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-rw-r--r--system/include/libcxx/unordered_map1793
1 files changed, 1793 insertions, 0 deletions
diff --git a/system/include/libcxx/unordered_map b/system/include/libcxx/unordered_map
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--- /dev/null
+++ b/system/include/libcxx/unordered_map
@@ -0,0 +1,1793 @@
+// -*- C++ -*-
+//===-------------------------- unordered_map -----------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_UNORDERED_MAP
+#define _LIBCPP_UNORDERED_MAP
+
+/*
+
+ unordered_map synopsis
+
+#include <initializer_list>
+
+namespace std
+{
+
+template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
+ class Alloc = allocator<pair<const Key, T>>>
+class unordered_map
+{
+public:
+ // types
+ typedef Key key_type;
+ typedef T mapped_type;
+ typedef Hash hasher;
+ typedef Pred key_equal;
+ typedef Alloc allocator_type;
+ typedef pair<const key_type, mapped_type> value_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;
+
+ unordered_map()
+ noexcept(
+ is_nothrow_default_constructible<hasher>::value &&
+ is_nothrow_default_constructible<key_equal>::value &&
+ is_nothrow_default_constructible<allocator_type>::value);
+ explicit unordered_map(size_type n, const hasher& hf = hasher(),
+ const key_equal& eql = key_equal(),
+ const allocator_type& a = allocator_type());
+ template <class InputIterator>
+ unordered_map(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_map(const allocator_type&);
+ unordered_map(const unordered_map&);
+ unordered_map(const unordered_map&, const Allocator&);
+ unordered_map(unordered_map&&)
+ noexcept(
+ is_nothrow_move_constructible<hasher>::value &&
+ is_nothrow_move_constructible<key_equal>::value &&
+ is_nothrow_move_constructible<allocator_type>::value);
+ unordered_map(unordered_map&&, const Allocator&);
+ unordered_map(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_map();
+ unordered_map& operator=(const unordered_map&);
+ unordered_map& operator=(unordered_map&&)
+ 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_map& 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);
+ template <class P>
+ pair<iterator, bool> insert(P&& obj);
+ iterator insert(const_iterator hint, const value_type& obj);
+ template <class P>
+ iterator insert(const_iterator hint, P&& obj);
+ template <class InputIterator>
+ void insert(InputIterator first, InputIterator last);
+ void insert(initializer_list<value_type>);
+
+ iterator erase(const_iterator position);
+ size_type erase(const key_type& k);
+ iterator erase(const_iterator first, const_iterator last);
+ void clear() noexcept;
+
+ void swap(unordered_map&)
+ noexcept(
+ (!allocator_type::propagate_on_container_swap::value ||
+ __is_nothrow_swappable<allocator_type>::value) &&
+ __is_nothrow_swappable<hasher>::value &&
+ __is_nothrow_swappable<key_equal>::value);
+
+ 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;
+ pair<iterator, iterator> equal_range(const key_type& k);
+ pair<const_iterator, const_iterator> equal_range(const key_type& k) const;
+
+ mapped_type& operator[](const key_type& k);
+ mapped_type& operator[](key_type&& k);
+
+ mapped_type& at(const key_type& k);
+ const mapped_type& at(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 Key, class T, class Hash, class Pred, class Alloc>
+ void swap(unordered_map<Key, T, Hash, Pred, Alloc>& x,
+ unordered_map<Key, T, Hash, Pred, Alloc>& y)
+ noexcept(noexcept(x.swap(y)));
+
+template <class Key, class T, class Hash, class Pred, class Alloc>
+ bool
+ operator==(const unordered_map<Key, T, Hash, Pred, Alloc>& x,
+ const unordered_map<Key, T, Hash, Pred, Alloc>& y);
+
+template <class Key, class T, class Hash, class Pred, class Alloc>
+ bool
+ operator!=(const unordered_map<Key, T, Hash, Pred, Alloc>& x,
+ const unordered_map<Key, T, Hash, Pred, Alloc>& y);
+
+template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
+ class Alloc = allocator<pair<const Key, T>>>
+class unordered_multimap
+{
+public:
+ // types
+ typedef Key key_type;
+ typedef T mapped_type;
+ typedef Hash hasher;
+ typedef Pred key_equal;
+ typedef Alloc allocator_type;
+ typedef pair<const key_type, mapped_type> value_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;
+
+ unordered_multimap()
+ noexcept(
+ is_nothrow_default_constructible<hasher>::value &&
+ is_nothrow_default_constructible<key_equal>::value &&
+ is_nothrow_default_constructible<allocator_type>::value);
+ explicit unordered_multimap(size_type n, const hasher& hf = hasher(),
+ const key_equal& eql = key_equal(),
+ const allocator_type& a = allocator_type());
+ template <class InputIterator>
+ unordered_multimap(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_multimap(const allocator_type&);
+ unordered_multimap(const unordered_multimap&);
+ unordered_multimap(const unordered_multimap&, const Allocator&);
+ unordered_multimap(unordered_multimap&&)
+ noexcept(
+ is_nothrow_move_constructible<hasher>::value &&
+ is_nothrow_move_constructible<key_equal>::value &&
+ is_nothrow_move_constructible<allocator_type>::value);
+ unordered_multimap(unordered_multimap&&, const Allocator&);
+ unordered_multimap(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_multimap();
+ unordered_multimap& operator=(const unordered_multimap&);
+ unordered_multimap& operator=(unordered_multimap&&)
+ 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_multimap& 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);
+ template <class P>
+ iterator insert(P&& obj);
+ iterator insert(const_iterator hint, const value_type& obj);
+ template <class P>
+ iterator insert(const_iterator hint, P&& obj);
+ template <class InputIterator>
+ void insert(InputIterator first, InputIterator last);
+ void insert(initializer_list<value_type>);
+
+ iterator erase(const_iterator position);
+ size_type erase(const key_type& k);
+ iterator erase(const_iterator first, const_iterator last);
+ void clear() noexcept;
+
+ void swap(unordered_multimap&)
+ noexcept(
+ (!allocator_type::propagate_on_container_swap::value ||
+ __is_nothrow_swappable<allocator_type>::value) &&
+ __is_nothrow_swappable<hasher>::value &&
+ __is_nothrow_swappable<key_equal>::value);
+
+ 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;
+ 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 Key, class T, class Hash, class Pred, class Alloc>
+ void swap(unordered_multimap<Key, T, Hash, Pred, Alloc>& x,
+ unordered_multimap<Key, T, Hash, Pred, Alloc>& y)
+ noexcept(noexcept(x.swap(y)));
+
+template <class Key, class T, class Hash, class Pred, class Alloc>
+ bool
+ operator==(const unordered_multimap<Key, T, Hash, Pred, Alloc>& x,
+ const unordered_multimap<Key, T, Hash, Pred, Alloc>& y);
+
+template <class Key, class T, class Hash, class Pred, class Alloc>
+ bool
+ operator!=(const unordered_multimap<Key, T, Hash, Pred, Alloc>& x,
+ const unordered_multimap<Key, T, Hash, Pred, Alloc>& y);
+
+} // std
+
+*/
+
+#include <__config>
+#include <__hash_table>
+#include <functional>
+#include <stdexcept>
+
+#pragma GCC system_header
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _Tp, class _Hash, bool = is_empty<_Hash>::value>
+class __unordered_map_hasher
+ : private _Hash
+{
+public:
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_hasher()
+ _NOEXCEPT_(is_nothrow_default_constructible<_Hash>::value)
+ : _Hash() {}
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_hasher(const _Hash& __h)
+ _NOEXCEPT_(is_nothrow_copy_constructible<_Hash>::value)
+ : _Hash(__h) {}
+ _LIBCPP_INLINE_VISIBILITY
+ const _Hash& hash_function() const _NOEXCEPT {return *this;}
+ _LIBCPP_INLINE_VISIBILITY
+ size_t operator()(const _Tp& __x) const
+ {return static_cast<const _Hash&>(*this)(__x.first);}
+ _LIBCPP_INLINE_VISIBILITY
+ size_t operator()(const typename _Tp::first_type& __x) const
+ {return static_cast<const _Hash&>(*this)(__x);}
+};
+
+template <class _Tp, class _Hash>
+class __unordered_map_hasher<_Tp, _Hash, false>
+{
+ _Hash __hash_;
+public:
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_hasher()
+ _NOEXCEPT_(is_nothrow_default_constructible<_Hash>::value)
+ : __hash_() {}
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_hasher(const _Hash& __h)
+ _NOEXCEPT_(is_nothrow_copy_constructible<_Hash>::value)
+ : __hash_(__h) {}
+ _LIBCPP_INLINE_VISIBILITY
+ const _Hash& hash_function() const _NOEXCEPT {return __hash_;}
+ _LIBCPP_INLINE_VISIBILITY
+ size_t operator()(const _Tp& __x) const
+ {return __hash_(__x.first);}
+ _LIBCPP_INLINE_VISIBILITY
+ size_t operator()(const typename _Tp::first_type& __x) const
+ {return __hash_(__x);}
+};
+
+template <class _Tp, class _Pred, bool = is_empty<_Pred>::value>
+class __unordered_map_equal
+ : private _Pred
+{
+public:
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_equal()
+ _NOEXCEPT_(is_nothrow_default_constructible<_Pred>::value)
+ : _Pred() {}
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_equal(const _Pred& __p)
+ _NOEXCEPT_(is_nothrow_copy_constructible<_Pred>::value)
+ : _Pred(__p) {}
+ _LIBCPP_INLINE_VISIBILITY
+ const _Pred& key_eq() const _NOEXCEPT {return *this;}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ {return static_cast<const _Pred&>(*this)(__x.first, __y.first);}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const typename _Tp::first_type& __x, const _Tp& __y) const
+ {return static_cast<const _Pred&>(*this)(__x, __y.first);}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const _Tp& __x, const typename _Tp::first_type& __y) const
+ {return static_cast<const _Pred&>(*this)(__x.first, __y);}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const typename _Tp::first_type& __x,
+ const typename _Tp::first_type& __y) const
+ {return static_cast<const _Pred&>(*this)(__x, __y);}
+};
+
+template <class _Tp, class _Pred>
+class __unordered_map_equal<_Tp, _Pred, false>
+{
+ _Pred __pred_;
+public:
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_equal()
+ _NOEXCEPT_(is_nothrow_default_constructible<_Pred>::value)
+ : __pred_() {}
+ _LIBCPP_INLINE_VISIBILITY
+ __unordered_map_equal(const _Pred& __p)
+ _NOEXCEPT_(is_nothrow_copy_constructible<_Pred>::value)
+ : __pred_(__p) {}
+ _LIBCPP_INLINE_VISIBILITY
+ const _Pred& key_eq() const _NOEXCEPT {return __pred_;}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const _Tp& __x, const _Tp& __y) const
+ {return __pred_(__x.first, __y.first);}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const typename _Tp::first_type& __x, const _Tp& __y) const
+ {return __pred_(__x, __y.first);}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const _Tp& __x, const typename _Tp::first_type& __y) const
+ {return __pred_(__x.first, __y);}
+ _LIBCPP_INLINE_VISIBILITY
+ bool operator()(const typename _Tp::first_type& __x,
+ const typename _Tp::first_type& __y) const
+ {return __pred_(__x, __y);}
+};
+
+template <class _Alloc>
+class __hash_map_node_destructor
+{
+ typedef _Alloc allocator_type;
+ typedef allocator_traits<allocator_type> __alloc_traits;
+ typedef typename __alloc_traits::value_type::value_type value_type;
+public:
+ typedef typename __alloc_traits::pointer pointer;
+private:
+ typedef typename value_type::first_type first_type;
+ typedef typename value_type::second_type second_type;
+
+ allocator_type& __na_;
+
+ __hash_map_node_destructor& operator=(const __hash_map_node_destructor&);
+
+public:
+ bool __first_constructed;
+ bool __second_constructed;
+
+ _LIBCPP_INLINE_VISIBILITY
+ explicit __hash_map_node_destructor(allocator_type& __na) _NOEXCEPT
+ : __na_(__na),
+ __first_constructed(false),
+ __second_constructed(false)
+ {}
+
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_node_destructor(__hash_node_destructor<allocator_type>&& __x)
+ _NOEXCEPT
+ : __na_(__x.__na_),
+ __first_constructed(__x.__value_constructed),
+ __second_constructed(__x.__value_constructed)
+ {
+ __x.__value_constructed = false;
+ }
+#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_node_destructor(const __hash_node_destructor<allocator_type>& __x)
+ : __na_(__x.__na_),
+ __first_constructed(__x.__value_constructed),
+ __second_constructed(__x.__value_constructed)
+ {
+ const_cast<bool&>(__x.__value_constructed) = false;
+ }
+#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+
+ _LIBCPP_INLINE_VISIBILITY
+ void operator()(pointer __p) _NOEXCEPT
+ {
+ if (__second_constructed)
+ __alloc_traits::destroy(__na_, _VSTD::addressof(__p->__value_.second));
+ if (__first_constructed)
+ __alloc_traits::destroy(__na_, _VSTD::addressof(__p->__value_.first));
+ if (__p)
+ __alloc_traits::deallocate(__na_, __p, 1);
+ }
+};
+
+template <class _HashIterator>
+class _LIBCPP_VISIBLE __hash_map_iterator
+{
+ _HashIterator __i_;
+
+ typedef pointer_traits<typename _HashIterator::pointer> __pointer_traits;
+ typedef const typename _HashIterator::value_type::first_type key_type;
+ typedef typename _HashIterator::value_type::second_type mapped_type;
+public:
+ typedef forward_iterator_tag iterator_category;
+ typedef pair<key_type, mapped_type> value_type;
+ typedef typename _HashIterator::difference_type difference_type;
+ typedef value_type& reference;
+ typedef typename __pointer_traits::template
+#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+ rebind<value_type>
+#else
+ rebind<value_type>::other
+#endif
+ pointer;
+
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_iterator() _NOEXCEPT {}
+
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_iterator(_HashIterator __i) _NOEXCEPT : __i_(__i) {}
+
+ _LIBCPP_INLINE_VISIBILITY
+ reference operator*() const {return *operator->();}
+ _LIBCPP_INLINE_VISIBILITY
+ pointer operator->() const {return (pointer)__i_.operator->();}
+
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_iterator& operator++() {++__i_; return *this;}
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_iterator operator++(int)
+ {
+ __hash_map_iterator __t(*this);
+ ++(*this);
+ return __t;
+ }
+
+ friend _LIBCPP_INLINE_VISIBILITY
+ bool operator==(const __hash_map_iterator& __x, const __hash_map_iterator& __y)
+ {return __x.__i_ == __y.__i_;}
+ friend _LIBCPP_INLINE_VISIBILITY
+ bool operator!=(const __hash_map_iterator& __x, const __hash_map_iterator& __y)
+ {return __x.__i_ != __y.__i_;}
+
+ template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_map;
+ template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_multimap;
+ template <class> friend class _LIBCPP_VISIBLE __hash_const_iterator;
+ template <class> friend class _LIBCPP_VISIBLE __hash_const_local_iterator;
+ template <class> friend class _LIBCPP_VISIBLE __hash_map_const_iterator;
+};
+
+template <class _HashIterator>
+class _LIBCPP_VISIBLE __hash_map_const_iterator
+{
+ _HashIterator __i_;
+
+ typedef pointer_traits<typename _HashIterator::pointer> __pointer_traits;
+ typedef const typename _HashIterator::value_type::first_type key_type;
+ typedef typename _HashIterator::value_type::second_type mapped_type;
+public:
+ typedef forward_iterator_tag iterator_category;
+ typedef pair<key_type, mapped_type> value_type;
+ typedef typename _HashIterator::difference_type difference_type;
+ typedef const value_type& reference;
+ typedef typename __pointer_traits::template
+#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+ rebind<const value_type>
+#else
+ rebind<const value_type>::other
+#endif
+ pointer;
+
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_const_iterator() _NOEXCEPT {}
+
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_const_iterator(_HashIterator __i) _NOEXCEPT : __i_(__i) {}
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_const_iterator(
+ __hash_map_iterator<typename _HashIterator::__non_const_iterator> __i)
+ _NOEXCEPT
+ : __i_(__i.__i_) {}
+
+ _LIBCPP_INLINE_VISIBILITY
+ reference operator*() const {return *operator->();}
+ _LIBCPP_INLINE_VISIBILITY
+ pointer operator->() const {return (pointer)__i_.operator->();}
+
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_const_iterator& operator++() {++__i_; return *this;}
+ _LIBCPP_INLINE_VISIBILITY
+ __hash_map_const_iterator operator++(int)
+ {
+ __hash_map_const_iterator __t(*this);
+ ++(*this);
+ return __t;
+ }
+
+ friend _LIBCPP_INLINE_VISIBILITY
+ bool operator==(const __hash_map_const_iterator& __x, const __hash_map_const_iterator& __y)
+ {return __x.__i_ == __y.__i_;}
+ friend _LIBCPP_INLINE_VISIBILITY
+ bool operator!=(const __hash_map_const_iterator& __x, const __hash_map_const_iterator& __y)
+ {return __x.__i_ != __y.__i_;}
+
+ template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_map;
+ template <class, class, class, class, class> friend class _LIBCPP_VISIBLE unordered_multimap;
+ template <class> friend class _LIBCPP_VISIBLE __hash_const_iterator;
+ template <class> friend class _LIBCPP_VISIBLE __hash_const_local_iterator;
+};
+
+template <class _Key, class _Tp, class _Hash = hash<_Key>, class _Pred = equal_to<_Key>,
+ class _Alloc = allocator<pair<const _Key, _Tp> > >
+class _LIBCPP_VISIBLE unordered_map
+{
+public:
+ // types
+ typedef _Key key_type;
+ typedef _Tp mapped_type;
+ typedef _Hash hasher;
+ typedef _Pred key_equal;
+ typedef _Alloc allocator_type;
+ typedef pair<const key_type, mapped_type> value_type;
+ typedef value_type& reference;
+ typedef const value_type& const_reference;
+
+private:
+ typedef pair<key_type, mapped_type> __value_type;
+ typedef __unordered_map_hasher<__value_type, hasher> __hasher;
+ typedef __unordered_map_equal<__value_type, key_equal> __key_equal;
+ typedef typename allocator_traits<allocator_type>::template
+#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
+ rebind_alloc<__value_type>
+#else
+ rebind_alloc<__value_type>::other
+#endif
+ __allocator_type;
+
+ typedef __hash_table<__value_type, __hasher,
+ __key_equal, __allocator_type> __table;
+
+ __table __table_;
+
+ typedef typename __table::__node_pointer __node_pointer;
+ typedef typename __table::__node_const_pointer __node_const_pointer;
+ typedef typename __table::__node_traits __node_traits;
+ typedef typename __table::__node_allocator __node_allocator;
+ typedef typename __table::__node __node;
+ typedef __hash_map_node_destructor<__node_allocator> _D;
+ typedef unique_ptr<__node, _D> __node_holder;
+ typedef allocator_traits<allocator_type> __alloc_traits;
+public:
+ typedef typename __alloc_traits::pointer pointer;
+ typedef typename __alloc_traits::const_pointer const_pointer;
+ typedef typename __alloc_traits::size_type size_type;
+ typedef typename __alloc_traits::difference_type difference_type;
+
+ typedef __hash_map_iterator<typename __table::iterator> iterator;
+ typedef __hash_map_const_iterator<typename __table::const_iterator> const_iterator;
+ typedef __hash_map_iterator<typename __table::local_iterator> local_iterator;
+ typedef __hash_map_const_iterator<typename __table::const_local_iterator> const_local_iterator;
+
+ _LIBCPP_INLINE_VISIBILITY
+ unordered_map()
+ _NOEXCEPT_(is_nothrow_default_constructible<__table>::value)
+ {} // = default;
+ explicit unordered_map(size_type __n, const hasher& __hf = hasher(),
+ const key_equal& __eql = key_equal());
+ unordered_map(size_type __n, const hasher& __hf,
+ const key_equal& __eql,
+ const allocator_type& __a);
+ template <class _InputIterator>
+ unordered_map(_InputIterator __first, _InputIterator __last);
+ template <class _InputIterator>
+ unordered_map(_InputIterator __first, _InputIterator __last,
+ size_type __n, const hasher& __hf = hasher(),
+ const key_equal& __eql = key_equal());
+ template <class _InputIterator>
+ unordered_map(_InputIterator __first, _InputIterator __last,
+ size_type __n, const hasher& __hf,
+ const key_equal& __eql,
+ const allocator_type& __a);
+ explicit unordered_map(const allocator_type& __a);
+ unordered_map(const unordered_map& __u);
+ unordered_map(const unordered_map& __u, const allocator_type& __a);
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ unordered_map(unordered_map&& __u)
+ _NOEXCEPT_(is_nothrow_move_constructible<__table>::value);
+ unordered_map(unordered_map&& __u, const allocator_type& __a);
+#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ unordered_map(initializer_list<value_type> __il);
+ unordered_map(initializer_list<value_type> __il, size_type __n,
+ const hasher& __hf = hasher(), const key_equal& __eql = key_equal());
+ unordered_map(initializer_list<value_type> __il, size_type __n,
+ const hasher& __hf, const key_equal& __eql,
+ const allocator_type& __a);
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ // ~unordered_map() = default;
+ _LIBCPP_INLINE_VISIBILITY
+ unordered_map& operator=(const unordered_map& __u)
+ {
+ __table_ = __u.__table_;
+ return *this;
+ }
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ unordered_map& operator=(unordered_map&& __u)
+ _NOEXCEPT_(is_nothrow_move_assignable<__table>::value);
+#endif
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ unordered_map& operator=(initializer_list<value_type> __il);
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+
+ _LIBCPP_INLINE_VISIBILITY
+ allocator_type get_allocator() const _NOEXCEPT
+ {return allocator_type(__table_.__node_alloc());}
+
+ _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_HAS_NO_RVALUE_REFERENCES
+ _LIBCPP_INLINE_VISIBILITY
+ pair<iterator, bool> emplace()
+ {return __table_.__emplace_unique();}
+
+ template <class _A0,
+ class = typename enable_if<is_constructible<value_type, _A0>::value>::type>
+ _LIBCPP_INLINE_VISIBILITY
+ pair<iterator, bool> emplace(_A0&& __a0)
+ {return __table_.__emplace_unique(_VSTD::forward<_A0>(__a0));}
+
+#ifndef _LIBCPP_HAS_NO_VARIADICS
+
+ template <class _A0, class... _Args,
+ class = typename enable_if<is_constructible<key_type, _A0>::value>::type>
+ pair<iterator, bool> emplace(_A0&& __a0, _Args&&... __args);
+
+#endif // _LIBCPP_HAS_NO_VARIADICS
+
+ _LIBCPP_INLINE_VISIBILITY
+ iterator emplace_hint(const_iterator)
+ {return __table_.__emplace_unique().first;}
+
+ template <class _A0,
+ class = typename enable_if<is_constructible<value_type, _A0>::value>::type>
+ _LIBCPP_INLINE_VISIBILITY
+ iterator emplace_hint(const_iterator, _A0&& __a0)
+ {return __table_.__emplace_unique(_VSTD::forward<_A0>(__a0)).first;}
+
+#ifndef _LIBCPP_HAS_NO_VARIADICS
+
+ template <class _A0, class... _Args,
+ class = typename enable_if<is_constructible<key_type, _A0>::value>::type>
+ _LIBCPP_INLINE_VISIBILITY
+ iterator emplace_hint(const_iterator, _A0&& __a0, _Args&&... __args)
+ {return emplace(_VSTD::forward<_A0>(__a0),
+ _VSTD::forward<_Args>(__args)...).first;}
+#endif // _LIBCPP_HAS_NO_VARIADICS
+#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ _LIBCPP_INLINE_VISIBILITY
+ pair<iterator, bool> insert(const value_type& __x)
+ {return __table_.__insert_unique(__x);}
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ template <class _P,
+ class = typename enable_if<is_constructible<value_type, _P>::value>::type>
+ _LIBCPP_INLINE_VISIBILITY
+ pair<iterator, bool> insert(_P&& __x)
+ {return __table_.__insert_unique(_VSTD::forward<_P>(__x));}
+#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ _LIBCPP_INLINE_VISIBILITY
+ iterator insert(const_iterator, const value_type& __x)
+ {return insert(__x).first;}
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ template <class _P,
+ class = typename enable_if<is_constructible<value_type, _P>::value>::type>
+ _LIBCPP_INLINE_VISIBILITY
+ iterator insert(const_iterator, _P&& __x)
+ {return insert(_VSTD::forward<_P>(__x)).first;}
+#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ template <class _InputIterator>
+ void insert(_InputIterator __first, _InputIterator __last);
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ _LIBCPP_INLINE_VISIBILITY
+ void insert(initializer_list<value_type> __il)
+ {insert(__il.begin(), __il.end());}
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+
+ _LIBCPP_INLINE_VISIBILITY
+ iterator erase(const_iterator __p) {return __table_.erase(__p.__i_);}
+ _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.__i_, __last.__i_);}
+ _LIBCPP_INLINE_VISIBILITY
+ void clear() _NOEXCEPT {__table_.clear();}
+
+ _LIBCPP_INLINE_VISIBILITY
+ void swap(unordered_map& __u)
+ _NOEXCEPT_(__is_nothrow_swappable<__table>::value)
+ {__table_.swap(__u.__table_);}
+
+ _LIBCPP_INLINE_VISIBILITY
+ hasher hash_function() const
+ {return __table_.hash_function().hash_function();}
+ _LIBCPP_INLINE_VISIBILITY
+ key_equal key_eq() const
+ {return __table_.key_eq().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);}
+ _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);}
+
+ mapped_type& operator[](const key_type& __k);
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ mapped_type& operator[](key_type&& __k);
+#endif
+
+ mapped_type& at(const key_type& __k);
+ const mapped_type& at(const key_type& __k) const;
+
+ _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);}
+
+private:
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+#ifndef _LIBCPP_HAS_NO_VARIADICS
+ template <class _A0, class... _Args,
+