bc8d3f97eb
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
1762 lines
58 KiB
C++
1762 lines
58 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. 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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#pragma GCC system_header
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_LIBCPP_BEGIN_NAMESPACE_STD
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size_t __next_prime(size_t);
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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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typedef _NodePtr pointer;
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pointer __next_;
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__hash_node_base() : __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 pointer_traits<_VoidPtr>::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind<__hash_node<_Tp, _VoidPtr> >
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#else
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rebind<__hash_node<_Tp, _VoidPtr> >::other
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#endif
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>
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{
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typedef _Tp value_type;
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size_t __hash_;
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value_type __value_;
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};
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template <class, class, class, class> class __hash_table;
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template <class> class __hash_const_iterator;
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template <class> class __hash_map_iterator;
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template <class> class __hash_map_const_iterator;
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template <class, class, class, class, class> class unordered_map;
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template <class _NodePtr>
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class __hash_iterator
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{
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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 pointer_traits<__node_pointer>::element_type::value_type value_type;
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typedef typename pointer_traits<__node_pointer>::difference_type difference_type;
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typedef value_type& reference;
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typedef typename pointer_traits<__node_pointer>::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind<value_type>
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#else
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rebind<value_type>::other
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#endif
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pointer;
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__hash_iterator() {}
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reference operator*() const {return __node_->__value_;}
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pointer operator->() const {return addressof(__node_->__value_);}
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__hash_iterator& operator++()
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{
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__node_ = __node_->__next_;
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return *this;
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}
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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 bool operator==(const __hash_iterator& __x, const __hash_iterator& __y)
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{return __x.__node_ == __y.__node_;}
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friend bool operator!=(const __hash_iterator& __x, const __hash_iterator& __y)
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{return __x.__node_ != __y.__node_;}
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private:
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__hash_iterator(__node_pointer __node)
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: __node_(__node)
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{}
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template <class, class, class, class> friend class __hash_table;
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template <class> friend class __hash_const_iterator;
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template <class> friend class __hash_map_iterator;
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template <class, class, class, class, class> friend class unordered_map;
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template <class, class, class, class, class> friend class unordered_multimap;
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};
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template <class _ConstNodePtr>
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class __hash_const_iterator
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{
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typedef _ConstNodePtr __node_pointer;
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__node_pointer __node_;
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typedef typename remove_const<
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typename pointer_traits<__node_pointer>::element_type
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>::type __node;
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public:
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typedef forward_iterator_tag iterator_category;
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typedef typename __node::value_type value_type;
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typedef typename pointer_traits<__node_pointer>::difference_type difference_type;
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typedef const value_type& reference;
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typedef typename pointer_traits<__node_pointer>::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind<const value_type>
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#else
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rebind<const value_type>::other
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#endif
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pointer;
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typedef typename pointer_traits<__node_pointer>::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind<__node>
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#else
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rebind<__node>::other
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#endif
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__non_const_node_pointer;
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typedef __hash_iterator<__non_const_node_pointer> __non_const_iterator;
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__hash_const_iterator() {}
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__hash_const_iterator(const __non_const_iterator& __x)
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: __node_(__x.__node_)
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{}
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reference operator*() const {return __node_->__value_;}
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pointer operator->() const {return addressof(__node_->__value_);}
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__hash_const_iterator& operator++()
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{
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__node_ = __node_->__next_;
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return *this;
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}
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__hash_const_iterator operator++(int)
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{
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__hash_const_iterator __t(*this);
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++(*this);
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return __t;
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}
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friend bool operator==(const __hash_const_iterator& __x, const __hash_const_iterator& __y)
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{return __x.__node_ == __y.__node_;}
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friend bool operator!=(const __hash_const_iterator& __x, const __hash_const_iterator& __y)
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{return __x.__node_ != __y.__node_;}
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private:
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__hash_const_iterator(__node_pointer __node)
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: __node_(__node)
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{}
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template <class, class, class, class> friend class __hash_table;
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template <class> friend class __hash_map_const_iterator;
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template <class, class, class, class, class> friend class unordered_map;
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template <class, class, class, class, class> friend class unordered_multimap;
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};
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template <class> class __hash_const_local_iterator;
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template <class _NodePtr>
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class __hash_local_iterator
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{
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typedef _NodePtr __node_pointer;
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__node_pointer __node_;
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size_t __bucket_;
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size_t __bucket_count_;
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typedef pointer_traits<__node_pointer> __pointer_traits;
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public:
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typedef forward_iterator_tag iterator_category;
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typedef typename __pointer_traits::element_type::value_type value_type;
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typedef typename __pointer_traits::difference_type difference_type;
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typedef value_type& reference;
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typedef typename __pointer_traits::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind<value_type>
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#else
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rebind<value_type>::other
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#endif
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pointer;
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__hash_local_iterator() {}
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reference operator*() const {return __node_->__value_;}
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pointer operator->() const {return &__node_->__value_;}
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__hash_local_iterator& operator++()
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{
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__node_ = __node_->__next_;
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if (__node_ != nullptr && __node_->__hash_ % __bucket_count_ != __bucket_)
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__node_ = nullptr;
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return *this;
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}
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__hash_local_iterator operator++(int)
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{
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__hash_local_iterator __t(*this);
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++(*this);
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return __t;
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}
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friend bool operator==(const __hash_local_iterator& __x, const __hash_local_iterator& __y)
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{return __x.__node_ == __y.__node_;}
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friend bool operator!=(const __hash_local_iterator& __x, const __hash_local_iterator& __y)
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{return __x.__node_ != __y.__node_;}
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private:
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__hash_local_iterator(__node_pointer __node, size_t __bucket,
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size_t __bucket_count)
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: __node_(__node),
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__bucket_(__bucket),
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__bucket_count_(__bucket_count)
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{
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if (__node_ != nullptr)
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__node_ = __node_->__next_;
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}
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template <class, class, class, class> friend class __hash_table;
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template <class> friend class __hash_const_local_iterator;
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template <class> friend class __hash_map_iterator;
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};
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template <class _ConstNodePtr>
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class __hash_const_local_iterator
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{
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typedef _ConstNodePtr __node_pointer;
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__node_pointer __node_;
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size_t __bucket_;
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size_t __bucket_count_;
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typedef pointer_traits<__node_pointer> __pointer_traits;
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typedef typename __pointer_traits::element_type __node;
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typedef typename remove_const<__node>::type __non_const_node;
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typedef typename pointer_traits<__node_pointer>::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind<__non_const_node>
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#else
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rebind<__non_const_node>::other
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#endif
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__non_const_node_pointer;
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typedef __hash_local_iterator<__non_const_node_pointer>
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__non_const_iterator;
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public:
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typedef forward_iterator_tag iterator_category;
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typedef typename remove_const<
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typename __pointer_traits::element_type::value_type
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>::type value_type;
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typedef typename __pointer_traits::difference_type difference_type;
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typedef const value_type& reference;
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typedef typename __pointer_traits::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind<const value_type>
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#else
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rebind<const value_type>::other
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#endif
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pointer;
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__hash_const_local_iterator() {}
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__hash_const_local_iterator(const __non_const_iterator& __x)
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: __node_(__x.__node_),
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__bucket_(__x.__bucket_),
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__bucket_count_(__x.__bucket_count_)
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{}
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reference operator*() const {return __node_->__value_;}
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pointer operator->() const {return &__node_->__value_;}
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__hash_const_local_iterator& operator++()
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{
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__node_ = __node_->__next_;
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if (__node_ != nullptr && __node_->__hash_ % __bucket_count_ != __bucket_)
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__node_ = nullptr;
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return *this;
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}
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__hash_const_local_iterator operator++(int)
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{
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__hash_const_local_iterator __t(*this);
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++(*this);
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return __t;
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}
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friend bool operator==(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y)
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{return __x.__node_ == __y.__node_;}
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friend bool operator!=(const __hash_const_local_iterator& __x, const __hash_const_local_iterator& __y)
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{return __x.__node_ != __y.__node_;}
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private:
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__hash_const_local_iterator(__node_pointer __node, size_t __bucket,
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size_t __bucket_count)
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: __node_(__node),
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__bucket_(__bucket),
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__bucket_count_(__bucket_count)
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{
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if (__node_ != nullptr)
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__node_ = __node_->__next_;
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}
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template <class, class, class, class> friend class __hash_table;
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template <class> friend class __hash_map_const_iterator;
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};
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template <class _Alloc>
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class __bucket_list_deallocator
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{
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typedef _Alloc allocator_type;
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typedef allocator_traits<allocator_type> __alloc_traits;
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typedef typename __alloc_traits::size_type size_type;
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__compressed_pair<size_type, allocator_type> __data_;
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public:
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typedef typename __alloc_traits::pointer pointer;
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__bucket_list_deallocator()
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: __data_(0) {}
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__bucket_list_deallocator(const allocator_type& __a, size_type __size)
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: __data_(__size, __a) {}
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#ifdef _LIBCPP_MOVE
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__bucket_list_deallocator(__bucket_list_deallocator&& __x)
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: __data_(_STD::move(__x.__data_))
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{
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__x.size() = 0;
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}
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#endif
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size_type& size() {return __data_.first();}
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size_type size() const {return __data_.first();}
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allocator_type& __alloc() {return __data_.second();}
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const allocator_type& __alloc() const {return __data_.second();}
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void operator()(pointer __p)
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{
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__alloc_traits::deallocate(__alloc(), __p, size());
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}
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};
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template <class> class __hash_map_node_destructor;
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template <class _Alloc>
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class __hash_node_destructor
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{
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typedef _Alloc allocator_type;
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typedef allocator_traits<allocator_type> __alloc_traits;
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typedef typename __alloc_traits::value_type::value_type value_type;
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public:
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typedef typename __alloc_traits::pointer pointer;
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private:
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allocator_type& __na_;
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__hash_node_destructor& operator=(const __hash_node_destructor&);
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public:
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bool __value_constructed;
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explicit __hash_node_destructor(allocator_type& __na)
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: __na_(__na),
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__value_constructed(false)
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{}
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void operator()(pointer __p)
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{
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if (__value_constructed)
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__alloc_traits::destroy(__na_, addressof(__p->__value_));
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if (__p)
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__alloc_traits::deallocate(__na_, __p, 1);
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}
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template <class> friend class __hash_map_node_destructor;
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};
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template <class _Tp, class _Hash, class _Equal, class _Alloc>
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class __hash_table
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{
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public:
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typedef _Tp value_type;
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typedef _Hash hasher;
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typedef _Equal key_equal;
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typedef _Alloc allocator_type;
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private:
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typedef allocator_traits<allocator_type> __alloc_traits;
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public:
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef typename __alloc_traits::pointer pointer;
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typedef typename __alloc_traits::const_pointer const_pointer;
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typedef typename __alloc_traits::size_type size_type;
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typedef typename __alloc_traits::difference_type difference_type;
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public:
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// Create __node
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typedef __hash_node<value_type, typename __alloc_traits::void_pointer> __node;
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typedef typename __node::__first_node __first_node;
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typedef typename __alloc_traits::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind_alloc<__node>
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#else
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rebind_alloc<__node>::other
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#endif
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__node_allocator;
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typedef allocator_traits<__node_allocator> __node_traits;
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typedef typename __node_traits::pointer __node_pointer;
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typedef typename __node_traits::const_pointer __node_const_pointer;
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private:
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typedef typename __node_traits::template
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#ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
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rebind_alloc<__node_pointer>
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#else
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rebind_alloc<__node_pointer>::other
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#endif
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__pointer_allocator;
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typedef __bucket_list_deallocator<__pointer_allocator> __bucket_list_deleter;
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typedef unique_ptr<__node_pointer[], __bucket_list_deleter> __bucket_list;
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typedef allocator_traits<__pointer_allocator> __pointer_alloc_traits;
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typedef typename __bucket_list_deleter::pointer __node_pointer_pointer;
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// --- Member data begin ---
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__bucket_list __bucket_list_;
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__compressed_pair<__first_node, __node_allocator> __p1_;
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__compressed_pair<size_type, hasher> __p2_;
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__compressed_pair<float, key_equal> __p3_;
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// --- Member data end ---
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size_type& size() {return __p2_.first();}
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public:
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size_type size() const {return __p2_.first();}
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hasher& hash_function() {return __p2_.second();}
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const hasher& hash_function() const {return __p2_.second();}
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float& max_load_factor() {return __p3_.first();}
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float max_load_factor() const {return __p3_.first();}
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key_equal& key_eq() {return __p3_.second();}
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const key_equal& key_eq() const {return __p3_.second();}
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__node_allocator& __node_alloc() {return __p1_.second();}
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const __node_allocator& __node_alloc() const {return __p1_.second();}
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public:
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typedef __hash_iterator<__node_pointer> iterator;
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typedef __hash_const_iterator<__node_const_pointer> const_iterator;
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typedef __hash_local_iterator<__node_pointer> local_iterator;
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typedef __hash_const_local_iterator<__node_const_pointer> const_local_iterator;
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__hash_table();
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__hash_table(const hasher& __hf, const key_equal& __eql);
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__hash_table(const hasher& __hf, const key_equal& __eql,
|
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const allocator_type& __a);
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explicit __hash_table(const allocator_type& __a);
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__hash_table(const __hash_table& __u);
|
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__hash_table(const __hash_table& __u, const allocator_type& __a);
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#ifdef _LIBCPP_MOVE
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__hash_table(__hash_table&& __u);
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__hash_table(__hash_table&& __u, const allocator_type& __a);
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#endif
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~__hash_table();
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__hash_table& operator=(const __hash_table& __u);
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#ifdef _LIBCPP_MOVE
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__hash_table& operator=(__hash_table&& __u);
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|
#endif
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|
template <class _InputIterator>
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|
void __assign_unique(_InputIterator __first, _InputIterator __last);
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template <class _InputIterator>
|
|
void __assign_multi(_InputIterator __first, _InputIterator __last);
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|
|
|
size_type max_size() const
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|
{
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return allocator_traits<__pointer_allocator>::max_size(
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__bucket_list_.get_deleter().__alloc());
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}
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|
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pair<iterator, bool> __node_insert_unique(__node_pointer __nd);
|
|
iterator __node_insert_multi(__node_pointer __nd);
|
|
iterator __node_insert_multi(const_iterator __p,
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__node_pointer __nd);
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|
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#ifdef _LIBCPP_MOVE
|
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template <class... _Args>
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pair<iterator, bool> __emplace_unique(_Args&&... __args);
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template <class... _Args>
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iterator __emplace_multi(_Args&&... __args);
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template <class... _Args>
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iterator __emplace_hint_multi(const_iterator __p, _Args&&... __args);
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#endif
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|
|
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pair<iterator, bool> __insert_unique(const value_type& __x);
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|
|
#ifdef _LIBCPP_MOVE
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template <class _P>
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pair<iterator, bool> __insert_unique(_P&& __x);
|
|
#endif
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|
|
|
#ifdef _LIBCPP_MOVE
|
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template <class _P>
|
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iterator __insert_multi(_P&& __x);
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template <class _P>
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|
iterator __insert_multi(const_iterator __p, _P&& __x);
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|
#else
|
|
iterator __insert_multi(const value_type& __x);
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|
iterator __insert_multi(const_iterator __p, const value_type& __x);
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|
#endif
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|
|
|
void clear();
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|
void rehash(size_type __n);
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void reserve(size_type __n)
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{rehash(static_cast<size_type>(ceil(__n / max_load_factor())));}
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size_type bucket_count() const
|
|
{
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|
return __bucket_list_.get_deleter().size();
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|
}
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|
|
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iterator begin();
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iterator end();
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|
const_iterator begin() const;
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const_iterator end() const;
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|
|
template <class _Key>
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size_type bucket(const _Key& __k) const
|
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{return hash_function()(__k) % bucket_count();}
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|
|
|
template <class _Key>
|
|
iterator find(const _Key& __x);
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|
template <class _Key>
|
|
const_iterator find(const _Key& __x) const;
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|
|
|
typedef __hash_node_destructor<__node_allocator> _D;
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typedef unique_ptr<__node, _D> __node_holder;
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|
|
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iterator erase(const_iterator __p);
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|
iterator erase(const_iterator __first, const_iterator __last);
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|
template <class _Key>
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|
size_type __erase_unique(const _Key& __k);
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|
template <class _Key>
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|
size_type __erase_multi(const _Key& __k);
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|
__node_holder remove(const_iterator __p);
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|
|
|
template <class _Key>
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|
size_type __count_unique(const _Key& __k) const;
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|
template <class _Key>
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size_type __count_multi(const _Key& __k) const;
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|
|
|
template <class _Key>
|
|
pair<iterator, iterator>
|
|
__equal_range_unique(const _Key& __k);
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|
template <class _Key>
|
|
pair<const_iterator, const_iterator>
|
|
__equal_range_unique(const _Key& __k) const;
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|
|
|
template <class _Key>
|
|
pair<iterator, iterator>
|
|
__equal_range_multi(const _Key& __k);
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|
template <class _Key>
|
|
pair<const_iterator, const_iterator>
|
|
__equal_range_multi(const _Key& __k) const;
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|
|
|
void swap(__hash_table& __u);
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|
|
|
size_type max_bucket_count() const
|
|
{return __bucket_list_.get_deleter().__alloc().max_size();}
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|
size_type bucket_size(size_type __n) const;
|
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float load_factor() const
|
|
{
|
|
size_type __bc = bucket_count();
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|
return __bc != 0 ? (float)size() / __bc : 0.f;
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}
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void max_load_factor(float __mlf)
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{max_load_factor() = _STD::max(__mlf, load_factor());}
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|
|
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local_iterator begin(size_type __n)
|
|
{return local_iterator(__bucket_list_[__n], __n, bucket_count());}
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|
local_iterator end(size_type __n)
|
|
{return local_iterator(nullptr, __n, bucket_count());}
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|
const_local_iterator cbegin(size_type __n) const
|
|
{return const_local_iterator(__bucket_list_[__n], __n, bucket_count());}
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|
const_local_iterator cend(size_type __n) const
|
|
{return const_local_iterator(nullptr, __n, bucket_count());}
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|
private:
|
|
void __rehash(size_type __n);
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|
|
|
#ifdef _LIBCPP_MOVE
|
|
template <class ..._Args>
|
|
__node_holder __construct_node(_Args&& ...__args);
|
|
__node_holder __construct_node(value_type&& __v, size_t __hash);
|
|
#else
|
|
__node_holder __construct_node(const value_type& __v);
|
|
#endif
|
|
__node_holder __construct_node(const value_type& __v, size_t __hash);
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|
|
|
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);
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|
void __copy_assign_alloc(const __hash_table& __u, false_type) {}
|
|
|
|
void __move_assign(__hash_table& __u, false_type);
|
|
void __move_assign(__hash_table& __u, true_type);
|
|
void __move_assign_alloc(__hash_table& __u)
|
|
{__move_assign_alloc(__u, integral_constant<bool,
|
|
__node_traits::propagate_on_container_move_assignment::value>());}
|
|
void __move_assign_alloc(__hash_table& __u, true_type)
|
|
{
|
|
__bucket_list_.get_deleter().__alloc() =
|
|
_STD::move(__u.__bucket_list_.get_deleter().__alloc());
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|
__node_alloc() = _STD::move(__u.__node_alloc());
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|
}
|
|
void __move_assign_alloc(__hash_table&, false_type) {}
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|
|
|
template <class _A>
|
|
static
|
|
void
|
|
__swap_alloc(_A& __x, _A& __y)
|
|
{
|
|
__swap_alloc(__x, __y,
|
|
integral_constant<bool,
|
|
allocator_traits<_A>::propagate_on_container_swap::value
|
|
>());
|
|
}
|
|
|
|
template <class _A>
|
|
static
|
|
void
|
|
__swap_alloc(_A& __x, _A& __y, true_type)
|
|
{
|
|
using _STD::swap;
|
|
swap(__x, __y);
|
|
}
|
|
|
|
template <class _A>
|
|
static
|
|
void
|
|
__swap_alloc(_A& __x, _A& __y, false_type) {}
|
|
|
|
void __deallocate(__node_pointer __np);
|
|
__node_pointer __detach();
|
|
};
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|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
inline
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table()
|
|
: __p2_(0),
|
|
__p3_(1.0f)
|
|
{
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|
}
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|
|
|
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)
|
|
{
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|
}
|
|
|
|
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_)
|
|
{
|
|
}
|
|
|
|
#ifdef _LIBCPP_MOVE
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__hash_table(__hash_table&& __u)
|
|
: __bucket_list_(_STD::move(__u.__bucket_list_)),
|
|
__p1_(_STD::move(__u.__p1_)),
|
|
__p2_(_STD::move(__u.__p2_)),
|
|
__p3_(_STD::move(__u.__p3_))
|
|
{
|
|
if (size() > 0)
|
|
{
|
|
__bucket_list_[__p1_.first().__next_->__hash_ % bucket_count()] =
|
|
static_cast<__node_pointer>(addressof(__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, _STD::move(__u.hash_function())),
|
|
__p3_(_STD::move(__u.__p3_))
|
|
{
|
|
if (__a == allocator_type(__u.__node_alloc()))
|
|
{
|
|
__bucket_list_.reset(__u.__bucket_list_.release());
|
|
__bucket_list_.get_deleter().size() = __u.__bucket_list_.get_deleter().size();
|
|
__u.__bucket_list_.get_deleter().size() = 0;
|
|
if (__u.size() > 0)
|
|
{
|
|
__p1_.first().__next_ = __u.__p1_.first().__next_;
|
|
__u.__p1_.first().__next_ = nullptr;
|
|
__bucket_list_[__p1_.first().__next_->__hash_ % bucket_count()] =
|
|
static_cast<__node_pointer>(addressof(__p1_.first()));
|
|
size() = __u.size();
|
|
__u.size() = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::~__hash_table()
|
|
{
|
|
__deallocate(__p1_.first().__next_);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__copy_assign_alloc(
|
|
const __hash_table& __u, true_type)
|
|
{
|
|
if (__node_alloc() != __u.__node_alloc())
|
|
{
|
|
clear();
|
|
__bucket_list_.reset();
|
|
__bucket_list_.get_deleter().size() = 0;
|
|
}
|
|
__bucket_list_.get_deleter().__alloc() = __u.__bucket_list_.get_deleter().__alloc();
|
|
__node_alloc() = __u.__node_alloc();
|
|
}
|
|
|
|
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)
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
while (__np != nullptr)
|
|
{
|
|
__node_pointer __next = __np->__next_;
|
|
__node_traits::destroy(__na, addressof(__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()
|
|
{
|
|
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;
|
|
}
|
|
|
|
#ifdef _LIBCPP_MOVE
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__move_assign(
|
|
__hash_table& __u, true_type)
|
|
{
|
|
clear();
|
|
__bucket_list_.reset(__u.__bucket_list_.release());
|
|
__bucket_list_.get_deleter().size() = __u.__bucket_list_.get_deleter().size();
|
|
__u.__bucket_list_.get_deleter().size() = 0;
|
|
__move_assign_alloc(__u);
|
|
size() = __u.size();
|
|
hash_function() = _STD::move(__u.hash_function());
|
|
max_load_factor() = __u.max_load_factor();
|
|
key_eq() = _STD::move(__u.key_eq());
|
|
__p1_.first().__next_ = __u.__p1_.first().__next_;
|
|
if (size() > 0)
|
|
{
|
|
__bucket_list_[__p1_.first().__next_->__hash_ % bucket_count()] =
|
|
static_cast<__node_pointer>(addressof(__p1_.first()));
|
|
__u.__p1_.first().__next_ = nullptr;
|
|
__u.size() = 0;
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__move_assign(
|
|
__hash_table& __u, false_type)
|
|
{
|
|
if (__node_alloc() == __u.__node_alloc())
|
|
__move_assign(__u, true_type());
|
|
else
|
|
{
|
|
hash_function() = _STD::move(__u.hash_function());
|
|
key_eq() = _STD::move(__u.key_eq());
|
|
max_load_factor() = __u.max_load_factor();
|
|
if (bucket_count() != 0)
|
|
{
|
|
__node_pointer __cache = __detach();
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
try
|
|
{
|
|
#endif
|
|
const_iterator __i = __u.begin();
|
|
while (__cache != nullptr && __u.size() != 0)
|
|
{
|
|
__cache->__value_ = _STD::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
|
|
__deallocate(__cache);
|
|
}
|
|
const_iterator __i = __u.begin();
|
|
while (__u.size() != 0)
|
|
{
|
|
__node_holder __h =
|
|
__construct_node(_STD::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)
|
|
{
|
|
__move_assign(__u, integral_constant<bool,
|
|
__node_traits::propagate_on_container_move_assignment::value>());
|
|
return *this;
|
|
}
|
|
|
|
#endif
|
|
|
|
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)
|
|
{
|
|
if (bucket_count() != 0)
|
|
{
|
|
__node_pointer __cache = __detach();
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
try
|
|
{
|
|
#endif
|
|
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
|
|
__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)
|
|
{
|
|
if (bucket_count() != 0)
|
|
{
|
|
__node_pointer __cache = __detach();
|
|
#ifndef _LIBCPP_NO_EXCEPTIONS
|
|
try
|
|
{
|
|
#endif
|
|
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
|
|
__deallocate(__cache);
|
|
}
|
|
for (; __first != __last; ++__first)
|
|
__insert_multi(*__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()
|
|
{
|
|
return iterator(__p1_.first().__next_);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
inline
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::end()
|
|
{
|
|
return iterator(nullptr);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
inline
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::begin() const
|
|
{
|
|
return const_iterator(__p1_.first().__next_);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
inline
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::const_iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::end() const
|
|
{
|
|
return const_iterator(nullptr);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::clear()
|
|
{
|
|
if (size() > 0)
|
|
{
|
|
__deallocate(__p1_.first().__next_);
|
|
__p1_.first().__next_ = nullptr;
|
|
size_type __bc = bucket_count();
|
|
for (size_type __i; __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 = __nd->__hash_ % __bc;
|
|
__ndptr = __bucket_list_[__chash];
|
|
if (__ndptr != nullptr)
|
|
{
|
|
for (__ndptr = __ndptr->__next_; __ndptr != nullptr &&
|
|
__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(_STD::max<size_type>(2 * __bc + 1,
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
__chash = __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>(addressof(__p1_.first()));
|
|
__nd->__next_ = __pn->__next_;
|
|
__pn->__next_ = __nd;
|
|
// fix up __bucket_list_
|
|
__bucket_list_[__chash] = __pn;
|
|
if (__nd->__next_ != nullptr)
|
|
__bucket_list_[__nd->__next_->__hash_ % __bc] = __nd;
|
|
}
|
|
else
|
|
{
|
|
__nd->__next_ = __pn->__next_;
|
|
__pn->__next_ = __nd;
|
|
}
|
|
__ndptr = __nd;
|
|
// increment size
|
|
++size();
|
|
__inserted = true;
|
|
}
|
|
__done:
|
|
return pair<iterator, bool>(iterator(__ndptr), __inserted);
|
|
}
|
|
|
|
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(_STD::max<size_type>(2 * __bc + 1,
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
}
|
|
size_t __chash = __cp->__hash_ % __bc;
|
|
__node_pointer __pn = __bucket_list_[__chash];
|
|
if (__pn == nullptr)
|
|
{
|
|
__pn = static_cast<__node_pointer>(addressof(__p1_.first()));
|
|
__cp->__next_ = __pn->__next_;
|
|
__pn->__next_ = __cp;
|
|
// fix up __bucket_list_
|
|
__bucket_list_[__chash] = __pn;
|
|
if (__cp->__next_ != nullptr)
|
|
__bucket_list_[__cp->__next_->__hash_ % __bc] = __cp;
|
|
}
|
|
else
|
|
{
|
|
for (bool __found = false; __pn->__next_ != nullptr &&
|
|
__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 = __cp->__next_->__hash_ % __bc;
|
|
if (__nhash != __chash)
|
|
__bucket_list_[__nhash] = __cp;
|
|
}
|
|
}
|
|
++size();
|
|
return iterator(__cp);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_insert_multi(
|
|
const_iterator __p, __node_pointer __cp)
|
|
{
|
|
if (__p != end() && key_eq()(*__p, __cp->__value_))
|
|
{
|
|
__node_pointer __np = const_cast<__node_pointer>(__p.__node_);
|
|
__cp->__hash_ = __np->__hash_;
|
|
size_type __bc = bucket_count();
|
|
if (size()+1 > __bc * max_load_factor() || __bc == 0)
|
|
{
|
|
rehash(_STD::max<size_type>(2 * __bc + 1,
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
}
|
|
size_t __chash = __cp->__hash_ % __bc;
|
|
__node_pointer __pp = __bucket_list_[__chash];
|
|
while (__pp->__next_ != __np)
|
|
__pp = __pp->__next_;
|
|
__cp->__next_ = __np;
|
|
__pp->__next_ = __cp;
|
|
++size();
|
|
return iterator(__cp);
|
|
}
|
|
return __node_insert_multi(__cp);
|
|
}
|
|
|
|
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>::__insert_unique(const value_type& __x)
|
|
{
|
|
size_t __hash = hash_function()(__x);
|
|
size_type __bc = bucket_count();
|
|
bool __inserted = false;
|
|
__node_pointer __nd;
|
|
size_t __chash;
|
|
if (__bc != 0)
|
|
{
|
|
__chash = __hash % __bc;
|
|
__nd = __bucket_list_[__chash];
|
|
if (__nd != nullptr)
|
|
{
|
|
for (__nd = __nd->__next_; __nd != nullptr &&
|
|
__nd->__hash_ % __bc == __chash;
|
|
__nd = __nd->__next_)
|
|
{
|
|
if (key_eq()(__nd->__value_, __x))
|
|
goto __done;
|
|
}
|
|
}
|
|
}
|
|
{
|
|
__node_holder __h = __construct_node(__x, __hash);
|
|
if (size()+1 > __bc * max_load_factor() || __bc == 0)
|
|
{
|
|
rehash(_STD::max<size_type>(2 * __bc + 1,
|
|
size_type(ceil(float(size() + 1) / max_load_factor()))));
|
|
__bc = bucket_count();
|
|
__chash = __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>(addressof(__p1_.first()));
|
|
__h->__next_ = __pn->__next_;
|
|
__pn->__next_ = __h.get();
|
|
// fix up __bucket_list_
|
|
__bucket_list_[__chash] = __pn;
|
|
if (__h->__next_ != nullptr)
|
|
__bucket_list_[__h->__next_->__hash_ % __bc] = __h.get();
|
|
}
|
|
else
|
|
{
|
|
__h->__next_ = __pn->__next_;
|
|
__pn->__next_ = __h.get();
|
|
}
|
|
__nd = __h.release();
|
|
// increment size
|
|
++size();
|
|
__inserted = true;
|
|
}
|
|
__done:
|
|
return pair<iterator, bool>(iterator(__nd), __inserted);
|
|
}
|
|
|
|
#ifdef _LIBCPP_MOVE
|
|
|
|
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(_STD::forward<_Args>(__args)...);
|
|
pair<iterator, bool> __r = __node_insert_unique(__h.get());
|
|
if (__r.second)
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class... _Args>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_multi(_Args&&... __args)
|
|
{
|
|
__node_holder __h = __construct_node(_STD::forward<_Args>(__args)...);
|
|
iterator __r = __node_insert_multi(__h.get());
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class... _Args>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__emplace_hint_multi(
|
|
const_iterator __p, _Args&&... __args)
|
|
{
|
|
__node_holder __h = __construct_node(_STD::forward<_Args>(__args)...);
|
|
iterator __r = __node_insert_multi(__p, __h.get());
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class _P>
|
|
pair<typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator, bool>
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__insert_unique(_P&& __x)
|
|
{
|
|
__node_holder __h = __construct_node(_STD::forward<_P>(__x));
|
|
pair<iterator, bool> __r = __node_insert_unique(__h.get());
|
|
if (__r.second)
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef _LIBCPP_MOVE
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class _P>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__insert_multi(_P&& __x)
|
|
{
|
|
__node_holder __h = __construct_node(_STD::forward<_P>(__x));
|
|
iterator __r = __node_insert_multi(__h.get());
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class _P>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__insert_multi(const_iterator __p,
|
|
_P&& __x)
|
|
{
|
|
__node_holder __h = __construct_node(_STD::forward<_P>(__x));
|
|
iterator __r = __node_insert_multi(__p, __h.get());
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
#else
|
|
|
|
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 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 value_type& __x)
|
|
{
|
|
__node_holder __h = __construct_node(__x);
|
|
iterator __r = __node_insert_multi(__p, __h.get());
|
|
__h.release();
|
|
return __r;
|
|
}
|
|
|
|
#endif
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
void
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::rehash(size_type __n)
|
|
{
|
|
__n = __next_prime(_STD::max<size_type>(__n, size() > 0));
|
|
size_type __bc = bucket_count();
|
|
if (__n > __bc)
|
|
__rehash(__n);
|
|
else
|
|
{
|
|
__n = _STD::max<size_type>
|
|
(
|
|
__n,
|
|
__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)
|
|
{
|
|
__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>(addressof(__p1_.first())));
|
|
__node_pointer __cp = __pp->__next_;
|
|
if (__cp != nullptr)
|
|
{
|
|
size_type __chash = __cp->__hash_ % __nbc;
|
|
__bucket_list_[__chash] = __pp;
|
|
size_type __phash = __chash;
|
|
for (__pp = __cp, __cp = __cp->__next_; __cp != nullptr;
|
|
__cp = __pp->__next_)
|
|
{
|
|
__chash = __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 = __hash % __bc;
|
|
__node_pointer __nd = __bucket_list_[__chash];
|
|
if (__nd != nullptr)
|
|
{
|
|
for (__nd = __nd->__next_; __nd != nullptr &&
|
|
__nd->__hash_ % __bc == __chash;
|
|
__nd = __nd->__next_)
|
|
{
|
|
if (key_eq()(__nd->__value_, __k))
|
|
return iterator(__nd);
|
|
}
|
|
}
|
|
}
|
|
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 = __hash % __bc;
|
|
__node_const_pointer __nd = __bucket_list_[__chash];
|
|
if (__nd != nullptr)
|
|
{
|
|
for (__nd = __nd->__next_; __nd != nullptr &&
|
|
__nd->__hash_ % __bc == __chash;
|
|
__nd = __nd->__next_)
|
|
{
|
|
if (key_eq()(__nd->__value_, __k))
|
|
return const_iterator(__nd);
|
|
}
|
|
}
|
|
|
|
}
|
|
return end();
|
|
}
|
|
|
|
#ifdef _LIBCPP_MOVE
|
|
|
|
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)
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
__node_holder __h(__node_traits::allocate(__na, 1), _D(__na));
|
|
__node_traits::construct(__na, addressof(__h->__value_), _STD::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>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::__node_holder
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__construct_node(value_type&& __v,
|
|
size_t __hash)
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
__node_holder __h(__node_traits::allocate(__na, 1), _D(__na));
|
|
__node_traits::construct(__na, addressof(__h->__value_), _STD::move(__v));
|
|
__h.get_deleter().__value_constructed = true;
|
|
__h->__hash_ = __hash;
|
|
__h->__next_ = nullptr;
|
|
return _STD::move(__h);
|
|
}
|
|
|
|
#else
|
|
|
|
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 value_type& __v)
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
__node_holder __h(__node_traits::allocate(__na, 1), _D(__na));
|
|
__node_traits::construct(__na, addressof(__h->__value_), __v);
|
|
__h.get_deleter().__value_constructed = true;
|
|
__h->__hash_ = hash_function()(__h->__value_);
|
|
__h->__next_ = nullptr;
|
|
return _STD::move(__h);
|
|
}
|
|
|
|
#endif
|
|
|
|
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 value_type& __v,
|
|
size_t __hash)
|
|
{
|
|
__node_allocator& __na = __node_alloc();
|
|
__node_holder __h(__node_traits::allocate(__na, 1), _D(__na));
|
|
__node_traits::construct(__na, addressof(__h->__value_), __v);
|
|
__h.get_deleter().__value_constructed = true;
|
|
__h->__hash_ = __hash;
|
|
__h->__next_ = nullptr;
|
|
return _STD::move(__h);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::erase(const_iterator __p)
|
|
{
|
|
__node_pointer __np = const_cast<__node_pointer>(__p.__node_);
|
|
iterator __r(__np);
|
|
++__r;
|
|
remove(__p);
|
|
return __r;
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::iterator
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::erase(const_iterator __first,
|
|
const_iterator __last)
|
|
{
|
|
for (const_iterator __p = __first; __first != __last; __p = __first)
|
|
{
|
|
++__first;
|
|
erase(__p);
|
|
}
|
|
__node_pointer __np = const_cast<__node_pointer>(__last.__node_);
|
|
return iterator (__np);
|
|
}
|
|
|
|
template <class _Tp, class _Hash, class _Equal, class _Alloc>
|
|
template <class _Key>
|
|
typename __hash_table<_Tp, _Hash, _Equal, _Alloc>::size_type
|
|
__hash_table<_Tp, _Hash, _Equal, _Alloc>::__erase_unique(const _Key& __k)
|
|
{
|
|
iterator __i = find(__k);
|
|
if (__i == end())
|
|
return 0;
|
|
erase(__i);
|
|
return 1;
|
|
}
|
|
|
|
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)
|
|
{
|
|
// current node
|
|
__node_pointer __cn = const_cast<__node_pointer>(__p.__node_);
|
|
size_type __bc = bucket_count();
|
|
size_t __chash = __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 == addressof(__p1_.first()) || __pn->__hash_ % __bc != __chash)
|
|
{
|
|
if (__cn->__next_ == nullptr || __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 = __cn->__next_->__hash_ % __bc;
|
|
if (__nhash != __chash)
|
|
__bucket_list_[__nhash] = __pn;
|
|
}
|
|
// remove __cn
|
|
__pn->__next_ = __cn->__next_;
|
|
__cn->__next_ = nullptr;
|
|
--size();
|
|
return __node_holder(__cn, _D(__node_alloc()));
|
|
}
|
|
|
|
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)
|
|
{
|
|
{
|
|
__node_pointer_pointer __npp = __bucket_list_.release();
|
|
__bucket_list_.reset(__u.__bucket_list_.release());
|
|
__u.__bucket_list_.reset(__npp);
|
|
}
|
|
_STD::swap(__bucket_list_.get_deleter().size(), __u.__bucket_list_.get_deleter().size());
|
|
__swap_alloc(__bucket_list_.get_deleter().__alloc(),
|
|
__u.__bucket_list_.get_deleter().__alloc());
|
|
__swap_alloc(__node_alloc(), __u.__node_alloc());
|
|
_STD::swap(__p1_.first().__next_, __u.__p1_.first().__next_);
|
|
__p2_.swap(__u.__p2_);
|
|
__p3_.swap(__u.__p3_);
|
|
if (size() > 0)
|
|
__bucket_list_[__p1_.first().__next_->__hash_ % bucket_count()] =
|
|
static_cast<__node_pointer>(addressof(__p1_.first()));
|
|
if (__u.size() > 0)
|
|
__u.__bucket_list_[__u.__p1_.first().__next_->__hash_ % __u.bucket_count()] =
|
|
static_cast<__node_pointer>(addressof(__u.__p1_.first()));
|
|
}
|
|
|
|
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
|
|
{
|
|
__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 &&
|
|
__np->__hash_ % __bc == __n;
|
|
__np = __np->__next_, ++__r)
|
|
;
|
|
}
|
|
return __r;
|
|
}
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP__HASH_TABLE
|