_INLINE_VISIBILITY
577 void swap(hash_map& __u) {__table_.swap(__u.__table_);}
579 _LIBCPP_INLINE_VISIBILITY
580 hasher hash_funct() const
581 {return __table_.hash_function().hash_function();}
582 _LIBCPP_INLINE_VISIBILITY
583 key_equal key_eq() const
584 {return __table_.key_eq().key_eq();}
586 _LIBCPP_INLINE_VISIBILITY
587 iterator find(const key_type& __k) {return __table_.find(__k);}
588 _LIBCPP_INLINE_VISIBILITY
589 const_iterator find(const key_type& __k) const {return __table_.find(__k);}
590 _LIBCPP_INLINE_VISIBILITY
591 size_type count(const key_type& __k) const {return __table_.__count_unique(__k);}
592 _LIBCPP_INLINE_VISIBILITY
593 pair<iterator, iterator> equal_range(const key_type& __k)
594 {return __table_.__equal_range_unique(__k);}
595 _LIBCPP_INLINE_VISIBILITY
596 pair<const_iterator, const_iterator> equal_range(const key_type& __k) const
597 {return __table_.__equal_range_unique(__k);}
599 mapped_type& operator[](const key_type& __k);
601 _LIBCPP_INLINE_VISIBILITY
602 size_type bucket_count() const {return __table_.bucket_count();}
603 _LIBCPP_INLINE_VISIBILITY
604 size_type max_bucket_count() const {return __table_.max_bucket_count();}
606 _LIBCPP_INLINE_VISIBILITY
607 size_type elems_in_bucket(size_type __n) const
608 {return __table_.bucket_size(__n);}
610 _LIBCPP_INLINE_VISIBILITY
611 void resize(size_type __n) {__table_.rehash(__n);}
614 __node_holder __construct_node(const key_type& __k);
617 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
618 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_map(
619 size_type __n, const hasher& __hf, const key_equal& __eql)
620 : __table_(__hf, __eql)
622 __table_.rehash(__n);
625 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
626 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_map(
627 size_type __n, const hasher& __hf, const key_equal& __eql,
628 const allocator_type& __a)
629 : __table_(__hf, __eql, __a)
631 __table_.rehash(__n);
634 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
635 template <class _InputIterator>
636 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_map(
637 _InputIterator __first, _InputIterator __last)
639 __table_.rehash(193);
640 insert(__first, __last);
643 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
644 template <class _InputIterator>
645 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_map(
646 _InputIterator __first, _InputIterator __last, size_type __n,
647 const hasher& __hf, const key_equal& __eql)
648 : __table_(__hf, __eql)
650 __table_.rehash(__n);
651 insert(__first, __last);
654 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
655 template <class _InputIterator>
656 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_map(
657 _InputIterator __first, _InputIterator __last, size_type __n,
658 const hasher& __hf, const key_equal& __eql, const allocator_type& __a)
659 : __table_(__hf, __eql, __a)
661 __table_.rehash(__n);
662 insert(__first, __last);
665 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
666 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_map(
668 : __table_(__u.__table_)
670 __table_.rehash(__u.bucket_count());
671 insert(__u.begin(), __u.end());
674 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
675 typename hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::__node_holder
676 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::__construct_node(const key_type& __k)
678 __node_allocator& __na = __table_.__node_alloc();
679 __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na));
680 __node_traits::construct(__na, _VSTD::addressof(__h->__value_.first), __k);
681 __h.get_deleter().__first_constructed = true;
682 __node_traits::construct(__na, _VSTD::addressof(__h->__value_.second));
683 __h.get_deleter().__second_constructed = true;
684 return _LIBCPP_EXPLICIT_MOVE(__h); // explicitly moved for C++03
687 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
688 template <class _InputIterator>
689 inline _LIBCPP_INLINE_VISIBILITY
691 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::insert(_InputIterator __first,
692 _InputIterator __last)
694 for (; __first != __last; ++__first)
695 __table_.__insert_unique(*__first);
698 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
700 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::operator[](const key_type& __k)
702 iterator __i = find(__k);
705 __node_holder __h = __construct_node(__k);
706 pair<iterator, bool> __r = __table_.__node_insert_unique(__h.get());
708 return __r.first->second;
711 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
712 inline _LIBCPP_INLINE_VISIBILITY
714 swap(hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
715 hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
720 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
722 operator==(const hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
723 const hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
725 if (__x.size() != __y.size())
727 typedef typename hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>::const_iterator
729 for (const_iterator __i = __x.begin(), __ex = __x.end(), __ey = __y.end();
732 const_iterator __j = __y.find(__i->first);
733 if (__j == __ey || !(*__i == *__j))
739 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
740 inline _LIBCPP_INLINE_VISIBILITY
742 operator!=(const hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
743 const hash_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
745 return !(__x == __y);
748 template <class _Key, class _Tp, class _Hash = hash<_Key>, class _Pred = equal_to<_Key>,
749 class _Alloc = allocator<pair<const _Key, _Tp> > >
750 class _LIBCPP_TYPE_VIS_ONLY hash_multimap
754 typedef _Key key_type;
755 typedef _Tp mapped_type;
756 typedef _Tp data_type;
757 typedef _Hash hasher;
758 typedef _Pred key_equal;
759 typedef _Alloc allocator_type;
760 typedef pair<const key_type, mapped_type> value_type;
761 typedef value_type& reference;
762 typedef const value_type& const_reference;
765 typedef pair<key_type, mapped_type> __value_type;
766 typedef __hash_map_hasher<__value_type, hasher> __hasher;
767 typedef __hash_map_equal<__value_type, key_equal> __key_equal;
768 typedef typename __rebind_alloc_helper<allocator_traits<allocator_type>, __value_type>::type __allocator_type;
770 typedef __hash_table<__value_type, __hasher,
771 __key_equal, __allocator_type> __table;
775 typedef typename __table::__node_traits __node_traits;
776 typedef typename __table::__node_allocator __node_allocator;
777 typedef typename __table::__node __node;
778 typedef __hash_map_node_destructor<__node_allocator> _Dp;
779 typedef unique_ptr<__node, _Dp> __node_holder;
780 typedef allocator_traits<allocator_type> __alloc_traits;
782 typedef typename __alloc_traits::pointer pointer;
783 typedef typename __alloc_traits::const_pointer const_pointer;
784 typedef typename __alloc_traits::size_type size_type;
785 typedef typename __alloc_traits::difference_type difference_type;
787 typedef __hash_map_iterator<typename __table::iterator> iterator;
788 typedef __hash_map_const_iterator<typename __table::const_iterator> const_iterator;
790 _LIBCPP_INLINE_VISIBILITY
791 hash_multimap() {__table_.rehash(193);}
792 explicit hash_multimap(size_type __n, const hasher& __hf = hasher(),
793 const key_equal& __eql = key_equal());
794 hash_multimap(size_type __n, const hasher& __hf,
795 const key_equal& __eql,
796 const allocator_type& __a);
797 template <class _InputIterator>
798 hash_multimap(_InputIterator __first, _InputIterator __last);
799 template <class _InputIterator>
800 hash_multimap(_InputIterator __first, _InputIterator __last,
801 size_type __n, const hasher& __hf = hasher(),
802 const key_equal& __eql = key_equal());
803 template <class _InputIterator>
804 hash_multimap(_InputIterator __first, _InputIterator __last,
805 size_type __n, const hasher& __hf,
806 const key_equal& __eql,
807 const allocator_type& __a);
808 hash_multimap(const hash_multimap& __u);
810 _LIBCPP_INLINE_VISIBILITY
811 allocator_type get_allocator() const
812 {return allocator_type(__table_.__node_alloc());}
814 _LIBCPP_INLINE_VISIBILITY
815 bool empty() const {return __table_.size() == 0;}
816 _LIBCPP_INLINE_VISIBILITY
817 size_type size() const {return __table_.size();}
818 _LIBCPP_INLINE_VISIBILITY
819 size_type max_size() const {return __table_.max_size();}
821 _LIBCPP_INLINE_VISIBILITY
822 iterator begin() {return __table_.begin();}
823 _LIBCPP_INLINE_VISIBILITY
824 iterator end() {return __table_.end();}
825 _LIBCPP_INLINE_VISIBILITY
826 const_iterator begin() const {return __table_.begin();}
827 _LIBCPP_INLINE_VISIBILITY
828 const_iterator end() const {return __table_.end();}
830 _LIBCPP_INLINE_VISIBILITY
831 iterator insert(const value_type& __x) {return __table_.__insert_multi(__x);}
832 _LIBCPP_INLINE_VISIBILITY
833 iterator insert(const_iterator, const value_type& __x) {return insert(__x);}
834 template <class _InputIterator>
835 void insert(_InputIterator __first, _InputIterator __last);
837 _LIBCPP_INLINE_VISIBILITY
838 void erase(const_iterator __p) {__table_.erase(__p.__i_);}
839 _LIBCPP_INLINE_VISIBILITY
840 size_type erase(const key_type& __k) {return __table_.__erase_multi(__k);}
841 _LIBCPP_INLINE_VISIBILITY
842 void erase(const_iterator __first, const_iterator __last)
843 {__table_.erase(__first.__i_, __last.__i_);}
844 _LIBCPP_INLINE_VISIBILITY
845 void clear() {__table_.clear();}
847 _LIBCPP_INLINE_VISIBILITY
848 void swap(hash_multimap& __u) {__table_.swap(__u.__table_);}
850 _LIBCPP_INLINE_VISIBILITY
851 hasher hash_funct() const
852 {return __table_.hash_function().hash_function();}
853 _LIBCPP_INLINE_VISIBILITY
854 key_equal key_eq() const
855 {return __table_.key_eq().key_eq();}
857 _LIBCPP_INLINE_VISIBILITY
858 iterator find(const key_type& __k) {return __table_.find(__k);}
859 _LIBCPP_INLINE_VISIBILITY
860 const_iterator find(const key_type& __k) const {return __table_.find(__k);}
861 _LIBCPP_INLINE_VISIBILITY
862 size_type count(const key_type& __k) const {return __table_.__count_multi(__k);}
863 _LIBCPP_INLINE_VISIBILITY
864 pair<iterator, iterator> equal_range(const key_type& __k)
865 {return __table_.__equal_range_multi(__k);}
866 _LIBCPP_INLINE_VISIBILITY
867 pair<const_iterator, const_iterator> equal_range(const key_type& __k) const
868 {return __table_.__equal_range_multi(__k);}
870 _LIBCPP_INLINE_VISIBILITY
871 size_type bucket_count() const {return __table_.bucket_count();}
872 _LIBCPP_INLINE_VISIBILITY
873 size_type max_bucket_count() const {return __table_.max_bucket_count();}
875 _LIBCPP_INLINE_VISIBILITY
876 size_type elems_in_bucket(size_type __n) const
877 {return __table_.bucket_size(__n);}
879 _LIBCPP_INLINE_VISIBILITY
880 void resize(size_type __n) {__table_.rehash(__n);}
883 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
884 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_multimap(
885 size_type __n, const hasher& __hf, const key_equal& __eql)
886 : __table_(__hf, __eql)
888 __table_.rehash(__n);
891 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
892 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_multimap(
893 size_type __n, const hasher& __hf, const key_equal& __eql,
894 const allocator_type& __a)
895 : __table_(__hf, __eql, __a)
897 __table_.rehash(__n);
900 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
901 template <class _InputIterator>
902 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_multimap(
903 _InputIterator __first, _InputIterator __last)
905 __table_.rehash(193);
906 insert(__first, __last);
909 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
910 template <class _InputIterator>
911 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_multimap(
912 _InputIterator __first, _InputIterator __last, size_type __n,
913 const hasher& __hf, const key_equal& __eql)
914 : __table_(__hf, __eql)
916 __table_.rehash(__n);
917 insert(__first, __last);
920 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
921 template <class _InputIterator>
922 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_multimap(
923 _InputIterator __first, _InputIterator __last, size_type __n,
924 const hasher& __hf, const key_equal& __eql, const allocator_type& __a)
925 : __table_(__hf, __eql, __a)
927 __table_.rehash(__n);
928 insert(__first, __last);
931 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
932 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::hash_multimap(
933 const hash_multimap& __u)
934 : __table_(__u.__table_)
936 __table_.rehash(__u.bucket_count());
937 insert(__u.begin(), __u.end());
940 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
941 template <class _InputIterator>
942 inline _LIBCPP_INLINE_VISIBILITY
944 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::insert(_InputIterator __first,
945 _InputIterator __last)
947 for (; __first != __last; ++__first)
948 __table_.__insert_multi(*__first);
951 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
952 inline _LIBCPP_INLINE_VISIBILITY
954 swap(hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
955 hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
960 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
962 operator==(const hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
963 const hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
965 if (__x.size() != __y.size())
967 typedef typename hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>::const_iterator
969 typedef pair<const_iterator, const_iterator> _EqRng;
970 for (const_iterator __i = __x.begin(), __ex = __x.end(); __i != __ex;)
972 _EqRng __xeq = __x.equal_range(__i->first);
973 _EqRng __yeq = __y.equal_range(__i->first);
974 if (_VSTD::distance(__xeq.first, __xeq.second) !=
975 _VSTD::distance(__yeq.first, __yeq.second) ||
976 !_VSTD::is_permutation(__xeq.first, __xeq.second, __yeq.first))
983 template <class _Key, class _Tp, class _Hash, class _Pred, class _Alloc>
984 inline _LIBCPP_INLINE_VISIBILITY
986 operator!=(const hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
987 const hash_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
989 return !(__x == __y);
994 #endif // _LIBCPP_HASH_MAP