forked from OSchip/llvm-project
2588 lines
88 KiB
C++
2588 lines
88 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP__HASH_TABLE
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#define _LIBCPP__HASH_TABLE
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#include <__config>
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#include <initializer_list>
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#include <memory>
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#include <iterator>
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#include <algorithm>
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#include <cmath>
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#include <utility>
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#include <__undef_min_max>
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#include <__undef___deallocate>
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#include <__debug>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#ifndef _LIBCPP_CXX03_LANG
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template <class _Key, class _Tp>
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union __hash_value_type;
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#else
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template <class _Key, class _Tp>
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struct __hash_value_type;
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#endif
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#ifndef _LIBCPP_CXX03_LANG
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template <class _Tp>
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struct __is_hash_value_type_imp : false_type {};
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template <class _Key, class _Value>
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struct __is_hash_value_type_imp<__hash_value_type<_Key, _Value>> : true_type {};
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template <class ..._Args>
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struct __is_hash_value_type : false_type {};
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template <class _One>
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struct __is_hash_value_type<_One> : __is_hash_value_type_imp<typename __uncvref<_One>::type> {};
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#endif
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_LIBCPP_FUNC_VIS
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size_t __next_prime(size_t __n);
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template <class _NodePtr>
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struct __hash_node_base
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{
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typedef __hash_node_base __first_node;
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_NodePtr __next_;
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_LIBCPP_INLINE_VISIBILITY __hash_node_base() _NOEXCEPT : __next_(nullptr) {}
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};
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template <class _Tp, class _VoidPtr>
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struct __hash_node
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: public __hash_node_base
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<
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typename __rebind_pointer<_VoidPtr, __hash_node<_Tp, _VoidPtr> >::type
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>
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{
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typedef _Tp __node_value_type;
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size_t __hash_;
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__node_value_type __value_;
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};
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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__is_hash_power2(size_t __bc)
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{
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return __bc > 2 && !(__bc & (__bc - 1));
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}
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inline _LIBCPP_INLINE_VISIBILITY
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size_t
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__constrain_hash(size_t __h, size_t __bc)
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{
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return !(__bc & (__bc - 1)) ? __h & (__bc - 1) : __h % __bc;
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}
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inline _LIBCPP_INLINE_VISIBILITY
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size_t
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__next_hash_pow2(size_t __n)
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{
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return size_t(1) << (std::numeric_limits<size_t>::digits - __clz(__n-1));
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}
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template <class _Tp, class _Hash, class _Equal, class _Alloc> class __hash_table;
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template <class _NodePtr> class _LIBCPP_TYPE_VIS_ONLY __hash_iterator;
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template <class _ConstNodePtr> class _LIBCPP_TYPE_VIS_ONLY __hash_const_iterator;
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template <class _NodePtr> class _LIBCPP_TYPE_VIS_ONLY __hash_local_iterator;
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template <class _ConstNodePtr> class _LIBCPP_TYPE_VIS_ONLY __hash_const_local_iterator;
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template <class _HashIterator> class _LIBCPP_TYPE_VIS_ONLY __hash_map_iterator;
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template <class _HashIterator> class _LIBCPP_TYPE_VIS_ONLY __hash_map_const_iterator;
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template <class _Tp>
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struct __hash_key_value_types {
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static_assert(!is_reference<_Tp>::value && !is_const<_Tp>::value, "");
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typedef _Tp key_type;
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typedef _Tp __node_value_type;
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typedef _Tp __container_value_type;
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static const bool __is_map = false;
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_LIBCPP_INLINE_VISIBILITY
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static key_type const& __get_key(_Tp const& __v) {
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return __v;
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}
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_LIBCPP_INLINE_VISIBILITY
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static __container_value_type const& __get_value(__node_value_type const& __v) {
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return __v;
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}
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_LIBCPP_INLINE_VISIBILITY
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static __container_value_type* __get_ptr(__node_value_type& __n) {
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return _VSTD::addressof(__n);
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}
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#ifndef _LIBCPP_CXX03_LANG
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_LIBCPP_INLINE_VISIBILITY
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static __container_value_type&& __move(__node_value_type& __v) {
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return _VSTD::move(__v);
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}
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#endif
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};
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template <class _Key, class _Tp>
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struct __hash_key_value_types<__hash_value_type<_Key, _Tp> > {
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typedef _Key key_type;
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typedef _Tp mapped_type;
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typedef __hash_value_type<_Key, _Tp> __node_value_type;
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typedef pair<const _Key, _Tp> __container_value_type;
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typedef pair<_Key, _Tp> __nc_value_type;
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typedef __container_value_type __map_value_type;
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static const bool __is_map = true;
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_LIBCPP_INLINE_VISIBILITY
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static key_type const& __get_key(__container_value_type const& __v) {
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return __v.first;
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}
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template <class _Up>
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_LIBCPP_INLINE_VISIBILITY
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static typename enable_if<__is_same_uncvref<_Up, __node_value_type>::value,
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__container_value_type const&>::type
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__get_value(_Up& __t) {
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return __t.__cc;
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}
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template <class _Up>
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_LIBCPP_INLINE_VISIBILITY
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static typename enable_if<__is_same_uncvref<_Up, __container_value_type>::value,
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__container_value_type const&>::type
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__get_value(_Up& __t) {
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return __t;
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}
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_LIBCPP_INLINE_VISIBILITY
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static __container_value_type* __get_ptr(__node_value_type& __n) {
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return _VSTD::addressof(__n.__cc);
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}
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#ifndef _LIBCPP_CXX03_LANG
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_LIBCPP_INLINE_VISIBILITY
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static __nc_value_type&& __move(__node_value_type& __v) {
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return _VSTD::move(__v.__nc);
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}
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#endif
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};
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template <class _Tp, class _AllocPtr, class _KVTypes = __hash_key_value_types<_Tp>,
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bool = _KVTypes::__is_map>
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struct __hash_map_pointer_types {};
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template <class _Tp, class _AllocPtr, class _KVTypes>
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struct __hash_map_pointer_types<_Tp, _AllocPtr, _KVTypes, true> {
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typedef typename _KVTypes::__map_value_type _Mv;
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typedef typename __rebind_pointer<_AllocPtr, _Mv>::type
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__map_value_type_pointer;
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typedef typename __rebind_pointer<_AllocPtr, const _Mv>::type
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__const_map_value_type_pointer;
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};
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template <class _NodePtr, class _NodeT = typename pointer_traits<_NodePtr>::element_type>
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struct __hash_node_types;
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template <class _NodePtr, class _Tp, class _VoidPtr>
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struct __hash_node_types<_NodePtr, __hash_node<_Tp, _VoidPtr> >
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: public __hash_key_value_types<_Tp>, __hash_map_pointer_types<_Tp, _VoidPtr>
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{
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typedef __hash_key_value_types<_Tp> __base;
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public:
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typedef ptrdiff_t difference_type;
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typedef size_t size_type;
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typedef typename __rebind_pointer<_NodePtr, void>::type __void_pointer;
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typedef typename pointer_traits<_NodePtr>::element_type __node_type;
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typedef _NodePtr __node_pointer;
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typedef __hash_node_base<__node_pointer> __node_base_type;
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typedef typename __rebind_pointer<_NodePtr, __node_base_type>::type
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__node_base_pointer;
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typedef _Tp __node_value_type;
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typedef typename __rebind_pointer<_VoidPtr, __node_value_type>::type
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__node_value_type_pointer;
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typedef typename __rebind_pointer<_VoidPtr, const __node_value_type>::type
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__const_node_value_type_pointer;
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private:
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static_assert(!is_const<__node_type>::value,
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"_NodePtr should never be a pointer to const");
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static_assert((is_same<typename pointer_traits<_VoidPtr>::element_type, void>::value),
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"_VoidPtr does not point to unqualified void type");
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static_assert((is_same<typename __rebind_pointer<_VoidPtr, __node_type>::type,
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_NodePtr>::value), "_VoidPtr does not rebind to _NodePtr.");
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};
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template <class _HashIterator>
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struct __hash_node_types_from_iterator;
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template <class _NodePtr>
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struct __hash_node_types_from_iterator<__hash_iterator<_NodePtr> > : __hash_node_types<_NodePtr> {};
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template <class _NodePtr>
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struct __hash_node_types_from_iterator<__hash_const_iterator<_NodePtr> > : __hash_node_types<_NodePtr> {};
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template <class _NodePtr>
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struct __hash_node_types_from_iterator<__hash_local_iterator<_NodePtr> > : __hash_node_types<_NodePtr> {};
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template <class _NodePtr>
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struct __hash_node_types_from_iterator<__hash_const_local_iterator<_NodePtr> > : __hash_node_types<_NodePtr> {};
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template <class _NodeValueTp, class _VoidPtr>
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struct __make_hash_node_types {
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typedef __hash_node<_NodeValueTp, _VoidPtr> _NodeTp;
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typedef typename __rebind_pointer<_VoidPtr, _NodeTp>::type _NodePtr;
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typedef __hash_node_types<_NodePtr> type;
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};
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template <class _NodePtr>
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class _LIBCPP_TYPE_VIS_ONLY __hash_iterator
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{
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typedef __hash_node_types<_NodePtr> _NodeTypes;
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typedef _NodePtr __node_pointer;
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__node_pointer __node_;
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public:
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typedef forward_iterator_tag iterator_category;
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typedef typename _NodeTypes::__node_value_type value_type;
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typedef typename _NodeTypes::difference_type difference_type;
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typedef value_type& reference;
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typedef typename _NodeTypes::__node_value_type_pointer pointer;
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_LIBCPP_INLINE_VISIBILITY __hash_iterator() _NOEXCEPT
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#if _LIBCPP_STD_VER > 11
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: __node_(nullptr)
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#endif
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{
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#if _LIBCPP_DEBUG_LEVEL >= 2
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__get_db()->__insert_i(this);
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#endif
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}
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#if _LIBCPP_DEBUG_LEVEL >= 2
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_LIBCPP_INLINE_VISIBILITY
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__hash_iterator(const __hash_iterator& __i)
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: __node_(__i.__node_)
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{
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__get_db()->__iterator_copy(this, &__i);
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}
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_LIBCPP_INLINE_VISIBILITY
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~__hash_iterator()
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{
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__get_db()->__erase_i(this);
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}
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_LIBCPP_INLINE_VISIBILITY
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__hash_iterator& operator=(const __hash_iterator& __i)
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{
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if (this != &__i)
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{
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__get_db()->__iterator_copy(this, &__i);
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__node_ = __i.__node_;
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}
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return *this;
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}
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#endif // _LIBCPP_DEBUG_LEVEL >= 2
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_LIBCPP_INLINE_VISIBILITY
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reference operator*() const
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{
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#if _LIBCPP_DEBUG_LEVEL >= 2
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_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
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"Attempted to dereference a non-dereferenceable unordered container iterator");
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#endif
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return __node_->__value_;
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}
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_LIBCPP_INLINE_VISIBILITY
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pointer operator->() const
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{
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#if _LIBCPP_DEBUG_LEVEL >= 2
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_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
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"Attempted to dereference a non-dereferenceable unordered container iterator");
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#endif
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return pointer_traits<pointer>::pointer_to(__node_->__value_);
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}
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_LIBCPP_INLINE_VISIBILITY
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__hash_iterator& operator++()
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{
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#if _LIBCPP_DEBUG_LEVEL >= 2
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_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
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"Attempted to increment non-incrementable unordered container iterator");
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#endif
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__node_ = __node_->__next_;
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return *this;
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}
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_LIBCPP_INLINE_VISIBILITY
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__hash_iterator operator++(int)
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{
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__hash_iterator __t(*this);
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++(*this);
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return __t;
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}
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friend _LIBCPP_INLINE_VISIBILITY
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bool operator==(const __hash_iterator& __x, const __hash_iterator& __y)
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{
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return __x.__node_ == __y.__node_;
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}
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friend _LIBCPP_INLINE_VISIBILITY
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bool operator!=(const __hash_iterator& __x, const __hash_iterator& __y)
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{return !(__x == __y);}
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private:
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#if _LIBCPP_DEBUG_LEVEL >= 2
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_LIBCPP_INLINE_VISIBILITY
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__hash_iterator(__node_pointer __node, const void* __c) _NOEXCEPT
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: __node_(__node)
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{
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__get_db()->__insert_ic(this, __c);
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}
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#else
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_LIBCPP_INLINE_VISIBILITY
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__hash_iterator(__node_pointer __node) _NOEXCEPT
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: __node_(__node)
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{}
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#endif
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template <class, class, class, class> friend class __hash_table;
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template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_const_iterator;
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template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_map_iterator;
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template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY unordered_map;
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template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY unordered_multimap;
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};
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template <class _NodePtr>
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class _LIBCPP_TYPE_VIS_ONLY __hash_const_iterator
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{
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static_assert(!is_const<typename pointer_traits<_NodePtr>::element_type>::value, "");
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typedef __hash_node_types<_NodePtr> _NodeTypes;
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typedef _NodePtr __node_pointer;
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__node_pointer __node_;
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public:
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typedef __hash_iterator<_NodePtr> __non_const_iterator;
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typedef forward_iterator_tag iterator_category;
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typedef typename _NodeTypes::__node_value_type value_type;
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typedef typename _NodeTypes::difference_type difference_type;
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typedef const value_type& reference;
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typedef typename _NodeTypes::__const_node_value_type_pointer pointer;
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_LIBCPP_INLINE_VISIBILITY __hash_const_iterator() _NOEXCEPT
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#if _LIBCPP_STD_VER > 11
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: __node_(nullptr)
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#endif
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{
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#if _LIBCPP_DEBUG_LEVEL >= 2
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__get_db()->__insert_i(this);
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#endif
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}
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_LIBCPP_INLINE_VISIBILITY
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__hash_const_iterator(const __non_const_iterator& __x) _NOEXCEPT
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: __node_(__x.__node_)
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{
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|
#if _LIBCPP_DEBUG_LEVEL >= 2
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|
__get_db()->__iterator_copy(this, &__x);
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|
#endif
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}
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|
#if _LIBCPP_DEBUG_LEVEL >= 2
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_LIBCPP_INLINE_VISIBILITY
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__hash_const_iterator(const __hash_const_iterator& __i)
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: __node_(__i.__node_)
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{
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__get_db()->__iterator_copy(this, &__i);
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}
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_LIBCPP_INLINE_VISIBILITY
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~__hash_const_iterator()
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{
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__get_db()->__erase_i(this);
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|
}
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_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_iterator& operator=(const __hash_const_iterator& __i)
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|
{
|
|
if (this != &__i)
|
|
{
|
|
__get_db()->__iterator_copy(this, &__i);
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|
__node_ = __i.__node_;
|
|
}
|
|
return *this;
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|
}
|
|
|
|
#endif // _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
reference operator*() const
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to dereference a non-dereferenceable unordered container const_iterator");
|
|
#endif
|
|
return __node_->__value_;
|
|
}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
pointer operator->() const
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to dereference a non-dereferenceable unordered container const_iterator");
|
|
#endif
|
|
return pointer_traits<pointer>::pointer_to(__node_->__value_);
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_iterator& operator++()
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to increment non-incrementable unordered container const_iterator");
|
|
#endif
|
|
__node_ = __node_->__next_;
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|
return *this;
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|
}
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|
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|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_iterator operator++(int)
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|
{
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|
__hash_const_iterator __t(*this);
|
|
++(*this);
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|
return __t;
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|
}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const __hash_const_iterator& __x, const __hash_const_iterator& __y)
|
|
{
|
|
return __x.__node_ == __y.__node_;
|
|
}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const __hash_const_iterator& __x, const __hash_const_iterator& __y)
|
|
{return !(__x == __y);}
|
|
|
|
private:
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_iterator(__node_pointer __node, const void* __c) _NOEXCEPT
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|
: __node_(__node)
|
|
{
|
|
__get_db()->__insert_ic(this, __c);
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|
}
|
|
#else
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_iterator(__node_pointer __node) _NOEXCEPT
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|
: __node_(__node)
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|
{}
|
|
#endif
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|
|
template <class, class, class, class> friend class __hash_table;
|
|
template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_map_const_iterator;
|
|
template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY unordered_map;
|
|
template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY unordered_multimap;
|
|
};
|
|
|
|
template <class _NodePtr>
|
|
class _LIBCPP_TYPE_VIS_ONLY __hash_local_iterator
|
|
{
|
|
typedef __hash_node_types<_NodePtr> _NodeTypes;
|
|
typedef _NodePtr __node_pointer;
|
|
|
|
__node_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;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY __hash_local_iterator() _NOEXCEPT
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__get_db()->__insert_i(this);
|
|
#endif
|
|
}
|
|
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_local_iterator(const __hash_local_iterator& __i)
|
|
: __node_(__i.__node_),
|
|
__bucket_(__i.__bucket_),
|
|
__bucket_count_(__i.__bucket_count_)
|
|
{
|
|
__get_db()->__iterator_copy(this, &__i);
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
~__hash_local_iterator()
|
|
{
|
|
__get_db()->__erase_i(this);
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_local_iterator& operator=(const __hash_local_iterator& __i)
|
|
{
|
|
if (this != &__i)
|
|
{
|
|
__get_db()->__iterator_copy(this, &__i);
|
|
__node_ = __i.__node_;
|
|
__bucket_ = __i.__bucket_;
|
|
__bucket_count_ = __i.__bucket_count_;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
#endif // _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
reference operator*() const
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to dereference a non-dereferenceable unordered container local_iterator");
|
|
#endif
|
|
return __node_->__value_;
|
|
}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
pointer operator->() const
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to dereference a non-dereferenceable unordered container local_iterator");
|
|
#endif
|
|
return pointer_traits<pointer>::pointer_to(__node_->__value_);
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_local_iterator& operator++()
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to increment non-incrementable unordered container local_iterator");
|
|
#endif
|
|
__node_ = __node_->__next_;
|
|
if (__node_ != nullptr && __constrain_hash(__node_->__hash_, __bucket_count_) != __bucket_)
|
|
__node_ = nullptr;
|
|
return *this;
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_local_iterator operator++(int)
|
|
{
|
|
__hash_local_iterator __t(*this);
|
|
++(*this);
|
|
return __t;
|
|
}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const __hash_local_iterator& __x, const __hash_local_iterator& __y)
|
|
{
|
|
return __x.__node_ == __y.__node_;
|
|
}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const __hash_local_iterator& __x, const __hash_local_iterator& __y)
|
|
{return !(__x == __y);}
|
|
|
|
private:
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_local_iterator(__node_pointer __node, size_t __bucket,
|
|
size_t __bucket_count, const void* __c) _NOEXCEPT
|
|
: __node_(__node),
|
|
__bucket_(__bucket),
|
|
__bucket_count_(__bucket_count)
|
|
{
|
|
__get_db()->__insert_ic(this, __c);
|
|
if (__node_ != nullptr)
|
|
__node_ = __node_->__next_;
|
|
}
|
|
#else
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_local_iterator(__node_pointer __node, size_t __bucket,
|
|
size_t __bucket_count) _NOEXCEPT
|
|
: __node_(__node),
|
|
__bucket_(__bucket),
|
|
__bucket_count_(__bucket_count)
|
|
{
|
|
if (__node_ != nullptr)
|
|
__node_ = __node_->__next_;
|
|
}
|
|
#endif
|
|
template <class, class, class, class> friend class __hash_table;
|
|
template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_const_local_iterator;
|
|
template <class> friend class _LIBCPP_TYPE_VIS_ONLY __hash_map_iterator;
|
|
};
|
|
|
|
template <class _ConstNodePtr>
|
|
class _LIBCPP_TYPE_VIS_ONLY __hash_const_local_iterator
|
|
{
|
|
typedef __hash_node_types<_ConstNodePtr> _NodeTypes;
|
|
typedef _ConstNodePtr __node_pointer;
|
|
|
|
__node_pointer __node_;
|
|
size_t __bucket_;
|
|
size_t __bucket_count_;
|
|
|
|
typedef pointer_traits<__node_pointer> __pointer_traits;
|
|
typedef typename __pointer_traits::element_type __node;
|
|
typedef typename remove_const<__node>::type __non_const_node;
|
|
typedef typename __rebind_pointer<__node_pointer, __non_const_node>::type
|
|
__non_const_node_pointer;
|
|
public:
|
|
typedef __hash_local_iterator<__non_const_node_pointer>
|
|
__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_INLINE_VISIBILITY __hash_const_local_iterator() _NOEXCEPT
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__get_db()->__insert_i(this);
|
|
#endif
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_local_iterator(const __non_const_iterator& __x) _NOEXCEPT
|
|
: __node_(__x.__node_),
|
|
__bucket_(__x.__bucket_),
|
|
__bucket_count_(__x.__bucket_count_)
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__get_db()->__iterator_copy(this, &__x);
|
|
#endif
|
|
}
|
|
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_local_iterator(const __hash_const_local_iterator& __i)
|
|
: __node_(__i.__node_),
|
|
__bucket_(__i.__bucket_),
|
|
__bucket_count_(__i.__bucket_count_)
|
|
{
|
|
__get_db()->__iterator_copy(this, &__i);
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
~__hash_const_local_iterator()
|
|
{
|
|
__get_db()->__erase_i(this);
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_local_iterator& operator=(const __hash_const_local_iterator& __i)
|
|
{
|
|
if (this != &__i)
|
|
{
|
|
__get_db()->__iterator_copy(this, &__i);
|
|
__node_ = __i.__node_;
|
|
__bucket_ = __i.__bucket_;
|
|
__bucket_count_ = __i.__bucket_count_;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
#endif // _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
reference operator*() const
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to dereference a non-dereferenceable unordered container const_local_iterator");
|
|
#endif
|
|
return __node_->__value_;
|
|
}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
pointer operator->() const
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to dereference a non-dereferenceable unordered container const_local_iterator");
|
|
#endif
|
|
return pointer_traits<pointer>::pointer_to(__node_->__value_);
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_local_iterator& operator++()
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this),
|
|
"Attempted to increment non-incrementable unordered container const_local_iterator");
|
|
#endif
|
|
__node_ = __node_->__next_;
|
|
if (__node_ != nullptr && __constrain_hash(__node_->__hash_, __bucket_count_) != __bucket_)
|
|
__node_ = nullptr;
|
|
return *this;
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_local_iterator operator++(int)
|
|
{
|
|
__hash_const_local_iterator __t(*this);
|
|
++(*this);
|
|
return __t;
|
|
}
|
|
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator==(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y)
|
|
{
|
|
return __x.__node_ == __y.__node_;
|
|
}
|
|
friend _LIBCPP_INLINE_VISIBILITY
|
|
bool operator!=(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y)
|
|
{return !(__x == __y);}
|
|
|
|
private:
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_local_iterator(__node_pointer __node, size_t __bucket,
|
|
size_t __bucket_count, const void* __c) _NOEXCEPT
|
|
: __node_(__node),
|
|
__bucket_(__bucket),
|
|
__bucket_count_(__bucket_count)
|
|
{
|
|
__get_db()->__insert_ic(this, __c);
|
|
if (__node_ != nullptr)
|
|
__node_ = __node_->__next_;
|
|
}
|
|
#else
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__hash_const_local_iterator(__node_pointer __node, size_t __bucket,
|
|
size_t __bucket_count) _NOEXCEPT
|
|
: __node_(__node),
|
|
__bucket_(__bucket),
|
|
__bucket_count_(__bucket_count)
|
|
{
|
|
if (__node_ != nullptr)
|
|
__node_ = __node_->__next_;
|
|
}
|
|
#endif
|
|
template <class, class, class, class> friend class __hash_table;
|
|
template <class> friend class _LIBCPP_TYPE_VIS_ONLY __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;
|
|
|
|
__compressed_pair<size_type, allocator_type> __data_;
|
|
public:
|
|
typedef typename __alloc_traits::pointer pointer;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__bucket_list_deallocator()
|
|
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
|
|
: __data_(0) {}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__bucket_list_deallocator(const allocator_type& __a, size_type __size)
|
|
_NOEXCEPT_(is_nothrow_copy_constructible<allocator_type>::value)
|
|
: __data_(__size, __a) {}
|
|
|
|
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__bucket_list_deallocator(__bucket_list_deallocator&& __x)
|
|
_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value)
|
|
: __data_(_VSTD::move(__x.__data_))
|
|
{
|
|
__x.size() = 0;
|
|
}
|
|
|
|
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type& size() _NOEXCEPT {return __data_.first();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type size() const _NOEXCEPT {return __data_.first();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
allocator_type& __alloc() _NOEXCEPT {return __data_.second();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const allocator_type& __alloc() const _NOEXCEPT {return __data_.second();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void operator()(pointer __p) _NOEXCEPT
|
|
{
|
|
__alloc_traits::deallocate(__alloc(), __p, size());
|
|
}
|
|
};
|
|
|
|
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;
|
|
|
|
public:
|
|
typedef typename __alloc_traits::pointer pointer;
|
|
private:
|
|
typedef __hash_node_types<pointer> _NodeTypes;
|
|
|
|
allocator_type& __na_;
|
|
|
|
__hash_node_destructor& operator=(const __hash_node_destructor&);
|
|
|
|
public:
|
|
bool __value_constructed;
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit __hash_node_destructor(allocator_type& __na,
|
|
bool __constructed = false) _NOEXCEPT
|
|
: __na_(__na),
|
|
__value_constructed(__constructed)
|
|
{}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void operator()(pointer __p) _NOEXCEPT
|
|
{
|
|
if (__value_constructed)
|
|
__alloc_traits::destroy(__na_, _NodeTypes::__get_ptr(__p->__value_));
|
|
if (__p)
|
|
__alloc_traits::deallocate(__na_, __p, 1);
|
|
}
|
|
|
|
template <class> friend class __hash_map_node_destructor;
|
|
};
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
class __hash_table
|
|
{
|
|
public:
|
|
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 typename _NodeTypes::__node_value_type __node_value_type;
|
|
typedef typename _NodeTypes::__container_value_type __container_value_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;
|
|
#else
|
|
typedef typename _NodeTypes::size_type size_type;
|
|
#endif
|
|
typedef typename _NodeTypes::difference_type difference_type;
|
|
public:
|
|
// Create __node
|
|
|
|
typedef typename _NodeTypes::__node_type __node;
|
|
typedef typename __rebind_alloc_helper<__alloc_traits, __node>::type __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;
|
|
|
|
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 typename __rebind_alloc_helper<__node_traits, __first_node>::type
|
|
__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 typename __rebind_alloc_helper<__node_traits, __node_pointer>::type __pointer_allocator;
|
|
typedef __bucket_list_deallocator<__pointer_allocator> __bucket_list_deleter;
|
|
typedef unique_ptr<__node_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_INLINE_VISIBILITY
|
|
size_type& size() _NOEXCEPT {return __p2_.first();}
|
|
public:
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type size() const _NOEXCEPT {return __p2_.first();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
hasher& hash_function() _NOEXCEPT {return __p2_.second();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const hasher& hash_function() const _NOEXCEPT {return __p2_.second();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
float& max_load_factor() _NOEXCEPT {return __p3_.first();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
float max_load_factor() const _NOEXCEPT {return __p3_.first();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
key_equal& key_eq() _NOEXCEPT {return __p3_.second();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const key_equal& key_eq() const _NOEXCEPT {return __p3_.second();}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__node_allocator& __node_alloc() _NOEXCEPT {return __p1_.second();}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
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_INLINE_VISIBILITY
|
|
__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_INLINE_VISIBILITY
|
|
__hash_table(const hasher& __hf, const key_equal& __eql);
|
|
__hash_table(const hasher& __hf, const key_equal& __eql,
|
|
const allocator_type& __a);
|
|
explicit __hash_table(const allocator_type& __a);
|
|
__hash_table(const __hash_table& __u);
|
|
__hash_table(const __hash_table& __u, const allocator_type& __a);
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
__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);
|
|
__hash_table(__hash_table&& __u, const allocator_type& __a);
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
~__hash_table();
|
|
|
|
__hash_table& operator=(const __hash_table& __u);
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
__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);
|
|
#endif
|
|
template <class _InputIterator>
|
|
void __assign_unique(_InputIterator __first, _InputIterator __last);
|
|
template <class _InputIterator>
|
|
void __assign_multi(_InputIterator __first, _InputIterator __last);
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type max_size() const _NOEXCEPT
|
|
{
|
|
return allocator_traits<__pointer_allocator>::max_size(
|
|
__bucket_list_.get_deleter().__alloc());
|
|
}
|
|
|
|
pair<iterator, bool> __node_insert_unique(__node_pointer __nd);
|
|
iterator __node_insert_multi(__node_pointer __nd);
|
|
iterator __node_insert_multi(const_iterator __p,
|
|
__node_pointer __nd);
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
template <class _Key, class ..._Args>
|
|
pair<iterator, bool> __emplace_unique_key_args(_Key const& __k, _Args&&... __args);
|
|
|
|
template <class... _Args>
|
|
pair<iterator, bool> __emplace_unique(_Args&&... __args);
|
|
template <class... _Args>
|
|
iterator __emplace_multi(_Args&&... __args);
|
|
template <class... _Args>
|
|
iterator __emplace_hint_multi(const_iterator __p, _Args&&... __args);
|
|
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
pair<iterator, bool>
|
|
__insert_unique(__container_value_type&& __x) {
|
|
return __emplace_unique_key_args(_NodeTypes::__get_key(__x), _VSTD::move(__x));
|
|
}
|
|
|
|
template <class _Pp, class = typename enable_if<
|
|
!__is_same_uncvref<_Pp, __container_value_type>::value
|
|
>::type>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
pair<iterator, bool> __insert_unique(_Pp&& __x) {
|
|
return __emplace_unique(_VSTD::forward<_Pp>(__x));
|
|
}
|
|
|
|
template <class _Pp>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
iterator __insert_multi(_Pp&& __x) {
|
|
return __emplace_multi(_VSTD::forward<_Pp>(__x));
|
|
}
|
|
|
|
template <class _Pp>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
iterator __insert_multi(const_iterator __p, _Pp&& __x) {
|
|
return __emplace_hint_multi(__p, _VSTD::forward<_Pp>(__x));
|
|
}
|
|
|
|
#else // !defined(_LIBCPP_CXX03_LANG)
|
|
template <class _Key, class _Args>
|
|
pair<iterator, bool> __emplace_unique_key_args(_Key const&, _Args& __args);
|
|
|
|
iterator __insert_multi(const __container_value_type& __x);
|
|
iterator __insert_multi(const_iterator __p, const __container_value_type& __x);
|
|
#endif
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
pair<iterator, bool> __insert_unique(const __container_value_type& __x) {
|
|
return __emplace_unique_key_args(_NodeTypes::__get_key(__x), __x);
|
|
}
|
|
|
|
void clear() _NOEXCEPT;
|
|
void rehash(size_type __n);
|
|
_LIBCPP_INLINE_VISIBILITY void reserve(size_type __n)
|
|
{rehash(static_cast<size_type>(ceil(__n / max_load_factor())));}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type bucket_count() const _NOEXCEPT
|
|
{
|
|
return __bucket_list_.get_deleter().size();
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
iterator begin() _NOEXCEPT;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
iterator end() _NOEXCEPT;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const_iterator begin() const _NOEXCEPT;
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const_iterator end() const _NOEXCEPT;
|
|
|
|
template <class _Key>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type bucket(const _Key& __k) const
|
|
{
|
|
_LIBCPP_ASSERT(bucket_count() > 0,
|
|
"unordered container::bucket(key) called when bucket_count() == 0");
|
|
return __constrain_hash(hash_function()(__k), bucket_count());
|
|
}
|
|
|
|
template <class _Key>
|
|
iterator find(const _Key& __x);
|
|
template <class _Key>
|
|
const_iterator find(const _Key& __x) const;
|
|
|
|
typedef __hash_node_destructor<__node_allocator> _Dp;
|
|
typedef unique_ptr<__node, _Dp> __node_holder;
|
|
|
|
iterator erase(const_iterator __p);
|
|
iterator erase(const_iterator __first, const_iterator __last);
|
|
template <class _Key>
|
|
size_type __erase_unique(const _Key& __k);
|
|
template <class _Key>
|
|
size_type __erase_multi(const _Key& __k);
|
|
__node_holder remove(const_iterator __p) _NOEXCEPT;
|
|
|
|
template <class _Key>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type __count_unique(const _Key& __k) const;
|
|
template <class _Key>
|
|
size_type __count_multi(const _Key& __k) const;
|
|
|
|
template <class _Key>
|
|
pair<iterator, iterator>
|
|
__equal_range_unique(const _Key& __k);
|
|
template <class _Key>
|
|
pair<const_iterator, const_iterator>
|
|
__equal_range_unique(const _Key& __k) const;
|
|
|
|
template <class _Key>
|
|
pair<iterator, iterator>
|
|
__equal_range_multi(const _Key& __k);
|
|
template <class _Key>
|
|
pair<const_iterator, const_iterator>
|
|
__equal_range_multi(const _Key& __k) const;
|
|
|
|
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)
|
|
);
|
|
#else
|
|
_NOEXCEPT_(__is_nothrow_swappable<hasher>::value && __is_nothrow_swappable<key_equal>::value);
|
|
#endif
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
size_type max_bucket_count() const _NOEXCEPT
|
|
{return __pointer_alloc_traits::max_size(__bucket_list_.get_deleter().__alloc());}
|
|
size_type bucket_size(size_type __n) const;
|
|
_LIBCPP_INLINE_VISIBILITY float load_factor() const _NOEXCEPT
|
|
{
|
|
size_type __bc = bucket_count();
|
|
return __bc != 0 ? (float)size() / __bc : 0.f;
|
|
}
|
|
_LIBCPP_INLINE_VISIBILITY void max_load_factor(float __mlf) _NOEXCEPT
|
|
{
|
|
_LIBCPP_ASSERT(__mlf > 0,
|
|
"unordered container::max_load_factor(lf) called with lf <= 0");
|
|
max_load_factor() = _VSTD::max(__mlf, load_factor());
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
local_iterator
|
|
begin(size_type __n)
|
|
{
|
|
_LIBCPP_ASSERT(__n < bucket_count(),
|
|
"unordered container::begin(n) called with n >= bucket_count()");
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return local_iterator(__bucket_list_[__n], __n, bucket_count(), this);
|
|
#else
|
|
return local_iterator(__bucket_list_[__n], __n, bucket_count());
|
|
#endif
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
local_iterator
|
|
end(size_type __n)
|
|
{
|
|
_LIBCPP_ASSERT(__n < bucket_count(),
|
|
"unordered container::end(n) called with n >= bucket_count()");
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return local_iterator(nullptr, __n, bucket_count(), this);
|
|
#else
|
|
return local_iterator(nullptr, __n, bucket_count());
|
|
#endif
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const_local_iterator
|
|
cbegin(size_type __n) const
|
|
{
|
|
_LIBCPP_ASSERT(__n < bucket_count(),
|
|
"unordered container::cbegin(n) called with n >= bucket_count()");
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return const_local_iterator(__bucket_list_[__n], __n, bucket_count(), this);
|
|
#else
|
|
return const_local_iterator(__bucket_list_[__n], __n, bucket_count());
|
|
#endif
|
|
}
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
const_local_iterator
|
|
cend(size_type __n) const
|
|
{
|
|
_LIBCPP_ASSERT(__n < bucket_count(),
|
|
"unordered container::cend(n) called with n >= bucket_count()");
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return const_local_iterator(nullptr, __n, bucket_count(), this);
|
|
#else
|
|
return const_local_iterator(nullptr, __n, bucket_count());
|
|
#endif
|
|
}
|
|
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
bool __dereferenceable(const const_iterator* __i) const;
|
|
bool __decrementable(const const_iterator* __i) const;
|
|
bool __addable(const const_iterator* __i, ptrdiff_t __n) const;
|
|
bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const;
|
|
|
|
#endif // _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
private:
|
|
void __rehash(size_type __n);
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
template <class ..._Args>
|
|
__node_holder __construct_node(_Args&& ...__args);
|
|
|
|
template <class _First, class ..._Rest>
|
|
__node_holder __construct_node_hash(size_t __hash, _First&& __f, _Rest&&... __rest);
|
|
#else // _LIBCPP_CXX03_LANG
|
|
__node_holder __construct_node(const __container_value_type& __v);
|
|
__node_holder __construct_node_hash(size_t __hash, const __container_value_type& __v);
|
|
#endif
|
|
|
|
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void __copy_assign_alloc(const __hash_table& __u)
|
|
{__copy_assign_alloc(__u, integral_constant<bool,
|
|
__node_traits::propagate_on_container_copy_assignment::value>());}
|
|
void __copy_assign_alloc(const __hash_table& __u, true_type);
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void __copy_assign_alloc(const __hash_table&, false_type) {}
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
void __move_assign(__hash_table& __u, false_type);
|
|
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_INLINE_VISIBILITY
|
|
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_INLINE_VISIBILITY
|
|
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() =
|
|
_VSTD::move(__u.__bucket_list_.get_deleter().__alloc());
|
|
__node_alloc() = _VSTD::move(__u.__node_alloc());
|
|
}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
void __move_assign_alloc(__hash_table&, false_type) _NOEXCEPT {}
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
|
|
void __deallocate(__node_pointer __np) _NOEXCEPT;
|
|
__node_pointer __detach() _NOEXCEPT;
|
|
|
|
template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY unordered_map;
|
|
template <class, class, class, class, class> friend class _LIBCPP_TYPE_VIS_ONLY 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),
|
|
__p3_(1.0f)
|
|
{
|
|
}
|
|
|
|
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)
|
|
{
|
|
}
|
|
|
|
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)
|
|
: __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)),
|
|
__p1_(__node_allocator(__a)),
|
|
__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 allocator_type& __a)
|
|
: __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)),
|
|
__p1_(__node_allocator(__a)),
|
|
__p2_(0),
|
|
__p3_(1.0f)
|
|
{
|
|
}
|
|
|
|
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_(allocator_traits<__node_allocator>::
|
|
select_on_container_copy_construction(__u.__node_alloc())),
|
|
__p2_(0, __u.hash_function()),
|
|
__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)
|
|
: __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)),
|
|
__p1_(__node_allocator(__a)),
|
|
__p2_(0, __u.hash_function()),
|
|
__p3_(__u.__p3_)
|
|
{
|
|
}
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
|
|
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 &&
|
|
is_nothrow_move_constructible<key_equal>::value)
|
|
: __bucket_list_(_VSTD::move(__u.__bucket_list_)),
|
|
__p1_(_VSTD::move(__u.__p1_)),
|
|
__p2_(_VSTD::move(__u.__p2_)),
|
|
__p3_(_VSTD::move(__u.__p3_))
|
|
{
|
|
if (size() > 0)
|
|
{
|
|
__bucket_list_[__constrain_hash(__p1_.first().__next_->__hash_, bucket_count())] =
|
|
static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()));
|
|
__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)
|
|
: __bucket_list_(nullptr, __bucket_list_deleter(__pointer_allocator(__a), 0)),
|
|
__p1_(__node_allocator(__a)),
|
|
__p2_(0, _VSTD::move(__u.hash_function())),
|
|
__p3_(_VSTD::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_[__constrain_hash(__p1_.first().__next_->__hash_, bucket_count())] =
|
|
static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()));
|
|
size() = __u.size();
|
|
__u.size() = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::~__hash_table()
|
|
{
|
|
__deallocate(__p1_.first().__next_);
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__get_db()->__erase_c(this);
|
|
#endif
|
|
}
|
|
|
|
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();
|
|
}
|
|
|
|
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 != &__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_pointer __np)
|
|
_NOEXCEPT
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
while (__np != nullptr)
|
|
{
|
|
__node_pointer __next = __np->__next_;
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__c_node* __c = __get_db()->__find_c_and_lock(this);
|
|
for (__i_node** __p = __c->end_; __p != __c->beg_; )
|
|
{
|
|
--__p;
|
|
iterator* __i = static_cast<iterator*>((*__p)->__i_);
|
|
if (__i->__node_ == __np)
|
|
{
|
|
(*__p)->__c_ = nullptr;
|
|
if (--__c->end_ != __p)
|
|
memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*));
|
|
}
|
|
}
|
|
__get_db()->unlock();
|
|
#endif
|
|
__node_traits::destroy(__na, _NodeTypes::__get_ptr(__np->__value_));
|
|
__node_traits::deallocate(__na, __np, 1);
|
|
__np = __next;
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_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;
|
|
__node_pointer __cache = __p1_.first().__next_;
|
|
__p1_.first().__next_ = nullptr;
|
|
return __cache;
|
|
}
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
|
|
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() = _VSTD::move(__u.hash_function());
|
|
max_load_factor() = __u.max_load_factor();
|
|
key_eq() = _VSTD::move(__u.key_eq());
|
|
__p1_.first().__next_ = __u.__p1_.first().__next_;
|
|
if (size() > 0)
|
|
{
|
|
__bucket_list_[__constrain_hash(__p1_.first().__next_->__hash_, bucket_count())] =
|
|
static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()));
|
|
__u.__p1_.first().__next_ = nullptr;
|
|
__u.size() = 0;
|
|
}
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__get_db()->swap(this, &__u);
|
|
#endif
|
|
}
|
|
|
|
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() = _VSTD::move(__u.hash_function());
|
|
key_eq() = _VSTD::move(__u.key_eq());
|
|
max_load_factor() = __u.max_load_factor();
|
|
if (bucket_count() != 0)
|
|
{
|
|
__node_pointer __cache = __detach();
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
try
|
|
{
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
|
const_iterator __i = __u.begin();
|
|
while (__cache != nullptr && __u.size() != 0)
|
|
{
|
|
__cache->__value_ = _VSTD::move(__u.remove(__i++)->__value_);
|
|
__node_pointer __next = __cache->__next_;
|
|
__node_insert_multi(__cache);
|
|
__cache = __next;
|
|
}
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
}
|
|
catch (...)
|
|
{
|
|
__deallocate(__cache);
|
|
throw;
|
|
}
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
|
__deallocate(__cache);
|
|
}
|
|
const_iterator __i = __u.begin();
|
|
while (__u.size() != 0)
|
|
{
|
|
__node_holder __h = __construct_node(_NodeTypes::__move(__u.remove(__i++)->__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;
|
|
}
|
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
|
|
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)
|
|
{
|
|
__node_pointer __cache = __detach();
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
try
|
|
{
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
|
for (; __cache != nullptr && __first != __last; ++__first)
|
|
{
|
|
__cache->__value_ = *__first;
|
|
__node_pointer __next = __cache->__next_;
|
|
__node_insert_unique(__cache);
|
|
__cache = __next;
|
|
}
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
}
|
|
catch (...)
|
|
{
|
|
__deallocate(__cache);
|
|
throw;
|
|
}
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
|
__deallocate(__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)
|
|
{
|
|
__node_pointer __cache = __detach();
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
try
|
|
{
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
|
for (; __cache != nullptr && __first != __last; ++__first)
|
|
{
|
|
__cache->__value_ = *__first;
|
|
__node_pointer __next = __cache->__next_;
|
|
__node_insert_multi(__cache);
|
|
__cache = __next;
|
|
}
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
}
|
|
catch (...)
|
|
{
|
|
__deallocate(__cache);
|
|
throw;
|
|
}
|
|
#endif // _LIBCPP_NO_EXCEPTIONS
|
|
__deallocate(__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
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return iterator(__p1_.first().__next_, this);
|
|
#else
|
|
return iterator(__p1_.first().__next_);
|
|
#endif
|
|
}
|
|
|
|
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
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return iterator(nullptr, this);
|
|
#else
|
|
return iterator(nullptr);
|
|
#endif
|
|
}
|
|
|
|
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
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return const_iterator(__p1_.first().__next_, this);
|
|
#else
|
|
return const_iterator(__p1_.first().__next_);
|
|
#endif
|
|
}
|
|
|
|
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
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return const_iterator(nullptr, this);
|
|
#else
|
|
return const_iterator(nullptr);
|
|
#endif
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::clear() _NOEXCEPT
|
|
{
|
|
if (size() > 0)
|
|
{
|
|
__deallocate(__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;
|
|
}
|
|
}
|
|
|
|
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->__value_);
|
|
size_type __bc = bucket_count();
|
|
bool __inserted = false;
|
|
__node_pointer __ndptr;
|
|
size_t __chash;
|
|
if (__bc != 0)
|
|
{
|
|
__chash = __constrain_hash(__nd->__hash_, __bc);
|
|
__ndptr = __bucket_list_[__chash];
|
|
if (__ndptr != nullptr)
|
|
{
|
|
for (__ndptr = __ndptr->__next_; __ndptr != nullptr &&
|
|
__constrain_hash(__ndptr->__hash_, __bc) == __chash;
|
|
__ndptr = __ndptr->__next_)
|
|
{
|
|
if (key_eq()(__ndptr->__value_, __nd->__value_))
|
|
goto __done;
|
|
}
|
|
}
|
|
}
|
|
{
|
|
if (size()+1 > __bc * max_load_factor() || __bc == 0)
|
|
{
|
|
rehash(_VSTD::max<size_type>(2 * __bc + !__is_hash_power2(__bc),
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
__chash = __constrain_hash(__nd->__hash_, __bc);
|
|
}
|
|
// insert_after __bucket_list_[__chash], or __first_node if bucket is null
|
|
__node_pointer __pn = __bucket_list_[__chash];
|
|
if (__pn == nullptr)
|
|
{
|
|
__pn = static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()));
|
|
__nd->__next_ = __pn->__next_;
|
|
__pn->__next_ = __nd;
|
|
// fix up __bucket_list_
|
|
__bucket_list_[__chash] = __pn;
|
|
if (__nd->__next_ != nullptr)
|
|
__bucket_list_[__constrain_hash(__nd->__next_->__hash_, __bc)] = __nd;
|
|
}
|
|
else
|
|
{
|
|
__nd->__next_ = __pn->__next_;
|
|
__pn->__next_ = __nd;
|
|
}
|
|
__ndptr = __nd;
|
|
// increment size
|
|
++size();
|
|
__inserted = true;
|
|
}
|
|
__done:
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return pair<iterator, bool>(iterator(__ndptr, this), __inserted);
|
|
#else
|
|
return pair<iterator, bool>(iterator(__ndptr), __inserted);
|
|
#endif
|
|
}
|
|
|
|
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->__value_);
|
|
size_type __bc = bucket_count();
|
|
if (size()+1 > __bc * max_load_factor() || __bc == 0)
|
|
{
|
|
rehash(_VSTD::max<size_type>(2 * __bc + !__is_hash_power2(__bc),
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
}
|
|
size_t __chash = __constrain_hash(__cp->__hash_, __bc);
|
|
__node_pointer __pn = __bucket_list_[__chash];
|
|
if (__pn == nullptr)
|
|
{
|
|
__pn = static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()));
|
|
__cp->__next_ = __pn->__next_;
|
|
__pn->__next_ = __cp;
|
|
// fix up __bucket_list_
|
|
__bucket_list_[__chash] = __pn;
|
|
if (__cp->__next_ != nullptr)
|
|
__bucket_list_[__constrain_hash(__cp->__next_->__hash_, __bc)] = __cp;
|
|
}
|
|
else
|
|
{
|
|
for (bool __found = false; __pn->__next_ != nullptr &&
|
|
__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_->__value_, __cp->__value_)))
|
|
{
|
|
if (!__found)
|
|
__found = true;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
__cp->__next_ = __pn->__next_;
|
|
__pn->__next_ = __cp;
|
|
if (__cp->__next_ != nullptr)
|
|
{
|
|
size_t __nhash = __constrain_hash(__cp->__next_->__hash_, __bc);
|
|
if (__nhash != __chash)
|
|
__bucket_list_[__nhash] = __cp;
|
|
}
|
|
}
|
|
++size();
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return iterator(__cp, this);
|
|
#else
|
|
return iterator(__cp);
|
|
#endif
|
|
}
|
|
|
|
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 _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__p) == this,
|
|
"unordered container::emplace_hint(const_iterator, args...) called with an iterator not"
|
|
" referring to this unordered container");
|
|
#endif
|
|
if (__p != end() && key_eq()(*__p, __cp->__value_))
|
|
{
|
|
__node_pointer __np = __p.__node_;
|
|
__cp->__hash_ = __np->__hash_;
|
|
size_type __bc = bucket_count();
|
|
if (size()+1 > __bc * max_load_factor() || __bc == 0)
|
|
{
|
|
rehash(_VSTD::max<size_type>(2 * __bc + !__is_hash_power2(__bc),
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
}
|
|
size_t __chash = __constrain_hash(__cp->__hash_, __bc);
|
|
__node_pointer __pp = __bucket_list_[__chash];
|
|
while (__pp->__next_ != __np)
|
|
__pp = __pp->__next_;
|
|
__cp->__next_ = __np;
|
|
__pp->__next_ = __cp;
|
|
++size();
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return iterator(__cp, this);
|
|
#else
|
|
return iterator(__cp);
|
|
#endif
|
|
}
|
|
return __node_insert_multi(__cp);
|
|
}
|
|
|
|
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class _Key, class ..._Args>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
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)
|
|
#else
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class _Key, class _Args>
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
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)
|
|
#endif
|
|
{
|
|
|
|
size_t __hash = hash_function()(__k);
|
|
size_type __bc = bucket_count();
|
|
bool __inserted = false;
|
|
__node_pointer __nd;
|
|
size_t __chash;
|
|
if (__bc != 0)
|
|
{
|
|
__chash = __constrain_hash(__hash, __bc);
|
|
__nd = __bucket_list_[__chash];
|
|
if (__nd != nullptr)
|
|
{
|
|
for (__nd = __nd->__next_; __nd != nullptr &&
|
|
__constrain_hash(__nd->__hash_, __bc) == __chash;
|
|
__nd = __nd->__next_)
|
|
{
|
|
if (key_eq()(__nd->__value_, __k))
|
|
goto __done;
|
|
}
|
|
}
|
|
}
|
|
{
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
__node_holder __h = __construct_node_hash(__hash, _VSTD::forward<_Args>(__args)...);
|
|
#else
|
|
__node_holder __h = __construct_node_hash(__hash, __args);
|
|
#endif
|
|
if (size()+1 > __bc * max_load_factor() || __bc == 0)
|
|
{
|
|
rehash(_VSTD::max<size_type>(2 * __bc + !__is_hash_power2(__bc),
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
__chash = __constrain_hash(__hash, __bc);
|
|
}
|
|
// insert_after __bucket_list_[__chash], or __first_node if bucket is null
|
|
__node_pointer __pn = __bucket_list_[__chash];
|
|
if (__pn == nullptr)
|
|
{
|
|
__pn = static_cast<__node_pointer>(static_cast<__void_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first())));
|
|
__h->__next_ = __pn->__next_;
|
|
__pn->__next_ = __h.get();
|
|
// fix up __bucket_list_
|
|
__bucket_list_[__chash] = __pn;
|
|
if (__h->__next_ != nullptr)
|
|
__bucket_list_[__constrain_hash(__h->__next_->__hash_, __bc)] = __h.get();
|
|
}
|
|
else
|
|
{
|
|
__h->__next_ = __pn->__next_;
|
|
__pn->__next_ = __h.get();
|
|
}
|
|
__nd = __h.release();
|
|
// increment size
|
|
++size();
|
|
__inserted = true;
|
|
}
|
|
__done:
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return pair<iterator, bool>(iterator(__nd, this), __inserted);
|
|
#else
|
|
return pair<iterator, bool>(iterator(__nd), __inserted);
|
|
#endif
|
|
}
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
|
|
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(_Args&&... __args)
|
|
{
|
|
__node_holder __h = __construct_node(_VSTD::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(_VSTD::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)
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__p) == this,
|
|
"unordered container::emplace_hint(const_iterator, args...) called with an iterator not"
|
|
" referring to this unordered container");
|
|
#endif
|
|
__node_holder __h = __construct_node(_VSTD::forward<_Args>(__args)...);
|
|
iterator __r = __node_insert_multi(__p, __h.get());
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
#else // _LIBCPP_CXX03_LANG
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__insert_multi(const __container_value_type& __x)
|
|
{
|
|
__node_holder __h = __construct_node(__x);
|
|
iterator __r = __node_insert_multi(__h.get());
|
|
__h.release();
|
|
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>::__insert_multi(const_iterator __p,
|
|
const __container_value_type& __x)
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__p) == this,
|
|
"unordered container::insert(const_iterator, lvalue) called with an iterator not"
|
|
" referring to this unordered container");
|
|
#endif
|
|
__node_holder __h = __construct_node(__x);
|
|
iterator __r = __node_insert_multi(__p, __h.get());
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::rehash(size_type __n)
|
|
{
|
|
if (__n == 1)
|
|
__n = 2;
|
|
else if (__n & (__n - 1))
|
|
__n = __next_prime(__n);
|
|
size_type __bc = bucket_count();
|
|
if (__n > __bc)
|
|
__rehash(__n);
|
|
else if (__n < __bc)
|
|
{
|
|
__n = _VSTD::max<size_type>
|
|
(
|
|
__n,
|
|
__is_hash_power2(__bc) ? __next_hash_pow2(size_t(ceil(float(size()) / max_load_factor()))) :
|
|
__next_prime(size_t(ceil(float(size()) / max_load_factor())))
|
|
);
|
|
if (__n < __bc)
|
|
__rehash(__n);
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__rehash(size_type __nbc)
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__get_db()->__invalidate_all(this);
|
|
#endif // _LIBCPP_DEBUG_LEVEL >= 2
|
|
__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;
|
|
__node_pointer __pp(static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first())));
|
|
__node_pointer __cp = __pp->__next_;
|
|
if (__cp != nullptr)
|
|
{
|
|
size_type __chash = __constrain_hash(__cp->__hash_, __nbc);
|
|
__bucket_list_[__chash] = __pp;
|
|
size_type __phash = __chash;
|
|
for (__pp = __cp, __cp = __cp->__next_; __cp != nullptr;
|
|
__cp = __pp->__next_)
|
|
{
|
|
__chash = __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
|
|
{
|
|
__node_pointer __np = __cp;
|
|
for (; __np->__next_ != nullptr &&
|
|
key_eq()(__cp->__value_, __np->__next_->__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 = __constrain_hash(__hash, __bc);
|
|
__node_pointer __nd = __bucket_list_[__chash];
|
|
if (__nd != nullptr)
|
|
{
|
|
for (__nd = __nd->__next_; __nd != nullptr &&
|
|
__constrain_hash(__nd->__hash_, __bc) == __chash;
|
|
__nd = __nd->__next_)
|
|
{
|
|
if (key_eq()(__nd->__value_, __k))
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return iterator(__nd, this);
|
|
#else
|
|
return iterator(__nd);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
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 = __constrain_hash(__hash, __bc);
|
|
__node_const_pointer __nd = __bucket_list_[__chash];
|
|
if (__nd != nullptr)
|
|
{
|
|
for (__nd = __nd->__next_; __nd != nullptr &&
|
|
__constrain_hash(__nd->__hash_, __bc) == __chash;
|
|
__nd = __nd->__next_)
|
|
{
|
|
if (key_eq()(__nd->__value_, __k))
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return const_iterator(__nd, this);
|
|
#else
|
|
return const_iterator(__nd);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
}
|
|
return end();
|
|
}
|
|
|
|
#ifndef _LIBCPP_CXX03_LANG
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
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));
|
|
__node_traits::construct(__na, _NodeTypes::__get_ptr(__h->__value_), _VSTD::forward<_Args>(__args)...);
|
|
__h.get_deleter().__value_constructed = true;
|
|
__h->__hash_ = hash_function()(__h->__value_);
|
|
__h->__next_ = nullptr;
|
|
return __h;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
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));
|
|
__node_traits::construct(__na, _NodeTypes::__get_ptr(__h->__value_),
|
|
_VSTD::forward<_First>(__f),
|
|
_VSTD::forward<_Rest>(__rest)...);
|
|
__h.get_deleter().__value_constructed = true;
|
|
__h->__hash_ = __hash;
|
|
__h->__next_ = nullptr;
|
|
return __h;
|
|
}
|
|
|
|
#else // _LIBCPP_CXX03_LANG
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_holder
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__construct_node(const __container_value_type& __v)
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
__node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na));
|
|
__node_traits::construct(__na, _NodeTypes::__get_ptr(__h->__value_), __v);
|
|
__h.get_deleter().__value_constructed = true;
|
|
__h->__hash_ = hash_function()(__h->__value_);
|
|
__h->__next_ = nullptr;
|
|
return _LIBCPP_EXPLICIT_MOVE(__h); // explicitly moved for C++03
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_holder
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__construct_node_hash(size_t __hash,
|
|
const __container_value_type& __v)
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
__node_holder __h(__node_traits::allocate(__na, 1), _Dp(__na));
|
|
__node_traits::construct(__na, _NodeTypes::__get_ptr(__h->__value_), __v);
|
|
__h.get_deleter().__value_constructed = true;
|
|
__h->__hash_ = __hash;
|
|
__h->__next_ = nullptr;
|
|
return _LIBCPP_EXPLICIT_MOVE(__h); // explicitly moved for C++03
|
|
}
|
|
|
|
#endif // _LIBCPP_CXX03_LANG
|
|
|
|
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)
|
|
{
|
|
__node_pointer __np = __p.__node_;
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__p) == this,
|
|
"unordered container erase(iterator) called with an iterator not"
|
|
" referring to this container");
|
|
_LIBCPP_ASSERT(__p != end(),
|
|
"unordered container erase(iterator) called with a non-dereferenceable iterator");
|
|
iterator __r(__np, this);
|
|
#else
|
|
iterator __r(__np);
|
|
#endif
|
|
++__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)
|
|
{
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this,
|
|
"unodered container::erase(iterator, iterator) called with an iterator not"
|
|
" referring to this unodered container");
|
|
_LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__last) == this,
|
|
"unodered container::erase(iterator, iterator) called with an iterator not"
|
|
" referring to this unodered container");
|
|
#endif
|
|
for (const_iterator __p = __first; __first != __last; __p = __first)
|
|
{
|
|
++__first;
|
|
erase(__p);
|
|
}
|
|
__node_pointer __np = __last.__node_;
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
return iterator (__np, this);
|
|
#else
|
|
return iterator (__np);
|
|
#endif
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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
|
|
__node_pointer __cn = __p.__node_;
|
|
size_type __bc = bucket_count();
|
|
size_t __chash = __constrain_hash(__cn->__hash_, __bc);
|
|
// find previous node
|
|
__node_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 == static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()))
|
|
|| __constrain_hash(__pn->__hash_, __bc) != __chash)
|
|
{
|
|
if (__cn->__next_ == nullptr || __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 = __constrain_hash(__cn->__next_->__hash_, __bc);
|
|
if (__nhash != __chash)
|
|
__bucket_list_[__nhash] = __pn;
|
|
}
|
|
// remove __cn
|
|
__pn->__next_ = __cn->__next_;
|
|
__cn->__next_ = nullptr;
|
|
--size();
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__c_node* __c = __get_db()->__find_c_and_lock(this);
|
|
for (__i_node** __p = __c->end_; __p != __c->beg_; )
|
|
{
|
|
--__p;
|
|
iterator* __i = static_cast<iterator*>((*__p)->__i_);
|
|
if (__i->__node_ == __cn)
|
|
{
|
|
(*__p)->__c_ = nullptr;
|
|
if (--__c->end_ != __p)
|
|
memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*));
|
|
}
|
|
}
|
|
__get_db()->unlock();
|
|
#endif
|
|
return __node_holder(__cn, _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());
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
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)
|
|
)
|
|
#else
|
|
_NOEXCEPT_(__is_nothrow_swappable<hasher>::value && __is_nothrow_swappable<key_equal>::value)
|
|
#endif
|
|
{
|
|
{
|
|
__node_pointer_pointer __npp = __bucket_list_.release();
|
|
__bucket_list_.reset(__u.__bucket_list_.release());
|
|
__u.__bucket_list_.reset(__npp);
|
|
}
|
|
_VSTD::swap(__bucket_list_.get_deleter().size(), __u.__bucket_list_.get_deleter().size());
|
|
__swap_allocator(__bucket_list_.get_deleter().__alloc(),
|
|
__u.__bucket_list_.get_deleter().__alloc());
|
|
__swap_allocator(__node_alloc(), __u.__node_alloc());
|
|
_VSTD::swap(__p1_.first().__next_, __u.__p1_.first().__next_);
|
|
__p2_.swap(__u.__p2_);
|
|
__p3_.swap(__u.__p3_);
|
|
if (size() > 0)
|
|
__bucket_list_[__constrain_hash(__p1_.first().__next_->__hash_, bucket_count())] =
|
|
static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__p1_.first()));
|
|
if (__u.size() > 0)
|
|
__u.__bucket_list_[__constrain_hash(__u.__p1_.first().__next_->__hash_, __u.bucket_count())] =
|
|
static_cast<__node_pointer>(pointer_traits<__node_base_pointer>::pointer_to(__u.__p1_.first()));
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
__get_db()->swap(this, &__u);
|
|
#endif
|
|
}
|
|
|
|
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(__n < bucket_count(),
|
|
"unordered container::bucket_size(n) called with n >= bucket_count()");
|
|
__node_const_pointer __np = __bucket_list_[__n];
|
|
size_type __bc = bucket_count();
|
|
size_type __r = 0;
|
|
if (__np != nullptr)
|
|
{
|
|
for (__np = __np->__next_; __np != nullptr &&
|
|
__constrain_hash(__np->__hash_, __bc) == __n;
|
|
__np = __np->__next_, ++__r)
|
|
;
|
|
}
|
|
return __r;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
|
|
swap(__hash_table<_Tp, _Hash, _Equal, _Alloc>& __x,
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>& __y)
|
|
_NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
|
|
{
|
|
__x.swap(__y);
|
|
}
|
|
|
|
#if _LIBCPP_DEBUG_LEVEL >= 2
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
bool
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__dereferenceable(const const_iterator* __i) const
|
|
{
|
|
return __i->__node_ != nullptr;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
bool
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__decrementable(const const_iterator*) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
bool
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__addable(const const_iterator*, ptrdiff_t) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
bool
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__subscriptable(const const_iterator*, ptrdiff_t) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
#endif // _LIBCPP_DEBUG_LEVEL >= 2
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP__HASH_TABLE
|