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Diffstat (limited to 'libcxx/include/unordered_set')
| -rw-r--r-- | libcxx/include/unordered_set | 1680 |
1 files changed, 1680 insertions, 0 deletions
diff --git a/libcxx/include/unordered_set b/libcxx/include/unordered_set new file mode 100644 index 0000000000000..68f777a4ea3eb --- /dev/null +++ b/libcxx/include/unordered_set @@ -0,0 +1,1680 @@ +// -*- C++ -*- +//===-------------------------- unordered_set -----------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP_UNORDERED_SET +#define _LIBCPP_UNORDERED_SET + +/* + + unordered_set synopsis + +#include <initializer_list> + +namespace std +{ + +template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>, + class Alloc = allocator<Value>> +class unordered_set +{ +public: + // types + typedef Value key_type; + typedef key_type value_type; + typedef Hash hasher; + typedef Pred key_equal; + typedef Alloc allocator_type; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef typename allocator_traits<allocator_type>::pointer pointer; + typedef typename allocator_traits<allocator_type>::const_pointer const_pointer; + typedef typename allocator_traits<allocator_type>::size_type size_type; + typedef typename allocator_traits<allocator_type>::difference_type difference_type; + + typedef /unspecified/ iterator; + typedef /unspecified/ const_iterator; + typedef /unspecified/ local_iterator; + typedef /unspecified/ const_local_iterator; + + typedef unspecified node_type unspecified; // C++17 + typedef INSERT_RETURN_TYPE<iterator, node_type> insert_return_type; // C++17 + + unordered_set() + noexcept( + is_nothrow_default_constructible<hasher>::value && + is_nothrow_default_constructible<key_equal>::value && + is_nothrow_default_constructible<allocator_type>::value); + explicit unordered_set(size_type n, const hasher& hf = hasher(), + const key_equal& eql = key_equal(), + const allocator_type& a = allocator_type()); + template <class InputIterator> + unordered_set(InputIterator f, InputIterator l, + size_type n = 0, const hasher& hf = hasher(), + const key_equal& eql = key_equal(), + const allocator_type& a = allocator_type()); + explicit unordered_set(const allocator_type&); + unordered_set(const unordered_set&); + unordered_set(const unordered_set&, const Allocator&); + unordered_set(unordered_set&&) + noexcept( + is_nothrow_move_constructible<hasher>::value && + is_nothrow_move_constructible<key_equal>::value && + is_nothrow_move_constructible<allocator_type>::value); + unordered_set(unordered_set&&, const Allocator&); + unordered_set(initializer_list<value_type>, size_type n = 0, + const hasher& hf = hasher(), const key_equal& eql = key_equal(), + const allocator_type& a = allocator_type()); + unordered_set(size_type n, const allocator_type& a); // C++14 + unordered_set(size_type n, const hasher& hf, const allocator_type& a); // C++14 + template <class InputIterator> + unordered_set(InputIterator f, InputIterator l, size_type n, const allocator_type& a); // C++14 + template <class InputIterator> + unordered_set(InputIterator f, InputIterator l, size_type n, + const hasher& hf, const allocator_type& a); // C++14 + unordered_set(initializer_list<value_type> il, size_type n, const allocator_type& a); // C++14 + unordered_set(initializer_list<value_type> il, size_type n, + const hasher& hf, const allocator_type& a); // C++14 + ~unordered_set(); + unordered_set& operator=(const unordered_set&); + unordered_set& operator=(unordered_set&&) + noexcept( + allocator_type::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value && + is_nothrow_move_assignable<hasher>::value && + is_nothrow_move_assignable<key_equal>::value); + unordered_set& operator=(initializer_list<value_type>); + + allocator_type get_allocator() const noexcept; + + bool empty() const noexcept; + size_type size() const noexcept; + size_type max_size() const noexcept; + + iterator begin() noexcept; + iterator end() noexcept; + const_iterator begin() const noexcept; + const_iterator end() const noexcept; + const_iterator cbegin() const noexcept; + const_iterator cend() const noexcept; + + template <class... Args> + pair<iterator, bool> emplace(Args&&... args); + template <class... Args> + iterator emplace_hint(const_iterator position, Args&&... args); + pair<iterator, bool> insert(const value_type& obj); + pair<iterator, bool> insert(value_type&& obj); + iterator insert(const_iterator hint, const value_type& obj); + iterator insert(const_iterator hint, value_type&& obj); + template <class InputIterator> + void insert(InputIterator first, InputIterator last); + void insert(initializer_list<value_type>); + + node_type extract(const_iterator position); // C++17 + node_type extract(const key_type& x); // C++17 + insert_return_type insert(node_type&& nh); // C++17 + iterator insert(const_iterator hint, node_type&& nh); // C++17 + + iterator erase(const_iterator position); + iterator erase(iterator position); // C++14 + size_type erase(const key_type& k); + iterator erase(const_iterator first, const_iterator last); + void clear() noexcept; + + template<class H2, class P2> + void merge(unordered_set<Key, H2, P2, Allocator>& source); // C++17 + template<class H2, class P2> + void merge(unordered_set<Key, H2, P2, Allocator>&& source); // C++17 + template<class H2, class P2> + void merge(unordered_multiset<Key, H2, P2, Allocator>& source); // C++17 + template<class H2, class P2> + void merge(unordered_multiset<Key, H2, P2, Allocator>&& source); // C++17 + + void swap(unordered_set&) + noexcept(allocator_traits<Allocator>::is_always_equal::value && + noexcept(swap(declval<hasher&>(), declval<hasher&>())) && + noexcept(swap(declval<key_equal&>(), declval<key_equal&>()))); // C++17 + + hasher hash_function() const; + key_equal key_eq() const; + + iterator find(const key_type& k); + const_iterator find(const key_type& k) const; + size_type count(const key_type& k) const; + bool contains(const key_type& k) const; // C++20 + pair<iterator, iterator> equal_range(const key_type& k); + pair<const_iterator, const_iterator> equal_range(const key_type& k) const; + + size_type bucket_count() const noexcept; + size_type max_bucket_count() const noexcept; + + size_type bucket_size(size_type n) const; + size_type bucket(const key_type& k) const; + + local_iterator begin(size_type n); + local_iterator end(size_type n); + const_local_iterator begin(size_type n) const; + const_local_iterator end(size_type n) const; + const_local_iterator cbegin(size_type n) const; + const_local_iterator cend(size_type n) const; + + float load_factor() const noexcept; + float max_load_factor() const noexcept; + void max_load_factor(float z); + void rehash(size_type n); + void reserve(size_type n); +}; + +template <class Value, class Hash, class Pred, class Alloc> + void swap(unordered_set<Value, Hash, Pred, Alloc>& x, + unordered_set<Value, Hash, Pred, Alloc>& y) + noexcept(noexcept(x.swap(y))); + +template <class Value, class Hash, class Pred, class Alloc> + bool + operator==(const unordered_set<Value, Hash, Pred, Alloc>& x, + const unordered_set<Value, Hash, Pred, Alloc>& y); + +template <class Value, class Hash, class Pred, class Alloc> + bool + operator!=(const unordered_set<Value, Hash, Pred, Alloc>& x, + const unordered_set<Value, Hash, Pred, Alloc>& y); + +template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>, + class Alloc = allocator<Value>> +class unordered_multiset +{ +public: + // types + typedef Value key_type; + typedef key_type value_type; + typedef Hash hasher; + typedef Pred key_equal; + typedef Alloc allocator_type; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef typename allocator_traits<allocator_type>::pointer pointer; + typedef typename allocator_traits<allocator_type>::const_pointer const_pointer; + typedef typename allocator_traits<allocator_type>::size_type size_type; + typedef typename allocator_traits<allocator_type>::difference_type difference_type; + + typedef /unspecified/ iterator; + typedef /unspecified/ const_iterator; + typedef /unspecified/ local_iterator; + typedef /unspecified/ const_local_iterator; + + typedef unspecified node_type unspecified; // C++17 + + unordered_multiset() + noexcept( + is_nothrow_default_constructible<hasher>::value && + is_nothrow_default_constructible<key_equal>::value && + is_nothrow_default_constructible<allocator_type>::value); + explicit unordered_multiset(size_type n, const hasher& hf = hasher(), + const key_equal& eql = key_equal(), + const allocator_type& a = allocator_type()); + template <class InputIterator> + unordered_multiset(InputIterator f, InputIterator l, + size_type n = 0, const hasher& hf = hasher(), + const key_equal& eql = key_equal(), + const allocator_type& a = allocator_type()); + explicit unordered_multiset(const allocator_type&); + unordered_multiset(const unordered_multiset&); + unordered_multiset(const unordered_multiset&, const Allocator&); + unordered_multiset(unordered_multiset&&) + noexcept( + is_nothrow_move_constructible<hasher>::value && + is_nothrow_move_constructible<key_equal>::value && + is_nothrow_move_constructible<allocator_type>::value); + unordered_multiset(unordered_multiset&&, const Allocator&); + unordered_multiset(initializer_list<value_type>, size_type n = /see below/, + const hasher& hf = hasher(), const key_equal& eql = key_equal(), + const allocator_type& a = allocator_type()); + unordered_multiset(size_type n, const allocator_type& a); // C++14 + unordered_multiset(size_type n, const hasher& hf, const allocator_type& a); // C++14 + template <class InputIterator> + unordered_multiset(InputIterator f, InputIterator l, size_type n, const allocator_type& a); // C++14 + template <class InputIterator> + unordered_multiset(InputIterator f, InputIterator l, size_type n, + const hasher& hf, const allocator_type& a); // C++14 + unordered_multiset(initializer_list<value_type> il, size_type n, const allocator_type& a); // C++14 + unordered_multiset(initializer_list<value_type> il, size_type n, + const hasher& hf, const allocator_type& a); // C++14 + ~unordered_multiset(); + unordered_multiset& operator=(const unordered_multiset&); + unordered_multiset& operator=(unordered_multiset&&) + noexcept( + allocator_type::propagate_on_container_move_assignment::value && + is_nothrow_move_assignable<allocator_type>::value && + is_nothrow_move_assignable<hasher>::value && + is_nothrow_move_assignable<key_equal>::value); + unordered_multiset& operator=(initializer_list<value_type>); + + allocator_type get_allocator() const noexcept; + + bool empty() const noexcept; + size_type size() const noexcept; + size_type max_size() const noexcept; + + iterator begin() noexcept; + iterator end() noexcept; + const_iterator begin() const noexcept; + const_iterator end() const noexcept; + const_iterator cbegin() const noexcept; + const_iterator cend() const noexcept; + + template <class... Args> + iterator emplace(Args&&... args); + template <class... Args> + iterator emplace_hint(const_iterator position, Args&&... args); + iterator insert(const value_type& obj); + iterator insert(value_type&& obj); + iterator insert(const_iterator hint, const value_type& obj); + iterator insert(const_iterator hint, value_type&& obj); + template <class InputIterator> + void insert(InputIterator first, InputIterator last); + void insert(initializer_list<value_type>); + + node_type extract(const_iterator position); // C++17 + node_type extract(const key_type& x); // C++17 + iterator insert(node_type&& nh); // C++17 + iterator insert(const_iterator hint, node_type&& nh); // C++17 + + iterator erase(const_iterator position); + iterator erase(iterator position); // C++14 + size_type erase(const key_type& k); + iterator erase(const_iterator first, const_iterator last); + void clear() noexcept; + + template<class H2, class P2> + void merge(unordered_multiset<Key, H2, P2, Allocator>& source); // C++17 + template<class H2, class P2> + void merge(unordered_multiset<Key, H2, P2, Allocator>&& source); // C++17 + template<class H2, class P2> + void merge(unordered_set<Key, H2, P2, Allocator>& source); // C++17 + template<class H2, class P2> + void merge(unordered_set<Key, H2, P2, Allocator>&& source); // C++17 + + void swap(unordered_multiset&) + noexcept(allocator_traits<Allocator>::is_always_equal::value && + noexcept(swap(declval<hasher&>(), declval<hasher&>())) && + noexcept(swap(declval<key_equal&>(), declval<key_equal&>()))); // C++17 + + hasher hash_function() const; + key_equal key_eq() const; + + iterator find(const key_type& k); + const_iterator find(const key_type& k) const; + size_type count(const key_type& k) const; + bool contains(const key_type& k) const; // C++20 + pair<iterator, iterator> equal_range(const key_type& k); + pair<const_iterator, const_iterator> equal_range(const key_type& k) const; + + size_type bucket_count() const noexcept; + size_type max_bucket_count() const noexcept; + + size_type bucket_size(size_type n) const; + size_type bucket(const key_type& k) const; + + local_iterator begin(size_type n); + local_iterator end(size_type n); + const_local_iterator begin(size_type n) const; + const_local_iterator end(size_type n) const; + const_local_iterator cbegin(size_type n) const; + const_local_iterator cend(size_type n) const; + + float load_factor() const noexcept; + float max_load_factor() const noexcept; + void max_load_factor(float z); + void rehash(size_type n); + void reserve(size_type n); +}; + +template <class Value, class Hash, class Pred, class Alloc> + void swap(unordered_multiset<Value, Hash, Pred, Alloc>& x, + unordered_multiset<Value, Hash, Pred, Alloc>& y) + noexcept(noexcept(x.swap(y))); + +template <class K, class T, class H, class P, class A, class Predicate> + void erase_if(unordered_set<K, T, H, P, A>& c, Predicate pred); // C++20 + +template <class K, class T, class H, class P, class A, class Predicate> + void erase_if(unordered_multiset<K, T, H, P, A>& c, Predicate pred); // C++20 + + +template <class Value, class Hash, class Pred, class Alloc> + bool + operator==(const unordered_multiset<Value, Hash, Pred, Alloc>& x, + const unordered_multiset<Value, Hash, Pred, Alloc>& y); + +template <class Value, class Hash, class Pred, class Alloc> + bool + operator!=(const unordered_multiset<Value, Hash, Pred, Alloc>& x, + const unordered_multiset<Value, Hash, Pred, Alloc>& y); +} // std + +*/ + +#include <__config> +#include <__hash_table> +#include <__node_handle> +#include <functional> +#include <version> + +#include <__debug> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +template <class _Value, class _Hash, class _Pred, class _Alloc> +class unordered_multiset; + +template <class _Value, class _Hash = hash<_Value>, class _Pred = equal_to<_Value>, + class _Alloc = allocator<_Value> > +class _LIBCPP_TEMPLATE_VIS unordered_set +{ +public: + // types + typedef _Value key_type; + typedef key_type value_type; + typedef typename __identity<_Hash>::type hasher; + typedef typename __identity<_Pred>::type key_equal; + typedef typename __identity<_Alloc>::type allocator_type; + typedef value_type& reference; + typedef const value_type& const_reference; + static_assert((is_same<value_type, typename allocator_type::value_type>::value), + "Invalid allocator::value_type"); + +private: + typedef __hash_table<value_type, hasher, key_equal, allocator_type> __table; + + __table __table_; + +public: + typedef typename __table::pointer pointer; + typedef typename __table::const_pointer const_pointer; + typedef typename __table::size_type size_type; + typedef typename __table::difference_type difference_type; + + typedef typename __table::const_iterator iterator; + typedef typename __table::const_iterator const_iterator; + typedef typename __table::const_local_iterator local_iterator; + typedef typename __table::const_local_iterator const_local_iterator; + +#if _LIBCPP_STD_VER > 14 + typedef __set_node_handle<typename __table::__node, allocator_type> node_type; + typedef __insert_return_type<iterator, node_type> insert_return_type; +#endif + + template <class _Value2, class _Hash2, class _Pred2, class _Alloc2> + friend class _LIBCPP_TEMPLATE_VIS unordered_set; + template <class _Value2, class _Hash2, class _Pred2, class _Alloc2> + friend class _LIBCPP_TEMPLATE_VIS unordered_multiset; + + _LIBCPP_INLINE_VISIBILITY + unordered_set() + _NOEXCEPT_(is_nothrow_default_constructible<__table>::value) + { +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + } + explicit unordered_set(size_type __n, const hasher& __hf = hasher(), + const key_equal& __eql = key_equal()); +#if _LIBCPP_STD_VER > 11 + inline _LIBCPP_INLINE_VISIBILITY + unordered_set(size_type __n, const allocator_type& __a) + : unordered_set(__n, hasher(), key_equal(), __a) {} + inline _LIBCPP_INLINE_VISIBILITY + unordered_set(size_type __n, const hasher& __hf, const allocator_type& __a) + : unordered_set(__n, __hf, key_equal(), __a) {} +#endif + unordered_set(size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a); + template <class _InputIterator> + unordered_set(_InputIterator __first, _InputIterator __last); + template <class _InputIterator> + unordered_set(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf = hasher(), + const key_equal& __eql = key_equal()); + template <class _InputIterator> + unordered_set(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a); +#if _LIBCPP_STD_VER > 11 + template <class _InputIterator> + inline _LIBCPP_INLINE_VISIBILITY + unordered_set(_InputIterator __first, _InputIterator __last, + size_type __n, const allocator_type& __a) + : unordered_set(__first, __last, __n, hasher(), key_equal(), __a) {} + template <class _InputIterator> + unordered_set(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf, const allocator_type& __a) + : unordered_set(__first, __last, __n, __hf, key_equal(), __a) {} +#endif + _LIBCPP_INLINE_VISIBILITY + explicit unordered_set(const allocator_type& __a); + unordered_set(const unordered_set& __u); + unordered_set(const unordered_set& __u, const allocator_type& __a); +#ifndef _LIBCPP_CXX03_LANG + _LIBCPP_INLINE_VISIBILITY + unordered_set(unordered_set&& __u) + _NOEXCEPT_(is_nothrow_move_constructible<__table>::value); + unordered_set(unordered_set&& __u, const allocator_type& __a); + unordered_set(initializer_list<value_type> __il); + unordered_set(initializer_list<value_type> __il, size_type __n, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal()); + unordered_set(initializer_list<value_type> __il, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a); +#if _LIBCPP_STD_VER > 11 + inline _LIBCPP_INLINE_VISIBILITY + unordered_set(initializer_list<value_type> __il, size_type __n, + const allocator_type& __a) + : unordered_set(__il, __n, hasher(), key_equal(), __a) {} + inline _LIBCPP_INLINE_VISIBILITY + unordered_set(initializer_list<value_type> __il, size_type __n, + const hasher& __hf, const allocator_type& __a) + : unordered_set(__il, __n, __hf, key_equal(), __a) {} +#endif +#endif // _LIBCPP_CXX03_LANG + _LIBCPP_INLINE_VISIBILITY + ~unordered_set() { + static_assert(sizeof(__diagnose_unordered_container_requirements<_Value, _Hash, _Pred>(0)), ""); + } + + _LIBCPP_INLINE_VISIBILITY + unordered_set& operator=(const unordered_set& __u) + { + __table_ = __u.__table_; + return *this; + } +#ifndef _LIBCPP_CXX03_LANG + _LIBCPP_INLINE_VISIBILITY + unordered_set& operator=(unordered_set&& __u) + _NOEXCEPT_(is_nothrow_move_assignable<__table>::value); + _LIBCPP_INLINE_VISIBILITY + unordered_set& operator=(initializer_list<value_type> __il); +#endif // _LIBCPP_CXX03_LANG + + _LIBCPP_INLINE_VISIBILITY + allocator_type get_allocator() const _NOEXCEPT + {return allocator_type(__table_.__node_alloc());} + + _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY + bool empty() const _NOEXCEPT {return __table_.size() == 0;} + _LIBCPP_INLINE_VISIBILITY + size_type size() const _NOEXCEPT {return __table_.size();} + _LIBCPP_INLINE_VISIBILITY + size_type max_size() const _NOEXCEPT {return __table_.max_size();} + + _LIBCPP_INLINE_VISIBILITY + iterator begin() _NOEXCEPT {return __table_.begin();} + _LIBCPP_INLINE_VISIBILITY + iterator end() _NOEXCEPT {return __table_.end();} + _LIBCPP_INLINE_VISIBILITY + const_iterator begin() const _NOEXCEPT {return __table_.begin();} + _LIBCPP_INLINE_VISIBILITY + const_iterator end() const _NOEXCEPT {return __table_.end();} + _LIBCPP_INLINE_VISIBILITY + const_iterator cbegin() const _NOEXCEPT {return __table_.begin();} + _LIBCPP_INLINE_VISIBILITY + const_iterator cend() const _NOEXCEPT {return __table_.end();} + +#ifndef _LIBCPP_CXX03_LANG + template <class... _Args> + _LIBCPP_INLINE_VISIBILITY + pair<iterator, bool> emplace(_Args&&... __args) + {return __table_.__emplace_unique(_VSTD::forward<_Args>(__args)...);} + template <class... _Args> + _LIBCPP_INLINE_VISIBILITY +#if _LIBCPP_DEBUG_LEVEL >= 2 + iterator emplace_hint(const_iterator __p, _Args&&... __args) + { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__p) == this, + "unordered_set::emplace_hint(const_iterator, args...) called with an iterator not" + " referring to this unordered_set"); + return __table_.__emplace_unique(_VSTD::forward<_Args>(__args)...).first; + } +#else + iterator emplace_hint(const_iterator, _Args&&... __args) + {return __table_.__emplace_unique(_VSTD::forward<_Args>(__args)...).first;} +#endif + + _LIBCPP_INLINE_VISIBILITY + pair<iterator, bool> insert(value_type&& __x) + {return __table_.__insert_unique(_VSTD::move(__x));} + _LIBCPP_INLINE_VISIBILITY +#if _LIBCPP_DEBUG_LEVEL >= 2 + iterator insert(const_iterator __p, value_type&& __x) + { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__p) == this, + "unordered_set::insert(const_iterator, value_type&&) called with an iterator not" + " referring to this unordered_set"); + return insert(_VSTD::move(__x)).first; + } +#else + iterator insert(const_iterator, value_type&& __x) + {return insert(_VSTD::move(__x)).first;} +#endif + _LIBCPP_INLINE_VISIBILITY + void insert(initializer_list<value_type> __il) + {insert(__il.begin(), __il.end());} +#endif // _LIBCPP_CXX03_LANG + _LIBCPP_INLINE_VISIBILITY + pair<iterator, bool> insert(const value_type& __x) + {return __table_.__insert_unique(__x);} + + _LIBCPP_INLINE_VISIBILITY +#if _LIBCPP_DEBUG_LEVEL >= 2 + iterator insert(const_iterator __p, const value_type& __x) + { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__p) == this, + "unordered_set::insert(const_iterator, const value_type&) called with an iterator not" + " referring to this unordered_set"); + return insert(__x).first; + } +#else + iterator insert(const_iterator, const value_type& __x) + {return insert(__x).first;} +#endif + template <class _InputIterator> + _LIBCPP_INLINE_VISIBILITY + void insert(_InputIterator __first, _InputIterator __last); + + _LIBCPP_INLINE_VISIBILITY + iterator erase(const_iterator __p) {return __table_.erase(__p);} + _LIBCPP_INLINE_VISIBILITY + size_type erase(const key_type& __k) {return __table_.__erase_unique(__k);} + _LIBCPP_INLINE_VISIBILITY + iterator erase(const_iterator __first, const_iterator __last) + {return __table_.erase(__first, __last);} + _LIBCPP_INLINE_VISIBILITY + void clear() _NOEXCEPT {__table_.clear();} + +#if _LIBCPP_STD_VER > 14 + _LIBCPP_INLINE_VISIBILITY + insert_return_type insert(node_type&& __nh) + { + _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(), + "node_type with incompatible allocator passed to unordered_set::insert()"); + return __table_.template __node_handle_insert_unique< + node_type, insert_return_type>(_VSTD::move(__nh)); + } + _LIBCPP_INLINE_VISIBILITY + iterator insert(const_iterator __h, node_type&& __nh) + { + _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(), + "node_type with incompatible allocator passed to unordered_set::insert()"); + return __table_.template __node_handle_insert_unique<node_type>( + __h, _VSTD::move(__nh)); + } + _LIBCPP_INLINE_VISIBILITY + node_type extract(key_type const& __key) + { + return __table_.template __node_handle_extract<node_type>(__key); + } + _LIBCPP_INLINE_VISIBILITY + node_type extract(const_iterator __it) + { + return __table_.template __node_handle_extract<node_type>(__it); + } + + template<class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_set<key_type, _H2, _P2, allocator_type>& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + __table_.__node_handle_merge_unique(__source.__table_); + } + template<class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_set<key_type, _H2, _P2, allocator_type>&& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + __table_.__node_handle_merge_unique(__source.__table_); + } + template<class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_multiset<key_type, _H2, _P2, allocator_type>& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + __table_.__node_handle_merge_unique(__source.__table_); + } + template<class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_multiset<key_type, _H2, _P2, allocator_type>&& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + __table_.__node_handle_merge_unique(__source.__table_); + } +#endif + + _LIBCPP_INLINE_VISIBILITY + void swap(unordered_set& __u) + _NOEXCEPT_(__is_nothrow_swappable<__table>::value) + {__table_.swap(__u.__table_);} + + _LIBCPP_INLINE_VISIBILITY + hasher hash_function() const {return __table_.hash_function();} + _LIBCPP_INLINE_VISIBILITY + key_equal key_eq() const {return __table_.key_eq();} + + _LIBCPP_INLINE_VISIBILITY + iterator find(const key_type& __k) {return __table_.find(__k);} + _LIBCPP_INLINE_VISIBILITY + const_iterator find(const key_type& __k) const {return __table_.find(__k);} + _LIBCPP_INLINE_VISIBILITY + size_type count(const key_type& __k) const {return __table_.__count_unique(__k);} + #if _LIBCPP_STD_VER > 17 + _LIBCPP_INLINE_VISIBILITY + bool contains(const key_type& __k) const {return find(__k) != end();} + #endif // _LIBCPP_STD_VER > 17 + _LIBCPP_INLINE_VISIBILITY + pair<iterator, iterator> equal_range(const key_type& __k) + {return __table_.__equal_range_unique(__k);} + _LIBCPP_INLINE_VISIBILITY + pair<const_iterator, const_iterator> equal_range(const key_type& __k) const + {return __table_.__equal_range_unique(__k);} + + _LIBCPP_INLINE_VISIBILITY + size_type bucket_count() const _NOEXCEPT {return __table_.bucket_count();} + _LIBCPP_INLINE_VISIBILITY + size_type max_bucket_count() const _NOEXCEPT {return __table_.max_bucket_count();} + + _LIBCPP_INLINE_VISIBILITY + size_type bucket_size(size_type __n) const {return __table_.bucket_size(__n);} + _LIBCPP_INLINE_VISIBILITY + size_type bucket(const key_type& __k) const {return __table_.bucket(__k);} + + _LIBCPP_INLINE_VISIBILITY + local_iterator begin(size_type __n) {return __table_.begin(__n);} + _LIBCPP_INLINE_VISIBILITY + local_iterator end(size_type __n) {return __table_.end(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator begin(size_type __n) const {return __table_.cbegin(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator end(size_type __n) const {return __table_.cend(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator cbegin(size_type __n) const {return __table_.cbegin(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator cend(size_type __n) const {return __table_.cend(__n);} + + _LIBCPP_INLINE_VISIBILITY + float load_factor() const _NOEXCEPT {return __table_.load_factor();} + _LIBCPP_INLINE_VISIBILITY + float max_load_factor() const _NOEXCEPT {return __table_.max_load_factor();} + _LIBCPP_INLINE_VISIBILITY + void max_load_factor(float __mlf) {__table_.max_load_factor(__mlf);} + _LIBCPP_INLINE_VISIBILITY + void rehash(size_type __n) {__table_.rehash(__n);} + _LIBCPP_INLINE_VISIBILITY + void reserve(size_type __n) {__table_.reserve(__n);} + +#if _LIBCPP_DEBUG_LEVEL >= 2 + + bool __dereferenceable(const const_iterator* __i) const + {return __table_.__dereferenceable(__i);} + bool __decrementable(const const_iterator* __i) const + {return __table_.__decrementable(__i);} + bool __addable(const const_iterator* __i, ptrdiff_t __n) const + {return __table_.__addable(__i, __n);} + bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const + {return __table_.__addable(__i, __n);} + +#endif // _LIBCPP_DEBUG_LEVEL >= 2 + +}; + +#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES +template<class _InputIterator, + class _Hash = hash<__iter_value_type<_InputIterator>>, + class _Pred = equal_to<__iter_value_type<_InputIterator>>, + class _Allocator = allocator<__iter_value_type<_InputIterator>>, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<!__is_allocator<_Pred>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_set(_InputIterator, _InputIterator, typename allocator_traits<_Allocator>::size_type = 0, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_set<__iter_value_type<_InputIterator>, _Hash, _Pred, _Allocator>; + +template<class _Tp, class _Hash = hash<_Tp>, + class _Pred = equal_to<_Tp>, + class _Allocator = allocator<_Tp>, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<!__is_allocator<_Pred>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_set(initializer_list<_Tp>, typename allocator_traits<_Allocator>::size_type = 0, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_set<_Tp, _Hash, _Pred, _Allocator>; + +template<class _InputIterator, class _Allocator, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_set(_InputIterator, _InputIterator, + typename allocator_traits<_Allocator>::size_type, _Allocator) + -> unordered_set<__iter_value_type<_InputIterator>, + hash<__iter_value_type<_InputIterator>>, + equal_to<__iter_value_type<_InputIterator>>, + _Allocator>; + +template<class _InputIterator, class _Hash, class _Allocator, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_set(_InputIterator, _InputIterator, + typename allocator_traits<_Allocator>::size_type, _Hash, _Allocator) + -> unordered_set<__iter_value_type<_InputIterator>, _Hash, + equal_to<__iter_value_type<_InputIterator>>, + _Allocator>; + +template<class _Tp, class _Allocator, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_set(initializer_list<_Tp>, typename allocator_traits<_Allocator>::size_type, _Allocator) + -> unordered_set<_Tp, hash<_Tp>, equal_to<_Tp>, _Allocator>; + +template<class _Tp, class _Hash, class _Allocator, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_set(initializer_list<_Tp>, typename allocator_traits<_Allocator>::size_type, _Hash, _Allocator) + -> unordered_set<_Tp, _Hash, equal_to<_Tp>, _Allocator>; +#endif + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(size_type __n, + const hasher& __hf, const key_equal& __eql) + : __table_(__hf, __eql) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(size_type __n, + const hasher& __hf, const key_equal& __eql, const allocator_type& __a) + : __table_(__hf, __eql, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + _InputIterator __first, _InputIterator __last) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + insert(__first, __last); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + _InputIterator __first, _InputIterator __last, size_type __n, + const hasher& __hf, const key_equal& __eql) + : __table_(__hf, __eql) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__first, __last); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + _InputIterator __first, _InputIterator __last, size_type __n, + const hasher& __hf, const key_equal& __eql, const allocator_type& __a) + : __table_(__hf, __eql, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__first, __last); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + const allocator_type& __a) + : __table_(__a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + const unordered_set& __u) + : __table_(__u.__table_) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__u.bucket_count()); + insert(__u.begin(), __u.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + const unordered_set& __u, const allocator_type& __a) + : __table_(__u.__table_, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__u.bucket_count()); + insert(__u.begin(), __u.end()); +} + +#ifndef _LIBCPP_CXX03_LANG + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + unordered_set&& __u) + _NOEXCEPT_(is_nothrow_move_constructible<__table>::value) + : __table_(_VSTD::move(__u.__table_)) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); + __get_db()->swap(this, &__u); +#endif +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + unordered_set&& __u, const allocator_type& __a) + : __table_(_VSTD::move(__u.__table_), __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + if (__a != __u.get_allocator()) + { + iterator __i = __u.begin(); + while (__u.size() != 0) + __table_.__insert_unique(_VSTD::move(__u.__table_.remove(__i++)->__value_)); + } +#if _LIBCPP_DEBUG_LEVEL >= 2 + else + __get_db()->swap(this, &__u); +#endif +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + initializer_list<value_type> __il) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + insert(__il.begin(), __il.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + initializer_list<value_type> __il, size_type __n, const hasher& __hf, + const key_equal& __eql) + : __table_(__hf, __eql) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__il.begin(), __il.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set( + initializer_list<value_type> __il, size_type __n, const hasher& __hf, + const key_equal& __eql, const allocator_type& __a) + : __table_(__hf, __eql, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__il.begin(), __il.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_set<_Value, _Hash, _Pred, _Alloc>& +unordered_set<_Value, _Hash, _Pred, _Alloc>::operator=(unordered_set&& __u) + _NOEXCEPT_(is_nothrow_move_assignable<__table>::value) +{ + __table_ = _VSTD::move(__u.__table_); + return *this; +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_set<_Value, _Hash, _Pred, _Alloc>& +unordered_set<_Value, _Hash, _Pred, _Alloc>::operator=( + initializer_list<value_type> __il) +{ + __table_.__assign_unique(__il.begin(), __il.end()); + return *this; +} + +#endif // _LIBCPP_CXX03_LANG + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +inline +void +unordered_set<_Value, _Hash, _Pred, _Alloc>::insert(_InputIterator __first, + _InputIterator __last) +{ + for (; __first != __last; ++__first) + __table_.__insert_unique(*__first); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline _LIBCPP_INLINE_VISIBILITY +void +swap(unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, + unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) + _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) +{ + __x.swap(__y); +} + +#if _LIBCPP_STD_VER > 17 +template <class _Value, class _Hash, class _Pred, class _Alloc, class _Predicate> +inline _LIBCPP_INLINE_VISIBILITY +void erase_if(unordered_set<_Value, _Hash, _Pred, _Alloc>& __c, _Predicate __pred) +{ __libcpp_erase_if_container(__c, __pred); } +#endif + +template <class _Value, class _Hash, class _Pred, class _Alloc> +bool +operator==(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) +{ + if (__x.size() != __y.size()) + return false; + typedef typename unordered_set<_Value, _Hash, _Pred, _Alloc>::const_iterator + const_iterator; + for (const_iterator __i = __x.begin(), __ex = __x.end(), __ey = __y.end(); + __i != __ex; ++__i) + { + const_iterator __j = __y.find(*__i); + if (__j == __ey || !(*__i == *__j)) + return false; + } + return true; +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline _LIBCPP_INLINE_VISIBILITY +bool +operator!=(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) +{ + return !(__x == __y); +} + +template <class _Value, class _Hash = hash<_Value>, class _Pred = equal_to<_Value>, + class _Alloc = allocator<_Value> > +class _LIBCPP_TEMPLATE_VIS unordered_multiset +{ +public: + // types + typedef _Value key_type; + typedef key_type value_type; + typedef typename __identity<_Hash>::type hasher; + typedef typename __identity<_Pred>::type key_equal; + typedef typename __identity<_Alloc>::type allocator_type; + typedef value_type& reference; + typedef const value_type& const_reference; + static_assert((is_same<value_type, typename allocator_type::value_type>::value), + "Invalid allocator::value_type"); + +private: + typedef __hash_table<value_type, hasher, key_equal, allocator_type> __table; + + __table __table_; + +public: + typedef typename __table::pointer pointer; + typedef typename __table::const_pointer const_pointer; + typedef typename __table::size_type size_type; + typedef typename __table::difference_type difference_type; + + typedef typename __table::const_iterator iterator; + typedef typename __table::const_iterator const_iterator; + typedef typename __table::const_local_iterator local_iterator; + typedef typename __table::const_local_iterator const_local_iterator; + +#if _LIBCPP_STD_VER > 14 + typedef __set_node_handle<typename __table::__node, allocator_type> node_type; +#endif + + template <class _Value2, class _Hash2, class _Pred2, class _Alloc2> + friend class _LIBCPP_TEMPLATE_VIS unordered_set; + template <class _Value2, class _Hash2, class _Pred2, class _Alloc2> + friend class _LIBCPP_TEMPLATE_VIS unordered_multiset; + + _LIBCPP_INLINE_VISIBILITY + unordered_multiset() + _NOEXCEPT_(is_nothrow_default_constructible<__table>::value) + { +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + } + explicit unordered_multiset(size_type __n, const hasher& __hf = hasher(), + const key_equal& __eql = key_equal()); + unordered_multiset(size_type __n, const hasher& __hf, + const key_equal& __eql, const allocator_type& __a); +#if _LIBCPP_STD_VER > 11 + inline _LIBCPP_INLINE_VISIBILITY + unordered_multiset(size_type __n, const allocator_type& __a) + : unordered_multiset(__n, hasher(), key_equal(), __a) {} + inline _LIBCPP_INLINE_VISIBILITY + unordered_multiset(size_type __n, const hasher& __hf, const allocator_type& __a) + : unordered_multiset(__n, __hf, key_equal(), __a) {} +#endif + template <class _InputIterator> + unordered_multiset(_InputIterator __first, _InputIterator __last); + template <class _InputIterator> + unordered_multiset(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf = hasher(), + const key_equal& __eql = key_equal()); + template <class _InputIterator> + unordered_multiset(_InputIterator __first, _InputIterator __last, + size_type __n , const hasher& __hf, + const key_equal& __eql, const allocator_type& __a); +#if _LIBCPP_STD_VER > 11 + template <class _InputIterator> + inline _LIBCPP_INLINE_VISIBILITY + unordered_multiset(_InputIterator __first, _InputIterator __last, + size_type __n, const allocator_type& __a) + : unordered_multiset(__first, __last, __n, hasher(), key_equal(), __a) {} + template <class _InputIterator> + inline _LIBCPP_INLINE_VISIBILITY + unordered_multiset(_InputIterator __first, _InputIterator __last, + size_type __n, const hasher& __hf, const allocator_type& __a) + : unordered_multiset(__first, __last, __n, __hf, key_equal(), __a) {} +#endif + _LIBCPP_INLINE_VISIBILITY + explicit unordered_multiset(const allocator_type& __a); + unordered_multiset(const unordered_multiset& __u); + unordered_multiset(const unordered_multiset& __u, const allocator_type& __a); +#ifndef _LIBCPP_CXX03_LANG + _LIBCPP_INLINE_VISIBILITY + unordered_multiset(unordered_multiset&& __u) + _NOEXCEPT_(is_nothrow_move_constructible<__table>::value); + unordered_multiset(unordered_multiset&& __u, const allocator_type& __a); + unordered_multiset(initializer_list<value_type> __il); + unordered_multiset(initializer_list<value_type> __il, size_type __n, + const hasher& __hf = hasher(), + const key_equal& __eql = key_equal()); + unordered_multiset(initializer_list<value_type> __il, size_type __n, + const hasher& __hf, const key_equal& __eql, + const allocator_type& __a); +#if _LIBCPP_STD_VER > 11 + inline _LIBCPP_INLINE_VISIBILITY + unordered_multiset(initializer_list<value_type> __il, size_type __n, const allocator_type& __a) + : unordered_multiset(__il, __n, hasher(), key_equal(), __a) {} + inline _LIBCPP_INLINE_VISIBILITY + unordered_multiset(initializer_list<value_type> __il, size_type __n, const hasher& __hf, const allocator_type& __a) + : unordered_multiset(__il, __n, __hf, key_equal(), __a) {} +#endif +#endif // _LIBCPP_CXX03_LANG + _LIBCPP_INLINE_VISIBILITY + ~unordered_multiset() { + static_assert(sizeof(__diagnose_unordered_container_requirements<_Value, _Hash, _Pred>(0)), ""); + } + + _LIBCPP_INLINE_VISIBILITY + unordered_multiset& operator=(const unordered_multiset& __u) + { + __table_ = __u.__table_; + return *this; + } +#ifndef _LIBCPP_CXX03_LANG + _LIBCPP_INLINE_VISIBILITY + unordered_multiset& operator=(unordered_multiset&& __u) + _NOEXCEPT_(is_nothrow_move_assignable<__table>::value); + unordered_multiset& operator=(initializer_list<value_type> __il); +#endif // _LIBCPP_CXX03_LANG + + _LIBCPP_INLINE_VISIBILITY + allocator_type get_allocator() const _NOEXCEPT + {return allocator_type(__table_.__node_alloc());} + + _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY + bool empty() const _NOEXCEPT {return __table_.size() == 0;} + _LIBCPP_INLINE_VISIBILITY + size_type size() const _NOEXCEPT {return __table_.size();} + _LIBCPP_INLINE_VISIBILITY + size_type max_size() const _NOEXCEPT {return __table_.max_size();} + + _LIBCPP_INLINE_VISIBILITY + iterator begin() _NOEXCEPT {return __table_.begin();} + _LIBCPP_INLINE_VISIBILITY + iterator end() _NOEXCEPT {return __table_.end();} + _LIBCPP_INLINE_VISIBILITY + const_iterator begin() const _NOEXCEPT {return __table_.begin();} + _LIBCPP_INLINE_VISIBILITY + const_iterator end() const _NOEXCEPT {return __table_.end();} + _LIBCPP_INLINE_VISIBILITY + const_iterator cbegin() const _NOEXCEPT {return __table_.begin();} + _LIBCPP_INLINE_VISIBILITY + const_iterator cend() const _NOEXCEPT {return __table_.end();} + +#ifndef _LIBCPP_CXX03_LANG + template <class... _Args> + _LIBCPP_INLINE_VISIBILITY + iterator emplace(_Args&&... __args) + {return __table_.__emplace_multi(_VSTD::forward<_Args>(__args)...);} + template <class... _Args> + _LIBCPP_INLINE_VISIBILITY + iterator emplace_hint(const_iterator __p, _Args&&... __args) + {return __table_.__emplace_hint_multi(__p, _VSTD::forward<_Args>(__args)...);} + + _LIBCPP_INLINE_VISIBILITY + iterator insert(value_type&& __x) {return __table_.__insert_multi(_VSTD::move(__x));} + _LIBCPP_INLINE_VISIBILITY + iterator insert(const_iterator __p, value_type&& __x) + {return __table_.__insert_multi(__p, _VSTD::move(__x));} + _LIBCPP_INLINE_VISIBILITY + void insert(initializer_list<value_type> __il) + {insert(__il.begin(), __il.end());} +#endif // _LIBCPP_CXX03_LANG + + _LIBCPP_INLINE_VISIBILITY + iterator insert(const value_type& __x) {return __table_.__insert_multi(__x);} + + _LIBCPP_INLINE_VISIBILITY + iterator insert(const_iterator __p, const value_type& __x) + {return __table_.__insert_multi(__p, __x);} + + template <class _InputIterator> + _LIBCPP_INLINE_VISIBILITY + void insert(_InputIterator __first, _InputIterator __last); + +#if _LIBCPP_STD_VER > 14 + _LIBCPP_INLINE_VISIBILITY + iterator insert(node_type&& __nh) + { + _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(), + "node_type with incompatible allocator passed to unordered_multiset::insert()"); + return __table_.template __node_handle_insert_multi<node_type>( + _VSTD::move(__nh)); + } + _LIBCPP_INLINE_VISIBILITY + iterator insert(const_iterator __hint, node_type&& __nh) + { + _LIBCPP_ASSERT(__nh.empty() || __nh.get_allocator() == get_allocator(), + "node_type with incompatible allocator passed to unordered_multiset::insert()"); + return __table_.template __node_handle_insert_multi<node_type>( + __hint, _VSTD::move(__nh)); + } + _LIBCPP_INLINE_VISIBILITY + node_type extract(const_iterator __position) + { + return __table_.template __node_handle_extract<node_type>( + __position); + } + _LIBCPP_INLINE_VISIBILITY + node_type extract(key_type const& __key) + { + return __table_.template __node_handle_extract<node_type>(__key); + } + + template <class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_multiset<key_type, _H2, _P2, allocator_type>& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + return __table_.__node_handle_merge_multi(__source.__table_); + } + template <class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_multiset<key_type, _H2, _P2, allocator_type>&& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + return __table_.__node_handle_merge_multi(__source.__table_); + } + template <class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_set<key_type, _H2, _P2, allocator_type>& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + return __table_.__node_handle_merge_multi(__source.__table_); + } + template <class _H2, class _P2> + _LIBCPP_INLINE_VISIBILITY + void merge(unordered_set<key_type, _H2, _P2, allocator_type>&& __source) + { + _LIBCPP_ASSERT(__source.get_allocator() == get_allocator(), + "merging container with incompatible allocator"); + return __table_.__node_handle_merge_multi(__source.__table_); + } +#endif + + _LIBCPP_INLINE_VISIBILITY + iterator erase(const_iterator __p) {return __table_.erase(__p);} + _LIBCPP_INLINE_VISIBILITY + size_type erase(const key_type& __k) {return __table_.__erase_multi(__k);} + _LIBCPP_INLINE_VISIBILITY + iterator erase(const_iterator __first, const_iterator __last) + {return __table_.erase(__first, __last);} + _LIBCPP_INLINE_VISIBILITY + void clear() _NOEXCEPT {__table_.clear();} + + _LIBCPP_INLINE_VISIBILITY + void swap(unordered_multiset& __u) + _NOEXCEPT_(__is_nothrow_swappable<__table>::value) + {__table_.swap(__u.__table_);} + + _LIBCPP_INLINE_VISIBILITY + hasher hash_function() const {return __table_.hash_function();} + _LIBCPP_INLINE_VISIBILITY + key_equal key_eq() const {return __table_.key_eq();} + + _LIBCPP_INLINE_VISIBILITY + iterator find(const key_type& __k) {return __table_.find(__k);} + _LIBCPP_INLINE_VISIBILITY + const_iterator find(const key_type& __k) const {return __table_.find(__k);} + _LIBCPP_INLINE_VISIBILITY + size_type count(const key_type& __k) const {return __table_.__count_multi(__k);} + #if _LIBCPP_STD_VER > 17 + _LIBCPP_INLINE_VISIBILITY + bool contains(const key_type& __k) const {return find(__k) != end();} + #endif // _LIBCPP_STD_VER > 17 + _LIBCPP_INLINE_VISIBILITY + pair<iterator, iterator> equal_range(const key_type& __k) + {return __table_.__equal_range_multi(__k);} + _LIBCPP_INLINE_VISIBILITY + pair<const_iterator, const_iterator> equal_range(const key_type& __k) const + {return __table_.__equal_range_multi(__k);} + + _LIBCPP_INLINE_VISIBILITY + size_type bucket_count() const _NOEXCEPT {return __table_.bucket_count();} + _LIBCPP_INLINE_VISIBILITY + size_type max_bucket_count() const _NOEXCEPT {return __table_.max_bucket_count();} + + _LIBCPP_INLINE_VISIBILITY + size_type bucket_size(size_type __n) const {return __table_.bucket_size(__n);} + _LIBCPP_INLINE_VISIBILITY + size_type bucket(const key_type& __k) const {return __table_.bucket(__k);} + + _LIBCPP_INLINE_VISIBILITY + local_iterator begin(size_type __n) {return __table_.begin(__n);} + _LIBCPP_INLINE_VISIBILITY + local_iterator end(size_type __n) {return __table_.end(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator begin(size_type __n) const {return __table_.cbegin(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator end(size_type __n) const {return __table_.cend(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator cbegin(size_type __n) const {return __table_.cbegin(__n);} + _LIBCPP_INLINE_VISIBILITY + const_local_iterator cend(size_type __n) const {return __table_.cend(__n);} + + _LIBCPP_INLINE_VISIBILITY + float load_factor() const _NOEXCEPT {return __table_.load_factor();} + _LIBCPP_INLINE_VISIBILITY + float max_load_factor() const _NOEXCEPT {return __table_.max_load_factor();} + _LIBCPP_INLINE_VISIBILITY + void max_load_factor(float __mlf) {__table_.max_load_factor(__mlf);} + _LIBCPP_INLINE_VISIBILITY + void rehash(size_type __n) {__table_.rehash(__n);} + _LIBCPP_INLINE_VISIBILITY + void reserve(size_type __n) {__table_.reserve(__n);} + +#if _LIBCPP_DEBUG_LEVEL >= 2 + + bool __dereferenceable(const const_iterator* __i) const + {return __table_.__dereferenceable(__i);} + bool __decrementable(const const_iterator* __i) const + {return __table_.__decrementable(__i);} + bool __addable(const const_iterator* __i, ptrdiff_t __n) const + {return __table_.__addable(__i, __n);} + bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const + {return __table_.__addable(__i, __n);} + +#endif // _LIBCPP_DEBUG_LEVEL >= 2 + +}; + +#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES +template<class _InputIterator, + class _Hash = hash<__iter_value_type<_InputIterator>>, + class _Pred = equal_to<__iter_value_type<_InputIterator>>, + class _Allocator = allocator<__iter_value_type<_InputIterator>>, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<!__is_allocator<_Pred>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_multiset(_InputIterator, _InputIterator, typename allocator_traits<_Allocator>::size_type = 0, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_multiset<__iter_value_type<_InputIterator>, _Hash, _Pred, _Allocator>; + +template<class _Tp, class _Hash = hash<_Tp>, + class _Pred = equal_to<_Tp>, class _Allocator = allocator<_Tp>, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<!__is_allocator<_Pred>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_multiset(initializer_list<_Tp>, typename allocator_traits<_Allocator>::size_type = 0, + _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) + -> unordered_multiset<_Tp, _Hash, _Pred, _Allocator>; + +template<class _InputIterator, class _Allocator, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_multiset(_InputIterator, _InputIterator, typename allocator_traits<_Allocator>::size_type, _Allocator) + -> unordered_multiset<__iter_value_type<_InputIterator>, + hash<__iter_value_type<_InputIterator>>, + equal_to<__iter_value_type<_InputIterator>>, + _Allocator>; + +template<class _InputIterator, class _Hash, class _Allocator, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_multiset(_InputIterator, _InputIterator, typename allocator_traits<_Allocator>::size_type, + _Hash, _Allocator) + -> unordered_multiset<__iter_value_type<_InputIterator>, _Hash, + equal_to<__iter_value_type<_InputIterator>>, + _Allocator>; + +template<class _Tp, class _Allocator, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_multiset(initializer_list<_Tp>, typename allocator_traits<_Allocator>::size_type, _Allocator) + -> unordered_multiset<_Tp, hash<_Tp>, equal_to<_Tp>, _Allocator>; + +template<class _Tp, class _Hash, class _Allocator, + class = _EnableIf<!__is_allocator<_Hash>::value>, + class = _EnableIf<!is_integral<_Hash>::value>, + class = _EnableIf<__is_allocator<_Allocator>::value>> +unordered_multiset(initializer_list<_Tp>, typename allocator_traits<_Allocator>::size_type, _Hash, _Allocator) + -> unordered_multiset<_Tp, _Hash, equal_to<_Tp>, _Allocator>; +#endif + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + size_type __n, const hasher& __hf, const key_equal& __eql) + : __table_(__hf, __eql) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + size_type __n, const hasher& __hf, const key_equal& __eql, + const allocator_type& __a) + : __table_(__hf, __eql, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + _InputIterator __first, _InputIterator __last) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + insert(__first, __last); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + _InputIterator __first, _InputIterator __last, size_type __n, + const hasher& __hf, const key_equal& __eql) + : __table_(__hf, __eql) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__first, __last); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + _InputIterator __first, _InputIterator __last, size_type __n, + const hasher& __hf, const key_equal& __eql, const allocator_type& __a) + : __table_(__hf, __eql, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__first, __last); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + const allocator_type& __a) + : __table_(__a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + const unordered_multiset& __u) + : __table_(__u.__table_) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__u.bucket_count()); + insert(__u.begin(), __u.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + const unordered_multiset& __u, const allocator_type& __a) + : __table_(__u.__table_, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__u.bucket_count()); + insert(__u.begin(), __u.end()); +} + +#ifndef _LIBCPP_CXX03_LANG + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + unordered_multiset&& __u) + _NOEXCEPT_(is_nothrow_move_constructible<__table>::value) + : __table_(_VSTD::move(__u.__table_)) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); + __get_db()->swap(this, &__u); +#endif +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + unordered_multiset&& __u, const allocator_type& __a) + : __table_(_VSTD::move(__u.__table_), __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + if (__a != __u.get_allocator()) + { + iterator __i = __u.begin(); + while (__u.size() != 0) + __table_.__insert_multi(_VSTD::move(__u.__table_.remove(__i++)->__value_)); + } +#if _LIBCPP_DEBUG_LEVEL >= 2 + else + __get_db()->swap(this, &__u); +#endif +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + initializer_list<value_type> __il) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + insert(__il.begin(), __il.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + initializer_list<value_type> __il, size_type __n, const hasher& __hf, + const key_equal& __eql) + : __table_(__hf, __eql) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__il.begin(), __il.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( + initializer_list<value_type> __il, size_type __n, const hasher& __hf, + const key_equal& __eql, const allocator_type& __a) + : __table_(__hf, __eql, __a) +{ +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif + __table_.rehash(__n); + insert(__il.begin(), __il.end()); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_multiset<_Value, _Hash, _Pred, _Alloc>& +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::operator=( + unordered_multiset&& __u) + _NOEXCEPT_(is_nothrow_move_assignable<__table>::value) +{ + __table_ = _VSTD::move(__u.__table_); + return *this; +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline +unordered_multiset<_Value, _Hash, _Pred, _Alloc>& +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::operator=( + initializer_list<value_type> __il) +{ + __table_.__assign_multi(__il.begin(), __il.end()); + return *this; +} + +#endif // _LIBCPP_CXX03_LANG + +template <class _Value, class _Hash, class _Pred, class _Alloc> +template <class _InputIterator> +inline +void +unordered_multiset<_Value, _Hash, _Pred, _Alloc>::insert(_InputIterator __first, + _InputIterator __last) +{ + for (; __first != __last; ++__first) + __table_.__insert_multi(*__first); +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline _LIBCPP_INLINE_VISIBILITY +void +swap(unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, + unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) + _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) +{ + __x.swap(__y); +} + +#if _LIBCPP_STD_VER > 17 +template <class _Value, class _Hash, class _Pred, class _Alloc, class _Predicate> +inline _LIBCPP_INLINE_VISIBILITY +void erase_if(unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __c, _Predicate __pred) +{ __libcpp_erase_if_container(__c, __pred); } +#endif + +template <class _Value, class _Hash, class _Pred, class _Alloc> +bool +operator==(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) +{ + if (__x.size() != __y.size()) + return false; + typedef typename unordered_multiset<_Value, _Hash, _Pred, _Alloc>::const_iterator + const_iterator; + typedef pair<const_iterator, const_iterator> _EqRng; + for (const_iterator __i = __x.begin(), __ex = __x.end(); __i != __ex;) + { + _EqRng __xeq = __x.equal_range(*__i); + _EqRng __yeq = __y.equal_range(*__i); + if (_VSTD::distance(__xeq.first, __xeq.second) != + _VSTD::distance(__yeq.first, __yeq.second) || + !_VSTD::is_permutation(__xeq.first, __xeq.second, __yeq.first)) + return false; + __i = __xeq.second; + } + return true; +} + +template <class _Value, class _Hash, class _Pred, class _Alloc> +inline _LIBCPP_INLINE_VISIBILITY +bool +operator!=(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, + const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) +{ + return !(__x == __y); +} + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP_UNORDERED_SET |