diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__hash_table')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__hash_table | 3216 |
1 files changed, 1353 insertions, 1863 deletions
diff --git a/contrib/llvm-project/libcxx/include/__hash_table b/contrib/llvm-project/libcxx/include/__hash_table index fa950ac7e9b7..3cee48ef8538 100644 --- a/contrib/llvm-project/libcxx/include/__hash_table +++ b/contrib/llvm-project/libcxx/include/__hash_table @@ -55,7 +55,6 @@ _LIBCPP_PUSH_MACROS #include <__undef_macros> - _LIBCPP_BEGIN_NAMESPACE_STD template <class _Key, class _Tp> @@ -67,7 +66,7 @@ struct __is_hash_value_type_imp : false_type {}; template <class _Key, class _Value> struct __is_hash_value_type_imp<__hash_value_type<_Key, _Value> > : true_type {}; -template <class ..._Args> +template <class... _Args> struct __is_hash_value_type : false_type {}; template <class _One> @@ -76,110 +75,91 @@ struct __is_hash_value_type<_One> : __is_hash_value_type_imp<__remove_cvref_t<_O _LIBCPP_EXPORTED_FROM_ABI size_t __next_prime(size_t __n); template <class _NodePtr> -struct __hash_node_base -{ - typedef typename pointer_traits<_NodePtr>::element_type __node_type; - typedef __hash_node_base __first_node; - typedef __rebind_pointer_t<_NodePtr, __first_node> __node_base_pointer; - typedef _NodePtr __node_pointer; +struct __hash_node_base { + typedef typename pointer_traits<_NodePtr>::element_type __node_type; + typedef __hash_node_base __first_node; + typedef __rebind_pointer_t<_NodePtr, __first_node> __node_base_pointer; + typedef _NodePtr __node_pointer; #if defined(_LIBCPP_ABI_FIX_UNORDERED_NODE_POINTER_UB) typedef __node_base_pointer __next_pointer; #else - typedef __conditional_t<is_pointer<__node_pointer>::value, __node_base_pointer, __node_pointer> __next_pointer; + typedef __conditional_t<is_pointer<__node_pointer>::value, __node_base_pointer, __node_pointer> __next_pointer; #endif - __next_pointer __next_; + __next_pointer __next_; - _LIBCPP_HIDE_FROM_ABI - __next_pointer __ptr() _NOEXCEPT { - return static_cast<__next_pointer>( - pointer_traits<__node_base_pointer>::pointer_to(*this)); - } + _LIBCPP_HIDE_FROM_ABI __next_pointer __ptr() _NOEXCEPT { + return static_cast<__next_pointer>(pointer_traits<__node_base_pointer>::pointer_to(*this)); + } - _LIBCPP_HIDE_FROM_ABI - __node_pointer __upcast() _NOEXCEPT { - return static_cast<__node_pointer>( - pointer_traits<__node_base_pointer>::pointer_to(*this)); - } + _LIBCPP_HIDE_FROM_ABI __node_pointer __upcast() _NOEXCEPT { + return static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(*this)); + } - _LIBCPP_HIDE_FROM_ABI - size_t __hash() const _NOEXCEPT { - return static_cast<__node_type const&>(*this).__hash_; - } + _LIBCPP_HIDE_FROM_ABI size_t __hash() const _NOEXCEPT { return static_cast<__node_type const&>(*this).__hash_; } - _LIBCPP_HIDE_FROM_ABI __hash_node_base() _NOEXCEPT : __next_(nullptr) {} - _LIBCPP_HIDE_FROM_ABI explicit __hash_node_base(__next_pointer __next) _NOEXCEPT : __next_(__next) {} + _LIBCPP_HIDE_FROM_ABI __hash_node_base() _NOEXCEPT : __next_(nullptr) {} + _LIBCPP_HIDE_FROM_ABI explicit __hash_node_base(__next_pointer __next) _NOEXCEPT : __next_(__next) {} }; template <class _Tp, class _VoidPtr> -struct __hash_node - : public __hash_node_base - < - __rebind_pointer_t<_VoidPtr, __hash_node<_Tp, _VoidPtr> > - > -{ - typedef _Tp __node_value_type; - using _Base = __hash_node_base<__rebind_pointer_t<_VoidPtr, __hash_node<_Tp, _VoidPtr> > >; - using __next_pointer = typename _Base::__next_pointer; +struct __hash_node : public __hash_node_base< __rebind_pointer_t<_VoidPtr, __hash_node<_Tp, _VoidPtr> > > { + typedef _Tp __node_value_type; + using _Base = __hash_node_base<__rebind_pointer_t<_VoidPtr, __hash_node<_Tp, _VoidPtr> > >; + using __next_pointer = typename _Base::__next_pointer; - size_t __hash_; + size_t __hash_; - // We allow starting the lifetime of nodes without initializing the value held by the node, - // since that is handled by the hash table itself in order to be allocator-aware. + // We allow starting the lifetime of nodes without initializing the value held by the node, + // since that is handled by the hash table itself in order to be allocator-aware. #ifndef _LIBCPP_CXX03_LANG + private: - union { - _Tp __value_; - }; + union { + _Tp __value_; + }; public: - _LIBCPP_HIDE_FROM_ABI _Tp& __get_value() { return __value_; } + _LIBCPP_HIDE_FROM_ABI _Tp& __get_value() { return __value_; } #else + private: - _ALIGNAS_TYPE(_Tp) char __buffer_[sizeof(_Tp)]; + _ALIGNAS_TYPE(_Tp) char __buffer_[sizeof(_Tp)]; public: - _LIBCPP_HIDE_FROM_ABI _Tp& __get_value() { - return *std::__launder(reinterpret_cast<_Tp*>(&__buffer_)); - } + _LIBCPP_HIDE_FROM_ABI _Tp& __get_value() { return *std::__launder(reinterpret_cast<_Tp*>(&__buffer_)); } #endif - _LIBCPP_HIDE_FROM_ABI explicit __hash_node(__next_pointer __next, size_t __hash) : _Base(__next), __hash_(__hash) {} - _LIBCPP_HIDE_FROM_ABI ~__hash_node() {} + _LIBCPP_HIDE_FROM_ABI explicit __hash_node(__next_pointer __next, size_t __hash) : _Base(__next), __hash_(__hash) {} + _LIBCPP_HIDE_FROM_ABI ~__hash_node() {} }; -inline _LIBCPP_HIDE_FROM_ABI -bool -__is_hash_power2(size_t __bc) -{ - return __bc > 2 && !(__bc & (__bc - 1)); -} +inline _LIBCPP_HIDE_FROM_ABI bool __is_hash_power2(size_t __bc) { return __bc > 2 && !(__bc & (__bc - 1)); } -inline _LIBCPP_HIDE_FROM_ABI -size_t -__constrain_hash(size_t __h, size_t __bc) -{ - return !(__bc & (__bc - 1)) ? __h & (__bc - 1) : - (__h < __bc ? __h : __h % __bc); +inline _LIBCPP_HIDE_FROM_ABI size_t __constrain_hash(size_t __h, size_t __bc) { + return !(__bc & (__bc - 1)) ? __h & (__bc - 1) : (__h < __bc ? __h : __h % __bc); } -inline _LIBCPP_HIDE_FROM_ABI -size_t -__next_hash_pow2(size_t __n) -{ - return __n < 2 ? __n : (size_t(1) << (numeric_limits<size_t>::digits - __libcpp_clz(__n-1))); +inline _LIBCPP_HIDE_FROM_ABI size_t __next_hash_pow2(size_t __n) { + return __n < 2 ? __n : (size_t(1) << (numeric_limits<size_t>::digits - __libcpp_clz(__n - 1))); } +template <class _Tp, class _Hash, class _Equal, class _Alloc> +class __hash_table; -template <class _Tp, class _Hash, class _Equal, class _Alloc> class __hash_table; - -template <class _NodePtr> class _LIBCPP_TEMPLATE_VIS __hash_iterator; -template <class _ConstNodePtr> class _LIBCPP_TEMPLATE_VIS __hash_const_iterator; -template <class _NodePtr> class _LIBCPP_TEMPLATE_VIS __hash_local_iterator; -template <class _ConstNodePtr> class _LIBCPP_TEMPLATE_VIS __hash_const_local_iterator; -template <class _HashIterator> class _LIBCPP_TEMPLATE_VIS __hash_map_iterator; -template <class _HashIterator> class _LIBCPP_TEMPLATE_VIS __hash_map_const_iterator; +template <class _NodePtr> +class _LIBCPP_TEMPLATE_VIS __hash_iterator; +template <class _ConstNodePtr> +class _LIBCPP_TEMPLATE_VIS __hash_const_iterator; +template <class _NodePtr> +class _LIBCPP_TEMPLATE_VIS __hash_local_iterator; +template <class _ConstNodePtr> +class _LIBCPP_TEMPLATE_VIS __hash_const_local_iterator; +template <class _HashIterator> +class _LIBCPP_TEMPLATE_VIS __hash_map_iterator; +template <class _HashIterator> +class _LIBCPP_TEMPLATE_VIS __hash_map_const_iterator; template <class _Tp> struct __hash_key_value_types { @@ -189,73 +169,47 @@ struct __hash_key_value_types { typedef _Tp __container_value_type; static const bool __is_map = false; - _LIBCPP_HIDE_FROM_ABI - static key_type const& __get_key(_Tp const& __v) { - return __v; - } - _LIBCPP_HIDE_FROM_ABI - static __container_value_type const& __get_value(__node_value_type const& __v) { - return __v; - } - _LIBCPP_HIDE_FROM_ABI - static __container_value_type* __get_ptr(__node_value_type& __n) { - return std::addressof(__n); - } - _LIBCPP_HIDE_FROM_ABI - static __container_value_type&& __move(__node_value_type& __v) { - return std::move(__v); - } + _LIBCPP_HIDE_FROM_ABI static key_type const& __get_key(_Tp const& __v) { return __v; } + _LIBCPP_HIDE_FROM_ABI static __container_value_type const& __get_value(__node_value_type const& __v) { return __v; } + _LIBCPP_HIDE_FROM_ABI static __container_value_type* __get_ptr(__node_value_type& __n) { return std::addressof(__n); } + _LIBCPP_HIDE_FROM_ABI static __container_value_type&& __move(__node_value_type& __v) { return std::move(__v); } }; template <class _Key, class _Tp> struct __hash_key_value_types<__hash_value_type<_Key, _Tp> > { - typedef _Key key_type; - typedef _Tp mapped_type; - typedef __hash_value_type<_Key, _Tp> __node_value_type; - typedef pair<const _Key, _Tp> __container_value_type; - typedef __container_value_type __map_value_type; + typedef _Key key_type; + typedef _Tp mapped_type; + typedef __hash_value_type<_Key, _Tp> __node_value_type; + typedef pair<const _Key, _Tp> __container_value_type; + typedef __container_value_type __map_value_type; static const bool __is_map = true; - _LIBCPP_HIDE_FROM_ABI - static key_type const& __get_key(__container_value_type const& __v) { - return __v.first; - } + _LIBCPP_HIDE_FROM_ABI static key_type const& __get_key(__container_value_type const& __v) { return __v.first; } template <class _Up, __enable_if_t<__is_same_uncvref<_Up, __node_value_type>::value, int> = 0> - _LIBCPP_HIDE_FROM_ABI - static __container_value_type const& - __get_value(_Up& __t) { + _LIBCPP_HIDE_FROM_ABI static __container_value_type const& __get_value(_Up& __t) { return __t.__get_value(); } template <class _Up, __enable_if_t<__is_same_uncvref<_Up, __container_value_type>::value, int> = 0> - _LIBCPP_HIDE_FROM_ABI - static __container_value_type const& - __get_value(_Up& __t) { + _LIBCPP_HIDE_FROM_ABI static __container_value_type const& __get_value(_Up& __t) { return __t; } - _LIBCPP_HIDE_FROM_ABI - static __container_value_type* __get_ptr(__node_value_type& __n) { + _LIBCPP_HIDE_FROM_ABI static __container_value_type* __get_ptr(__node_value_type& __n) { return std::addressof(__n.__get_value()); } - _LIBCPP_HIDE_FROM_ABI - static pair<key_type&&, mapped_type&&> __move(__node_value_type& __v) { - return __v.__move(); - } + _LIBCPP_HIDE_FROM_ABI static pair<key_type&&, mapped_type&&> __move(__node_value_type& __v) { return __v.__move(); } }; -template <class _Tp, class _AllocPtr, class _KVTypes = __hash_key_value_types<_Tp>, - bool = _KVTypes::__is_map> +template <class _Tp, class _AllocPtr, class _KVTypes = __hash_key_value_types<_Tp>, bool = _KVTypes::__is_map> struct __hash_map_pointer_types {}; template <class _Tp, class _AllocPtr, class _KVTypes> struct __hash_map_pointer_types<_Tp, _AllocPtr, _KVTypes, true> { - typedef typename _KVTypes::__map_value_type _Mv; - typedef __rebind_pointer_t<_AllocPtr, _Mv> - __map_value_type_pointer; - typedef __rebind_pointer_t<_AllocPtr, const _Mv> - __const_map_value_type_pointer; + typedef typename _KVTypes::__map_value_type _Mv; + typedef __rebind_pointer_t<_AllocPtr, _Mv> __map_value_type_pointer; + typedef __rebind_pointer_t<_AllocPtr, const _Mv> __const_map_value_type_pointer; }; template <class _NodePtr, class _NodeT = typename pointer_traits<_NodePtr>::element_type> @@ -263,39 +217,36 @@ struct __hash_node_types; template <class _NodePtr, class _Tp, class _VoidPtr> struct __hash_node_types<_NodePtr, __hash_node<_Tp, _VoidPtr> > - : public __hash_key_value_types<_Tp>, __hash_map_pointer_types<_Tp, _VoidPtr> + : public __hash_key_value_types<_Tp>, + __hash_map_pointer_types<_Tp, _VoidPtr> { - typedef __hash_key_value_types<_Tp> __base; + typedef __hash_key_value_types<_Tp> __base; public: typedef ptrdiff_t difference_type; typedef size_t size_type; - typedef __rebind_pointer_t<_NodePtr, void> __void_pointer; + typedef __rebind_pointer_t<_NodePtr, void> __void_pointer; - typedef typename pointer_traits<_NodePtr>::element_type __node_type; - typedef _NodePtr __node_pointer; + typedef typename pointer_traits<_NodePtr>::element_type __node_type; + typedef _NodePtr __node_pointer; - typedef __hash_node_base<__node_pointer> __node_base_type; - typedef __rebind_pointer_t<_NodePtr, __node_base_type> - __node_base_pointer; + typedef __hash_node_base<__node_pointer> __node_base_type; + typedef __rebind_pointer_t<_NodePtr, __node_base_type> __node_base_pointer; - typedef typename __node_base_type::__next_pointer __next_pointer; + typedef typename __node_base_type::__next_pointer __next_pointer; - typedef _Tp __node_value_type; - typedef __rebind_pointer_t<_VoidPtr, __node_value_type> - __node_value_type_pointer; - typedef __rebind_pointer_t<_VoidPtr, const __node_value_type> - __const_node_value_type_pointer; + typedef _Tp __node_value_type; + typedef __rebind_pointer_t<_VoidPtr, __node_value_type> __node_value_type_pointer; + typedef __rebind_pointer_t<_VoidPtr, const __node_value_type> __const_node_value_type_pointer; private: - static_assert(!is_const<__node_type>::value, - "_NodePtr should never be a pointer to const"); - static_assert((is_same<typename pointer_traits<_VoidPtr>::element_type, void>::value), - "_VoidPtr does not point to unqualified void type"); - static_assert((is_same<__rebind_pointer_t<_VoidPtr, __node_type>, - _NodePtr>::value), "_VoidPtr does not rebind to _NodePtr."); + static_assert(!is_const<__node_type>::value, "_NodePtr should never be a pointer to const"); + static_assert((is_same<typename pointer_traits<_VoidPtr>::element_type, void>::value), + "_VoidPtr does not point to unqualified void type"); + static_assert((is_same<__rebind_pointer_t<_VoidPtr, __node_type>, _NodePtr>::value), + "_VoidPtr does not rebind to _NodePtr."); }; template <class _HashIterator> @@ -309,7 +260,6 @@ struct __hash_node_types_from_iterator<__hash_local_iterator<_NodePtr> > : __has template <class _NodePtr> struct __hash_node_types_from_iterator<__hash_const_local_iterator<_NodePtr> > : __hash_node_types<_NodePtr> {}; - template <class _NodeValueTp, class _VoidPtr> struct __make_hash_node_types { typedef __hash_node<_NodeValueTp, _VoidPtr> _NodeTp; @@ -318,394 +268,327 @@ struct __make_hash_node_types { }; template <class _NodePtr> -class _LIBCPP_TEMPLATE_VIS __hash_iterator -{ - typedef __hash_node_types<_NodePtr> _NodeTypes; - typedef _NodePtr __node_pointer; - typedef typename _NodeTypes::__next_pointer __next_pointer; +class _LIBCPP_TEMPLATE_VIS __hash_iterator { + typedef __hash_node_types<_NodePtr> _NodeTypes; + typedef _NodePtr __node_pointer; + typedef typename _NodeTypes::__next_pointer __next_pointer; - __next_pointer __node_; + __next_pointer __node_; public: - typedef forward_iterator_tag iterator_category; - typedef typename _NodeTypes::__node_value_type value_type; - typedef typename _NodeTypes::difference_type difference_type; - typedef value_type& reference; - typedef typename _NodeTypes::__node_value_type_pointer pointer; + typedef forward_iterator_tag iterator_category; + typedef typename _NodeTypes::__node_value_type value_type; + typedef typename _NodeTypes::difference_type difference_type; + typedef value_type& reference; + typedef typename _NodeTypes::__node_value_type_pointer pointer; - _LIBCPP_HIDE_FROM_ABI __hash_iterator() _NOEXCEPT : __node_(nullptr) { - } + _LIBCPP_HIDE_FROM_ABI __hash_iterator() _NOEXCEPT : __node_(nullptr) {} - _LIBCPP_HIDE_FROM_ABI - reference operator*() const { - return __node_->__upcast()->__get_value(); - } + _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __node_->__upcast()->__get_value(); } - _LIBCPP_HIDE_FROM_ABI - pointer operator->() const { - return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); - } + _LIBCPP_HIDE_FROM_ABI pointer operator->() const { + return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); + } - _LIBCPP_HIDE_FROM_ABI - __hash_iterator& operator++() { - __node_ = __node_->__next_; - return *this; - } + _LIBCPP_HIDE_FROM_ABI __hash_iterator& operator++() { + __node_ = __node_->__next_; + return *this; + } - _LIBCPP_HIDE_FROM_ABI - __hash_iterator operator++(int) - { - __hash_iterator __t(*this); - ++(*this); - return __t; - } + _LIBCPP_HIDE_FROM_ABI __hash_iterator operator++(int) { + __hash_iterator __t(*this); + ++(*this); + return __t; + } - friend _LIBCPP_HIDE_FROM_ABI - bool operator==(const __hash_iterator& __x, const __hash_iterator& __y) - { - return __x.__node_ == __y.__node_; - } - friend _LIBCPP_HIDE_FROM_ABI - bool operator!=(const __hash_iterator& __x, const __hash_iterator& __y) - {return !(__x == __y);} + friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __hash_iterator& __x, const __hash_iterator& __y) { + return __x.__node_ == __y.__node_; + } + friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __hash_iterator& __x, const __hash_iterator& __y) { + return !(__x == __y); + } private: - _LIBCPP_HIDE_FROM_ABI - explicit __hash_iterator(__next_pointer __node) _NOEXCEPT - : __node_(__node) - { - } - - template <class, class, class, class> friend class __hash_table; - template <class> friend class _LIBCPP_TEMPLATE_VIS __hash_const_iterator; - template <class> friend class _LIBCPP_TEMPLATE_VIS __hash_map_iterator; - template <class, class, class, class, class> friend class _LIBCPP_TEMPLATE_VIS unordered_map; - template <class, class, class, class, class> friend class _LIBCPP_TEMPLATE_VIS unordered_multimap; + _LIBCPP_HIDE_FROM_ABI explicit __hash_iterator(__next_pointer __node) _NOEXCEPT : __node_(__node) {} + + template <class, class, class, class> + friend class __hash_table; + template <class> + friend class _LIBCPP_TEMPLATE_VIS __hash_const_iterator; + template <class> + friend class _LIBCPP_TEMPLATE_VIS __hash_map_iterator; + template <class, class, class, class, class> + friend class _LIBCPP_TEMPLATE_VIS unordered_map; + template <class, class, class, class, class> + friend class _LIBCPP_TEMPLATE_VIS unordered_multimap; }; template <class _NodePtr> -class _LIBCPP_TEMPLATE_VIS __hash_const_iterator -{ - static_assert(!is_const<typename pointer_traits<_NodePtr>::element_type>::value, ""); - typedef __hash_node_types<_NodePtr> _NodeTypes; - typedef _NodePtr __node_pointer; - typedef typename _NodeTypes::__next_pointer __next_pointer; +class _LIBCPP_TEMPLATE_VIS __hash_const_iterator { + static_assert(!is_const<typename pointer_traits<_NodePtr>::element_type>::value, ""); + typedef __hash_node_types<_NodePtr> _NodeTypes; + typedef _NodePtr __node_pointer; + typedef typename _NodeTypes::__next_pointer __next_pointer; - __next_pointer __node_; + __next_pointer __node_; public: - typedef __hash_iterator<_NodePtr> __non_const_iterator; - - typedef forward_iterator_tag iterator_category; - typedef typename _NodeTypes::__node_value_type value_type; - typedef typename _NodeTypes::difference_type difference_type; - typedef const value_type& reference; - typedef typename _NodeTypes::__const_node_value_type_pointer pointer; + typedef __hash_iterator<_NodePtr> __non_const_iterator; + typedef forward_iterator_tag iterator_category; + typedef typename _NodeTypes::__node_value_type value_type; + typedef typename _NodeTypes::difference_type difference_type; + typedef const value_type& reference; + typedef typename _NodeTypes::__const_node_value_type_pointer pointer; - _LIBCPP_HIDE_FROM_ABI __hash_const_iterator() _NOEXCEPT : __node_(nullptr) { - } + _LIBCPP_HIDE_FROM_ABI __hash_const_iterator() _NOEXCEPT : __node_(nullptr) {} - _LIBCPP_HIDE_FROM_ABI - __hash_const_iterator(const __non_const_iterator& __x) _NOEXCEPT - : __node_(__x.__node_) - { - } + _LIBCPP_HIDE_FROM_ABI __hash_const_iterator(const __non_const_iterator& __x) _NOEXCEPT : __node_(__x.__node_) {} - _LIBCPP_HIDE_FROM_ABI - reference operator*() const { - return __node_->__upcast()->__get_value(); - } - _LIBCPP_HIDE_FROM_ABI - pointer operator->() const { - return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); - } + _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __node_->__upcast()->__get_value(); } + _LIBCPP_HIDE_FROM_ABI pointer operator->() const { + return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); + } - _LIBCPP_HIDE_FROM_ABI - __hash_const_iterator& operator++() { - __node_ = __node_->__next_; - return *this; - } + _LIBCPP_HIDE_FROM_ABI __hash_const_iterator& operator++() { + __node_ = __node_->__next_; + return *this; + } - _LIBCPP_HIDE_FROM_ABI - __hash_const_iterator operator++(int) - { - __hash_const_iterator __t(*this); - ++(*this); - return __t; - } + _LIBCPP_HIDE_FROM_ABI __hash_const_iterator operator++(int) { + __hash_const_iterator __t(*this); + ++(*this); + return __t; + } - friend _LIBCPP_HIDE_FROM_ABI - bool operator==(const __hash_const_iterator& __x, const __hash_const_iterator& __y) - { - return __x.__node_ == __y.__node_; - } - friend _LIBCPP_HIDE_FROM_ABI - bool operator!=(const __hash_const_iterator& __x, const __hash_const_iterator& __y) - {return !(__x == __y);} + friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __hash_const_iterator& __x, const __hash_const_iterator& __y) { + return __x.__node_ == __y.__node_; + } + friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __hash_const_iterator& __x, const __hash_const_iterator& __y) { + return !(__x == __y); + } private: - _LIBCPP_HIDE_FROM_ABI - explicit __hash_const_iterator(__next_pointer __node) _NOEXCEPT - : __node_(__node) - { - } - - template <class, class, class, class> friend class __hash_table; - template <class> friend class _LIBCPP_TEMPLATE_VIS __hash_map_const_iterator; - template <class, class, class, class, class> friend class _LIBCPP_TEMPLATE_VIS unordered_map; - template <class, class, class, class, class> friend class _LIBCPP_TEMPLATE_VIS unordered_multimap; + _LIBCPP_HIDE_FROM_ABI explicit __hash_const_iterator(__next_pointer __node) _NOEXCEPT : __node_(__node) {} + + template <class, class, class, class> + friend class __hash_table; + template <class> + friend class _LIBCPP_TEMPLATE_VIS __hash_map_const_iterator; + template <class, class, class, class, class> + friend class _LIBCPP_TEMPLATE_VIS unordered_map; + template <class, class, class, class, class> + friend class _LIBCPP_TEMPLATE_VIS unordered_multimap; }; template <class _NodePtr> -class _LIBCPP_TEMPLATE_VIS __hash_local_iterator -{ - typedef __hash_node_types<_NodePtr> _NodeTypes; - typedef _NodePtr __node_pointer; - typedef typename _NodeTypes::__next_pointer __next_pointer; +class _LIBCPP_TEMPLATE_VIS __hash_local_iterator { + typedef __hash_node_types<_NodePtr> _NodeTypes; + typedef _NodePtr __node_pointer; + typedef typename _NodeTypes::__next_pointer __next_pointer; - __next_pointer __node_; - size_t __bucket_; - size_t __bucket_count_; + __next_pointer __node_; + size_t __bucket_; + size_t __bucket_count_; public: - typedef forward_iterator_tag iterator_category; - typedef typename _NodeTypes::__node_value_type value_type; - typedef typename _NodeTypes::difference_type difference_type; - typedef value_type& reference; - typedef typename _NodeTypes::__node_value_type_pointer pointer; + typedef forward_iterator_tag iterator_category; + typedef typename _NodeTypes::__node_value_type value_type; + typedef typename _NodeTypes::difference_type difference_type; + typedef value_type& reference; + typedef typename _NodeTypes::__node_value_type_pointer pointer; - _LIBCPP_HIDE_FROM_ABI __hash_local_iterator() _NOEXCEPT : __node_(nullptr) { - } + _LIBCPP_HIDE_FROM_ABI __hash_local_iterator() _NOEXCEPT : __node_(nullptr) {} - _LIBCPP_HIDE_FROM_ABI - reference operator*() const { - return __node_->__upcast()->__get_value(); - } + _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __node_->__upcast()->__get_value(); } - _LIBCPP_HIDE_FROM_ABI - pointer operator->() const { - return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); - } + _LIBCPP_HIDE_FROM_ABI pointer operator->() const { + return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); + } - _LIBCPP_HIDE_FROM_ABI - __hash_local_iterator& operator++() { - __node_ = __node_->__next_; - if (__node_ != nullptr && std::__constrain_hash(__node_->__hash(), __bucket_count_) != __bucket_) - __node_ = nullptr; - return *this; - } + _LIBCPP_HIDE_FROM_ABI __hash_local_iterator& operator++() { + __node_ = __node_->__next_; + if (__node_ != nullptr && std::__constrain_hash(__node_->__hash(), __bucket_count_) != __bucket_) + __node_ = nullptr; + return *this; + } - _LIBCPP_HIDE_FROM_ABI - __hash_local_iterator operator++(int) - { - __hash_local_iterator __t(*this); - ++(*this); - return __t; - } + _LIBCPP_HIDE_FROM_ABI __hash_local_iterator operator++(int) { + __hash_local_iterator __t(*this); + ++(*this); + return __t; + } - friend _LIBCPP_HIDE_FROM_ABI - bool operator==(const __hash_local_iterator& __x, const __hash_local_iterator& __y) - { - return __x.__node_ == __y.__node_; - } - friend _LIBCPP_HIDE_FROM_ABI - bool operator!=(const __hash_local_iterator& __x, const __hash_local_iterator& __y) - {return !(__x == __y);} + friend _LIBCPP_HIDE_FROM_ABI bool operator==(const __hash_local_iterator& __x, const __hash_local_iterator& __y) { + return __x.__node_ == __y.__node_; + } + friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const __hash_local_iterator& __x, const __hash_local_iterator& __y) { + return !(__x == __y); + } private: - _LIBCPP_HIDE_FROM_ABI - explicit __hash_local_iterator(__next_pointer __node, size_t __bucket, - size_t __bucket_count) _NOEXCEPT - : __node_(__node), - __bucket_(__bucket), - __bucket_count_(__bucket_count) - { - if (__node_ != nullptr) - __node_ = __node_->__next_; - } + _LIBCPP_HIDE_FROM_ABI explicit __hash_local_iterator( + __next_pointer __node, size_t __bucket, size_t __bucket_count) _NOEXCEPT + : __node_(__node), + __bucket_(__bucket), + __bucket_count_(__bucket_count) { + if (__node_ != nullptr) + __node_ = __node_->__next_; + } - template <class, class, class, class> friend class __hash_table; - template <class> friend class _LIBCPP_TEMPLATE_VIS __hash_const_local_iterator; - template <class> friend class _LIBCPP_TEMPLATE_VIS __hash_map_iterator; + template <class, class, class, class> + friend class __hash_table; + template <class> + friend class _LIBCPP_TEMPLATE_VIS __hash_const_local_iterator; + template <class> + friend class _LIBCPP_TEMPLATE_VIS __hash_map_iterator; }; template <class _ConstNodePtr> -class _LIBCPP_TEMPLATE_VIS __hash_const_local_iterator -{ - typedef __hash_node_types<_ConstNodePtr> _NodeTypes; - typedef _ConstNodePtr __node_pointer; - typedef typename _NodeTypes::__next_pointer __next_pointer; - - __next_pointer __node_; - size_t __bucket_; - size_t __bucket_count_; - - typedef pointer_traits<__node_pointer> __pointer_traits; - typedef typename __pointer_traits::element_type __node; - typedef __remove_const_t<__node> __non_const_node; - typedef __rebind_pointer_t<__node_pointer, __non_const_node> - __non_const_node_pointer; -public: - typedef __hash_local_iterator<__non_const_node_pointer> - __non_const_iterator; +class _LIBCPP_TEMPLATE_VIS __hash_const_local_iterator { + typedef __hash_node_types<_ConstNodePtr> _NodeTypes; + typedef _ConstNodePtr __node_pointer; + typedef typename _NodeTypes::__next_pointer __next_pointer; - typedef forward_iterator_tag iterator_category; - typedef typename _NodeTypes::__node_value_type value_type; - typedef typename _NodeTypes::difference_type difference_type; - typedef const value_type& reference; - typedef typename _NodeTypes::__const_node_value_type_pointer pointer; + __next_pointer __node_; + size_t __bucket_; + size_t __bucket_count_; + typedef pointer_traits<__node_pointer> __pointer_traits; + typedef typename __pointer_traits::element_type __node; + typedef __remove_const_t<__node> __non_const_node; + typedef __rebind_pointer_t<__node_pointer, __non_const_node> __non_const_node_pointer; - _LIBCPP_HIDE_FROM_ABI __hash_const_local_iterator() _NOEXCEPT : __node_(nullptr) { - } +public: + typedef __hash_local_iterator<__non_const_node_pointer> __non_const_iterator; - _LIBCPP_HIDE_FROM_ABI - __hash_const_local_iterator(const __non_const_iterator& __x) _NOEXCEPT - : __node_(__x.__node_), - __bucket_(__x.__bucket_), - __bucket_count_(__x.__bucket_count_) - { - } + typedef forward_iterator_tag iterator_category; + typedef typename _NodeTypes::__node_value_type value_type; + typedef typename _NodeTypes::difference_type difference_type; + typedef const value_type& reference; + typedef typename _NodeTypes::__const_node_value_type_pointer pointer; - _LIBCPP_HIDE_FROM_ABI - reference operator*() const { - return __node_->__upcast()->__get_value(); - } + _LIBCPP_HIDE_FROM_ABI __hash_const_local_iterator() _NOEXCEPT : __node_(nullptr) {} - _LIBCPP_HIDE_FROM_ABI - pointer operator->() const { - return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); - } + _LIBCPP_HIDE_FROM_ABI __hash_const_local_iterator(const __non_const_iterator& __x) _NOEXCEPT + : __node_(__x.__node_), + __bucket_(__x.__bucket_), + __bucket_count_(__x.__bucket_count_) {} - _LIBCPP_HIDE_FROM_ABI - __hash_const_local_iterator& operator++() { - __node_ = __node_->__next_; - if (__node_ != nullptr && std::__constrain_hash(__node_->__hash(), __bucket_count_) != __bucket_) - __node_ = nullptr; - return *this; - } + _LIBCPP_HIDE_FROM_ABI reference operator*() const { return __node_->__upcast()->__get_value(); } - _LIBCPP_HIDE_FROM_ABI - __hash_const_local_iterator operator++(int) - { - __hash_const_local_iterator __t(*this); - ++(*this); - return __t; - } + _LIBCPP_HIDE_FROM_ABI pointer operator->() const { + return pointer_traits<pointer>::pointer_to(__node_->__upcast()->__get_value()); + } - friend _LIBCPP_HIDE_FROM_ABI - bool operator==(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y) - { - return __x.__node_ == __y.__node_; - } - friend _LIBCPP_HIDE_FROM_ABI - bool operator!=(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y) - {return !(__x == __y);} + _LIBCPP_HIDE_FROM_ABI __hash_const_local_iterator& operator++() { + __node_ = __node_->__next_; + if (__node_ != nullptr && std::__constrain_hash(__node_->__hash(), __bucket_count_) != __bucket_) + __node_ = nullptr; + return *this; + } + + _LIBCPP_HIDE_FROM_ABI __hash_const_local_iterator operator++(int) { + __hash_const_local_iterator __t(*this); + ++(*this); + return __t; + } + + friend _LIBCPP_HIDE_FROM_ABI bool + operator==(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y) { + return __x.__node_ == __y.__node_; + } + friend _LIBCPP_HIDE_FROM_ABI bool + operator!=(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y) { + return !(__x == __y); + } private: - _LIBCPP_HIDE_FROM_ABI - explicit __hash_const_local_iterator(__next_pointer __node_ptr, size_t __bucket, - size_t __bucket_count) _NOEXCEPT - : __node_(__node_ptr), - __bucket_(__bucket), - __bucket_count_(__bucket_count) - { - if (__node_ != nullptr) - __node_ = __node_->__next_; - } + _LIBCPP_HIDE_FROM_ABI explicit __hash_const_local_iterator( + __next_pointer __node_ptr, size_t __bucket, size_t __bucket_count) _NOEXCEPT + : __node_(__node_ptr), + __bucket_(__bucket), + __bucket_count_(__bucket_count) { + if (__node_ != nullptr) + __node_ = __node_->__next_; + } - template <class, class, class, class> friend class __hash_table; - template <class> friend class _LIBCPP_TEMPLATE_VIS __hash_map_const_iterator; + template <class, class, class, class> + friend class __hash_table; + template <class> + friend class _LIBCPP_TEMPLATE_VIS __hash_map_const_iterator; }; template <class _Alloc> -class __bucket_list_deallocator -{ - typedef _Alloc allocator_type; - typedef allocator_traits<allocator_type> __alloc_traits; - typedef typename __alloc_traits::size_type size_type; +class __bucket_list_deallocator { + typedef _Alloc allocator_type; + typedef allocator_traits<allocator_type> __alloc_traits; + typedef typename __alloc_traits::size_type size_type; + + __compressed_pair<size_type, allocator_type> __data_; - __compressed_pair<size_type, allocator_type> __data_; public: - typedef typename __alloc_traits::pointer pointer; - - _LIBCPP_HIDE_FROM_ABI - __bucket_list_deallocator() - _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) - : __data_(0, __default_init_tag()) {} - - _LIBCPP_HIDE_FROM_ABI - __bucket_list_deallocator(const allocator_type& __a, size_type __size) - _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value) - : __data_(__size, __a) {} - - _LIBCPP_HIDE_FROM_ABI - __bucket_list_deallocator(__bucket_list_deallocator&& __x) - _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value) - : __data_(std::move(__x.__data_)) - { - __x.size() = 0; - } + typedef typename __alloc_traits::pointer pointer; - _LIBCPP_HIDE_FROM_ABI - size_type& size() _NOEXCEPT {return __data_.first();} - _LIBCPP_HIDE_FROM_ABI - size_type size() const _NOEXCEPT {return __data_.first();} + _LIBCPP_HIDE_FROM_ABI __bucket_list_deallocator() _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) + : __data_(0, __default_init_tag()) {} - _LIBCPP_HIDE_FROM_ABI - allocator_type& __alloc() _NOEXCEPT {return __data_.second();} - _LIBCPP_HIDE_FROM_ABI - const allocator_type& __alloc() const _NOEXCEPT {return __data_.second();} + _LIBCPP_HIDE_FROM_ABI __bucket_list_deallocator(const allocator_type& __a, size_type __size) + _NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value) + : __data_(__size, __a) {} - _LIBCPP_HIDE_FROM_ABI - void operator()(pointer __p) _NOEXCEPT - { - __alloc_traits::deallocate(__alloc(), __p, size()); - } + _LIBCPP_HIDE_FROM_ABI __bucket_list_deallocator(__bucket_list_deallocator&& __x) + _NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value) + : __data_(std::move(__x.__data_)) { + __x.size() = 0; + } + + _LIBCPP_HIDE_FROM_ABI size_type& size() _NOEXCEPT { return __data_.first(); } + _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __data_.first(); } + + _LIBCPP_HIDE_FROM_ABI allocator_type& __alloc() _NOEXCEPT { return __data_.second(); } + _LIBCPP_HIDE_FROM_ABI const allocator_type& __alloc() const _NOEXCEPT { return __data_.second(); } + + _LIBCPP_HIDE_FROM_ABI void operator()(pointer __p) _NOEXCEPT { __alloc_traits::deallocate(__alloc(), __p, size()); } }; -template <class _Alloc> class __hash_map_node_destructor; +template <class _Alloc> +class __hash_map_node_destructor; template <class _Alloc> -class __hash_node_destructor -{ - typedef _Alloc allocator_type; - typedef allocator_traits<allocator_type> __alloc_traits; +class __hash_node_destructor { + typedef _Alloc allocator_type; + typedef allocator_traits<allocator_type> __alloc_traits; public: - typedef typename __alloc_traits::pointer pointer; + typedef typename __alloc_traits::pointer pointer; + private: - typedef __hash_node_types<pointer> _NodeTypes; + typedef __hash_node_types<pointer> _NodeTypes; - allocator_type& __na_; + allocator_type& __na_; public: - bool __value_constructed; - - _LIBCPP_HIDE_FROM_ABI __hash_node_destructor(__hash_node_destructor const&) = default; - _LIBCPP_HIDE_FROM_ABI __hash_node_destructor& operator=(const __hash_node_destructor&) = delete; + bool __value_constructed; + _LIBCPP_HIDE_FROM_ABI __hash_node_destructor(__hash_node_destructor const&) = default; + _LIBCPP_HIDE_FROM_ABI __hash_node_destructor& operator=(const __hash_node_destructor&) = delete; - _LIBCPP_HIDE_FROM_ABI - explicit __hash_node_destructor(allocator_type& __na, - bool __constructed = false) _NOEXCEPT - : __na_(__na), - __value_constructed(__constructed) - {} + _LIBCPP_HIDE_FROM_ABI explicit __hash_node_destructor(allocator_type& __na, bool __constructed = false) _NOEXCEPT + : __na_(__na), + __value_constructed(__constructed) {} - _LIBCPP_HIDE_FROM_ABI - void operator()(pointer __p) _NOEXCEPT - { - if (__value_constructed) { - __alloc_traits::destroy(__na_, _NodeTypes::__get_ptr(__p->__get_value())); - std::__destroy_at(std::addressof(*__p)); - } - if (__p) - __alloc_traits::deallocate(__na_, __p, 1); + _LIBCPP_HIDE_FROM_ABI void operator()(pointer __p) _NOEXCEPT { + if (__value_constructed) { + __alloc_traits::destroy(__na_, _NodeTypes::__get_ptr(__p->__get_value())); + std::__destroy_at(std::addressof(*__p)); } + if (__p) + __alloc_traits::deallocate(__na_, __p, 1); + } - template <class> friend class __hash_map_node_destructor; + template <class> + friend class __hash_map_node_destructor; }; #if _LIBCPP_STD_VER >= 17 @@ -713,33 +596,30 @@ template <class _NodeType, class _Alloc> struct __generic_container_node_destructor; template <class _Tp, class _VoidPtr, class _Alloc> -struct __generic_container_node_destructor<__hash_node<_Tp, _VoidPtr>, _Alloc> - : __hash_node_destructor<_Alloc> -{ - using __hash_node_destructor<_Alloc>::__hash_node_destructor; +struct __generic_container_node_destructor<__hash_node<_Tp, _VoidPtr>, _Alloc> : __hash_node_destructor<_Alloc> { + using __hash_node_destructor<_Alloc>::__hash_node_destructor; }; #endif template <class _Key, class _Hash, class _Equal> struct __enforce_unordered_container_requirements { #ifndef _LIBCPP_CXX03_LANG - static_assert(__check_hash_requirements<_Key, _Hash>::value, - "the specified hash does not meet the Hash requirements"); - static_assert(is_copy_constructible<_Equal>::value, - "the specified comparator is required to be copy constructible"); + static_assert(__check_hash_requirements<_Key, _Hash>::value, + "the specified hash does not meet the Hash requirements"); + static_assert(is_copy_constructible<_Equal>::value, "the specified comparator is required to be copy constructible"); #endif - typedef int type; + typedef int type; }; template <class _Key, class _Hash, class _Equal> #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_DIAGNOSE_WARNING(!__invokable<_Equal const&, _Key const&, _Key const&>::value, - "the specified comparator type does not provide a viable const call operator") - _LIBCPP_DIAGNOSE_WARNING(!__invokable<_Hash const&, _Key const&>::value, - "the specified hash functor does not provide a viable const call operator") +_LIBCPP_DIAGNOSE_WARNING(!__invokable<_Equal const&, _Key const&, _Key const&>::value, + "the specified comparator type does not provide a viable const call operator") +_LIBCPP_DIAGNOSE_WARNING(!__invokable<_Hash const&, _Key const&>::value, + "the specified hash functor does not provide a viable const call operator") #endif -typename __enforce_unordered_container_requirements<_Key, _Hash, _Equal>::type -__diagnose_unordered_container_requirements(int); + typename __enforce_unordered_container_requirements<_Key, _Hash, _Equal>::type + __diagnose_unordered_container_requirements(int); // This dummy overload is used so that the compiler won't emit a spurious // "no matching function for call to __diagnose_unordered_xxx" diagnostic @@ -748,890 +628,668 @@ template <class _Key, class _Hash, class _Equal> int __diagnose_unordered_container_requirements(void*); template <class _Tp, class _Hash, class _Equal, class _Alloc> -class __hash_table -{ +class __hash_table { public: - typedef _Tp value_type; - typedef _Hash hasher; - typedef _Equal key_equal; - typedef _Alloc allocator_type; + typedef _Tp value_type; + typedef _Hash hasher; + typedef _Equal key_equal; + typedef _Alloc allocator_type; private: - typedef allocator_traits<allocator_type> __alloc_traits; - typedef typename - __make_hash_node_types<value_type, typename __alloc_traits::void_pointer>::type - _NodeTypes; -public: + typedef allocator_traits<allocator_type> __alloc_traits; + typedef typename __make_hash_node_types<value_type, typename __alloc_traits::void_pointer>::type _NodeTypes; - typedef typename _NodeTypes::__node_value_type __node_value_type; - typedef typename _NodeTypes::__container_value_type __container_value_type; - typedef typename _NodeTypes::key_type key_type; - typedef value_type& reference; - typedef const value_type& const_reference; - typedef typename __alloc_traits::pointer pointer; - typedef typename __alloc_traits::const_pointer const_pointer; +public: + typedef typename _NodeTypes::__node_value_type __node_value_type; + typedef typename _NodeTypes::__container_value_type __container_value_type; + typedef typename _NodeTypes::key_type key_type; + typedef value_type& reference; + typedef const value_type& const_reference; + typedef typename __alloc_traits::pointer pointer; + typedef typename __alloc_traits::const_pointer const_pointer; #ifndef _LIBCPP_ABI_FIX_UNORDERED_CONTAINER_SIZE_TYPE - typedef typename __alloc_traits::size_type size_type; + typedef typename __alloc_traits::size_type size_type; #else - typedef typename _NodeTypes::size_type size_type; + typedef typename _NodeTypes::size_type size_type; #endif - typedef typename _NodeTypes::difference_type difference_type; + typedef typename _NodeTypes::difference_type difference_type; + public: - // Create __node - - typedef typename _NodeTypes::__node_type __node; - typedef __rebind_alloc<__alloc_traits, __node> __node_allocator; - typedef allocator_traits<__node_allocator> __node_traits; - typedef typename _NodeTypes::__void_pointer __void_pointer; - typedef typename _NodeTypes::__node_pointer __node_pointer; - typedef typename _NodeTypes::__node_pointer __node_const_pointer; - typedef typename _NodeTypes::__node_base_type __first_node; - typedef typename _NodeTypes::__node_base_pointer __node_base_pointer; - typedef typename _NodeTypes::__next_pointer __next_pointer; + // Create __node + + typedef typename _NodeTypes::__node_type __node; + typedef __rebind_alloc<__alloc_traits, __node> __node_allocator; + typedef allocator_traits<__node_allocator> __node_traits; + typedef typename _NodeTypes::__void_pointer __void_pointer; + typedef typename _NodeTypes::__node_pointer __node_pointer; + typedef typename _NodeTypes::__node_pointer __node_const_pointer; + typedef typename _NodeTypes::__node_base_type __first_node; + typedef typename _NodeTypes::__node_base_pointer __node_base_pointer; + typedef typename _NodeTypes::__next_pointer __next_pointer; private: - // check for sane allocator pointer rebinding semantics. Rebinding the - // allocator for a new pointer type should be exactly the same as rebinding - // the pointer using 'pointer_traits'. - static_assert((is_same<__node_pointer, typename __node_traits::pointer>::value), - "Allocator does not rebind pointers in a sane manner."); - typedef __rebind_alloc<__node_traits, __first_node> __node_base_allocator; - typedef allocator_traits<__node_base_allocator> __node_base_traits; - static_assert((is_same<__node_base_pointer, typename __node_base_traits::pointer>::value), - "Allocator does not rebind pointers in a sane manner."); + // check for sane allocator pointer rebinding semantics. Rebinding the + // allocator for a new pointer type should be exactly the same as rebinding + // the pointer using 'pointer_traits'. + static_assert((is_same<__node_pointer, typename __node_traits::pointer>::value), + "Allocator does not rebind pointers in a sane manner."); + typedef __rebind_alloc<__node_traits, __first_node> __node_base_allocator; + typedef allocator_traits<__node_base_allocator> __node_base_traits; + static_assert((is_same<__node_base_pointer, typename __node_base_traits::pointer>::value), + "Allocator does not rebind pointers in a sane manner."); private: + typedef __rebind_alloc<__node_traits, __next_pointer> __pointer_allocator; + typedef __bucket_list_deallocator<__pointer_allocator> __bucket_list_deleter; + typedef unique_ptr<__next_pointer[], __bucket_list_deleter> __bucket_list; + typedef allocator_traits<__pointer_allocator> __pointer_alloc_traits; + typedef typename __bucket_list_deleter::pointer __node_pointer_pointer; + + // --- Member data begin --- + __bucket_list __bucket_list_; + __compressed_pair<__first_node, __node_allocator> __p1_; + __compressed_pair<size_type, hasher> __p2_; + __compressed_pair<float, key_equal> __p3_; + // --- Member data end --- + + _LIBCPP_HIDE_FROM_ABI size_type& size() _NOEXCEPT { return __p2_.first(); } - typedef __rebind_alloc<__node_traits, __next_pointer> __pointer_allocator; - typedef __bucket_list_deallocator<__pointer_allocator> __bucket_list_deleter; - typedef unique_ptr<__next_pointer[], __bucket_list_deleter> __bucket_list; - typedef allocator_traits<__pointer_allocator> __pointer_alloc_traits; - typedef typename __bucket_list_deleter::pointer __node_pointer_pointer; - - // --- Member data begin --- - __bucket_list __bucket_list_; - __compressed_pair<__first_node, __node_allocator> __p1_; - __compressed_pair<size_type, hasher> __p2_; - __compressed_pair<float, key_equal> __p3_; - // --- Member data end --- - - _LIBCPP_HIDE_FROM_ABI - size_type& size() _NOEXCEPT {return __p2_.first();} public: - _LIBCPP_HIDE_FROM_ABI - size_type size() const _NOEXCEPT {return __p2_.first();} - - _LIBCPP_HIDE_FROM_ABI - hasher& hash_function() _NOEXCEPT {return __p2_.second();} - _LIBCPP_HIDE_FROM_ABI - const hasher& hash_function() const _NOEXCEPT {return __p2_.second();} - - _LIBCPP_HIDE_FROM_ABI - float& max_load_factor() _NOEXCEPT {return __p3_.first();} - _LIBCPP_HIDE_FROM_ABI - float max_load_factor() const _NOEXCEPT {return __p3_.first();} - - _LIBCPP_HIDE_FROM_ABI - key_equal& key_eq() _NOEXCEPT {return __p3_.second();} - _LIBCPP_HIDE_FROM_ABI - const key_equal& key_eq() const _NOEXCEPT {return __p3_.second();} - - _LIBCPP_HIDE_FROM_ABI - __node_allocator& __node_alloc() _NOEXCEPT {return __p1_.second();} - _LIBCPP_HIDE_FROM_ABI - const __node_allocator& __node_alloc() const _NOEXCEPT - {return __p1_.second();} + _LIBCPP_HIDE_FROM_ABI size_type size() const _NOEXCEPT { return __p2_.first(); } + + _LIBCPP_HIDE_FROM_ABI hasher& hash_function() _NOEXCEPT { return __p2_.second(); } + _LIBCPP_HIDE_FROM_ABI const hasher& hash_function() const _NOEXCEPT { return __p2_.second(); } + + _LIBCPP_HIDE_FROM_ABI float& max_load_factor() _NOEXCEPT { return __p3_.first(); } + _LIBCPP_HIDE_FROM_ABI float max_load_factor() const _NOEXCEPT { return __p3_.first(); } + + _LIBCPP_HIDE_FROM_ABI key_equal& key_eq() _NOEXCEPT { return __p3_.second(); } + _LIBCPP_HIDE_FROM_ABI const key_equal& key_eq() const _NOEXCEPT { return __p3_.second(); } + + _LIBCPP_HIDE_FROM_ABI __node_allocator& __node_alloc() _NOEXCEPT { return __p1_.second(); } + _LIBCPP_HIDE_FROM_ABI const __node_allocator& __node_alloc() const _NOEXCEPT { return __p1_.second(); } public: - typedef __hash_iterator<__node_pointer> iterator; - typedef __hash_const_iterator<__node_pointer> const_iterator; - typedef __hash_local_iterator<__node_pointer> local_iterator; - typedef __hash_const_local_iterator<__node_pointer> const_local_iterator; - - _LIBCPP_HIDE_FROM_ABI - __hash_table() - _NOEXCEPT_( - is_nothrow_default_constructible<__bucket_list>::value && - is_nothrow_default_constructible<__first_node>::value && - is_nothrow_default_constructible<__node_allocator>::value && - is_nothrow_default_constructible<hasher>::value && - is_nothrow_default_constructible<key_equal>::value); - _LIBCPP_HIDE_FROM_ABI - __hash_table(const hasher& __hf, const key_equal& __eql); - _LIBCPP_HIDE_FROM_ABI __hash_table(const hasher& __hf, const key_equal& __eql, - const allocator_type& __a); - _LIBCPP_HIDE_FROM_ABI explicit __hash_table(const allocator_type& __a); - _LIBCPP_HIDE_FROM_ABI __hash_table(const __hash_table& __u); - _LIBCPP_HIDE_FROM_ABI __hash_table(const __hash_table& __u, const allocator_type& __a); - _LIBCPP_HIDE_FROM_ABI __hash_table(__hash_table&& __u) - _NOEXCEPT_( - is_nothrow_move_constructible<__bucket_list>::value && - is_nothrow_move_constructible<__first_node>::value && - is_nothrow_move_constructible<__node_allocator>::value && - is_nothrow_move_constructible<hasher>::value && - is_nothrow_move_constructible<key_equal>::value); - _LIBCPP_HIDE_FROM_ABI __hash_table(__hash_table&& __u, const allocator_type& __a); - _LIBCPP_HIDE_FROM_ABI ~__hash_table(); - - _LIBCPP_HIDE_FROM_ABI __hash_table& operator=(const __hash_table& __u); - _LIBCPP_HIDE_FROM_ABI - __hash_table& operator=(__hash_table&& __u) - _NOEXCEPT_( - __node_traits::propagate_on_container_move_assignment::value && - is_nothrow_move_assignable<__node_allocator>::value && - is_nothrow_move_assignable<hasher>::value && - is_nothrow_move_assignable<key_equal>::value); - template <class _InputIterator> - _LIBCPP_HIDE_FROM_ABI void __assign_unique(_InputIterator __first, _InputIterator __last); - template <class _InputIterator> - _LIBCPP_HIDE_FROM_ABI void __assign_multi(_InputIterator __first, _InputIterator __last); - - _LIBCPP_HIDE_FROM_ABI - size_type max_size() const _NOEXCEPT - { - return std::min<size_type>( - __node_traits::max_size(__node_alloc()), - numeric_limits<difference_type >::max() - ); - } + typedef __hash_iterator<__node_pointer> iterator; + typedef __hash_const_iterator<__node_pointer> const_iterator; + typedef __hash_local_iterator<__node_pointer> local_iterator; + typedef __hash_const_local_iterator<__node_pointer> const_local_iterator; + + _LIBCPP_HIDE_FROM_ABI __hash_table() _NOEXCEPT_( + is_nothrow_default_constructible<__bucket_list>::value&& is_nothrow_default_constructible<__first_node>::value&& + is_nothrow_default_constructible<__node_allocator>::value&& is_nothrow_default_constructible<hasher>::value&& + is_nothrow_default_constructible<key_equal>::value); + _LIBCPP_HIDE_FROM_ABI __hash_table(const hasher& __hf, const key_equal& __eql); + _LIBCPP_HIDE_FROM_ABI __hash_table(const hasher& __hf, const key_equal& __eql, const allocator_type& __a); + _LIBCPP_HIDE_FROM_ABI explicit __hash_table(const allocator_type& __a); + _LIBCPP_HIDE_FROM_ABI __hash_table(const __hash_table& __u); + _LIBCPP_HIDE_FROM_ABI __hash_table(const __hash_table& __u, const allocator_type& __a); + _LIBCPP_HIDE_FROM_ABI __hash_table(__hash_table&& __u) _NOEXCEPT_( + is_nothrow_move_constructible<__bucket_list>::value&& is_nothrow_move_constructible<__first_node>::value&& + is_nothrow_move_constructible<__node_allocator>::value&& is_nothrow_move_constructible<hasher>::value&& + is_nothrow_move_constructible<key_equal>::value); + _LIBCPP_HIDE_FROM_ABI __hash_table(__hash_table&& __u, const allocator_type& __a); + _LIBCPP_HIDE_FROM_ABI ~__hash_table(); + + _LIBCPP_HIDE_FROM_ABI __hash_table& operator=(const __hash_table& __u); + _LIBCPP_HIDE_FROM_ABI __hash_table& operator=(__hash_table&& __u) + _NOEXCEPT_(__node_traits::propagate_on_container_move_assignment::value&& + is_nothrow_move_assignable<__node_allocator>::value&& is_nothrow_move_assignable<hasher>::value&& + is_nothrow_move_assignable<key_equal>::value); + template <class _InputIterator> + _LIBCPP_HIDE_FROM_ABI void __assign_unique(_InputIterator __first, _InputIterator __last); + template <class _InputIterator> + _LIBCPP_HIDE_FROM_ABI void __assign_multi(_InputIterator __first, _InputIterator __last); + + _LIBCPP_HIDE_FROM_ABI size_type max_size() const _NOEXCEPT { + return std::min<size_type>(__node_traits::max_size(__node_alloc()), numeric_limits<difference_type >::max()); + } private: - _LIBCPP_HIDE_FROM_ABI - __next_pointer __node_insert_multi_prepare(size_t __cp_hash, - value_type& __cp_val); - _LIBCPP_HIDE_FROM_ABI - void __node_insert_multi_perform(__node_pointer __cp, - __next_pointer __pn) _NOEXCEPT; - - _LIBCPP_HIDE_FROM_ABI - __next_pointer __node_insert_unique_prepare(size_t __nd_hash, - value_type& __nd_val); - _LIBCPP_HIDE_FROM_ABI - void __node_insert_unique_perform(__node_pointer __ptr) _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI __next_pointer __node_insert_multi_prepare(size_t __cp_hash, value_type& __cp_val); + _LIBCPP_HIDE_FROM_ABI void __node_insert_multi_perform(__node_pointer __cp, __next_pointer __pn) _NOEXCEPT; + + _LIBCPP_HIDE_FROM_ABI __next_pointer __node_insert_unique_prepare(size_t __nd_hash, value_type& __nd_val); + _LIBCPP_HIDE_FROM_ABI void __node_insert_unique_perform(__node_pointer __ptr) _NOEXCEPT; public: - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> __node_insert_unique(__node_pointer __nd); - _LIBCPP_HIDE_FROM_ABI - iterator __node_insert_multi(__node_pointer __nd); - _LIBCPP_HIDE_FROM_ABI - iterator __node_insert_multi(const_iterator __p, - __node_pointer __nd); - - template <class _Key, class ..._Args> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> __emplace_unique_key_args(_Key const& __k, _Args&&... __args); - - template <class... _Args> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> __emplace_unique_impl(_Args&&... __args); - - template <class _Pp> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> __emplace_unique(_Pp&& __x) { - return __emplace_unique_extract_key(std::forward<_Pp>(__x), - __can_extract_key<_Pp, key_type>()); - } + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __node_insert_unique(__node_pointer __nd); + _LIBCPP_HIDE_FROM_ABI iterator __node_insert_multi(__node_pointer __nd); + _LIBCPP_HIDE_FROM_ABI iterator __node_insert_multi(const_iterator __p, __node_pointer __nd); - template <class _First, class _Second, - __enable_if_t<__can_extract_map_key<_First, key_type, __container_value_type>::value, int> = 0> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> - __emplace_unique(_First&& __f, _Second&& __s) { - return __emplace_unique_key_args(__f, std::forward<_First>(__f), - std::forward<_Second>(__s)); - } + template <class _Key, class... _Args> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique_key_args(_Key const& __k, _Args&&... __args); - template <class... _Args> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> __emplace_unique(_Args&&... __args) { - return __emplace_unique_impl(std::forward<_Args>(__args)...); - } + template <class... _Args> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique_impl(_Args&&... __args); - template <class _Pp> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> - __emplace_unique_extract_key(_Pp&& __x, __extract_key_fail_tag) { - return __emplace_unique_impl(std::forward<_Pp>(__x)); - } - template <class _Pp> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> - __emplace_unique_extract_key(_Pp&& __x, __extract_key_self_tag) { - return __emplace_unique_key_args(__x, std::forward<_Pp>(__x)); - } - template <class _Pp> - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> - __emplace_unique_extract_key(_Pp&& __x, __extract_key_first_tag) { - return __emplace_unique_key_args(__x.first, std::forward<_Pp>(__x)); - } + template <class _Pp> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique(_Pp&& __x) { + return __emplace_unique_extract_key(std::forward<_Pp>(__x), __can_extract_key<_Pp, key_type>()); + } - template <class... _Args> - _LIBCPP_HIDE_FROM_ABI - iterator __emplace_multi(_Args&&... __args); - template <class... _Args> - _LIBCPP_HIDE_FROM_ABI - iterator __emplace_hint_multi(const_iterator __p, _Args&&... __args); + template <class _First, + class _Second, + __enable_if_t<__can_extract_map_key<_First, key_type, __container_value_type>::value, int> = 0> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique(_First&& __f, _Second&& __s) { + return __emplace_unique_key_args(__f, std::forward<_First>(__f), std::forward<_Second>(__s)); + } + template <class... _Args> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique(_Args&&... __args) { + return __emplace_unique_impl(std::forward<_Args>(__args)...); + } - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> - __insert_unique(__container_value_type&& __x) { - return __emplace_unique_key_args(_NodeTypes::__get_key(__x), std::move(__x)); - } + template <class _Pp> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique_extract_key(_Pp&& __x, __extract_key_fail_tag) { + return __emplace_unique_impl(std::forward<_Pp>(__x)); + } + template <class _Pp> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique_extract_key(_Pp&& __x, __extract_key_self_tag) { + return __emplace_unique_key_args(__x, std::forward<_Pp>(__x)); + } + template <class _Pp> + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __emplace_unique_extract_key(_Pp&& __x, __extract_key_first_tag) { + return __emplace_unique_key_args(__x.first, std::forward<_Pp>(__x)); + } - template <class _Pp, class = __enable_if_t<!__is_same_uncvref<_Pp, __container_value_type>::value> > - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> __insert_unique(_Pp&& __x) { - return __emplace_unique(std::forward<_Pp>(__x)); - } + template <class... _Args> + _LIBCPP_HIDE_FROM_ABI iterator __emplace_multi(_Args&&... __args); + template <class... _Args> + _LIBCPP_HIDE_FROM_ABI iterator __emplace_hint_multi(const_iterator __p, _Args&&... __args); - template <class _Pp> - _LIBCPP_HIDE_FROM_ABI - iterator __insert_multi(_Pp&& __x) { - return __emplace_multi(std::forward<_Pp>(__x)); - } + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __insert_unique(__container_value_type&& __x) { + return __emplace_unique_key_args(_NodeTypes::__get_key(__x), std::move(__x)); + } - template <class _Pp> - _LIBCPP_HIDE_FROM_ABI - iterator __insert_multi(const_iterator __p, _Pp&& __x) { - return __emplace_hint_multi(__p, std::forward<_Pp>(__x)); - } + template <class _Pp, class = __enable_if_t<!__is_same_uncvref<_Pp, __container_value_type>::value> > + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __insert_unique(_Pp&& __x) { + return __emplace_unique(std::forward<_Pp>(__x)); + } - _LIBCPP_HIDE_FROM_ABI - pair<iterator, bool> __insert_unique(const __container_value_type& __x) { - return __emplace_unique_key_args(_NodeTypes::__get_key(__x), __x); - } + template <class _Pp> + _LIBCPP_HIDE_FROM_ABI iterator __insert_multi(_Pp&& __x) { + return __emplace_multi(std::forward<_Pp>(__x)); + } + + template <class _Pp> + _LIBCPP_HIDE_FROM_ABI iterator __insert_multi(const_iterator __p, _Pp&& __x) { + return __emplace_hint_multi(__p, std::forward<_Pp>(__x)); + } + + _LIBCPP_HIDE_FROM_ABI pair<iterator, bool> __insert_unique(const __container_value_type& __x) { + return __emplace_unique_key_args(_NodeTypes::__get_key(__x), __x); + } #if _LIBCPP_STD_VER >= 17 - template <class _NodeHandle, class _InsertReturnType> - _LIBCPP_HIDE_FROM_ABI - _InsertReturnType __node_handle_insert_unique(_NodeHandle&& __nh); - template <class _NodeHandle> - _LIBCPP_HIDE_FROM_ABI - iterator __node_handle_insert_unique(const_iterator __hint, - _NodeHandle&& __nh); - template <class _Table> - _LIBCPP_HIDE_FROM_ABI - void __node_handle_merge_unique(_Table& __source); - - template <class _NodeHandle> - _LIBCPP_HIDE_FROM_ABI - iterator __node_handle_insert_multi(_NodeHandle&& __nh); - template <class _NodeHandle> - _LIBCPP_HIDE_FROM_ABI - iterator __node_handle_insert_multi(const_iterator __hint, _NodeHandle&& __nh); - template <class _Table> - _LIBCPP_HIDE_FROM_ABI - void __node_handle_merge_multi(_Table& __source); - - template <class _NodeHandle> - _LIBCPP_HIDE_FROM_ABI - _NodeHandle __node_handle_extract(key_type const& __key); - template <class _NodeHandle> - _LIBCPP_HIDE_FROM_ABI - _NodeHandle __node_handle_extract(const_iterator __it); + template <class _NodeHandle, class _InsertReturnType> + _LIBCPP_HIDE_FROM_ABI _InsertReturnType __node_handle_insert_unique(_NodeHandle&& __nh); + template <class _NodeHandle> + _LIBCPP_HIDE_FROM_ABI iterator __node_handle_insert_unique(const_iterator __hint, _NodeHandle&& __nh); + template <class _Table> + _LIBCPP_HIDE_FROM_ABI void __node_handle_merge_unique(_Table& __source); + + template <class _NodeHandle> + _LIBCPP_HIDE_FROM_ABI iterator __node_handle_insert_multi(_NodeHandle&& __nh); + template <class _NodeHandle> + _LIBCPP_HIDE_FROM_ABI iterator __node_handle_insert_multi(const_iterator __hint, _NodeHandle&& __nh); + template <class _Table> + _LIBCPP_HIDE_FROM_ABI void __node_handle_merge_multi(_Table& __source); + + template <class _NodeHandle> + _LIBCPP_HIDE_FROM_ABI _NodeHandle __node_handle_extract(key_type const& __key); + template <class _NodeHandle> + _LIBCPP_HIDE_FROM_ABI _NodeHandle __node_handle_extract(const_iterator __it); #endif - _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI void __rehash_unique(size_type __n) { __rehash<true>(__n); } - _LIBCPP_HIDE_FROM_ABI void __rehash_multi(size_type __n) { __rehash<false>(__n); } - _LIBCPP_HIDE_FROM_ABI void __reserve_unique(size_type __n) - { - __rehash_unique(static_cast<size_type>(std::ceil(__n / max_load_factor()))); - } - _LIBCPP_HIDE_FROM_ABI void __reserve_multi(size_type __n) - { - __rehash_multi(static_cast<size_type>(std::ceil(__n / max_load_factor()))); - } + _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI void __rehash_unique(size_type __n) { __rehash<true>(__n); } + _LIBCPP_HIDE_FROM_ABI void __rehash_multi(size_type __n) { __rehash<false>(__n); } + _LIBCPP_HIDE_FROM_ABI void __reserve_unique(size_type __n) { + __rehash_unique(static_cast<size_type>(std::ceil(__n / max_load_factor()))); + } + _LIBCPP_HIDE_FROM_ABI void __reserve_multi(size_type __n) { + __rehash_multi(static_cast<size_type>(std::ceil(__n / max_load_factor()))); + } - _LIBCPP_HIDE_FROM_ABI - size_type bucket_count() const _NOEXCEPT - { - return __bucket_list_.get_deleter().size(); - } + _LIBCPP_HIDE_FROM_ABI size_type bucket_count() const _NOEXCEPT { return __bucket_list_.get_deleter().size(); } - _LIBCPP_HIDE_FROM_ABI - iterator begin() _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI - iterator end() _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI - const_iterator begin() const _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI - const_iterator end() const _NOEXCEPT; - - template <class _Key> - _LIBCPP_HIDE_FROM_ABI - size_type bucket(const _Key& __k) const - { - _LIBCPP_ASSERT_UNCATEGORIZED(bucket_count() > 0, - "unordered container::bucket(key) called when bucket_count() == 0"); - return std::__constrain_hash(hash_function()(__k), bucket_count()); - } + _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT; + + template <class _Key> + _LIBCPP_HIDE_FROM_ABI size_type bucket(const _Key& __k) const { + _LIBCPP_ASSERT_UNCATEGORIZED( + bucket_count() > 0, "unordered container::bucket(key) called when bucket_count() == 0"); + return std::__constrain_hash(hash_function()(__k), bucket_count()); + } - template <class _Key> - _LIBCPP_HIDE_FROM_ABI iterator find(const _Key& __x); - template <class _Key> - _LIBCPP_HIDE_FROM_ABI const_iterator find(const _Key& __x) const; - - typedef __hash_node_destructor<__node_allocator> _Dp; - typedef unique_ptr<__node, _Dp> __node_holder; - - _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p); - _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __first, const_iterator __last); - template <class _Key> - _LIBCPP_HIDE_FROM_ABI size_type __erase_unique(const _Key& __k); - template <class _Key> - _LIBCPP_HIDE_FROM_ABI size_type __erase_multi(const _Key& __k); - _LIBCPP_HIDE_FROM_ABI __node_holder remove(const_iterator __p) _NOEXCEPT; - - template <class _Key> - _LIBCPP_HIDE_FROM_ABI - size_type __count_unique(const _Key& __k) const; - template <class _Key> - _LIBCPP_HIDE_FROM_ABI size_type __count_multi(const _Key& __k) const; - - template <class _Key> - _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> - __equal_range_unique(const _Key& __k); - template <class _Key> - _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> - __equal_range_unique(const _Key& __k) const; - - template <class _Key> - _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> - __equal_range_multi(const _Key& __k); - template <class _Key> - _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> - __equal_range_multi(const _Key& __k) const; - - _LIBCPP_HIDE_FROM_ABI void swap(__hash_table& __u) + template <class _Key> + _LIBCPP_HIDE_FROM_ABI iterator find(const _Key& __x); + template <class _Key> + _LIBCPP_HIDE_FROM_ABI const_iterator find(const _Key& __x) const; + + typedef __hash_node_destructor<__node_allocator> _Dp; + typedef unique_ptr<__node, _Dp> __node_holder; + + _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __p); + _LIBCPP_HIDE_FROM_ABI iterator erase(const_iterator __first, const_iterator __last); + template <class _Key> + _LIBCPP_HIDE_FROM_ABI size_type __erase_unique(const _Key& __k); + template <class _Key> + _LIBCPP_HIDE_FROM_ABI size_type __erase_multi(const _Key& __k); + _LIBCPP_HIDE_FROM_ABI __node_holder remove(const_iterator __p) _NOEXCEPT; + + template <class _Key> + _LIBCPP_HIDE_FROM_ABI size_type __count_unique(const _Key& __k) const; + template <class _Key> + _LIBCPP_HIDE_FROM_ABI size_type __count_multi(const _Key& __k) const; + + template <class _Key> + _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> __equal_range_unique(const _Key& __k); + template <class _Key> + _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> __equal_range_unique(const _Key& __k) const; + + template <class _Key> + _LIBCPP_HIDE_FROM_ABI pair<iterator, iterator> __equal_range_multi(const _Key& __k); + template <class _Key> + _LIBCPP_HIDE_FROM_ABI pair<const_iterator, const_iterator> __equal_range_multi(const _Key& __k) const; + + _LIBCPP_HIDE_FROM_ABI void swap(__hash_table& __u) #if _LIBCPP_STD_VER <= 11 - _NOEXCEPT_( - __is_nothrow_swappable<hasher>::value && __is_nothrow_swappable<key_equal>::value - && (!allocator_traits<__pointer_allocator>::propagate_on_container_swap::value - || __is_nothrow_swappable<__pointer_allocator>::value) - && (!__node_traits::propagate_on_container_swap::value - || __is_nothrow_swappable<__node_allocator>::value) - ); + _NOEXCEPT_(__is_nothrow_swappable<hasher>::value&& __is_nothrow_swappable<key_equal>::value && + (!allocator_traits<__pointer_allocator>::propagate_on_container_swap::value || + __is_nothrow_swappable<__pointer_allocator>::value) && + (!__node_traits::propagate_on_container_swap::value || + __is_nothrow_swappable<__node_allocator>::value)); #else - _NOEXCEPT_(__is_nothrow_swappable<hasher>::value && __is_nothrow_swappable<key_equal>::value); + _NOEXCEPT_(__is_nothrow_swappable<hasher>::value&& __is_nothrow_swappable<key_equal>::value); #endif - _LIBCPP_HIDE_FROM_ABI - size_type max_bucket_count() const _NOEXCEPT - {return max_size(); } - _LIBCPP_HIDE_FROM_ABI size_type bucket_size(size_type __n) const; - _LIBCPP_HIDE_FROM_ABI float load_factor() const _NOEXCEPT - { - size_type __bc = bucket_count(); - return __bc != 0 ? (float)size() / __bc : 0.f; - } - _LIBCPP_HIDE_FROM_ABI void max_load_factor(float __mlf) _NOEXCEPT - { - _LIBCPP_ASSERT_UNCATEGORIZED(__mlf > 0, - "unordered container::max_load_factor(lf) called with lf <= 0"); - max_load_factor() = std::max(__mlf, load_factor()); - } + _LIBCPP_HIDE_FROM_ABI size_type max_bucket_count() const _NOEXCEPT { return max_size(); } + _LIBCPP_HIDE_FROM_ABI size_type bucket_size(size_type __n) const; + _LIBCPP_HIDE_FROM_ABI float load_factor() const _NOEXCEPT { + size_type __bc = bucket_count(); + return __bc != 0 ? (float)size() / __bc : 0.f; + } + _LIBCPP_HIDE_FROM_ABI void max_load_factor(float __mlf) _NOEXCEPT { + _LIBCPP_ASSERT_UNCATEGORIZED(__mlf > 0, "unordered container::max_load_factor(lf) called with lf <= 0"); + max_load_factor() = std::max(__mlf, load_factor()); + } - _LIBCPP_HIDE_FROM_ABI - local_iterator - begin(size_type __n) - { - _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__n < bucket_count(), - "unordered container::begin(n) called with n >= bucket_count()"); - return local_iterator(__bucket_list_[__n], __n, bucket_count()); - } + _LIBCPP_HIDE_FROM_ABI local_iterator begin(size_type __n) { + _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS( + __n < bucket_count(), "unordered container::begin(n) called with n >= bucket_count()"); + return local_iterator(__bucket_list_[__n], __n, bucket_count()); + } - _LIBCPP_HIDE_FROM_ABI - local_iterator - end(size_type __n) - { - _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__n < bucket_count(), - "unordered container::end(n) called with n >= bucket_count()"); - return local_iterator(nullptr, __n, bucket_count()); - } + _LIBCPP_HIDE_FROM_ABI local_iterator end(size_type __n) { + _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS( + __n < bucket_count(), "unordered container::end(n) called with n >= bucket_count()"); + return local_iterator(nullptr, __n, bucket_count()); + } - _LIBCPP_HIDE_FROM_ABI - const_local_iterator - cbegin(size_type __n) const - { - _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__n < bucket_count(), - "unordered container::cbegin(n) called with n >= bucket_count()"); - return const_local_iterator(__bucket_list_[__n], __n, bucket_count()); - } + _LIBCPP_HIDE_FROM_ABI const_local_iterator cbegin(size_type __n) const { + _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS( + __n < bucket_count(), "unordered container::cbegin(n) called with n >= bucket_count()"); + return const_local_iterator(__bucket_list_[__n], __n, bucket_count()); + } - _LIBCPP_HIDE_FROM_ABI - const_local_iterator - cend(size_type __n) const - { - _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__n < bucket_count(), - "unordered container::cend(n) called with n >= bucket_count()"); - return const_local_iterator(nullptr, __n, bucket_count()); - } + _LIBCPP_HIDE_FROM_ABI const_local_iterator cend(size_type __n) const { + _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS( + __n < bucket_count(), "unordered container::cend(n) called with n >= bucket_count()"); + return const_local_iterator(nullptr, __n, bucket_count()); + } private: - template <bool _UniqueKeys> - _LIBCPP_HIDE_FROM_ABI void __rehash(size_type __n); - template <bool _UniqueKeys> - _LIBCPP_HIDE_FROM_ABI void __do_rehash(size_type __n); - - template <class ..._Args> - _LIBCPP_HIDE_FROM_ABI __node_holder __construct_node(_Args&& ...__args); - - template <class _First, class ..._Rest> - _LIBCPP_HIDE_FROM_ABI __node_holder __construct_node_hash(size_t __hash, _First&& __f, _Rest&&... __rest); - - - _LIBCPP_HIDE_FROM_ABI - void __copy_assign_alloc(const __hash_table& __u) - {__copy_assign_alloc(__u, integral_constant<bool, - __node_traits::propagate_on_container_copy_assignment::value>());} - _LIBCPP_HIDE_FROM_ABI void __copy_assign_alloc(const __hash_table& __u, true_type); - _LIBCPP_HIDE_FROM_ABI - void __copy_assign_alloc(const __hash_table&, false_type) {} - - _LIBCPP_HIDE_FROM_ABI void __move_assign(__hash_table& __u, false_type); - _LIBCPP_HIDE_FROM_ABI void __move_assign(__hash_table& __u, true_type) - _NOEXCEPT_( - is_nothrow_move_assignable<__node_allocator>::value && - is_nothrow_move_assignable<hasher>::value && - is_nothrow_move_assignable<key_equal>::value); - _LIBCPP_HIDE_FROM_ABI - void __move_assign_alloc(__hash_table& __u) - _NOEXCEPT_( - !__node_traits::propagate_on_container_move_assignment::value || - (is_nothrow_move_assignable<__pointer_allocator>::value && - is_nothrow_move_assignable<__node_allocator>::value)) - {__move_assign_alloc(__u, integral_constant<bool, - __node_traits::propagate_on_container_move_assignment::value>());} - _LIBCPP_HIDE_FROM_ABI - void __move_assign_alloc(__hash_table& __u, true_type) - _NOEXCEPT_( - is_nothrow_move_assignable<__pointer_allocator>::value && - is_nothrow_move_assignable<__node_allocator>::value) - { - __bucket_list_.get_deleter().__alloc() = - std::move(__u.__bucket_list_.get_deleter().__alloc()); - __node_alloc() = std::move(__u.__node_alloc()); - } - _LIBCPP_HIDE_FROM_ABI - void __move_assign_alloc(__hash_table&, false_type) _NOEXCEPT {} + template <bool _UniqueKeys> + _LIBCPP_HIDE_FROM_ABI void __rehash(size_type __n); + template <bool _UniqueKeys> + _LIBCPP_HIDE_FROM_ABI void __do_rehash(size_type __n); - _LIBCPP_HIDE_FROM_ABI void __deallocate_node(__next_pointer __np) _NOEXCEPT; - _LIBCPP_HIDE_FROM_ABI __next_pointer __detach() _NOEXCEPT; + template <class... _Args> + _LIBCPP_HIDE_FROM_ABI __node_holder __construct_node(_Args&&... __args); - template <class, class, class, class, class> friend class _LIBCPP_TEMPLATE_VIS unordered_map; - template <class, class, class, class, class> friend class _LIBCPP_TEMPLATE_VIS unordered_multimap; + template <class _First, class... _Rest> + _LIBCPP_HIDE_FROM_ABI __node_holder __construct_node_hash(size_t __hash, _First&& __f, _Rest&&... __rest); + + _LIBCPP_HIDE_FROM_ABI void __copy_assign_alloc(const __hash_table& __u) { + __copy_assign_alloc(__u, integral_constant<bool, __node_traits::propagate_on_container_copy_assignment::value>()); + } + _LIBCPP_HIDE_FROM_ABI void __copy_assign_alloc(const __hash_table& __u, true_type); + _LIBCPP_HIDE_FROM_ABI void __copy_assign_alloc(const __hash_table&, false_type) {} + + _LIBCPP_HIDE_FROM_ABI void __move_assign(__hash_table& __u, false_type); + _LIBCPP_HIDE_FROM_ABI void __move_assign(__hash_table& __u, true_type) + _NOEXCEPT_(is_nothrow_move_assignable<__node_allocator>::value&& is_nothrow_move_assignable<hasher>::value&& + is_nothrow_move_assignable<key_equal>::value); + _LIBCPP_HIDE_FROM_ABI void __move_assign_alloc(__hash_table& __u) _NOEXCEPT_( + !__node_traits::propagate_on_container_move_assignment::value || + (is_nothrow_move_assignable<__pointer_allocator>::value && is_nothrow_move_assignable<__node_allocator>::value)) { + __move_assign_alloc(__u, integral_constant<bool, __node_traits::propagate_on_container_move_assignment::value>()); + } + _LIBCPP_HIDE_FROM_ABI void __move_assign_alloc(__hash_table& __u, true_type) _NOEXCEPT_( + is_nothrow_move_assignable<__pointer_allocator>::value&& is_nothrow_move_assignable<__node_allocator>::value) { + __bucket_list_.get_deleter().__alloc() = std::move(__u.__bucket_list_.get_deleter().__alloc()); + __node_alloc() = std::move(__u.__node_alloc()); + } + _LIBCPP_HIDE_FROM_ABI void __move_assign_alloc(__hash_table&, false_type) _NOEXCEPT {} + + _LIBCPP_HIDE_FROM_ABI void __deallocate_node(__next_pointer __np) _NOEXCEPT; + _LIBCPP_HIDE_FROM_ABI __next_pointer __detach() _NOEXCEPT; + + template <class, class, class, class, class> + friend class _LIBCPP_TEMPLATE_VIS unordered_map; + template <class, class, class, class, class> + friend class _LIBCPP_TEMPLATE_VIS unordered_multimap; }; template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table() - _NOEXCEPT_( - is_nothrow_default_constructible<__bucket_list>::value && - is_nothrow_default_constructible<__first_node>::value && - is_nothrow_default_constructible<__node_allocator>::value && - is_nothrow_default_constructible<hasher>::value && - is_nothrow_default_constructible<key_equal>::value) - : __p2_(0, __default_init_tag()), - __p3_(1.0f, __default_init_tag()) -{ -} +inline __hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table() _NOEXCEPT_( + is_nothrow_default_constructible<__bucket_list>::value&& is_nothrow_default_constructible<__first_node>::value&& + is_nothrow_default_constructible<__node_allocator>::value&& is_nothrow_default_constructible<hasher>::value&& + is_nothrow_default_constructible<key_equal>::value) + : __p2_(0, __default_init_tag()), __p3_(1.0f, __default_init_tag()) {} template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(const hasher& __hf, - const key_equal& __eql) - : __bucket_list_(nullptr, __bucket_list_deleter()), - __p1_(), - __p2_(0, __hf), - __p3_(1.0f, __eql) -{ -} +inline __hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(const hasher& __hf, const key_equal& __eql) + : __bucket_list_(nullptr, __bucket_list_deleter()), __p1_(), __p2_(0, __hf), __p3_(1.0f, __eql) {} template <class _Tp, class _Hash, class _Equal, class _Alloc> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(const hasher& __hf, - const key_equal& __eql, - const allocator_type& __a) +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table( + const hasher& __hf, const key_equal& __eql, const allocator_type& __a) : __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)), __p1_(__default_init_tag(), __node_allocator(__a)), __p2_(0, __hf), - __p3_(1.0f, __eql) -{ -} + __p3_(1.0f, __eql) {} template <class _Tp, class _Hash, class _Equal, class _Alloc> __hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(const allocator_type& __a) : __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)), __p1_(__default_init_tag(), __node_allocator(__a)), __p2_(0, __default_init_tag()), - __p3_(1.0f, __default_init_tag()) -{ -} + __p3_(1.0f, __default_init_tag()) {} template <class _Tp, class _Hash, class _Equal, class _Alloc> __hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(const __hash_table& __u) : __bucket_list_(nullptr, - __bucket_list_deleter(allocator_traits<__pointer_allocator>:: - select_on_container_copy_construction( - __u.__bucket_list_.get_deleter().__alloc()), 0)), - __p1_(__default_init_tag(), allocator_traits<__node_allocator>:: - select_on_container_copy_construction(__u.__node_alloc())), + __bucket_list_deleter(allocator_traits<__pointer_allocator>::select_on_container_copy_construction( + __u.__bucket_list_.get_deleter().__alloc()), + 0)), + __p1_(__default_init_tag(), + allocator_traits<__node_allocator>::select_on_container_copy_construction(__u.__node_alloc())), __p2_(0, __u.hash_function()), - __p3_(__u.__p3_) -{ -} + __p3_(__u.__p3_) {} template <class _Tp, class _Hash, class _Equal, class _Alloc> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(const __hash_table& __u, - const allocator_type& __a) +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(const __hash_table& __u, const allocator_type& __a) : __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)), __p1_(__default_init_tag(), __node_allocator(__a)), __p2_(0, __u.hash_function()), - __p3_(__u.__p3_) -{ -} + __p3_(__u.__p3_) {} template <class _Tp, class _Hash, class _Equal, class _Alloc> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(__hash_table&& __u) - _NOEXCEPT_( - is_nothrow_move_constructible<__bucket_list>::value && - is_nothrow_move_constructible<__first_node>::value && - is_nothrow_move_constructible<__node_allocator>::value && - is_nothrow_move_constructible<hasher>::value && +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(__hash_table&& __u) _NOEXCEPT_( + is_nothrow_move_constructible<__bucket_list>::value&& is_nothrow_move_constructible<__first_node>::value&& + is_nothrow_move_constructible<__node_allocator>::value&& is_nothrow_move_constructible<hasher>::value&& is_nothrow_move_constructible<key_equal>::value) : __bucket_list_(std::move(__u.__bucket_list_)), __p1_(std::move(__u.__p1_)), __p2_(std::move(__u.__p2_)), - __p3_(std::move(__u.__p3_)) -{ - if (size() > 0) - { - __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = - __p1_.first().__ptr(); - __u.__p1_.first().__next_ = nullptr; - __u.size() = 0; - } + __p3_(std::move(__u.__p3_)) { + if (size() > 0) { + __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = __p1_.first().__ptr(); + __u.__p1_.first().__next_ = nullptr; + __u.size() = 0; + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(__hash_table&& __u, - const allocator_type& __a) +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(__hash_table&& __u, const allocator_type& __a) : __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)), __p1_(__default_init_tag(), __node_allocator(__a)), __p2_(0, std::move(__u.hash_function())), - __p3_(std::move(__u.__p3_)) -{ - if (__a == allocator_type(__u.__node_alloc())) - { - __bucket_list_.reset(__u.__bucket_list_.release()); - __bucket_list_.get_deleter().size() = __u.__bucket_list_.get_deleter().size(); - __u.__bucket_list_.get_deleter().size() = 0; - if (__u.size() > 0) - { - __p1_.first().__next_ = __u.__p1_.first().__next_; - __u.__p1_.first().__next_ = nullptr; - __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = - __p1_.first().__ptr(); - size() = __u.size(); - __u.size() = 0; - } + __p3_(std::move(__u.__p3_)) { + if (__a == allocator_type(__u.__node_alloc())) { + __bucket_list_.reset(__u.__bucket_list_.release()); + __bucket_list_.get_deleter().size() = __u.__bucket_list_.get_deleter().size(); + __u.__bucket_list_.get_deleter().size() = 0; + if (__u.size() > 0) { + __p1_.first().__next_ = __u.__p1_.first().__next_; + __u.__p1_.first().__next_ = nullptr; + __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = __p1_.first().__ptr(); + size() = __u.size(); + __u.size() = 0; } + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::~__hash_table() -{ +__hash_table<_Tp, _Hash, _Equal, _Alloc>::~__hash_table() { #if defined(_LIBCPP_CXX03_LANG) - static_assert((is_copy_constructible<key_equal>::value), - "Predicate must be copy-constructible."); - static_assert((is_copy_constructible<hasher>::value), - "Hasher must be copy-constructible."); + static_assert((is_copy_constructible<key_equal>::value), "Predicate must be copy-constructible."); + static_assert((is_copy_constructible<hasher>::value), "Hasher must be copy-constructible."); #endif - __deallocate_node(__p1_.first().__next_); + __deallocate_node(__p1_.first().__next_); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__copy_assign_alloc( - const __hash_table& __u, true_type) -{ - if (__node_alloc() != __u.__node_alloc()) - { - clear(); - __bucket_list_.reset(); - __bucket_list_.get_deleter().size() = 0; - } - __bucket_list_.get_deleter().__alloc() = __u.__bucket_list_.get_deleter().__alloc(); - __node_alloc() = __u.__node_alloc(); +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__copy_assign_alloc(const __hash_table& __u, true_type) { + if (__node_alloc() != __u.__node_alloc()) { + clear(); + __bucket_list_.reset(); + __bucket_list_.get_deleter().size() = 0; + } + __bucket_list_.get_deleter().__alloc() = __u.__bucket_list_.get_deleter().__alloc(); + __node_alloc() = __u.__node_alloc(); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -__hash_table<_Tp, _Hash, _Equal, _Alloc>& -__hash_table<_Tp, _Hash, _Equal, _Alloc>::operator=(const __hash_table& __u) -{ - if (this != std::addressof(__u)) - { - __copy_assign_alloc(__u); - hash_function() = __u.hash_function(); - key_eq() = __u.key_eq(); - max_load_factor() = __u.max_load_factor(); - __assign_multi(__u.begin(), __u.end()); - } - return *this; +__hash_table<_Tp, _Hash, _Equal, _Alloc>& __hash_table<_Tp, _Hash, _Equal, _Alloc>::operator=(const __hash_table& __u) { + if (this != std::addressof(__u)) { + __copy_assign_alloc(__u); + hash_function() = __u.hash_function(); + key_eq() = __u.key_eq(); + max_load_factor() = __u.max_load_factor(); + __assign_multi(__u.begin(), __u.end()); + } + return *this; } template <class _Tp, class _Hash, class _Equal, class _Alloc> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__deallocate_node(__next_pointer __np) - _NOEXCEPT -{ - __node_allocator& __na = __node_alloc(); - while (__np != nullptr) - { - __next_pointer __next = __np->__next_; - __node_pointer __real_np = __np->__upcast(); - __node_traits::destroy(__na, _NodeTypes::__get_ptr(__real_np->__get_value())); - std::__destroy_at(std::addressof(*__real_np)); - __node_traits::deallocate(__na, __real_np, 1); - __np = __next; - } +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__deallocate_node(__next_pointer __np) _NOEXCEPT { + __node_allocator& __na = __node_alloc(); + while (__np != nullptr) { + __next_pointer __next = __np->__next_; + __node_pointer __real_np = __np->__upcast(); + __node_traits::destroy(__na, _NodeTypes::__get_ptr(__real_np->__get_value())); + std::__destroy_at(std::addressof(*__real_np)); + __node_traits::deallocate(__na, __real_np, 1); + __np = __next; + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__next_pointer -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__detach() _NOEXCEPT -{ - size_type __bc = bucket_count(); - for (size_type __i = 0; __i < __bc; ++__i) - __bucket_list_[__i] = nullptr; - size() = 0; - __next_pointer __cache = __p1_.first().__next_; - __p1_.first().__next_ = nullptr; - return __cache; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__detach() _NOEXCEPT { + size_type __bc = bucket_count(); + for (size_type __i = 0; __i < __bc; ++__i) + __bucket_list_[__i] = nullptr; + size() = 0; + __next_pointer __cache = __p1_.first().__next_; + __p1_.first().__next_ = nullptr; + return __cache; } template <class _Tp, class _Hash, class _Equal, class _Alloc> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__move_assign( - __hash_table& __u, true_type) - _NOEXCEPT_( - is_nothrow_move_assignable<__node_allocator>::value && - is_nothrow_move_assignable<hasher>::value && - is_nothrow_move_assignable<key_equal>::value) -{ - clear(); - __bucket_list_.reset(__u.__bucket_list_.release()); - __bucket_list_.get_deleter().size() = __u.__bucket_list_.get_deleter().size(); - __u.__bucket_list_.get_deleter().size() = 0; - __move_assign_alloc(__u); - size() = __u.size(); - hash_function() = std::move(__u.hash_function()); - max_load_factor() = __u.max_load_factor(); - key_eq() = std::move(__u.key_eq()); - __p1_.first().__next_ = __u.__p1_.first().__next_; - if (size() > 0) - { - __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = - __p1_.first().__ptr(); - __u.__p1_.first().__next_ = nullptr; - __u.size() = 0; - } +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__move_assign(__hash_table& __u, true_type) + _NOEXCEPT_(is_nothrow_move_assignable<__node_allocator>::value&& is_nothrow_move_assignable<hasher>::value&& + is_nothrow_move_assignable<key_equal>::value) { + clear(); + __bucket_list_.reset(__u.__bucket_list_.release()); + __bucket_list_.get_deleter().size() = __u.__bucket_list_.get_deleter().size(); + __u.__bucket_list_.get_deleter().size() = 0; + __move_assign_alloc(__u); + size() = __u.size(); + hash_function() = std::move(__u.hash_function()); + max_load_factor() = __u.max_load_factor(); + key_eq() = std::move(__u.key_eq()); + __p1_.first().__next_ = __u.__p1_.first().__next_; + if (size() > 0) { + __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = __p1_.first().__ptr(); + __u.__p1_.first().__next_ = nullptr; + __u.size() = 0; + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__move_assign( - __hash_table& __u, false_type) -{ - if (__node_alloc() == __u.__node_alloc()) - __move_assign(__u, true_type()); - else - { - hash_function() = std::move(__u.hash_function()); - key_eq() = std::move(__u.key_eq()); - max_load_factor() = __u.max_load_factor(); - if (bucket_count() != 0) - { - __next_pointer __cache = __detach(); -#ifndef _LIBCPP_HAS_NO_EXCEPTIONS - try - { -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - const_iterator __i = __u.begin(); - while (__cache != nullptr && __u.size() != 0) - { - __cache->__upcast()->__get_value() = - std::move(__u.remove(__i++)->__get_value()); - __next_pointer __next = __cache->__next_; - __node_insert_multi(__cache->__upcast()); - __cache = __next; - } +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__move_assign(__hash_table& __u, false_type) { + if (__node_alloc() == __u.__node_alloc()) + __move_assign(__u, true_type()); + else { + hash_function() = std::move(__u.hash_function()); + key_eq() = std::move(__u.key_eq()); + max_load_factor() = __u.max_load_factor(); + if (bucket_count() != 0) { + __next_pointer __cache = __detach(); #ifndef _LIBCPP_HAS_NO_EXCEPTIONS - } - catch (...) - { - __deallocate_node(__cache); - throw; - } + try { #endif // _LIBCPP_HAS_NO_EXCEPTIONS - __deallocate_node(__cache); - } const_iterator __i = __u.begin(); - while (__u.size() != 0) - { - __node_holder __h = __construct_node(_NodeTypes::__move(__u.remove(__i++)->__get_value())); - __node_insert_multi(__h.get()); - __h.release(); + while (__cache != nullptr && __u.size() != 0) { + __cache->__upcast()->__get_value() = std::move(__u.remove(__i++)->__get_value()); + __next_pointer __next = __cache->__next_; + __node_insert_multi(__cache->__upcast()); + __cache = __next; } +#ifndef _LIBCPP_HAS_NO_EXCEPTIONS + } catch (...) { + __deallocate_node(__cache); + throw; + } +#endif // _LIBCPP_HAS_NO_EXCEPTIONS + __deallocate_node(__cache); + } + const_iterator __i = __u.begin(); + while (__u.size() != 0) { + __node_holder __h = __construct_node(_NodeTypes::__move(__u.remove(__i++)->__get_value())); + __node_insert_multi(__h.get()); + __h.release(); } + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline -__hash_table<_Tp, _Hash, _Equal, _Alloc>& -__hash_table<_Tp, _Hash, _Equal, _Alloc>::operator=(__hash_table&& __u) - _NOEXCEPT_( - __node_traits::propagate_on_container_move_assignment::value && - is_nothrow_move_assignable<__node_allocator>::value && - is_nothrow_move_assignable<hasher>::value && - is_nothrow_move_assignable<key_equal>::value) -{ - __move_assign(__u, integral_constant<bool, - __node_traits::propagate_on_container_move_assignment::value>()); - return *this; +inline __hash_table<_Tp, _Hash, _Equal, _Alloc>& +__hash_table<_Tp, _Hash, _Equal, _Alloc>::operator=(__hash_table&& __u) _NOEXCEPT_( + __node_traits::propagate_on_container_move_assignment::value&& is_nothrow_move_assignable<__node_allocator>::value&& + is_nothrow_move_assignable<hasher>::value&& is_nothrow_move_assignable<key_equal>::value) { + __move_assign(__u, integral_constant<bool, __node_traits::propagate_on_container_move_assignment::value>()); + return *this; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _InputIterator> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__assign_unique(_InputIterator __first, - _InputIterator __last) -{ - typedef iterator_traits<_InputIterator> _ITraits; - typedef typename _ITraits::value_type _ItValueType; - static_assert((is_same<_ItValueType, __container_value_type>::value), - "__assign_unique may only be called with the containers value type"); - - if (bucket_count() != 0) - { - __next_pointer __cache = __detach(); +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__assign_unique(_InputIterator __first, _InputIterator __last) { + typedef iterator_traits<_InputIterator> _ITraits; + typedef typename _ITraits::value_type _ItValueType; + static_assert((is_same<_ItValueType, __container_value_type>::value), + "__assign_unique may only be called with the containers value type"); + + if (bucket_count() != 0) { + __next_pointer __cache = __detach(); #ifndef _LIBCPP_HAS_NO_EXCEPTIONS - try - { + try { #endif // _LIBCPP_HAS_NO_EXCEPTIONS - for (; __cache != nullptr && __first != __last; ++__first) - { - __cache->__upcast()->__get_value() = *__first; - __next_pointer __next = __cache->__next_; - __node_insert_unique(__cache->__upcast()); - __cache = __next; - } + for (; __cache != nullptr && __first != __last; ++__first) { + __cache->__upcast()->__get_value() = *__first; + __next_pointer __next = __cache->__next_; + __node_insert_unique(__cache->__upcast()); + __cache = __next; + } #ifndef _LIBCPP_HAS_NO_EXCEPTIONS - } - catch (...) - { - __deallocate_node(__cache); - throw; - } -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - __deallocate_node(__cache); + } catch (...) { + __deallocate_node(__cache); + throw; } - for (; __first != __last; ++__first) - __insert_unique(*__first); +#endif // _LIBCPP_HAS_NO_EXCEPTIONS + __deallocate_node(__cache); + } + for (; __first != __last; ++__first) + __insert_unique(*__first); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _InputIterator> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__assign_multi(_InputIterator __first, - _InputIterator __last) -{ - typedef iterator_traits<_InputIterator> _ITraits; - typedef typename _ITraits::value_type _ItValueType; - static_assert((is_same<_ItValueType, __container_value_type>::value || - is_same<_ItValueType, __node_value_type>::value), - "__assign_multi may only be called with the containers value type" - " or the nodes value type"); - if (bucket_count() != 0) - { - __next_pointer __cache = __detach(); +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__assign_multi(_InputIterator __first, _InputIterator __last) { + typedef iterator_traits<_InputIterator> _ITraits; + typedef typename _ITraits::value_type _ItValueType; + static_assert( + (is_same<_ItValueType, __container_value_type>::value || is_same<_ItValueType, __node_value_type>::value), + "__assign_multi may only be called with the containers value type" + " or the nodes value type"); + if (bucket_count() != 0) { + __next_pointer __cache = __detach(); #ifndef _LIBCPP_HAS_NO_EXCEPTIONS - try - { + try { #endif // _LIBCPP_HAS_NO_EXCEPTIONS - for (; __cache != nullptr && __first != __last; ++__first) - { - __cache->__upcast()->__get_value() = *__first; - __next_pointer __next = __cache->__next_; - __node_insert_multi(__cache->__upcast()); - __cache = __next; - } + for (; __cache != nullptr && __first != __last; ++__first) { + __cache->__upcast()->__get_value() = *__first; + __next_pointer __next = __cache->__next_; + __node_insert_multi(__cache->__upcast()); + __cache = __next; + } #ifndef _LIBCPP_HAS_NO_EXCEPTIONS - } - catch (...) - { - __deallocate_node(__cache); - throw; - } -#endif // _LIBCPP_HAS_NO_EXCEPTIONS - __deallocate_node(__cache); + } catch (...) { + __deallocate_node(__cache); + throw; } - for (; __first != __last; ++__first) - __insert_multi(_NodeTypes::__get_value(*__first)); +#endif // _LIBCPP_HAS_NO_EXCEPTIONS + __deallocate_node(__cache); + } + for (; __first != __last; ++__first) + __insert_multi(_NodeTypes::__get_value(*__first)); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::begin() _NOEXCEPT -{ - return iterator(__p1_.first().__next_); +inline typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator +__hash_table<_Tp, _Hash, _Equal, _Alloc>::begin() _NOEXCEPT { + return iterator(__p1_.first().__next_); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::end() _NOEXCEPT -{ - return iterator(nullptr); +inline typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator +__hash_table<_Tp, _Hash, _Equal, _Alloc>::end() _NOEXCEPT { + return iterator(nullptr); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::begin() const _NOEXCEPT -{ - return const_iterator(__p1_.first().__next_); +inline typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator +__hash_table<_Tp, _Hash, _Equal, _Alloc>::begin() const _NOEXCEPT { + return const_iterator(__p1_.first().__next_); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::end() const _NOEXCEPT -{ - return const_iterator(nullptr); +inline typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator +__hash_table<_Tp, _Hash, _Equal, _Alloc>::end() const _NOEXCEPT { + return const_iterator(nullptr); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::clear() _NOEXCEPT -{ - if (size() > 0) - { - __deallocate_node(__p1_.first().__next_); - __p1_.first().__next_ = nullptr; - size_type __bc = bucket_count(); - for (size_type __i = 0; __i < __bc; ++__i) - __bucket_list_[__i] = nullptr; - size() = 0; - } +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::clear() _NOEXCEPT { + if (size() > 0) { + __deallocate_node(__p1_.first().__next_); + __p1_.first().__next_ = nullptr; + size_type __bc = bucket_count(); + for (size_type __i = 0; __i < __bc; ++__i) + __bucket_list_[__i] = nullptr; + size() = 0; + } } - // Prepare the container for an insertion of the value __value with the hash // __hash. This does a lookup into the container to see if __value is already // present, and performs a rehash if necessary. Returns a pointer to the @@ -1640,36 +1298,28 @@ __hash_table<_Tp, _Hash, _Equal, _Alloc>::clear() _NOEXCEPT // Note that this function does forward exceptions if key_eq() throws, and never // mutates __value or actually inserts into the map. template <class _Tp, class _Hash, class _Equal, class _Alloc> -_LIBCPP_HIDE_FROM_ABI -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__next_pointer -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique_prepare( - size_t __hash, value_type& __value) -{ - size_type __bc = bucket_count(); - - if (__bc != 0) - { - size_t __chash = std::__constrain_hash(__hash, __bc); - __next_pointer __ndptr = __bucket_list_[__chash]; - if (__ndptr != nullptr) - { - for (__ndptr = __ndptr->__next_; __ndptr != nullptr && - (__ndptr->__hash() == __hash || - std::__constrain_hash(__ndptr->__hash(), __bc) == __chash); - __ndptr = __ndptr->__next_) - { - if ((__ndptr->__hash() == __hash) && - key_eq()(__ndptr->__upcast()->__get_value(), __value)) - return __ndptr; - } - } - } - if (size()+1 > __bc * max_load_factor() || __bc == 0) - { - __rehash_unique(std::max<size_type>(2 * __bc + !std::__is_hash_power2(__bc), - size_type(std::ceil(float(size() + 1) / max_load_factor())))); +_LIBCPP_HIDE_FROM_ABI typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__next_pointer +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique_prepare(size_t __hash, value_type& __value) { + size_type __bc = bucket_count(); + + if (__bc != 0) { + size_t __chash = std::__constrain_hash(__hash, __bc); + __next_pointer __ndptr = __bucket_list_[__chash]; + if (__ndptr != nullptr) { + for (__ndptr = __ndptr->__next_; + __ndptr != nullptr && + (__ndptr->__hash() == __hash || std::__constrain_hash(__ndptr->__hash(), __bc) == __chash); + __ndptr = __ndptr->__next_) { + if ((__ndptr->__hash() == __hash) && key_eq()(__ndptr->__upcast()->__get_value(), __value)) + return __ndptr; + } } - return nullptr; + } + if (size() + 1 > __bc * max_load_factor() || __bc == 0) { + __rehash_unique(std::max<size_type>( + 2 * __bc + !std::__is_hash_power2(__bc), size_type(std::ceil(float(size() + 1) / max_load_factor())))); + } + return nullptr; } // Insert the node __nd into the container by pushing it into the right bucket, @@ -1677,50 +1327,41 @@ __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique_prepare( // rehashing has already occurred and that no element with the same key exists // in the map. template <class _Tp, class _Hash, class _Equal, class _Alloc> -_LIBCPP_HIDE_FROM_ABI -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique_perform( - __node_pointer __nd) _NOEXCEPT -{ - size_type __bc = bucket_count(); - size_t __chash = std::__constrain_hash(__nd->__hash(), __bc); - // insert_after __bucket_list_[__chash], or __first_node if bucket is null - __next_pointer __pn = __bucket_list_[__chash]; - if (__pn == nullptr) - { - __pn =__p1_.first().__ptr(); - __nd->__next_ = __pn->__next_; - __pn->__next_ = __nd->__ptr(); - // fix up __bucket_list_ - __bucket_list_[__chash] = __pn; - if (__nd->__next_ != nullptr) - __bucket_list_[std::__constrain_hash(__nd->__next_->__hash(), __bc)] = __nd->__ptr(); - } - else - { - __nd->__next_ = __pn->__next_; - __pn->__next_ = __nd->__ptr(); - } - ++size(); +_LIBCPP_HIDE_FROM_ABI void +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique_perform(__node_pointer __nd) _NOEXCEPT { + size_type __bc = bucket_count(); + size_t __chash = std::__constrain_hash(__nd->__hash(), __bc); + // insert_after __bucket_list_[__chash], or __first_node if bucket is null + __next_pointer __pn = __bucket_list_[__chash]; + if (__pn == nullptr) { + __pn = __p1_.first().__ptr(); + __nd->__next_ = __pn->__next_; + __pn->__next_ = __nd->__ptr(); + // fix up __bucket_list_ + __bucket_list_[__chash] = __pn; + if (__nd->__next_ != nullptr) + __bucket_list_[std::__constrain_hash(__nd->__next_->__hash(), __bc)] = __nd->__ptr(); + } else { + __nd->__next_ = __pn->__next_; + __pn->__next_ = __nd->__ptr(); + } + ++size(); } template <class _Tp, class _Hash, class _Equal, class _Alloc> pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator, bool> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique(__node_pointer __nd) -{ - __nd->__hash_ = hash_function()(__nd->__get_value()); - __next_pointer __existing_node = - __node_insert_unique_prepare(__nd->__hash(), __nd->__get_value()); - - // Insert the node, unless it already exists in the container. - bool __inserted = false; - if (__existing_node == nullptr) - { - __node_insert_unique_perform(__nd); - __existing_node = __nd->__ptr(); - __inserted = true; - } - return pair<iterator, bool>(iterator(__existing_node), __inserted); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique(__node_pointer __nd) { + __nd->__hash_ = hash_function()(__nd->__get_value()); + __next_pointer __existing_node = __node_insert_unique_prepare(__nd->__hash(), __nd->__get_value()); + + // Insert the node, unless it already exists in the container. + bool __inserted = false; + if (__existing_node == nullptr) { + __node_insert_unique_perform(__nd); + __existing_node = __nd->__ptr(); + __inserted = true; + } + return pair<iterator, bool>(iterator(__existing_node), __inserted); } // Prepare the container for an insertion of the value __cp_val with the hash @@ -1732,40 +1373,34 @@ __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_unique(__node_pointer __ // mutates __value or actually inserts into the map. template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__next_pointer -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi_prepare( - size_t __cp_hash, value_type& __cp_val) -{ - size_type __bc = bucket_count(); - if (size()+1 > __bc * max_load_factor() || __bc == 0) - { - __rehash_multi(std::max<size_type>(2 * __bc + !std::__is_hash_power2(__bc), - size_type(std::ceil(float(size() + 1) / max_load_factor())))); - __bc = bucket_count(); - } - size_t __chash = std::__constrain_hash(__cp_hash, __bc); - __next_pointer __pn = __bucket_list_[__chash]; - if (__pn != nullptr) - { - for (bool __found = false; __pn->__next_ != nullptr && - std::__constrain_hash(__pn->__next_->__hash(), __bc) == __chash; - __pn = __pn->__next_) - { - // __found key_eq() action - // false false loop - // true true loop - // false true set __found to true - // true false break - if (__found != (__pn->__next_->__hash() == __cp_hash && - key_eq()(__pn->__next_->__upcast()->__get_value(), __cp_val))) - { - if (!__found) - __found = true; - else - break; - } - } +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi_prepare(size_t __cp_hash, value_type& __cp_val) { + size_type __bc = bucket_count(); + if (size() + 1 > __bc * max_load_factor() || __bc == 0) { + __rehash_multi(std::max<size_type>( + 2 * __bc + !std::__is_hash_power2(__bc), size_type(std::ceil(float(size() + 1) / max_load_factor())))); + __bc = bucket_count(); + } + size_t __chash = std::__constrain_hash(__cp_hash, __bc); + __next_pointer __pn = __bucket_list_[__chash]; + if (__pn != nullptr) { + for (bool __found = false; + __pn->__next_ != nullptr && std::__constrain_hash(__pn->__next_->__hash(), __bc) == __chash; + __pn = __pn->__next_) { + // __found key_eq() action + // false false loop + // true true loop + // false true set __found to true + // true false break + if (__found != + (__pn->__next_->__hash() == __cp_hash && key_eq()(__pn->__next_->__upcast()->__get_value(), __cp_val))) { + if (!__found) + __found = true; + else + break; + } } - return __pn; + } + return __pn; } // Insert the node __cp into the container after __pn (which is the last node in @@ -1774,746 +1409,601 @@ __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi_prepare( // all we need to do is update the bucket and size(). Assumes that __cp->__hash // is up-to-date. template <class _Tp, class _Hash, class _Equal, class _Alloc> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi_perform( - __node_pointer __cp, __next_pointer __pn) _NOEXCEPT -{ - size_type __bc = bucket_count(); - size_t __chash = std::__constrain_hash(__cp->__hash_, __bc); - if (__pn == nullptr) - { - __pn =__p1_.first().__ptr(); - __cp->__next_ = __pn->__next_; - __pn->__next_ = __cp->__ptr(); - // fix up __bucket_list_ - __bucket_list_[__chash] = __pn; - if (__cp->__next_ != nullptr) - __bucket_list_[std::__constrain_hash(__cp->__next_->__hash(), __bc)] - = __cp->__ptr(); - } - else - { - __cp->__next_ = __pn->__next_; - __pn->__next_ = __cp->__ptr(); - if (__cp->__next_ != nullptr) - { - size_t __nhash = std::__constrain_hash(__cp->__next_->__hash(), __bc); - if (__nhash != __chash) - __bucket_list_[__nhash] = __cp->__ptr(); - } +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi_perform( + __node_pointer __cp, __next_pointer __pn) _NOEXCEPT { + size_type __bc = bucket_count(); + size_t __chash = std::__constrain_hash(__cp->__hash_, __bc); + if (__pn == nullptr) { + __pn = __p1_.first().__ptr(); + __cp->__next_ = __pn->__next_; + __pn->__next_ = __cp->__ptr(); + // fix up __bucket_list_ + __bucket_list_[__chash] = __pn; + if (__cp->__next_ != nullptr) + __bucket_list_[std::__constrain_hash(__cp->__next_->__hash(), __bc)] = __cp->__ptr(); + } else { + __cp->__next_ = __pn->__next_; + __pn->__next_ = __cp->__ptr(); + if (__cp->__next_ != nullptr) { + size_t __nhash = std::__constrain_hash(__cp->__next_->__hash(), __bc); + if (__nhash != __chash) + __bucket_list_[__nhash] = __cp->__ptr(); } - ++size(); + } + ++size(); } - template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi(__node_pointer __cp) -{ - __cp->__hash_ = hash_function()(__cp->__get_value()); - __next_pointer __pn = __node_insert_multi_prepare(__cp->__hash(), __cp->__get_value()); - __node_insert_multi_perform(__cp, __pn); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi(__node_pointer __cp) { + __cp->__hash_ = hash_function()(__cp->__get_value()); + __next_pointer __pn = __node_insert_multi_prepare(__cp->__hash(), __cp->__get_value()); + __node_insert_multi_perform(__cp, __pn); - return iterator(__cp->__ptr()); + return iterator(__cp->__ptr()); } template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi( - const_iterator __p, __node_pointer __cp) -{ - if (__p != end() && key_eq()(*__p, __cp->__get_value())) - { - __next_pointer __np = __p.__node_; - __cp->__hash_ = __np->__hash(); - size_type __bc = bucket_count(); - if (size()+1 > __bc * max_load_factor() || __bc == 0) - { - __rehash_multi(std::max<size_type>(2 * __bc + !std::__is_hash_power2(__bc), - size_type(std::ceil(float(size() + 1) / max_load_factor())))); - __bc = bucket_count(); - } - size_t __chash = std::__constrain_hash(__cp->__hash_, __bc); - __next_pointer __pp = __bucket_list_[__chash]; - while (__pp->__next_ != __np) - __pp = __pp->__next_; - __cp->__next_ = __np; - __pp->__next_ = static_cast<__next_pointer>(__cp); - ++size(); - return iterator(static_cast<__next_pointer>(__cp)); - } - return __node_insert_multi(__cp); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi(const_iterator __p, __node_pointer __cp) { + if (__p != end() && key_eq()(*__p, __cp->__get_value())) { + __next_pointer __np = __p.__node_; + __cp->__hash_ = __np->__hash(); + size_type __bc = bucket_count(); + if (size() + 1 > __bc * max_load_factor() || __bc == 0) { + __rehash_multi(std::max<size_type>( + 2 * __bc + !std::__is_hash_power2(__bc), size_type(std::ceil(float(size() + 1) / max_load_factor())))); + __bc = bucket_count(); + } + size_t __chash = std::__constrain_hash(__cp->__hash_, __bc); + __next_pointer __pp = __bucket_list_[__chash]; + while (__pp->__next_ != __np) + __pp = __pp->__next_; + __cp->__next_ = __np; + __pp->__next_ = static_cast<__next_pointer>(__cp); + ++size(); + return iterator(static_cast<__next_pointer>(__cp)); + } + return __node_insert_multi(__cp); } - - template <class _Tp, class _Hash, class _Equal, class _Alloc> -template <class _Key, class ..._Args> +template <class _Key, class... _Args> pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator, bool> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_unique_key_args(_Key const& __k, _Args&&... __args) -{ - - size_t __hash = hash_function()(__k); - size_type __bc = bucket_count(); - bool __inserted = false; - __next_pointer __nd; - size_t __chash; - if (__bc != 0) - { - __chash = std::__constrain_hash(__hash, __bc); - __nd = __bucket_list_[__chash]; - if (__nd != nullptr) - { - for (__nd = __nd->__next_; __nd != nullptr && - (__nd->__hash() == __hash || std::__constrain_hash(__nd->__hash(), __bc) == __chash); - __nd = __nd->__next_) - { - if ((__nd->__hash() == __hash) && - key_eq()(__nd->__upcast()->__get_value(), __k)) - goto __done; - } - } +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_unique_key_args(_Key const& __k, _Args&&... __args) { + size_t __hash = hash_function()(__k); + size_type __bc = bucket_count(); + bool __inserted = false; + __next_pointer __nd; + size_t __chash; + if (__bc != 0) { + __chash = std::__constrain_hash(__hash, __bc); + __nd = __bucket_list_[__chash]; + if (__nd != nullptr) { + for (__nd = __nd->__next_; + __nd != nullptr && (__nd->__hash() == __hash || std::__constrain_hash(__nd->__hash(), __bc) == __chash); + __nd = __nd->__next_) { + if ((__nd->__hash() == __hash) && key_eq()(__nd->__upcast()->__get_value(), __k)) + goto __done; + } } - { - __node_holder __h = __construct_node_hash(__hash, std::forward<_Args>(__args)...); - if (size()+1 > __bc * max_load_factor() || __bc == 0) - { - __rehash_unique(std::max<size_type>(2 * __bc + !std::__is_hash_power2(__bc), - size_type(std::ceil(float(size() + 1) / max_load_factor())))); - __bc = bucket_count(); - __chash = std::__constrain_hash(__hash, __bc); - } - // insert_after __bucket_list_[__chash], or __first_node if bucket is null - __next_pointer __pn = __bucket_list_[__chash]; - if (__pn == nullptr) - { - __pn = __p1_.first().__ptr(); - __h->__next_ = __pn->__next_; - __pn->__next_ = __h.get()->__ptr(); - // fix up __bucket_list_ - __bucket_list_[__chash] = __pn; - if (__h->__next_ != nullptr) - __bucket_list_[std::__constrain_hash(__h->__next_->__hash(), __bc)] - = __h.get()->__ptr(); - } - else - { - __h->__next_ = __pn->__next_; - __pn->__next_ = static_cast<__next_pointer>(__h.get()); - } - __nd = static_cast<__next_pointer>(__h.release()); - // increment size - ++size(); - __inserted = true; + } + { + __node_holder __h = __construct_node_hash(__hash, std::forward<_Args>(__args)...); + if (size() + 1 > __bc * max_load_factor() || __bc == 0) { + __rehash_unique(std::max<size_type>( + 2 * __bc + !std::__is_hash_power2(__bc), size_type(std::ceil(float(size() + 1) / max_load_factor())))); + __bc = bucket_count(); + __chash = std::__constrain_hash(__hash, __bc); } + // insert_after __bucket_list_[__chash], or __first_node if bucket is null + __next_pointer __pn = __bucket_list_[__chash]; + if (__pn == nullptr) { + __pn = __p1_.first().__ptr(); + __h->__next_ = __pn->__next_; + __pn->__next_ = __h.get()->__ptr(); + // fix up __bucket_list_ + __bucket_list_[__chash] = __pn; + if (__h->__next_ != nullptr) + __bucket_list_[std::__constrain_hash(__h->__next_->__hash(), __bc)] = __h.get()->__ptr(); + } else { + __h->__next_ = __pn->__next_; + __pn->__next_ = static_cast<__next_pointer>(__h.get()); + } + __nd = static_cast<__next_pointer>(__h.release()); + // increment size + ++size(); + __inserted = true; + } __done: - return pair<iterator, bool>(iterator(__nd), __inserted); + return pair<iterator, bool>(iterator(__nd), __inserted); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class... _Args> pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator, bool> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_unique_impl(_Args&&... __args) -{ - __node_holder __h = __construct_node(std::forward<_Args>(__args)...); - pair<iterator, bool> __r = __node_insert_unique(__h.get()); - if (__r.second) - __h.release(); - return __r; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_unique_impl(_Args&&... __args) { + __node_holder __h = __construct_node(std::forward<_Args>(__args)...); + pair<iterator, bool> __r = __node_insert_unique(__h.get()); + if (__r.second) + __h.release(); + return __r; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class... _Args> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_multi(_Args&&... __args) -{ - __node_holder __h = __construct_node(std::forward<_Args>(__args)...); - iterator __r = __node_insert_multi(__h.get()); - __h.release(); - return __r; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_multi(_Args&&... __args) { + __node_holder __h = __construct_node(std::forward<_Args>(__args)...); + iterator __r = __node_insert_multi(__h.get()); + __h.release(); + return __r; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class... _Args> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_hint_multi( - const_iterator __p, _Args&&... __args) -{ - __node_holder __h = __construct_node(std::forward<_Args>(__args)...); - iterator __r = __node_insert_multi(__p, __h.get()); - __h.release(); - return __r; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_hint_multi(const_iterator __p, _Args&&... __args) { + __node_holder __h = __construct_node(std::forward<_Args>(__args)...); + iterator __r = __node_insert_multi(__p, __h.get()); + __h.release(); + return __r; } #if _LIBCPP_STD_VER >= 17 template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _NodeHandle, class _InsertReturnType> -_LIBCPP_HIDE_FROM_ABI -_InsertReturnType -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_unique( - _NodeHandle&& __nh) -{ - if (__nh.empty()) - return _InsertReturnType{end(), false, _NodeHandle()}; - pair<iterator, bool> __result = __node_insert_unique(__nh.__ptr_); - if (__result.second) - __nh.__release_ptr(); - return _InsertReturnType{__result.first, __result.second, std::move(__nh)}; +_LIBCPP_HIDE_FROM_ABI _InsertReturnType +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_unique(_NodeHandle&& __nh) { + if (__nh.empty()) + return _InsertReturnType{end(), false, _NodeHandle()}; + pair<iterator, bool> __result = __node_insert_unique(__nh.__ptr_); + if (__result.second) + __nh.__release_ptr(); + return _InsertReturnType{__result.first, __result.second, std::move(__nh)}; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _NodeHandle> -_LIBCPP_HIDE_FROM_ABI -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_unique( - const_iterator, _NodeHandle&& __nh) -{ - if (__nh.empty()) - return end(); - pair<iterator, bool> __result = __node_insert_unique(__nh.__ptr_); - if (__result.second) - __nh.__release_ptr(); - return __result.first; +_LIBCPP_HIDE_FROM_ABI typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_unique(const_iterator, _NodeHandle&& __nh) { + if (__nh.empty()) + return end(); + pair<iterator, bool> __result = __node_insert_unique(__nh.__ptr_); + if (__result.second) + __nh.__release_ptr(); + return __result.first; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _NodeHandle> -_LIBCPP_HIDE_FROM_ABI -_NodeHandle -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_extract( - key_type const& __key) -{ - iterator __i = find(__key); - if (__i == end()) - return _NodeHandle(); - return __node_handle_extract<_NodeHandle>(__i); +_LIBCPP_HIDE_FROM_ABI _NodeHandle +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_extract(key_type const& __key) { + iterator __i = find(__key); + if (__i == end()) + return _NodeHandle(); + return __node_handle_extract<_NodeHandle>(__i); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _NodeHandle> -_LIBCPP_HIDE_FROM_ABI -_NodeHandle -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_extract( - const_iterator __p) -{ - allocator_type __alloc(__node_alloc()); - return _NodeHandle(remove(__p).release(), __alloc); +_LIBCPP_HIDE_FROM_ABI _NodeHandle __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_extract(const_iterator __p) { + allocator_type __alloc(__node_alloc()); + return _NodeHandle(remove(__p).release(), __alloc); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Table> -_LIBCPP_HIDE_FROM_ABI -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_merge_unique( - _Table& __source) -{ - static_assert(is_same<__node, typename _Table::__node>::value, ""); - - for (typename _Table::iterator __it = __source.begin(); - __it != __source.end();) - { - __node_pointer __src_ptr = __it.__node_->__upcast(); - size_t __hash = hash_function()(__src_ptr->__get_value()); - __next_pointer __existing_node = - __node_insert_unique_prepare(__hash, __src_ptr->__get_value()); - auto __prev_iter = __it++; - if (__existing_node == nullptr) - { - (void)__source.remove(__prev_iter).release(); - __src_ptr->__hash_ = __hash; - __node_insert_unique_perform(__src_ptr); - } +_LIBCPP_HIDE_FROM_ABI void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_merge_unique(_Table& __source) { + static_assert(is_same<__node, typename _Table::__node>::value, ""); + + for (typename _Table::iterator __it = __source.begin(); __it != __source.end();) { + __node_pointer __src_ptr = __it.__node_->__upcast(); + size_t __hash = hash_function()(__src_ptr->__get_value()); + __next_pointer __existing_node = __node_insert_unique_prepare(__hash, __src_ptr->__get_value()); + auto __prev_iter = __it++; + if (__existing_node == nullptr) { + (void)__source.remove(__prev_iter).release(); + __src_ptr->__hash_ = __hash; + __node_insert_unique_perform(__src_ptr); } + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _NodeHandle> -_LIBCPP_HIDE_FROM_ABI -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_multi( - _NodeHandle&& __nh) -{ - if (__nh.empty()) - return end(); - iterator __result = __node_insert_multi(__nh.__ptr_); - __nh.__release_ptr(); - return __result; +_LIBCPP_HIDE_FROM_ABI typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_multi(_NodeHandle&& __nh) { + if (__nh.empty()) + return end(); + iterator __result = __node_insert_multi(__nh.__ptr_); + __nh.__release_ptr(); + return __result; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _NodeHandle> -_LIBCPP_HIDE_FROM_ABI -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_multi( - const_iterator __hint, _NodeHandle&& __nh) -{ - if (__nh.empty()) - return end(); - iterator __result = __node_insert_multi(__hint, __nh.__ptr_); - __nh.__release_ptr(); - return __result; +_LIBCPP_HIDE_FROM_ABI typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_insert_multi(const_iterator __hint, _NodeHandle&& __nh) { + if (__nh.empty()) + return end(); + iterator __result = __node_insert_multi(__hint, __nh.__ptr_); + __nh.__release_ptr(); + return __result; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Table> -_LIBCPP_HIDE_FROM_ABI -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_merge_multi( - _Table& __source) -{ - static_assert(is_same<typename _Table::__node, __node>::value, ""); - - for (typename _Table::iterator __it = __source.begin(); - __it != __source.end();) - { - __node_pointer __src_ptr = __it.__node_->__upcast(); - size_t __src_hash = hash_function()(__src_ptr->__get_value()); - __next_pointer __pn = - __node_insert_multi_prepare(__src_hash, __src_ptr->__get_value()); - (void)__source.remove(__it++).release(); - __src_ptr->__hash_ = __src_hash; - __node_insert_multi_perform(__src_ptr, __pn); - } +_LIBCPP_HIDE_FROM_ABI void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_handle_merge_multi(_Table& __source) { + static_assert(is_same<typename _Table::__node, __node>::value, ""); + + for (typename _Table::iterator __it = __source.begin(); __it != __source.end();) { + __node_pointer __src_ptr = __it.__node_->__upcast(); + size_t __src_hash = hash_function()(__src_ptr->__get_value()); + __next_pointer __pn = __node_insert_multi_prepare(__src_hash, __src_ptr->__get_value()); + (void)__source.remove(__it++).release(); + __src_ptr->__hash_ = __src_hash; + __node_insert_multi_perform(__src_ptr, __pn); + } } #endif // _LIBCPP_STD_VER >= 17 template <class _Tp, class _Hash, class _Equal, class _Alloc> template <bool _UniqueKeys> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__rehash(size_type __n) -_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK -{ - if (__n == 1) - __n = 2; - else if (__n & (__n - 1)) - __n = std::__next_prime(__n); - size_type __bc = bucket_count(); - if (__n > __bc) - __do_rehash<_UniqueKeys>(__n); - else if (__n < __bc) - { - __n = std::max<size_type> - ( - __n, - std::__is_hash_power2(__bc) ? std::__next_hash_pow2(size_t(std::ceil(float(size()) / max_load_factor()))) : - std::__next_prime(size_t(std::ceil(float(size()) / max_load_factor()))) - ); - if (__n < __bc) - __do_rehash<_UniqueKeys>(__n); - } +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__rehash(size_type __n) _LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK { + if (__n == 1) + __n = 2; + else if (__n & (__n - 1)) + __n = std::__next_prime(__n); + size_type __bc = bucket_count(); + if (__n > __bc) + __do_rehash<_UniqueKeys>(__n); + else if (__n < __bc) { + __n = std::max<size_type>( + __n, + std::__is_hash_power2(__bc) ? std::__next_hash_pow2(size_t(std::ceil(float(size()) / max_load_factor()))) + : std::__next_prime(size_t(std::ceil(float(size()) / max_load_factor())))); + if (__n < __bc) + __do_rehash<_UniqueKeys>(__n); + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <bool _UniqueKeys> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__do_rehash(size_type __nbc) -{ - __pointer_allocator& __npa = __bucket_list_.get_deleter().__alloc(); - __bucket_list_.reset(__nbc > 0 ? - __pointer_alloc_traits::allocate(__npa, __nbc) : nullptr); - __bucket_list_.get_deleter().size() = __nbc; - if (__nbc > 0) - { - for (size_type __i = 0; __i < __nbc; ++__i) - __bucket_list_[__i] = nullptr; - __next_pointer __pp = __p1_.first().__ptr(); - __next_pointer __cp = __pp->__next_; - if (__cp != nullptr) - { - size_type __chash = std::__constrain_hash(__cp->__hash(), __nbc); +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::__do_rehash(size_type __nbc) { + __pointer_allocator& __npa = __bucket_list_.get_deleter().__alloc(); + __bucket_list_.reset(__nbc > 0 ? __pointer_alloc_traits::allocate(__npa, __nbc) : nullptr); + __bucket_list_.get_deleter().size() = __nbc; + if (__nbc > 0) { + for (size_type __i = 0; __i < __nbc; ++__i) + __bucket_list_[__i] = nullptr; + __next_pointer __pp = __p1_.first().__ptr(); + __next_pointer __cp = __pp->__next_; + if (__cp != nullptr) { + size_type __chash = std::__constrain_hash(__cp->__hash(), __nbc); + __bucket_list_[__chash] = __pp; + size_type __phash = __chash; + for (__pp = __cp, void(), __cp = __cp->__next_; __cp != nullptr; __cp = __pp->__next_) { + __chash = std::__constrain_hash(__cp->__hash(), __nbc); + if (__chash == __phash) + __pp = __cp; + else { + if (__bucket_list_[__chash] == nullptr) { __bucket_list_[__chash] = __pp; - size_type __phash = __chash; - for (__pp = __cp, void(), __cp = __cp->__next_; __cp != nullptr; - __cp = __pp->__next_) - { - __chash = std::__constrain_hash(__cp->__hash(), __nbc); - if (__chash == __phash) - __pp = __cp; - else - { - if (__bucket_list_[__chash] == nullptr) - { - __bucket_list_[__chash] = __pp; - __pp = __cp; - __phash = __chash; - } - else - { - __next_pointer __np = __cp; - if _LIBCPP_CONSTEXPR_SINCE_CXX17 (!_UniqueKeys) - { - for (; __np->__next_ != nullptr && - key_eq()(__cp->__upcast()->__get_value(), - __np->__next_->__upcast()->__get_value()); - __np = __np->__next_) - ; - } - __pp->__next_ = __np->__next_; - __np->__next_ = __bucket_list_[__chash]->__next_; - __bucket_list_[__chash]->__next_ = __cp; - - } - } + __pp = __cp; + __phash = __chash; + } else { + __next_pointer __np = __cp; + if _LIBCPP_CONSTEXPR_SINCE_CXX17 (!_UniqueKeys) { + for (; __np->__next_ != nullptr && + key_eq()(__cp->__upcast()->__get_value(), __np->__next_->__upcast()->__get_value()); + __np = __np->__next_) + ; } + __pp->__next_ = __np->__next_; + __np->__next_ = __bucket_list_[__chash]->__next_; + __bucket_list_[__chash]->__next_ = __cp; + } } + } } + } } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::find(const _Key& __k) -{ - size_t __hash = hash_function()(__k); - size_type __bc = bucket_count(); - if (__bc != 0) - { - size_t __chash = std::__constrain_hash(__hash, __bc); - __next_pointer __nd = __bucket_list_[__chash]; - if (__nd != nullptr) - { - for (__nd = __nd->__next_; __nd != nullptr && - (__nd->__hash() == __hash - || std::__constrain_hash(__nd->__hash(), __bc) == __chash); - __nd = __nd->__next_) - { - if ((__nd->__hash() == __hash) - && key_eq()(__nd->__upcast()->__get_value(), __k)) - return iterator(__nd); - } - } +__hash_table<_Tp, _Hash, _Equal, _Alloc>::find(const _Key& __k) { + size_t __hash = hash_function()(__k); + size_type __bc = bucket_count(); + if (__bc != 0) { + size_t __chash = std::__constrain_hash(__hash, __bc); + __next_pointer __nd = __bucket_list_[__chash]; + if (__nd != nullptr) { + for (__nd = __nd->__next_; + __nd != nullptr && (__nd->__hash() == __hash || std::__constrain_hash(__nd->__hash(), __bc) == __chash); + __nd = __nd->__next_) { + if ((__nd->__hash() == __hash) && key_eq()(__nd->__upcast()->__get_value(), __k)) + return iterator(__nd); + } } - return end(); + } + return end(); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::find(const _Key& __k) const -{ - size_t __hash = hash_function()(__k); - size_type __bc = bucket_count(); - if (__bc != 0) - { - size_t __chash = std::__constrain_hash(__hash, __bc); - __next_pointer __nd = __bucket_list_[__chash]; - if (__nd != nullptr) - { - for (__nd = __nd->__next_; __nd != nullptr && - (__hash == __nd->__hash() - || std::__constrain_hash(__nd->__hash(), __bc) == __chash); - __nd = __nd->__next_) - { - if ((__nd->__hash() == __hash) - && key_eq()(__nd->__upcast()->__get_value(), __k)) - return const_iterator(__nd); - } - } - +__hash_table<_Tp, _Hash, _Equal, _Alloc>::find(const _Key& __k) const { + size_t __hash = hash_function()(__k); + size_type __bc = bucket_count(); + if (__bc != 0) { + size_t __chash = std::__constrain_hash(__hash, __bc); + __next_pointer __nd = __bucket_list_[__chash]; + if (__nd != nullptr) { + for (__nd = __nd->__next_; + __nd != nullptr && (__hash == __nd->__hash() || std::__constrain_hash(__nd->__hash(), __bc) == __chash); + __nd = __nd->__next_) { + if ((__nd->__hash() == __hash) && key_eq()(__nd->__upcast()->__get_value(), __k)) + return const_iterator(__nd); + } } - return end(); + } + return end(); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -template <class ..._Args> +template <class... _Args> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_holder -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__construct_node(_Args&& ...__args) -{ - static_assert(!__is_hash_value_type<_Args...>::value, - "Construct cannot be called with a hash value type"); - __node_allocator& __na = __node_alloc(); - __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na)); - - // Begin the lifetime of the node itself. Note that this doesn't begin the lifetime of the value - // held inside the node, since we need to use the allocator's construct() method for that. - // - // We don't use the allocator's construct() method to construct the node itself since the - // Cpp17FooInsertable named requirements don't require the allocator's construct() method - // to work on anything other than the value_type. - std::__construct_at(std::addressof(*__h), /* next = */nullptr, /* hash = */0); - - // Now construct the value_type using the allocator's construct() method. - __node_traits::construct(__na, _NodeTypes::__get_ptr(__h->__get_value()), std::forward<_Args>(__args)...); - __h.get_deleter().__value_constructed = true; - - __h->__hash_ = hash_function()(__h->__get_value()); - return __h; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__construct_node(_Args&&... __args) { + static_assert(!__is_hash_value_type<_Args...>::value, "Construct cannot be called with a hash value type"); + __node_allocator& __na = __node_alloc(); + __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na)); + + // Begin the lifetime of the node itself. Note that this doesn't begin the lifetime of the value + // held inside the node, since we need to use the allocator's construct() method for that. + // + // We don't use the allocator's construct() method to construct the node itself since the + // Cpp17FooInsertable named requirements don't require the allocator's construct() method + // to work on anything other than the value_type. + std::__construct_at(std::addressof(*__h), /* next = */ nullptr, /* hash = */ 0); + + // Now construct the value_type using the allocator's construct() method. + __node_traits::construct(__na, _NodeTypes::__get_ptr(__h->__get_value()), std::forward<_Args>(__args)...); + __h.get_deleter().__value_constructed = true; + + __h->__hash_ = hash_function()(__h->__get_value()); + return __h; } template <class _Tp, class _Hash, class _Equal, class _Alloc> -template <class _First, class ..._Rest> +template <class _First, class... _Rest> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_holder -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__construct_node_hash( - size_t __hash, _First&& __f, _Rest&& ...__rest) -{ - static_assert(!__is_hash_value_type<_First, _Rest...>::value, - "Construct cannot be called with a hash value type"); - __node_allocator& __na = __node_alloc(); - __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na)); - std::__construct_at(std::addressof(*__h), /* next = */nullptr, /* hash = */__hash); - __node_traits::construct(__na, _NodeTypes::__get_ptr(__h->__get_value()), - std::forward<_First>(__f), - std::forward<_Rest>(__rest)...); - __h.get_deleter().__value_constructed = true; - return __h; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__construct_node_hash(size_t __hash, _First&& __f, _Rest&&... __rest) { + static_assert(!__is_hash_value_type<_First, _Rest...>::value, "Construct cannot be called with a hash value type"); + __node_allocator& __na = __node_alloc(); + __node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na)); + std::__construct_at(std::addressof(*__h), /* next = */ nullptr, /* hash = */ __hash); + __node_traits::construct( + __na, _NodeTypes::__get_ptr(__h->__get_value()), std::forward<_First>(__f), std::forward<_Rest>(__rest)...); + __h.get_deleter().__value_constructed = true; + return __h; } template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::erase(const_iterator __p) -{ - __next_pointer __np = __p.__node_; - _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__p != end(), - "unordered container::erase(iterator) called with a non-dereferenceable iterator"); - iterator __r(__np); - ++__r; - remove(__p); - return __r; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::erase(const_iterator __p) { + __next_pointer __np = __p.__node_; + _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS( + __p != end(), "unordered container::erase(iterator) called with a non-dereferenceable iterator"); + iterator __r(__np); + ++__r; + remove(__p); + return __r; } template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator -__hash_table<_Tp, _Hash, _Equal, _Alloc>::erase(const_iterator __first, - const_iterator __last) -{ - for (const_iterator __p = __first; __first != __last; __p = __first) - { - ++__first; - erase(__p); - } - __next_pointer __np = __last.__node_; - return iterator (__np); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::erase(const_iterator __first, const_iterator __last) { + for (const_iterator __p = __first; __first != __last; __p = __first) { + ++__first; + erase(__p); + } + __next_pointer __np = __last.__node_; + return iterator(__np); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::size_type -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__erase_unique(const _Key& __k) -{ - iterator __i = find(__k); - if (__i == end()) - return 0; - erase(__i); - return 1; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__erase_unique(const _Key& __k) { + iterator __i = find(__k); + if (__i == end()) + return 0; + erase(__i); + return 1; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::size_type -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__erase_multi(const _Key& __k) -{ - size_type __r = 0; - iterator __i = find(__k); - if (__i != end()) - { - iterator __e = end(); - do - { - erase(__i++); - ++__r; - } while (__i != __e && key_eq()(*__i, __k)); - } - return __r; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__erase_multi(const _Key& __k) { + size_type __r = 0; + iterator __i = find(__k); + if (__i != end()) { + iterator __e = end(); + do { + erase(__i++); + ++__r; + } while (__i != __e && key_eq()(*__i, __k)); + } + return __r; } template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_holder -__hash_table<_Tp, _Hash, _Equal, _Alloc>::remove(const_iterator __p) _NOEXCEPT -{ - // current node - __next_pointer __cn = __p.__node_; - size_type __bc = bucket_count(); - size_t __chash = std::__constrain_hash(__cn->__hash(), __bc); - // find previous node - __next_pointer __pn = __bucket_list_[__chash]; - for (; __pn->__next_ != __cn; __pn = __pn->__next_) - ; - // Fix up __bucket_list_ - // if __pn is not in same bucket (before begin is not in same bucket) && - // if __cn->__next_ is not in same bucket (nullptr is not in same bucket) - if (__pn == __p1_.first().__ptr() - || std::__constrain_hash(__pn->__hash(), __bc) != __chash) - { - if (__cn->__next_ == nullptr - || std::__constrain_hash(__cn->__next_->__hash(), __bc) != __chash) - __bucket_list_[__chash] = nullptr; - } - // if __cn->__next_ is not in same bucket (nullptr is in same bucket) - if (__cn->__next_ != nullptr) - { - size_t __nhash = std::__constrain_hash(__cn->__next_->__hash(), __bc); - if (__nhash != __chash) - __bucket_list_[__nhash] = __pn; - } - // remove __cn - __pn->__next_ = __cn->__next_; - __cn->__next_ = nullptr; - --size(); - return __node_holder(__cn->__upcast(), _Dp(__node_alloc(), true)); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::remove(const_iterator __p) _NOEXCEPT { + // current node + __next_pointer __cn = __p.__node_; + size_type __bc = bucket_count(); + size_t __chash = std::__constrain_hash(__cn->__hash(), __bc); + // find previous node + __next_pointer __pn = __bucket_list_[__chash]; + for (; __pn->__next_ != __cn; __pn = __pn->__next_) + ; + // Fix up __bucket_list_ + // if __pn is not in same bucket (before begin is not in same bucket) && + // if __cn->__next_ is not in same bucket (nullptr is not in same bucket) + if (__pn == __p1_.first().__ptr() || std::__constrain_hash(__pn->__hash(), __bc) != __chash) { + if (__cn->__next_ == nullptr || std::__constrain_hash(__cn->__next_->__hash(), __bc) != __chash) + __bucket_list_[__chash] = nullptr; + } + // if __cn->__next_ is not in same bucket (nullptr is in same bucket) + if (__cn->__next_ != nullptr) { + size_t __nhash = std::__constrain_hash(__cn->__next_->__hash(), __bc); + if (__nhash != __chash) + __bucket_list_[__nhash] = __pn; + } + // remove __cn + __pn->__next_ = __cn->__next_; + __cn->__next_ = nullptr; + --size(); + return __node_holder(__cn->__upcast(), _Dp(__node_alloc(), true)); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> -inline -typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::size_type -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__count_unique(const _Key& __k) const -{ - return static_cast<size_type>(find(__k) != end()); +inline typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::size_type +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__count_unique(const _Key& __k) const { + return static_cast<size_type>(find(__k) != end()); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::size_type -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__count_multi(const _Key& __k) const -{ - size_type __r = 0; - const_iterator __i = find(__k); - if (__i != end()) - { - const_iterator __e = end(); - do - { - ++__i; - ++__r; - } while (__i != __e && key_eq()(*__i, __k)); - } - return __r; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__count_multi(const _Key& __k) const { + size_type __r = 0; + const_iterator __i = find(__k); + if (__i != end()) { + const_iterator __e = end(); + do { + ++__i; + ++__r; + } while (__i != __e && key_eq()(*__i, __k)); + } + return __r; } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator, typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_unique( - const _Key& __k) -{ - iterator __i = find(__k); - iterator __j = __i; - if (__i != end()) - ++__j; - return pair<iterator, iterator>(__i, __j); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_unique(const _Key& __k) { + iterator __i = find(__k); + iterator __j = __i; + if (__i != end()) + ++__j; + return pair<iterator, iterator>(__i, __j); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator, typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_unique( - const _Key& __k) const -{ - const_iterator __i = find(__k); - const_iterator __j = __i; - if (__i != end()) - ++__j; - return pair<const_iterator, const_iterator>(__i, __j); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_unique(const _Key& __k) const { + const_iterator __i = find(__k); + const_iterator __j = __i; + if (__i != end()) + ++__j; + return pair<const_iterator, const_iterator>(__i, __j); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator, typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_multi( - const _Key& __k) -{ - iterator __i = find(__k); - iterator __j = __i; - if (__i != end()) - { - iterator __e = end(); - do - { - ++__j; - } while (__j != __e && key_eq()(*__j, __k)); - } - return pair<iterator, iterator>(__i, __j); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_multi(const _Key& __k) { + iterator __i = find(__k); + iterator __j = __i; + if (__i != end()) { + iterator __e = end(); + do { + ++__j; + } while (__j != __e && key_eq()(*__j, __k)); + } + return pair<iterator, iterator>(__i, __j); } template <class _Tp, class _Hash, class _Equal, class _Alloc> template <class _Key> pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator, typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator> -__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_multi( - const _Key& __k) const -{ - const_iterator __i = find(__k); - const_iterator __j = __i; - if (__i != end()) - { - const_iterator __e = end(); - do - { - ++__j; - } while (__j != __e && key_eq()(*__j, __k)); - } - return pair<const_iterator, const_iterator>(__i, __j); +__hash_table<_Tp, _Hash, _Equal, _Alloc>::__equal_range_multi(const _Key& __k) const { + const_iterator __i = find(__k); + const_iterator __j = __i; + if (__i != end()) { + const_iterator __e = end(); + do { + ++__j; + } while (__j != __e && key_eq()(*__j, __k)); + } + return pair<const_iterator, const_iterator>(__i, __j); } template <class _Tp, class _Hash, class _Equal, class _Alloc> -void -__hash_table<_Tp, _Hash, _Equal, _Alloc>::swap(__hash_table& __u) +void __hash_table<_Tp, _Hash, _Equal, _Alloc>::swap(__hash_table& __u) #if _LIBCPP_STD_VER <= 11 - _NOEXCEPT_( - __is_nothrow_swappable<hasher>::value && __is_nothrow_swappable<key_equal>::value - && (!allocator_traits<__pointer_allocator>::propagate_on_container_swap::value - || __is_nothrow_swappable<__pointer_allocator>::value) - && (!__node_traits::propagate_on_container_swap::value - || __is_nothrow_swappable<__node_allocator>::value) - ) + _NOEXCEPT_(__is_nothrow_swappable<hasher>::value&& __is_nothrow_swappable<key_equal>::value && + (!allocator_traits<__pointer_allocator>::propagate_on_container_swap::value || + __is_nothrow_swappable<__pointer_allocator>::value) && + (!__node_traits::propagate_on_container_swap::value || __is_nothrow_swappable<__node_allocator>::value)) #else - _NOEXCEPT_(__is_nothrow_swappable<hasher>::value && __is_nothrow_swappable<key_equal>::value) + _NOEXCEPT_(__is_nothrow_swappable<hasher>::value&& __is_nothrow_swappable<key_equal>::value) #endif { - _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR(__node_traits::propagate_on_container_swap::value || - this->__node_alloc() == __u.__node_alloc(), - "unordered container::swap: Either propagate_on_container_swap " - "must be true or the allocators must compare equal"); - { + _LIBCPP_ASSERT_COMPATIBLE_ALLOCATOR( + __node_traits::propagate_on_container_swap::value || this->__node_alloc() == __u.__node_alloc(), + "unordered container::swap: Either propagate_on_container_swap " + "must be true or the allocators must compare equal"); + { __node_pointer_pointer __npp = __bucket_list_.release(); __bucket_list_.reset(__u.__bucket_list_.release()); __u.__bucket_list_.reset(__npp); - } - std::swap(__bucket_list_.get_deleter().size(), __u.__bucket_list_.get_deleter().size()); - std::__swap_allocator(__bucket_list_.get_deleter().__alloc(), - __u.__bucket_list_.get_deleter().__alloc()); - std::__swap_allocator(__node_alloc(), __u.__node_alloc()); - std::swap(__p1_.first().__next_, __u.__p1_.first().__next_); - __p2_.swap(__u.__p2_); - __p3_.swap(__u.__p3_); - if (size() > 0) - __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = - __p1_.first().__ptr(); - if (__u.size() > 0) - __u.__bucket_list_[std::__constrain_hash(__u.__p1_.first().__next_->__hash(), __u.bucket_count())] = - __u.__p1_.first().__ptr(); + } + std::swap(__bucket_list_.get_deleter().size(), __u.__bucket_list_.get_deleter().size()); + std::__swap_allocator(__bucket_list_.get_deleter().__alloc(), __u.__bucket_list_.get_deleter().__alloc()); + std::__swap_allocator(__node_alloc(), __u.__node_alloc()); + std::swap(__p1_.first().__next_, __u.__p1_.first().__next_); + __p2_.swap(__u.__p2_); + __p3_.swap(__u.__p3_); + if (size() > 0) + __bucket_list_[std::__constrain_hash(__p1_.first().__next_->__hash(), bucket_count())] = __p1_.first().__ptr(); + if (__u.size() > 0) + __u.__bucket_list_[std::__constrain_hash(__u.__p1_.first().__next_->__hash(), __u.bucket_count())] = + __u.__p1_.first().__ptr(); } template <class _Tp, class _Hash, class _Equal, class _Alloc> typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::size_type -__hash_table<_Tp, _Hash, _Equal, _Alloc>::bucket_size(size_type __n) const -{ - _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS(__n < bucket_count(), - "unordered container::bucket_size(n) called with n >= bucket_count()"); - __next_pointer __np = __bucket_list_[__n]; - size_type __bc = bucket_count(); - size_type __r = 0; - if (__np != nullptr) - { - for (__np = __np->__next_; __np != nullptr && - std::__constrain_hash(__np->__hash(), __bc) == __n; - __np = __np->__next_, (void) ++__r) - ; - } - return __r; +__hash_table<_Tp, _Hash, _Equal, _Alloc>::bucket_size(size_type __n) const { + _LIBCPP_ASSERT_VALID_ELEMENT_ACCESS( + __n < bucket_count(), "unordered container::bucket_size(n) called with n >= bucket_count()"); + __next_pointer __np = __bucket_list_[__n]; + size_type __bc = bucket_count(); + size_type __r = 0; + if (__np != nullptr) { + for (__np = __np->__next_; __np != nullptr && std::__constrain_hash(__np->__hash(), __bc) == __n; + __np = __np->__next_, (void)++__r) + ; + } + return __r; } template <class _Tp, class _Hash, class _Equal, class _Alloc> -inline _LIBCPP_HIDE_FROM_ABI -void -swap(__hash_table<_Tp, _Hash, _Equal, _Alloc>& __x, - __hash_table<_Tp, _Hash, _Equal, _Alloc>& __y) - _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) -{ - __x.swap(__y); +inline _LIBCPP_HIDE_FROM_ABI void +swap(__hash_table<_Tp, _Hash, _Equal, _Alloc>& __x, __hash_table<_Tp, _Hash, _Equal, _Alloc>& __y) + _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) { + __x.swap(__y); } _LIBCPP_END_NAMESPACE_STD |