1 // Debugging unordered_set/unordered_multiset implementation -*- C++ -*-
3 // Copyright (C) 2003-2014 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
25 /** @file debug/unordered_set
26 * This file is a GNU debug extension to the Standard C++ Library.
29 #ifndef _GLIBCXX_DEBUG_UNORDERED_SET
30 #define _GLIBCXX_DEBUG_UNORDERED_SET 1
32 #if __cplusplus < 201103L
33 # include <bits/c++0x_warning.h>
35 # include <unordered_set>
37 #include <debug/safe_unordered_container.h>
38 #include <debug/safe_iterator.h>
39 #include <debug/safe_local_iterator.h>
41 namespace std _GLIBCXX_VISIBILITY(default)
45 /// Class std::unordered_set with safety/checking/debug instrumentation.
46 template<typename _Value,
47 typename _Hash = std::hash<_Value>,
48 typename _Pred = std::equal_to<_Value>,
49 typename _Alloc = std::allocator<_Value> >
51 : public _GLIBCXX_STD_C::unordered_set<_Value, _Hash, _Pred, _Alloc>,
52 public __gnu_debug::_Safe_unordered_container<unordered_set<_Value, _Hash,
55 typedef _GLIBCXX_STD_C::unordered_set<_Value, _Hash,
57 typedef __gnu_debug::_Safe_unordered_container<unordered_set> _Safe_base;
58 typedef typename _Base::const_iterator _Base_const_iterator;
59 typedef typename _Base::iterator _Base_iterator;
60 typedef typename _Base::const_local_iterator _Base_const_local_iterator;
61 typedef typename _Base::local_iterator _Base_local_iterator;
63 typedef __gnu_cxx::__alloc_traits<typename
64 _Base::allocator_type> _Alloc_traits;
66 typedef typename _Base::size_type size_type;
67 typedef typename _Base::hasher hasher;
68 typedef typename _Base::key_equal key_equal;
69 typedef typename _Base::allocator_type allocator_type;
71 typedef typename _Base::key_type key_type;
72 typedef typename _Base::value_type value_type;
74 typedef __gnu_debug::_Safe_iterator<_Base_iterator,
75 unordered_set> iterator;
76 typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,
77 unordered_set> const_iterator;
78 typedef __gnu_debug::_Safe_local_iterator<_Base_local_iterator,
79 unordered_set> local_iterator;
80 typedef __gnu_debug::_Safe_local_iterator<_Base_const_local_iterator,
81 unordered_set> const_local_iterator;
84 unordered_set(size_type __n = 10,
85 const hasher& __hf = hasher(),
86 const key_equal& __eql = key_equal(),
87 const allocator_type& __a = allocator_type())
88 : _Base(__n, __hf, __eql, __a) { }
90 template<typename _InputIterator>
91 unordered_set(_InputIterator __first, _InputIterator __last,
93 const hasher& __hf = hasher(),
94 const key_equal& __eql = key_equal(),
95 const allocator_type& __a = allocator_type())
96 : _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
98 __gnu_debug::__base(__last), __n,
101 unordered_set(const unordered_set&) = default;
103 unordered_set(const _Base& __x)
106 unordered_set(unordered_set&&) = default;
109 unordered_set(const allocator_type& __a)
113 unordered_set(const unordered_set& __uset,
114 const allocator_type& __a)
115 : _Base(__uset._M_base(), __a)
118 unordered_set(unordered_set&& __uset,
119 const allocator_type& __a)
120 : _Base(std::move(__uset._M_base()), __a)
123 unordered_set(initializer_list<value_type> __l,
125 const hasher& __hf = hasher(),
126 const key_equal& __eql = key_equal(),
127 const allocator_type& __a = allocator_type())
128 : _Base(__l, __n, __hf, __eql, __a) { }
130 ~unordered_set() noexcept { }
133 operator=(const unordered_set& __x)
135 _M_base() = __x._M_base();
136 this->_M_invalidate_all();
141 operator=(unordered_set&& __x)
142 noexcept(_Alloc_traits::_S_nothrow_move())
144 __glibcxx_check_self_move_assign(__x);
145 bool __xfer_memory = _Alloc_traits::_S_propagate_on_move_assign()
146 || __x.get_allocator() == this->get_allocator();
147 _M_base() = std::move(__x._M_base());
151 this->_M_invalidate_all();
152 __x._M_invalidate_all();
157 operator=(initializer_list<value_type> __l)
160 this->_M_invalidate_all();
165 swap(unordered_set& __x)
166 noexcept(_Alloc_traits::_S_nothrow_swap())
168 if (!_Alloc_traits::_S_propagate_on_swap())
169 __glibcxx_check_equal_allocs(__x);
171 _Safe_base::_M_swap(__x);
178 this->_M_invalidate_all();
183 { return iterator(_Base::begin(), this); }
186 begin() const noexcept
187 { return const_iterator(_Base::begin(), this); }
191 { return iterator(_Base::end(), this); }
195 { return const_iterator(_Base::end(), this); }
198 cbegin() const noexcept
199 { return const_iterator(_Base::begin(), this); }
202 cend() const noexcept
203 { return const_iterator(_Base::end(), this); }
209 __glibcxx_check_bucket_index(__b);
210 return local_iterator(_Base::begin(__b), this);
216 __glibcxx_check_bucket_index(__b);
217 return local_iterator(_Base::end(__b), this);
221 begin(size_type __b) const
223 __glibcxx_check_bucket_index(__b);
224 return const_local_iterator(_Base::begin(__b), this);
228 end(size_type __b) const
230 __glibcxx_check_bucket_index(__b);
231 return const_local_iterator(_Base::end(__b), this);
235 cbegin(size_type __b) const
237 __glibcxx_check_bucket_index(__b);
238 return const_local_iterator(_Base::cbegin(__b), this);
242 cend(size_type __b) const
244 __glibcxx_check_bucket_index(__b);
245 return const_local_iterator(_Base::cend(__b), this);
249 bucket_size(size_type __b) const
251 __glibcxx_check_bucket_index(__b);
252 return _Base::bucket_size(__b);
256 max_load_factor() const noexcept
257 { return _Base::max_load_factor(); }
260 max_load_factor(float __f)
262 __glibcxx_check_max_load_factor(__f);
263 _Base::max_load_factor(__f);
266 template<typename... _Args>
267 std::pair<iterator, bool>
268 emplace(_Args&&... __args)
270 size_type __bucket_count = this->bucket_count();
271 std::pair<_Base_iterator, bool> __res
272 = _Base::emplace(std::forward<_Args>(__args)...);
273 _M_check_rehashed(__bucket_count);
274 return std::make_pair(iterator(__res.first, this), __res.second);
277 template<typename... _Args>
279 emplace_hint(const_iterator __hint, _Args&&... __args)
281 __glibcxx_check_insert(__hint);
282 size_type __bucket_count = this->bucket_count();
283 _Base_iterator __it = _Base::emplace_hint(__hint.base(),
284 std::forward<_Args>(__args)...);
285 _M_check_rehashed(__bucket_count);
286 return iterator(__it, this);
289 std::pair<iterator, bool>
290 insert(const value_type& __obj)
292 size_type __bucket_count = this->bucket_count();
293 typedef std::pair<_Base_iterator, bool> __pair_type;
294 __pair_type __res = _Base::insert(__obj);
295 _M_check_rehashed(__bucket_count);
296 return std::make_pair(iterator(__res.first, this), __res.second);
300 insert(const_iterator __hint, const value_type& __obj)
302 __glibcxx_check_insert(__hint);
303 size_type __bucket_count = this->bucket_count();
304 _Base_iterator __it = _Base::insert(__hint.base(), __obj);
305 _M_check_rehashed(__bucket_count);
306 return iterator(__it, this);
309 std::pair<iterator, bool>
310 insert(value_type&& __obj)
312 size_type __bucket_count = this->bucket_count();
313 typedef std::pair<typename _Base::iterator, bool> __pair_type;
314 __pair_type __res = _Base::insert(std::move(__obj));
315 _M_check_rehashed(__bucket_count);
316 return std::make_pair(iterator(__res.first, this), __res.second);
320 insert(const_iterator __hint, value_type&& __obj)
322 __glibcxx_check_insert(__hint);
323 size_type __bucket_count = this->bucket_count();
324 _Base_iterator __it = _Base::insert(__hint.base(), std::move(__obj));
325 _M_check_rehashed(__bucket_count);
326 return iterator(__it, this);
330 insert(std::initializer_list<value_type> __l)
332 size_type __bucket_count = this->bucket_count();
334 _M_check_rehashed(__bucket_count);
337 template<typename _InputIterator>
339 insert(_InputIterator __first, _InputIterator __last)
341 __glibcxx_check_valid_range(__first, __last);
342 size_type __bucket_count = this->bucket_count();
343 _Base::insert(__gnu_debug::__base(__first),
344 __gnu_debug::__base(__last));
345 _M_check_rehashed(__bucket_count);
349 find(const key_type& __key)
350 { return iterator(_Base::find(__key), this); }
353 find(const key_type& __key) const
354 { return const_iterator(_Base::find(__key), this); }
356 std::pair<iterator, iterator>
357 equal_range(const key_type& __key)
359 typedef std::pair<_Base_iterator, _Base_iterator> __pair_type;
360 __pair_type __res = _Base::equal_range(__key);
361 return std::make_pair(iterator(__res.first, this),
362 iterator(__res.second, this));
365 std::pair<const_iterator, const_iterator>
366 equal_range(const key_type& __key) const
368 std::pair<_Base_const_iterator, _Base_const_iterator>
369 __res = _Base::equal_range(__key);
370 return std::make_pair(const_iterator(__res.first, this),
371 const_iterator(__res.second, this));
375 erase(const key_type& __key)
378 _Base_iterator __victim(_Base::find(__key));
379 if (__victim != _Base::end())
381 this->_M_invalidate_if(
382 [__victim](_Base_const_iterator __it)
383 { return __it == __victim; });
384 this->_M_invalidate_local_if(
385 [__victim](_Base_const_local_iterator __it)
386 { return __it._M_curr() == __victim._M_cur; });
387 size_type __bucket_count = this->bucket_count();
388 _Base::erase(__victim);
389 _M_check_rehashed(__bucket_count);
396 erase(const_iterator __it)
398 __glibcxx_check_erase(__it);
399 _Base_const_iterator __victim = __it.base();
400 this->_M_invalidate_if(
401 [__victim](_Base_const_iterator __it)
402 { return __it == __victim; });
403 this->_M_invalidate_local_if(
404 [__victim](_Base_const_local_iterator __it)
405 { return __it._M_curr() == __victim._M_cur; });
406 size_type __bucket_count = this->bucket_count();
407 _Base_iterator __next = _Base::erase(__it.base());
408 _M_check_rehashed(__bucket_count);
409 return iterator(__next, this);
414 { return erase(const_iterator(__it)); }
417 erase(const_iterator __first, const_iterator __last)
419 __glibcxx_check_erase_range(__first, __last);
420 for (_Base_const_iterator __tmp = __first.base();
421 __tmp != __last.base(); ++__tmp)
423 _GLIBCXX_DEBUG_VERIFY(__tmp != _Base::end(),
424 _M_message(__gnu_debug::__msg_valid_range)
425 ._M_iterator(__first, "first")
426 ._M_iterator(__last, "last"));
427 this->_M_invalidate_if(
428 [__tmp](_Base_const_iterator __it)
429 { return __it == __tmp; });
430 this->_M_invalidate_local_if(
431 [__tmp](_Base_const_local_iterator __it)
432 { return __it._M_curr() == __tmp._M_cur; });
434 size_type __bucket_count = this->bucket_count();
435 _Base_iterator __next = _Base::erase(__first.base(),
437 _M_check_rehashed(__bucket_count);
438 return iterator(__next, this);
442 _M_base() noexcept { return *this; }
445 _M_base() const noexcept { return *this; }
449 _M_invalidate_locals()
451 _Base_local_iterator __local_end = _Base::end(0);
452 this->_M_invalidate_local_if(
453 [__local_end](_Base_const_local_iterator __it)
454 { return __it != __local_end; });
460 _Base_iterator __end = _Base::end();
461 this->_M_invalidate_if(
462 [__end](_Base_const_iterator __it)
463 { return __it != __end; });
464 _M_invalidate_locals();
468 _M_check_rehashed(size_type __prev_count)
470 if (__prev_count != this->bucket_count())
471 _M_invalidate_locals();
475 template<typename _Value, typename _Hash, typename _Pred, typename _Alloc>
477 swap(unordered_set<_Value, _Hash, _Pred, _Alloc>& __x,
478 unordered_set<_Value, _Hash, _Pred, _Alloc>& __y)
481 template<typename _Value, typename _Hash, typename _Pred, typename _Alloc>
483 operator==(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x,
484 const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y)
485 { return __x._M_base() == __y._M_base(); }
487 template<typename _Value, typename _Hash, typename _Pred, typename _Alloc>
489 operator!=(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x,
490 const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y)
491 { return !(__x == __y); }
494 /// Class std::unordered_multiset with safety/checking/debug instrumentation.
495 template<typename _Value,
496 typename _Hash = std::hash<_Value>,
497 typename _Pred = std::equal_to<_Value>,
498 typename _Alloc = std::allocator<_Value> >
499 class unordered_multiset
500 : public _GLIBCXX_STD_C::unordered_multiset<_Value, _Hash, _Pred, _Alloc>,
501 public __gnu_debug::_Safe_unordered_container<
502 unordered_multiset<_Value, _Hash, _Pred, _Alloc> >
504 typedef _GLIBCXX_STD_C::unordered_multiset<_Value, _Hash,
505 _Pred, _Alloc> _Base;
506 typedef __gnu_debug::_Safe_unordered_container<unordered_multiset>
508 typedef typename _Base::const_iterator _Base_const_iterator;
509 typedef typename _Base::iterator _Base_iterator;
510 typedef typename _Base::const_local_iterator _Base_const_local_iterator;
511 typedef typename _Base::local_iterator _Base_local_iterator;
513 typedef __gnu_cxx::__alloc_traits<typename
514 _Base::allocator_type> _Alloc_traits;
517 typedef typename _Base::size_type size_type;
518 typedef typename _Base::hasher hasher;
519 typedef typename _Base::key_equal key_equal;
520 typedef typename _Base::allocator_type allocator_type;
522 typedef typename _Base::key_type key_type;
523 typedef typename _Base::value_type value_type;
525 typedef __gnu_debug::_Safe_iterator<_Base_iterator,
526 unordered_multiset> iterator;
527 typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,
528 unordered_multiset> const_iterator;
529 typedef __gnu_debug::_Safe_local_iterator<
530 _Base_local_iterator, unordered_multiset> local_iterator;
531 typedef __gnu_debug::_Safe_local_iterator<
532 _Base_const_local_iterator, unordered_multiset> const_local_iterator;
535 unordered_multiset(size_type __n = 10,
536 const hasher& __hf = hasher(),
537 const key_equal& __eql = key_equal(),
538 const allocator_type& __a = allocator_type())
539 : _Base(__n, __hf, __eql, __a) { }
541 template<typename _InputIterator>
542 unordered_multiset(_InputIterator __first, _InputIterator __last,
544 const hasher& __hf = hasher(),
545 const key_equal& __eql = key_equal(),
546 const allocator_type& __a = allocator_type())
547 : _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
549 __gnu_debug::__base(__last), __n,
550 __hf, __eql, __a) { }
552 unordered_multiset(const unordered_multiset&) = default;
554 unordered_multiset(const _Base& __x)
557 unordered_multiset(unordered_multiset&&) = default;
560 unordered_multiset(const allocator_type& __a)
564 unordered_multiset(const unordered_multiset& __uset,
565 const allocator_type& __a)
566 : _Base(__uset._M_base(), __a)
569 unordered_multiset(unordered_multiset&& __uset,
570 const allocator_type& __a)
571 : _Base(std::move(__uset._M_base()), __a)
574 unordered_multiset(initializer_list<value_type> __l,
576 const hasher& __hf = hasher(),
577 const key_equal& __eql = key_equal(),
578 const allocator_type& __a = allocator_type())
579 : _Base(__l, __n, __hf, __eql, __a) { }
581 ~unordered_multiset() noexcept { }
584 operator=(const unordered_multiset& __x)
586 _M_base() = __x._M_base();
587 this->_M_invalidate_all();
592 operator=(unordered_multiset&& __x)
593 noexcept(_Alloc_traits::_S_nothrow_move())
595 __glibcxx_check_self_move_assign(__x);
596 bool __xfer_memory = _Alloc_traits::_S_propagate_on_move_assign()
597 || __x.get_allocator() == this->get_allocator();
598 _M_base() = std::move(__x._M_base());
602 this->_M_invalidate_all();
603 __x._M_invalidate_all();
608 operator=(initializer_list<value_type> __l)
611 this->_M_invalidate_all();
616 swap(unordered_multiset& __x)
617 noexcept(_Alloc_traits::_S_nothrow_swap())
619 if (!_Alloc_traits::_S_propagate_on_swap())
620 __glibcxx_check_equal_allocs(__x);
622 _Safe_base::_M_swap(__x);
629 this->_M_invalidate_all();
634 { return iterator(_Base::begin(), this); }
637 begin() const noexcept
638 { return const_iterator(_Base::begin(), this); }
642 { return iterator(_Base::end(), this); }
646 { return const_iterator(_Base::end(), this); }
649 cbegin() const noexcept
650 { return const_iterator(_Base::begin(), this); }
653 cend() const noexcept
654 { return const_iterator(_Base::end(), this); }
660 __glibcxx_check_bucket_index(__b);
661 return local_iterator(_Base::begin(__b), this);
667 __glibcxx_check_bucket_index(__b);
668 return local_iterator(_Base::end(__b), this);
672 begin(size_type __b) const
674 __glibcxx_check_bucket_index(__b);
675 return const_local_iterator(_Base::begin(__b), this);
679 end(size_type __b) const
681 __glibcxx_check_bucket_index(__b);
682 return const_local_iterator(_Base::end(__b), this);
686 cbegin(size_type __b) const
688 __glibcxx_check_bucket_index(__b);
689 return const_local_iterator(_Base::cbegin(__b), this);
693 cend(size_type __b) const
695 __glibcxx_check_bucket_index(__b);
696 return const_local_iterator(_Base::cend(__b), this);
700 bucket_size(size_type __b) const
702 __glibcxx_check_bucket_index(__b);
703 return _Base::bucket_size(__b);
707 max_load_factor() const noexcept
708 { return _Base::max_load_factor(); }
711 max_load_factor(float __f)
713 __glibcxx_check_max_load_factor(__f);
714 _Base::max_load_factor(__f);
717 template<typename... _Args>
719 emplace(_Args&&... __args)
721 size_type __bucket_count = this->bucket_count();
723 = _Base::emplace(std::forward<_Args>(__args)...);
724 _M_check_rehashed(__bucket_count);
725 return iterator(__it, this);
728 template<typename... _Args>
730 emplace_hint(const_iterator __hint, _Args&&... __args)
732 __glibcxx_check_insert(__hint);
733 size_type __bucket_count = this->bucket_count();
734 _Base_iterator __it = _Base::emplace_hint(__hint.base(),
735 std::forward<_Args>(__args)...);
736 _M_check_rehashed(__bucket_count);
737 return iterator(__it, this);
741 insert(const value_type& __obj)
743 size_type __bucket_count = this->bucket_count();
744 _Base_iterator __it = _Base::insert(__obj);
745 _M_check_rehashed(__bucket_count);
746 return iterator(__it, this);
750 insert(const_iterator __hint, const value_type& __obj)
752 __glibcxx_check_insert(__hint);
753 size_type __bucket_count = this->bucket_count();
754 _Base_iterator __it = _Base::insert(__hint.base(), __obj);
755 _M_check_rehashed(__bucket_count);
756 return iterator(__it, this);
760 insert(value_type&& __obj)
762 size_type __bucket_count = this->bucket_count();
763 _Base_iterator __it = _Base::insert(std::move(__obj));
764 _M_check_rehashed(__bucket_count);
765 return iterator(__it, this);
769 insert(const_iterator __hint, value_type&& __obj)
771 __glibcxx_check_insert(__hint);
772 size_type __bucket_count = this->bucket_count();
773 _Base_iterator __it = _Base::insert(__hint.base(), std::move(__obj));
774 _M_check_rehashed(__bucket_count);
775 return iterator(__it, this);
779 insert(std::initializer_list<value_type> __l)
781 size_type __bucket_count = this->bucket_count();
783 _M_check_rehashed(__bucket_count);
786 template<typename _InputIterator>
788 insert(_InputIterator __first, _InputIterator __last)
790 __glibcxx_check_valid_range(__first, __last);
791 size_type __bucket_count = this->bucket_count();
792 _Base::insert(__gnu_debug::__base(__first),
793 __gnu_debug::__base(__last));
794 _M_check_rehashed(__bucket_count);
798 find(const key_type& __key)
799 { return iterator(_Base::find(__key), this); }
802 find(const key_type& __key) const
803 { return const_iterator(_Base::find(__key), this); }
805 std::pair<iterator, iterator>
806 equal_range(const key_type& __key)
808 typedef std::pair<_Base_iterator, _Base_iterator> __pair_type;
809 __pair_type __res = _Base::equal_range(__key);
810 return std::make_pair(iterator(__res.first, this),
811 iterator(__res.second, this));
814 std::pair<const_iterator, const_iterator>
815 equal_range(const key_type& __key) const
817 std::pair<_Base_const_iterator, _Base_const_iterator>
818 __res = _Base::equal_range(__key);
819 return std::make_pair(const_iterator(__res.first, this),
820 const_iterator(__res.second, this));
824 erase(const key_type& __key)
827 std::pair<_Base_iterator, _Base_iterator> __pair =
828 _Base::equal_range(__key);
829 for (_Base_iterator __victim = __pair.first; __victim != __pair.second;)
831 this->_M_invalidate_if([__victim](_Base_const_iterator __it)
832 { return __it == __victim; });
833 this->_M_invalidate_local_if(
834 [__victim](_Base_const_local_iterator __it)
835 { return __it._M_curr() == __victim._M_cur; });
836 _Base::erase(__victim++);
843 erase(const_iterator __it)
845 __glibcxx_check_erase(__it);
846 _Base_const_iterator __victim = __it.base();
847 this->_M_invalidate_if([__victim](_Base_const_iterator __it)
848 { return __it == __victim; });
849 this->_M_invalidate_local_if(
850 [__victim](_Base_const_local_iterator __it)
851 { return __it._M_curr() == __victim._M_cur; });
852 return iterator(_Base::erase(__it.base()), this);
857 { return erase(const_iterator(__it)); }
860 erase(const_iterator __first, const_iterator __last)
862 __glibcxx_check_erase_range(__first, __last);
863 for (_Base_const_iterator __tmp = __first.base();
864 __tmp != __last.base(); ++__tmp)
866 _GLIBCXX_DEBUG_VERIFY(__tmp != _Base::end(),
867 _M_message(__gnu_debug::__msg_valid_range)
868 ._M_iterator(__first, "first")
869 ._M_iterator(__last, "last"));
870 this->_M_invalidate_if([__tmp](_Base_const_iterator __it)
871 { return __it == __tmp; });
872 this->_M_invalidate_local_if(
873 [__tmp](_Base_const_local_iterator __it)
874 { return __it._M_curr() == __tmp._M_cur; });
876 return iterator(_Base::erase(__first.base(),
877 __last.base()), this);
881 _M_base() noexcept { return *this; }
884 _M_base() const noexcept { return *this; }
888 _M_invalidate_locals()
890 _Base_local_iterator __local_end = _Base::end(0);
891 this->_M_invalidate_local_if(
892 [__local_end](_Base_const_local_iterator __it)
893 { return __it != __local_end; });
899 _Base_iterator __end = _Base::end();
900 this->_M_invalidate_if([__end](_Base_const_iterator __it)
901 { return __it != __end; });
902 _M_invalidate_locals();
906 _M_check_rehashed(size_type __prev_count)
908 if (__prev_count != this->bucket_count())
909 _M_invalidate_locals();
913 template<typename _Value, typename _Hash, typename _Pred, typename _Alloc>
915 swap(unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
916 unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y)
919 template<typename _Value, typename _Hash, typename _Pred, typename _Alloc>
921 operator==(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
922 const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y)
923 { return __x._M_base() == __y._M_base(); }
925 template<typename _Value, typename _Hash, typename _Pred, typename _Alloc>
927 operator!=(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
928 const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y)
929 { return !(__x == __y); }
931 } // namespace __debug