// -*- C++ -*- //===----------------------------------------------------------------------===// // // 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 // clang-format off /* 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()); template<container-compatible-range<value_type> R> unordered_set(from_range_t, R&& rg, size_type n = see below, const hasher& hf = hasher(), const key_equal& eql = key_equal(), const allocator_type& a = allocator_type()); // C++23 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 template<container-compatible-range<value_type> R> unordered_set(from_range_t, R&& rg, size_type n, const allocator_type& a) : unordered_set(from_range, std::forward<R>(rg), n, hasher(), key_equal(), a) { } // C++23 template<container-compatible-range<value_type> R> unordered_set(from_range_t, R&& rg, size_type n, const hasher& hf, const allocator_type& a) : unordered_set(from_range, std::forward<R>(rg), n, hf, key_equal(), a) { } // C++23 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); template<container-compatible-range<value_type> R> void insert_range(R&& rg); // C++23 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; template<typename K> iterator find(const K& x); // C++20 template<typename K> const_iterator find(const K& x) const; // C++20 size_type count(const key_type& k) const; template<typename K> size_type count(const K& k) const; // C++20 bool contains(const key_type& k) const; // C++20 template<typename K> bool contains(const K& 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; template<typename K> pair<iterator, iterator> equal_range(const K& k); // C++20 template<typename K> pair<const_iterator, const_iterator> equal_range(const K& k) const; // C++20 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 InputIterator, class Hash = hash<typename iterator_traits<InputIterator>::value_type>, class Pred = equal_to<typename iterator_traits<InputIterator>::value_type>, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>> unordered_set(InputIterator, InputIterator, typename see below::size_type = see below, Hash = Hash(), Pred = Pred(), Allocator = Allocator()) -> unordered_set<typename iterator_traits<InputIterator>::value_type, Hash, Pred, Allocator>; // C++17 template<ranges::input_range R, class Hash = hash<ranges::range_value_t<R>>, class Pred = equal_to<ranges::range_value_t<R>>, class Allocator = allocator<ranges::range_value_t<R>>> unordered_set(from_range_t, R&&, typename see below::size_type = see below, Hash = Hash(), Pred = Pred(), Allocator = Allocator()) -> unordered_set<ranges::range_value_t<R>, Hash, Pred, Allocator>; // C++23 template<class T, class Hash = hash<T>, class Pred = equal_to<T>, class Allocator = allocator<T>> unordered_set(initializer_list<T>, typename see below::size_type = see below, Hash = Hash(), Pred = Pred(), Allocator = Allocator()) -> unordered_set<T, Hash, Pred, Allocator>; // C++17 template<class InputIterator, class Allocator> unordered_set(InputIterator, InputIterator, typename see below::size_type, Allocator) -> unordered_set<typename iterator_traits<InputIterator>::value_type, hash<typename iterator_traits<InputIterator>::value_type>, equal_to<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17 template<class InputIterator, class Hash, class Allocator> unordered_set(InputIterator, InputIterator, typename see below::size_type, Hash, Allocator) -> unordered_set<typename iterator_traits<InputIterator>::value_type, Hash, equal_to<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17 template<ranges::input_range R, class Allocator> unordered_set(from_range_t, R&&, typename see below::size_type, Allocator) -> unordered_set<ranges::range_value_t<R>, hash<ranges::range_value_t<R>>, equal_to<ranges::range_value_t<R>>, Allocator>; // C++23 template<ranges::input_range R, class Allocator> unordered_set(from_range_t, R&&, Allocator) -> unordered_set<ranges::range_value_t<R>, hash<ranges::range_value_t<R>>, equal_to<ranges::range_value_t<R>>, Allocator>; // C++23 template<ranges::input_range R, class Hash, class Allocator> unordered_set(from_range_t, R&&, typename see below::size_type, Hash, Allocator) -> unordered_set<ranges::range_value_t<R>, Hash, equal_to<ranges::range_value_t<R>>, Allocator>; // C++23 template<class T, class Allocator> unordered_set(initializer_list<T>, typename see below::size_type, Allocator) -> unordered_set<T, hash<T>, equal_to<T>, Allocator>; // C++17 template<class T, class Hash, class Allocator> unordered_set(initializer_list<T>, typename see below::size_type, Hash, Allocator) -> unordered_set<T, Hash, equal_to<T>, Allocator>; // C++17 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); // removed in C++20 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()); template<container-compatible-range<value_type> R> unordered_multiset(from_range_t, R&& rg, size_type n = see below, const hasher& hf = hasher(), const key_equal& eql = key_equal(), const allocator_type& a = allocator_type()); // C++23 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 template<container-compatible-range<value_type> R> unordered_multiset(from_range_t, R&& rg, size_type n, const allocator_type& a) : unordered_multiset(from_range, std::forward<R>(rg), n, hasher(), key_equal(), a) { } // C++23 template<container-compatible-range<value_type> R> unordered_multiset(from_range_t, R&& rg, size_type n, const hasher& hf, const allocator_type& a) : unordered_multiset(from_range, std::forward<R>(rg), n, hf, key_equal(), a) { } // C++23 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); template<container-compatible-range<value_type> R> void insert_range(R&& rg); // C++23 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; template<typename K> iterator find(const K& x); // C++20 template<typename K> const_iterator find(const K& x) const; // C++20 size_type count(const key_type& k) const; template<typename K> size_type count(const K& k) const; // C++20 bool contains(const key_type& k) const; // C++20 template<typename K> bool contains(const K& 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; template<typename K> pair<iterator, iterator> equal_range(const K& k); // C++20 template<typename K> pair<const_iterator, const_iterator> equal_range(const K& k) const; // C++20 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 InputIterator, class Hash = hash<typename iterator_traits<InputIterator>::value_type>, class Pred = equal_to<typename iterator_traits<InputIterator>::value_type>, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>> unordered_multiset(InputIterator, InputIterator, see below::size_type = see below, Hash = Hash(), Pred = Pred(), Allocator = Allocator()) -> unordered_multiset<typename iterator_traits<InputIterator>::value_type, Hash, Pred, Allocator>; // C++17 template<ranges::input_range R, class Hash = hash<ranges::range_value_t<R>>, class Pred = equal_to<ranges::range_value_t<R>>, class Allocator = allocator<ranges::range_value_t<R>>> unordered_multiset(from_range_t, R&&, typename see below::size_type = see below, Hash = Hash(), Pred = Pred(), Allocator = Allocator()) -> unordered_multiset<ranges::range_value_t<R>, Hash, Pred, Allocator>; // C++23 template<class T, class Hash = hash<T>, class Pred = equal_to<T>, class Allocator = allocator<T>> unordered_multiset(initializer_list<T>, typename see below::size_type = see below, Hash = Hash(), Pred = Pred(), Allocator = Allocator()) -> unordered_multiset<T, Hash, Pred, Allocator>; // C++17 template<class InputIterator, class Allocator> unordered_multiset(InputIterator, InputIterator, typename see below::size_type, Allocator) -> unordered_multiset<typename iterator_traits<InputIterator>::value_type, hash<typename iterator_traits<InputIterator>::value_type>, equal_to<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17 template<class InputIterator, class Hash, class Allocator> unordered_multiset(InputIterator, InputIterator, typename see below::size_type, Hash, Allocator) -> unordered_multiset<typename iterator_traits<InputIterator>::value_type, Hash, equal_to<typename iterator_traits<InputIterator>::value_type>, Allocator>; // C++17 template<ranges::input_range R, class Allocator> unordered_multiset(from_range_t, R&&, typename see below::size_type, Allocator) -> unordered_multiset<ranges::range_value_t<R>, hash<ranges::range_value_t<R>>, equal_to<ranges::range_value_t<R>>, Allocator>; // C++23 template<ranges::input_range R, class Allocator> unordered_multiset(from_range_t, R&&, Allocator) -> unordered_multiset<ranges::range_value_t<R>, hash<ranges::range_value_t<R>>, equal_to<ranges::range_value_t<R>>, Allocator>; // C++23 template<ranges::input_range R, class Hash, class Allocator> unordered_multiset(from_range_t, R&&, typename see below::size_type, Hash, Allocator) -> unordered_multiset<ranges::range_value_t<R>, Hash, equal_to<ranges::range_value_t<R>>, Allocator>; // C++23 template<class T, class Allocator> unordered_multiset(initializer_list<T>, typename see below::size_type, Allocator) -> unordered_multiset<T, hash<T>, equal_to<T>, Allocator>; // C++17 template<class T, class Hash, class Allocator> unordered_multiset(initializer_list<T>, typename see below::size_type, Hash, Allocator) -> unordered_multiset<T, Hash, equal_to<T>, Allocator>; // C++17 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> typename unordered_set<K, T, H, P, A>::size_type 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> typename unordered_multiset<K, T, H, P, A>::size_type 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); // removed in C++20 } // std */ // clang-format on #include <__algorithm/is_permutation.h> #include <__assert> #include <__config> #include <__functional/is_transparent.h> #include <__functional/operations.h> #include <__hash_table> #include <__iterator/distance.h> #include <__iterator/erase_if_container.h> #include <__iterator/iterator_traits.h> #include <__iterator/ranges_iterator_traits.h> #include <__memory/addressof.h> #include <__memory/allocator.h> #include <__memory_resource/polymorphic_allocator.h> #include <__node_handle> #include <__ranges/concepts.h> #include <__ranges/container_compatible_range.h> #include <__ranges/from_range.h> #include <__type_traits/is_allocator.h> #include <__utility/forward.h> #include <version> // standard-mandated includes // [iterator.range] #include <__iterator/access.h> #include <__iterator/data.h> #include <__iterator/empty.h> #include <__iterator/reverse_access.h> #include <__iterator/size.h> // [unord.set.syn] #include <compare> #include <initializer_list> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) # pragma GCC system_header #endif _LIBCPP_PUSH_MACROS #include <__undef_macros> _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 { … }; #if _LIBCPP_STD_VER >= 17 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 = enable_if_t<__has_input_iterator_category<_InputIterator>::value>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<!__is_allocator<_Pred>::value>, class = enable_if_t<__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>; # if _LIBCPP_STD_VER >= 23 template <ranges::input_range _Range, class _Hash = hash<ranges::range_value_t<_Range>>, class _Pred = equal_to<ranges::range_value_t<_Range>>, class _Allocator = allocator<ranges::range_value_t<_Range>>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<!__is_allocator<_Pred>::value>, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_set( from_range_t, _Range&&, typename allocator_traits<_Allocator>::size_type = 0, _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) -> unordered_set<ranges::range_value_t<_Range>, _Hash, _Pred, _Allocator>; // C++23 # endif template <class _Tp, class _Hash = hash<_Tp>, class _Pred = equal_to<_Tp>, class _Allocator = allocator<_Tp>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<!__is_allocator<_Pred>::value>, class = enable_if_t<__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 = enable_if_t<__has_input_iterator_category<_InputIterator>::value>, class = enable_if_t<__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 = enable_if_t<__has_input_iterator_category<_InputIterator>::value>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<__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>; # if _LIBCPP_STD_VER >= 23 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_set(from_range_t, _Range&&, typename allocator_traits<_Allocator>::size_type, _Allocator) -> unordered_set<ranges::range_value_t<_Range>, hash<ranges::range_value_t<_Range>>, equal_to<ranges::range_value_t<_Range>>, _Allocator>; template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_set(from_range_t, _Range&&, _Allocator) -> unordered_set<ranges::range_value_t<_Range>, hash<ranges::range_value_t<_Range>>, equal_to<ranges::range_value_t<_Range>>, _Allocator>; template <ranges::input_range _Range, class _Hash, class _Allocator, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_set(from_range_t, _Range&&, typename allocator_traits<_Allocator>::size_type, _Hash, _Allocator) -> unordered_set<ranges::range_value_t<_Range>, _Hash, equal_to<ranges::range_value_t<_Range>>, _Allocator>; # endif template <class _Tp, class _Allocator, class = enable_if_t<__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 = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<__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) : … { … } 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) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> template <class _InputIterator> unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(_InputIterator __first, _InputIterator __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) { … } 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) { … } template <class _Value, class _Hash, class _Pred, class _Alloc> inline unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(const allocator_type& __a) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(const unordered_set& __u) : … { … } 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) : … { … } #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) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(unordered_set&& __u, const allocator_type& __a) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> unordered_set<_Value, _Hash, _Pred, _Alloc>::unordered_set(initializer_list<value_type> __il) { … } 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) : … { … } 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) : … { … } 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) { … } 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) { … } #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) { … } template <class _Value, class _Hash, class _Pred, class _Alloc> inline _LIBCPP_HIDE_FROM_ABI void swap(unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) { … } #if _LIBCPP_STD_VER >= 20 template <class _Value, class _Hash, class _Pred, class _Alloc, class _Predicate> inline _LIBCPP_HIDE_FROM_ABI typename unordered_set<_Value, _Hash, _Pred, _Alloc>::size_type erase_if(unordered_set<_Value, _Hash, _Pred, _Alloc>& __c, _Predicate __pred) { … } #endif template <class _Value, class _Hash, class _Pred, class _Alloc> _LIBCPP_HIDE_FROM_ABI bool operator==(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) { … } #if _LIBCPP_STD_VER <= 17 template <class _Value, class _Hash, class _Pred, class _Alloc> inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x, const unordered_set<_Value, _Hash, _Pred, _Alloc>& __y) { return !(__x == __y); } #endif template <class _Value, class _Hash = hash<_Value>, class _Pred = equal_to<_Value>, class _Alloc = allocator<_Value> > class _LIBCPP_TEMPLATE_VIS unordered_multiset { … }; #if _LIBCPP_STD_VER >= 17 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 = enable_if_t<__has_input_iterator_category<_InputIterator>::value>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<!__is_allocator<_Pred>::value>, class = enable_if_t<__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>; # if _LIBCPP_STD_VER >= 23 template <ranges::input_range _Range, class _Hash = hash<ranges::range_value_t<_Range>>, class _Pred = equal_to<ranges::range_value_t<_Range>>, class _Allocator = allocator<ranges::range_value_t<_Range>>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<!__is_allocator<_Pred>::value>, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_multiset( from_range_t, _Range&&, typename allocator_traits<_Allocator>::size_type = 0, _Hash = _Hash(), _Pred = _Pred(), _Allocator = _Allocator()) -> unordered_multiset<ranges::range_value_t<_Range>, _Hash, _Pred, _Allocator>; // C++23 # endif template <class _Tp, class _Hash = hash<_Tp>, class _Pred = equal_to<_Tp>, class _Allocator = allocator<_Tp>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<!__is_allocator<_Pred>::value>, class = enable_if_t<__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 = enable_if_t<__has_input_iterator_category<_InputIterator>::value>, class = enable_if_t<__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 = enable_if_t<__has_input_iterator_category<_InputIterator>::value>, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<__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>; # if _LIBCPP_STD_VER >= 23 template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_multiset(from_range_t, _Range&&, typename allocator_traits<_Allocator>::size_type, _Allocator) -> unordered_multiset<ranges::range_value_t<_Range>, hash<ranges::range_value_t<_Range>>, equal_to<ranges::range_value_t<_Range>>, _Allocator>; template <ranges::input_range _Range, class _Allocator, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_multiset(from_range_t, _Range&&, _Allocator) -> unordered_multiset<ranges::range_value_t<_Range>, hash<ranges::range_value_t<_Range>>, equal_to<ranges::range_value_t<_Range>>, _Allocator>; template <ranges::input_range _Range, class _Hash, class _Allocator, class = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<__is_allocator<_Allocator>::value>> unordered_multiset(from_range_t, _Range&&, typename allocator_traits<_Allocator>::size_type, _Hash, _Allocator) -> unordered_multiset<ranges::range_value_t<_Range>, _Hash, equal_to<ranges::range_value_t<_Range>>, _Allocator>; # endif template <class _Tp, class _Allocator, class = enable_if_t<__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 = enable_if_t<!__is_allocator<_Hash>::value>, class = enable_if_t<!is_integral<_Hash>::value>, class = enable_if_t<__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) : … { … } 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) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> template <class _InputIterator> unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset(_InputIterator __first, _InputIterator __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) { … } 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) { … } template <class _Value, class _Hash, class _Pred, class _Alloc> inline unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset(const allocator_type& __a) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset(const unordered_multiset& __u) : … { … } 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) : … { … } #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) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset( unordered_multiset&& __u, const allocator_type& __a) : … { … } template <class _Value, class _Hash, class _Pred, class _Alloc> unordered_multiset<_Value, _Hash, _Pred, _Alloc>::unordered_multiset(initializer_list<value_type> __il) { … } 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) : … { … } 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) : … { … } 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) { … } 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) { … } #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) { … } template <class _Value, class _Hash, class _Pred, class _Alloc> inline _LIBCPP_HIDE_FROM_ABI void swap(unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) { … } #if _LIBCPP_STD_VER >= 20 template <class _Value, class _Hash, class _Pred, class _Alloc, class _Predicate> inline _LIBCPP_HIDE_FROM_ABI typename unordered_multiset<_Value, _Hash, _Pred, _Alloc>::size_type erase_if(unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __c, _Predicate __pred) { … } #endif template <class _Value, class _Hash, class _Pred, class _Alloc> _LIBCPP_HIDE_FROM_ABI bool operator==(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) { … } #if _LIBCPP_STD_VER <= 17 template <class _Value, class _Hash, class _Pred, class _Alloc> inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x, const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __y) { return !(__x == __y); } #endif _LIBCPP_END_NAMESPACE_STD #if _LIBCPP_STD_VER >= 17 _LIBCPP_BEGIN_NAMESPACE_STD namespace pmr { unordered_set; unordered_multiset; } // namespace pmr _LIBCPP_END_NAMESPACE_STD #endif _LIBCPP_POP_MACROS #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 # include <cmath> # include <concepts> # include <cstdlib> # include <functional> # include <iterator> # include <stdexcept> # include <type_traits> #endif #endif // _LIBCPP_UNORDERED_SET