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https://github.com/llvm-mirror/libcxx.git
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7c3769df62
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@351648 91177308-0d34-0410-b5e6-96231b3b80d8
663 lines
24 KiB
C++
663 lines
24 KiB
C++
// -*- C++ -*-
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//===------------------------- hash_set ------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_HASH_SET
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#define _LIBCPP_HASH_SET
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/*
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hash_set synopsis
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namespace __gnu_cxx
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{
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template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
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class Alloc = allocator<Value>>
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class hash_set
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{
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public:
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// types
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typedef Value key_type;
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typedef key_type value_type;
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typedef Hash hasher;
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typedef Pred key_equal;
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typedef Alloc allocator_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef typename allocator_traits<allocator_type>::pointer pointer;
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typedef typename allocator_traits<allocator_type>::const_pointer const_pointer;
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typedef typename allocator_traits<allocator_type>::size_type size_type;
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typedef typename allocator_traits<allocator_type>::difference_type difference_type;
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typedef /unspecified/ iterator;
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typedef /unspecified/ const_iterator;
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explicit hash_set(size_type n = 193, const hasher& hf = hasher(),
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const key_equal& eql = key_equal(),
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const allocator_type& a = allocator_type());
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template <class InputIterator>
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hash_set(InputIterator f, InputIterator l,
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size_type n = 193, const hasher& hf = hasher(),
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const key_equal& eql = key_equal(),
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const allocator_type& a = allocator_type());
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hash_set(const hash_set&);
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~hash_set();
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hash_set& operator=(const hash_set&);
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allocator_type get_allocator() const;
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bool empty() const;
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size_type size() const;
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size_type max_size() const;
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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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pair<iterator, bool> insert(const value_type& obj);
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template <class InputIterator>
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void insert(InputIterator first, InputIterator last);
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void erase(const_iterator position);
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size_type erase(const key_type& k);
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void erase(const_iterator first, const_iterator last);
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void clear();
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void swap(hash_set&);
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hasher hash_funct() const;
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key_equal key_eq() const;
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iterator find(const key_type& k);
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const_iterator find(const key_type& k) const;
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size_type count(const key_type& k) const;
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pair<iterator, iterator> equal_range(const key_type& k);
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pair<const_iterator, const_iterator> equal_range(const key_type& k) const;
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size_type bucket_count() const;
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size_type max_bucket_count() const;
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size_type elems_in_bucket(size_type n) const;
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void resize(size_type n);
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};
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template <class Value, class Hash, class Pred, class Alloc>
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void swap(hash_set<Value, Hash, Pred, Alloc>& x,
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hash_set<Value, Hash, Pred, Alloc>& y);
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template <class Value, class Hash, class Pred, class Alloc>
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bool
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operator==(const hash_set<Value, Hash, Pred, Alloc>& x,
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const hash_set<Value, Hash, Pred, Alloc>& y);
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template <class Value, class Hash, class Pred, class Alloc>
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bool
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operator!=(const hash_set<Value, Hash, Pred, Alloc>& x,
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const hash_set<Value, Hash, Pred, Alloc>& y);
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template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
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class Alloc = allocator<Value>>
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class hash_multiset
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{
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public:
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// types
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typedef Value key_type;
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typedef key_type value_type;
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typedef Hash hasher;
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typedef Pred key_equal;
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typedef Alloc allocator_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef typename allocator_traits<allocator_type>::pointer pointer;
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typedef typename allocator_traits<allocator_type>::const_pointer const_pointer;
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typedef typename allocator_traits<allocator_type>::size_type size_type;
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typedef typename allocator_traits<allocator_type>::difference_type difference_type;
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typedef /unspecified/ iterator;
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typedef /unspecified/ const_iterator;
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explicit hash_multiset(size_type n = 193, const hasher& hf = hasher(),
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const key_equal& eql = key_equal(),
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const allocator_type& a = allocator_type());
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template <class InputIterator>
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hash_multiset(InputIterator f, InputIterator l,
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size_type n = 193, const hasher& hf = hasher(),
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const key_equal& eql = key_equal(),
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const allocator_type& a = allocator_type());
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hash_multiset(const hash_multiset&);
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~hash_multiset();
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hash_multiset& operator=(const hash_multiset&);
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allocator_type get_allocator() const;
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bool empty() const;
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size_type size() const;
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size_type max_size() const;
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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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iterator insert(const value_type& obj);
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template <class InputIterator>
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void insert(InputIterator first, InputIterator last);
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void erase(const_iterator position);
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size_type erase(const key_type& k);
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void erase(const_iterator first, const_iterator last);
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void clear();
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void swap(hash_multiset&);
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hasher hash_funct() const;
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key_equal key_eq() const;
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iterator find(const key_type& k);
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const_iterator find(const key_type& k) const;
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size_type count(const key_type& k) const;
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pair<iterator, iterator> equal_range(const key_type& k);
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pair<const_iterator, const_iterator> equal_range(const key_type& k) const;
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size_type bucket_count() const;
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size_type max_bucket_count() const;
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size_type elems_in_bucket(size_type n) const;
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void resize(size_type n);
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};
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template <class Value, class Hash, class Pred, class Alloc>
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void swap(hash_multiset<Value, Hash, Pred, Alloc>& x,
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hash_multiset<Value, Hash, Pred, Alloc>& y);
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template <class Value, class Hash, class Pred, class Alloc>
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bool
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operator==(const hash_multiset<Value, Hash, Pred, Alloc>& x,
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const hash_multiset<Value, Hash, Pred, Alloc>& y);
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template <class Value, class Hash, class Pred, class Alloc>
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bool
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operator!=(const hash_multiset<Value, Hash, Pred, Alloc>& x,
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const hash_multiset<Value, Hash, Pred, Alloc>& y);
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} // __gnu_cxx
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*/
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#include <__config>
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#include <__hash_table>
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#include <functional>
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#include <ext/__hash>
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#if __DEPRECATED
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#if defined(_LIBCPP_WARNING)
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_LIBCPP_WARNING("Use of the header <ext/hash_set> is deprecated. Migrate to <unordered_set>")
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#else
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# warning Use of the header <ext/hash_set> is deprecated. Migrate to <unordered_set>
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#endif
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#endif
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namespace __gnu_cxx {
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using namespace std;
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template <class _Value, class _Hash = hash<_Value>, class _Pred = equal_to<_Value>,
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class _Alloc = allocator<_Value> >
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class _LIBCPP_TEMPLATE_VIS hash_set
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{
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public:
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// types
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typedef _Value key_type;
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typedef key_type value_type;
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typedef _Hash hasher;
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typedef _Pred key_equal;
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typedef _Alloc allocator_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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private:
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typedef __hash_table<value_type, hasher, key_equal, allocator_type> __table;
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__table __table_;
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public:
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typedef typename __table::pointer pointer;
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typedef typename __table::const_pointer const_pointer;
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typedef typename __table::size_type size_type;
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typedef typename __table::difference_type difference_type;
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typedef typename __table::const_iterator iterator;
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typedef typename __table::const_iterator const_iterator;
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_LIBCPP_INLINE_VISIBILITY
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hash_set() {__table_.rehash(193);}
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explicit hash_set(size_type __n, const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal());
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hash_set(size_type __n, const hasher& __hf, const key_equal& __eql,
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const allocator_type& __a);
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template <class _InputIterator>
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hash_set(_InputIterator __first, _InputIterator __last);
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template <class _InputIterator>
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hash_set(_InputIterator __first, _InputIterator __last,
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size_type __n, const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal());
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template <class _InputIterator>
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hash_set(_InputIterator __first, _InputIterator __last,
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size_type __n, const hasher& __hf, const key_equal& __eql,
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const allocator_type& __a);
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hash_set(const hash_set& __u);
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_LIBCPP_INLINE_VISIBILITY
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allocator_type get_allocator() const
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{return allocator_type(__table_.__node_alloc());}
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_LIBCPP_INLINE_VISIBILITY
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bool empty() const {return __table_.size() == 0;}
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_LIBCPP_INLINE_VISIBILITY
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size_type size() const {return __table_.size();}
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_LIBCPP_INLINE_VISIBILITY
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size_type max_size() const {return __table_.max_size();}
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_LIBCPP_INLINE_VISIBILITY
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iterator begin() {return __table_.begin();}
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_LIBCPP_INLINE_VISIBILITY
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iterator end() {return __table_.end();}
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_LIBCPP_INLINE_VISIBILITY
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const_iterator begin() const {return __table_.begin();}
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_LIBCPP_INLINE_VISIBILITY
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const_iterator end() const {return __table_.end();}
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_LIBCPP_INLINE_VISIBILITY
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pair<iterator, bool> insert(const value_type& __x)
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{return __table_.__insert_unique(__x);}
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_LIBCPP_INLINE_VISIBILITY
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iterator insert(const_iterator, const value_type& __x) {return insert(__x).first;}
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template <class _InputIterator>
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_LIBCPP_INLINE_VISIBILITY
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void insert(_InputIterator __first, _InputIterator __last);
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_LIBCPP_INLINE_VISIBILITY
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void erase(const_iterator __p) {__table_.erase(__p);}
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_LIBCPP_INLINE_VISIBILITY
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size_type erase(const key_type& __k) {return __table_.__erase_unique(__k);}
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_LIBCPP_INLINE_VISIBILITY
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void erase(const_iterator __first, const_iterator __last)
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{__table_.erase(__first, __last);}
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_LIBCPP_INLINE_VISIBILITY
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void clear() {__table_.clear();}
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_LIBCPP_INLINE_VISIBILITY
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void swap(hash_set& __u) {__table_.swap(__u.__table_);}
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_LIBCPP_INLINE_VISIBILITY
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hasher hash_funct() const {return __table_.hash_function();}
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_LIBCPP_INLINE_VISIBILITY
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key_equal key_eq() const {return __table_.key_eq();}
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_LIBCPP_INLINE_VISIBILITY
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iterator find(const key_type& __k) {return __table_.find(__k);}
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_LIBCPP_INLINE_VISIBILITY
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const_iterator find(const key_type& __k) const {return __table_.find(__k);}
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_LIBCPP_INLINE_VISIBILITY
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size_type count(const key_type& __k) const {return __table_.__count_unique(__k);}
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_LIBCPP_INLINE_VISIBILITY
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pair<iterator, iterator> equal_range(const key_type& __k)
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{return __table_.__equal_range_unique(__k);}
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_LIBCPP_INLINE_VISIBILITY
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pair<const_iterator, const_iterator> equal_range(const key_type& __k) const
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{return __table_.__equal_range_unique(__k);}
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_LIBCPP_INLINE_VISIBILITY
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size_type bucket_count() const {return __table_.bucket_count();}
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_LIBCPP_INLINE_VISIBILITY
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size_type max_bucket_count() const {return __table_.max_bucket_count();}
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_LIBCPP_INLINE_VISIBILITY
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size_type elems_in_bucket(size_type __n) const {return __table_.bucket_size(__n);}
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_LIBCPP_INLINE_VISIBILITY
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void resize(size_type __n) {__table_.rehash(__n);}
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};
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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hash_set<_Value, _Hash, _Pred, _Alloc>::hash_set(size_type __n,
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const hasher& __hf, const key_equal& __eql)
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: __table_(__hf, __eql)
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{
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__table_.rehash(__n);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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hash_set<_Value, _Hash, _Pred, _Alloc>::hash_set(size_type __n,
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const hasher& __hf, const key_equal& __eql, const allocator_type& __a)
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: __table_(__hf, __eql, __a)
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{
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__table_.rehash(__n);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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template <class _InputIterator>
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hash_set<_Value, _Hash, _Pred, _Alloc>::hash_set(
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_InputIterator __first, _InputIterator __last)
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{
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__table_.rehash(193);
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insert(__first, __last);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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template <class _InputIterator>
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hash_set<_Value, _Hash, _Pred, _Alloc>::hash_set(
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_InputIterator __first, _InputIterator __last, size_type __n,
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const hasher& __hf, const key_equal& __eql)
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: __table_(__hf, __eql)
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{
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__table_.rehash(__n);
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insert(__first, __last);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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template <class _InputIterator>
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hash_set<_Value, _Hash, _Pred, _Alloc>::hash_set(
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_InputIterator __first, _InputIterator __last, size_type __n,
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const hasher& __hf, const key_equal& __eql, const allocator_type& __a)
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: __table_(__hf, __eql, __a)
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{
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__table_.rehash(__n);
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insert(__first, __last);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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hash_set<_Value, _Hash, _Pred, _Alloc>::hash_set(
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const hash_set& __u)
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: __table_(__u.__table_)
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{
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__table_.rehash(__u.bucket_count());
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insert(__u.begin(), __u.end());
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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template <class _InputIterator>
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inline
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void
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hash_set<_Value, _Hash, _Pred, _Alloc>::insert(_InputIterator __first,
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_InputIterator __last)
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{
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for (; __first != __last; ++__first)
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__table_.__insert_unique(*__first);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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inline _LIBCPP_INLINE_VISIBILITY
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void
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swap(hash_set<_Value, _Hash, _Pred, _Alloc>& __x,
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hash_set<_Value, _Hash, _Pred, _Alloc>& __y)
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{
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__x.swap(__y);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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bool
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operator==(const hash_set<_Value, _Hash, _Pred, _Alloc>& __x,
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const hash_set<_Value, _Hash, _Pred, _Alloc>& __y)
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{
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if (__x.size() != __y.size())
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return false;
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typedef typename hash_set<_Value, _Hash, _Pred, _Alloc>::const_iterator
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const_iterator;
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for (const_iterator __i = __x.begin(), __ex = __x.end(), __ey = __y.end();
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__i != __ex; ++__i)
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{
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const_iterator __j = __y.find(*__i);
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if (__j == __ey || !(*__i == *__j))
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return false;
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}
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return true;
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator!=(const hash_set<_Value, _Hash, _Pred, _Alloc>& __x,
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const hash_set<_Value, _Hash, _Pred, _Alloc>& __y)
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{
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return !(__x == __y);
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}
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template <class _Value, class _Hash = hash<_Value>, class _Pred = equal_to<_Value>,
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class _Alloc = allocator<_Value> >
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class _LIBCPP_TEMPLATE_VIS hash_multiset
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{
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public:
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// types
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typedef _Value key_type;
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typedef key_type value_type;
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typedef _Hash hasher;
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typedef _Pred key_equal;
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typedef _Alloc allocator_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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private:
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typedef __hash_table<value_type, hasher, key_equal, allocator_type> __table;
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__table __table_;
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public:
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typedef typename __table::pointer pointer;
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typedef typename __table::const_pointer const_pointer;
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typedef typename __table::size_type size_type;
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typedef typename __table::difference_type difference_type;
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typedef typename __table::const_iterator iterator;
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typedef typename __table::const_iterator const_iterator;
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_LIBCPP_INLINE_VISIBILITY
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hash_multiset() {__table_.rehash(193);}
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explicit hash_multiset(size_type __n, const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal());
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hash_multiset(size_type __n, const hasher& __hf,
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const key_equal& __eql, const allocator_type& __a);
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template <class _InputIterator>
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hash_multiset(_InputIterator __first, _InputIterator __last);
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template <class _InputIterator>
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hash_multiset(_InputIterator __first, _InputIterator __last,
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size_type __n, const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal());
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template <class _InputIterator>
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hash_multiset(_InputIterator __first, _InputIterator __last,
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size_type __n , const hasher& __hf,
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const key_equal& __eql, const allocator_type& __a);
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hash_multiset(const hash_multiset& __u);
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_LIBCPP_INLINE_VISIBILITY
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allocator_type get_allocator() const
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{return allocator_type(__table_.__node_alloc());}
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_LIBCPP_INLINE_VISIBILITY
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bool empty() const {return __table_.size() == 0;}
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_LIBCPP_INLINE_VISIBILITY
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size_type size() const {return __table_.size();}
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_LIBCPP_INLINE_VISIBILITY
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size_type max_size() const {return __table_.max_size();}
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_LIBCPP_INLINE_VISIBILITY
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iterator begin() {return __table_.begin();}
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_LIBCPP_INLINE_VISIBILITY
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iterator end() {return __table_.end();}
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_LIBCPP_INLINE_VISIBILITY
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const_iterator begin() const {return __table_.begin();}
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_LIBCPP_INLINE_VISIBILITY
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const_iterator end() const {return __table_.end();}
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_LIBCPP_INLINE_VISIBILITY
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iterator insert(const value_type& __x) {return __table_.__insert_multi(__x);}
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_LIBCPP_INLINE_VISIBILITY
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iterator insert(const_iterator, const value_type& __x) {return insert(__x);}
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template <class _InputIterator>
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_LIBCPP_INLINE_VISIBILITY
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void insert(_InputIterator __first, _InputIterator __last);
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_LIBCPP_INLINE_VISIBILITY
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void erase(const_iterator __p) {__table_.erase(__p);}
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_LIBCPP_INLINE_VISIBILITY
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size_type erase(const key_type& __k) {return __table_.__erase_multi(__k);}
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_LIBCPP_INLINE_VISIBILITY
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void erase(const_iterator __first, const_iterator __last)
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{__table_.erase(__first, __last);}
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_LIBCPP_INLINE_VISIBILITY
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void clear() {__table_.clear();}
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_LIBCPP_INLINE_VISIBILITY
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void swap(hash_multiset& __u) {__table_.swap(__u.__table_);}
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_LIBCPP_INLINE_VISIBILITY
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hasher hash_funct() const {return __table_.hash_function();}
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_LIBCPP_INLINE_VISIBILITY
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key_equal key_eq() const {return __table_.key_eq();}
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_LIBCPP_INLINE_VISIBILITY
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iterator find(const key_type& __k) {return __table_.find(__k);}
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_LIBCPP_INLINE_VISIBILITY
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const_iterator find(const key_type& __k) const {return __table_.find(__k);}
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_LIBCPP_INLINE_VISIBILITY
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size_type count(const key_type& __k) const {return __table_.__count_multi(__k);}
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_LIBCPP_INLINE_VISIBILITY
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pair<iterator, iterator> equal_range(const key_type& __k)
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{return __table_.__equal_range_multi(__k);}
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_LIBCPP_INLINE_VISIBILITY
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pair<const_iterator, const_iterator> equal_range(const key_type& __k) const
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{return __table_.__equal_range_multi(__k);}
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_LIBCPP_INLINE_VISIBILITY
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size_type bucket_count() const {return __table_.bucket_count();}
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_LIBCPP_INLINE_VISIBILITY
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size_type max_bucket_count() const {return __table_.max_bucket_count();}
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_LIBCPP_INLINE_VISIBILITY
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size_type elems_in_bucket(size_type __n) const {return __table_.bucket_size(__n);}
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_LIBCPP_INLINE_VISIBILITY
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void resize(size_type __n) {__table_.rehash(__n);}
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};
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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hash_multiset<_Value, _Hash, _Pred, _Alloc>::hash_multiset(
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size_type __n, const hasher& __hf, const key_equal& __eql)
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: __table_(__hf, __eql)
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{
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__table_.rehash(__n);
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}
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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hash_multiset<_Value, _Hash, _Pred, _Alloc>::hash_multiset(
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size_type __n, const hasher& __hf, const key_equal& __eql,
|
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const allocator_type& __a)
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: __table_(__hf, __eql, __a)
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{
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__table_.rehash(__n);
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}
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|
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template <class _Value, class _Hash, class _Pred, class _Alloc>
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template <class _InputIterator>
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hash_multiset<_Value, _Hash, _Pred, _Alloc>::hash_multiset(
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_InputIterator __first, _InputIterator __last)
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{
|
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__table_.rehash(193);
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insert(__first, __last);
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}
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|
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template <class _Value, class _Hash, class _Pred, class _Alloc>
|
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template <class _InputIterator>
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hash_multiset<_Value, _Hash, _Pred, _Alloc>::hash_multiset(
|
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_InputIterator __first, _InputIterator __last, size_type __n,
|
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const hasher& __hf, const key_equal& __eql)
|
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: __table_(__hf, __eql)
|
|
{
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__table_.rehash(__n);
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insert(__first, __last);
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}
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|
|
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template <class _Value, class _Hash, class _Pred, class _Alloc>
|
|
template <class _InputIterator>
|
|
hash_multiset<_Value, _Hash, _Pred, _Alloc>::hash_multiset(
|
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_InputIterator __first, _InputIterator __last, size_type __n,
|
|
const hasher& __hf, const key_equal& __eql, const allocator_type& __a)
|
|
: __table_(__hf, __eql, __a)
|
|
{
|
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__table_.rehash(__n);
|
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insert(__first, __last);
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}
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|
|
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template <class _Value, class _Hash, class _Pred, class _Alloc>
|
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hash_multiset<_Value, _Hash, _Pred, _Alloc>::hash_multiset(
|
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const hash_multiset& __u)
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: __table_(__u.__table_)
|
|
{
|
|
__table_.rehash(__u.bucket_count());
|
|
insert(__u.begin(), __u.end());
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|
}
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|
|
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template <class _Value, class _Hash, class _Pred, class _Alloc>
|
|
template <class _InputIterator>
|
|
inline
|
|
void
|
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hash_multiset<_Value, _Hash, _Pred, _Alloc>::insert(_InputIterator __first,
|
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_InputIterator __last)
|
|
{
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for (; __first != __last; ++__first)
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__table_.__insert_multi(*__first);
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}
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|
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template <class _Value, class _Hash, class _Pred, class _Alloc>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void
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swap(hash_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
|
|
hash_multiset<_Value, _Hash, _Pred, _Alloc>& __y)
|
|
{
|
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__x.swap(__y);
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|
}
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|
|
|
template <class _Value, class _Hash, class _Pred, class _Alloc>
|
|
bool
|
|
operator==(const hash_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
|
|
const hash_multiset<_Value, _Hash, _Pred, _Alloc>& __y)
|
|
{
|
|
if (__x.size() != __y.size())
|
|
return false;
|
|
typedef typename hash_multiset<_Value, _Hash, _Pred, _Alloc>::const_iterator
|
|
const_iterator;
|
|
typedef pair<const_iterator, const_iterator> _EqRng;
|
|
for (const_iterator __i = __x.begin(), __ex = __x.end(); __i != __ex;)
|
|
{
|
|
_EqRng __xeq = __x.equal_range(*__i);
|
|
_EqRng __yeq = __y.equal_range(*__i);
|
|
if (_VSTD::distance(__xeq.first, __xeq.second) !=
|
|
_VSTD::distance(__yeq.first, __yeq.second) ||
|
|
!_VSTD::is_permutation(__xeq.first, __xeq.second, __yeq.first))
|
|
return false;
|
|
__i = __xeq.second;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
template <class _Value, class _Hash, class _Pred, class _Alloc>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
bool
|
|
operator!=(const hash_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
|
|
const hash_multiset<_Value, _Hash, _Pred, _Alloc>& __y)
|
|
{
|
|
return !(__x == __y);
|
|
}
|
|
|
|
} // __gnu_cxx
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#endif // _LIBCPP_HASH_SET
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