568 lines
17 KiB
Plaintext
568 lines
17 KiB
Plaintext
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// Hashing set implementation -*- C++ -*-
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// Copyright (C) 2001-2019 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/*
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* Copyright (c) 1996
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*/
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/** @file backward/hash_set
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* This file is a GNU extension to the Standard C++ Library (possibly
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* containing extensions from the HP/SGI STL subset).
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*/
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#ifndef _BACKWARD_HASH_SET
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#define _BACKWARD_HASH_SET 1
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#ifndef _GLIBCXX_PERMIT_BACKWARD_HASH
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#include <backward/backward_warning.h>
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#endif
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#include <bits/c++config.h>
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#include <backward/hashtable.h>
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#include <bits/concept_check.h>
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namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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using std::equal_to;
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using std::allocator;
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using std::pair;
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using std::_Identity;
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/**
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* This is an SGI extension.
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* @ingroup SGIextensions
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* @doctodo
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*/
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template<class _Value, class _HashFcn = hash<_Value>,
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class _EqualKey = 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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// concept requirements
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__glibcxx_class_requires(_Value, _SGIAssignableConcept)
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__glibcxx_class_requires3(_HashFcn, size_t, _Value, _UnaryFunctionConcept)
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__glibcxx_class_requires3(_EqualKey, _Value, _Value, _BinaryPredicateConcept)
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private:
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typedef hashtable<_Value, _Value, _HashFcn, _Identity<_Value>,
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_EqualKey, _Alloc> _Ht;
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_Ht _M_ht;
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public:
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typedef typename _Ht::key_type key_type;
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typedef typename _Ht::value_type value_type;
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typedef typename _Ht::hasher hasher;
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typedef typename _Ht::key_equal key_equal;
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typedef typename _Ht::size_type size_type;
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typedef typename _Ht::difference_type difference_type;
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typedef typename _Alloc::pointer pointer;
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typedef typename _Alloc::const_pointer const_pointer;
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typedef typename _Alloc::reference reference;
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typedef typename _Alloc::const_reference const_reference;
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typedef typename _Ht::const_iterator iterator;
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typedef typename _Ht::const_iterator const_iterator;
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typedef typename _Ht::allocator_type allocator_type;
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hasher
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hash_funct() const
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{ return _M_ht.hash_funct(); }
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key_equal
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key_eq() const
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{ return _M_ht.key_eq(); }
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allocator_type
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get_allocator() const
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{ return _M_ht.get_allocator(); }
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hash_set()
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: _M_ht(100, hasher(), key_equal(), allocator_type()) {}
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explicit
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hash_set(size_type __n)
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: _M_ht(__n, hasher(), key_equal(), allocator_type()) {}
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hash_set(size_type __n, const hasher& __hf)
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: _M_ht(__n, __hf, key_equal(), allocator_type()) {}
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hash_set(size_type __n, const hasher& __hf, const key_equal& __eql,
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const allocator_type& __a = allocator_type())
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: _M_ht(__n, __hf, __eql, __a) {}
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template<class _InputIterator>
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hash_set(_InputIterator __f, _InputIterator __l)
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: _M_ht(100, hasher(), key_equal(), allocator_type())
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{ _M_ht.insert_unique(__f, __l); }
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template<class _InputIterator>
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hash_set(_InputIterator __f, _InputIterator __l, size_type __n)
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: _M_ht(__n, hasher(), key_equal(), allocator_type())
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{ _M_ht.insert_unique(__f, __l); }
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template<class _InputIterator>
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hash_set(_InputIterator __f, _InputIterator __l, size_type __n,
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const hasher& __hf)
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: _M_ht(__n, __hf, key_equal(), allocator_type())
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{ _M_ht.insert_unique(__f, __l); }
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template<class _InputIterator>
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hash_set(_InputIterator __f, _InputIterator __l, size_type __n,
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const hasher& __hf, const key_equal& __eql,
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const allocator_type& __a = allocator_type())
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: _M_ht(__n, __hf, __eql, __a)
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{ _M_ht.insert_unique(__f, __l); }
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size_type
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size() const
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{ return _M_ht.size(); }
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size_type
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max_size() const
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{ return _M_ht.max_size(); }
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_GLIBCXX_NODISCARD bool
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empty() const
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{ return _M_ht.empty(); }
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void
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swap(hash_set& __hs)
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{ _M_ht.swap(__hs._M_ht); }
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template<class _Val, class _HF, class _EqK, class _Al>
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friend bool
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operator==(const hash_set<_Val, _HF, _EqK, _Al>&,
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const hash_set<_Val, _HF, _EqK, _Al>&);
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iterator
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begin() const
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{ return _M_ht.begin(); }
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iterator
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end() const
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{ return _M_ht.end(); }
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pair<iterator, bool>
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insert(const value_type& __obj)
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{
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pair<typename _Ht::iterator, bool> __p = _M_ht.insert_unique(__obj);
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return pair<iterator,bool>(__p.first, __p.second);
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}
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template<class _InputIterator>
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void
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insert(_InputIterator __f, _InputIterator __l)
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{ _M_ht.insert_unique(__f, __l); }
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pair<iterator, bool>
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insert_noresize(const value_type& __obj)
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{
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pair<typename _Ht::iterator, bool> __p
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= _M_ht.insert_unique_noresize(__obj);
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return pair<iterator, bool>(__p.first, __p.second);
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}
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iterator
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find(const key_type& __key) const
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{ return _M_ht.find(__key); }
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size_type
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count(const key_type& __key) const
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{ return _M_ht.count(__key); }
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pair<iterator, iterator>
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equal_range(const key_type& __key) const
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{ return _M_ht.equal_range(__key); }
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size_type
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erase(const key_type& __key)
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{return _M_ht.erase(__key); }
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void
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erase(iterator __it)
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{ _M_ht.erase(__it); }
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void
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erase(iterator __f, iterator __l)
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{ _M_ht.erase(__f, __l); }
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void
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clear()
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{ _M_ht.clear(); }
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void
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resize(size_type __hint)
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{ _M_ht.resize(__hint); }
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size_type
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bucket_count() const
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{ return _M_ht.bucket_count(); }
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size_type
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max_bucket_count() const
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{ return _M_ht.max_bucket_count(); }
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size_type
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elems_in_bucket(size_type __n) const
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{ return _M_ht.elems_in_bucket(__n); }
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};
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template<class _Value, class _HashFcn, class _EqualKey, class _Alloc>
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inline bool
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operator==(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs1,
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const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs2)
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{ return __hs1._M_ht == __hs2._M_ht; }
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template<class _Value, class _HashFcn, class _EqualKey, class _Alloc>
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inline bool
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operator!=(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs1,
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const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __hs2)
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{ return !(__hs1 == __hs2); }
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template<class _Val, class _HashFcn, class _EqualKey, class _Alloc>
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inline void
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swap(hash_set<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1,
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hash_set<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2)
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{ __hs1.swap(__hs2); }
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/**
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* This is an SGI extension.
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* @ingroup SGIextensions
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* @doctodo
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*/
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template<class _Value,
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class _HashFcn = hash<_Value>,
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class _EqualKey = 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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// concept requirements
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__glibcxx_class_requires(_Value, _SGIAssignableConcept)
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__glibcxx_class_requires3(_HashFcn, size_t, _Value, _UnaryFunctionConcept)
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__glibcxx_class_requires3(_EqualKey, _Value, _Value, _BinaryPredicateConcept)
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private:
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typedef hashtable<_Value, _Value, _HashFcn, _Identity<_Value>,
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_EqualKey, _Alloc> _Ht;
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_Ht _M_ht;
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public:
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typedef typename _Ht::key_type key_type;
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typedef typename _Ht::value_type value_type;
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typedef typename _Ht::hasher hasher;
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typedef typename _Ht::key_equal key_equal;
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typedef typename _Ht::size_type size_type;
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typedef typename _Ht::difference_type difference_type;
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typedef typename _Alloc::pointer pointer;
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typedef typename _Alloc::const_pointer const_pointer;
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typedef typename _Alloc::reference reference;
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typedef typename _Alloc::const_reference const_reference;
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typedef typename _Ht::const_iterator iterator;
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typedef typename _Ht::const_iterator const_iterator;
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typedef typename _Ht::allocator_type allocator_type;
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hasher
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hash_funct() const
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{ return _M_ht.hash_funct(); }
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key_equal
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key_eq() const
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{ return _M_ht.key_eq(); }
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allocator_type
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get_allocator() const
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{ return _M_ht.get_allocator(); }
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hash_multiset()
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: _M_ht(100, hasher(), key_equal(), allocator_type()) {}
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explicit
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hash_multiset(size_type __n)
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: _M_ht(__n, hasher(), key_equal(), allocator_type()) {}
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hash_multiset(size_type __n, const hasher& __hf)
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: _M_ht(__n, __hf, key_equal(), allocator_type()) {}
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hash_multiset(size_type __n, const hasher& __hf, const key_equal& __eql,
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const allocator_type& __a = allocator_type())
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: _M_ht(__n, __hf, __eql, __a) {}
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template<class _InputIterator>
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hash_multiset(_InputIterator __f, _InputIterator __l)
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: _M_ht(100, hasher(), key_equal(), allocator_type())
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{ _M_ht.insert_equal(__f, __l); }
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template<class _InputIterator>
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hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n)
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: _M_ht(__n, hasher(), key_equal(), allocator_type())
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{ _M_ht.insert_equal(__f, __l); }
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template<class _InputIterator>
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hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n,
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const hasher& __hf)
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: _M_ht(__n, __hf, key_equal(), allocator_type())
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{ _M_ht.insert_equal(__f, __l); }
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template<class _InputIterator>
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hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n,
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const hasher& __hf, const key_equal& __eql,
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const allocator_type& __a = allocator_type())
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: _M_ht(__n, __hf, __eql, __a)
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{ _M_ht.insert_equal(__f, __l); }
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size_type
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size() const
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{ return _M_ht.size(); }
|
||
|
|
|
||
|
|
size_type
|
||
|
|
max_size() const
|
||
|
|
{ return _M_ht.max_size(); }
|
||
|
|
|
||
|
|
_GLIBCXX_NODISCARD bool
|
||
|
|
empty() const
|
||
|
|
{ return _M_ht.empty(); }
|
||
|
|
|
||
|
|
void
|
||
|
|
swap(hash_multiset& hs)
|
||
|
|
{ _M_ht.swap(hs._M_ht); }
|
||
|
|
|
||
|
|
template<class _Val, class _HF, class _EqK, class _Al>
|
||
|
|
friend bool
|
||
|
|
operator==(const hash_multiset<_Val, _HF, _EqK, _Al>&,
|
||
|
|
const hash_multiset<_Val, _HF, _EqK, _Al>&);
|
||
|
|
|
||
|
|
iterator
|
||
|
|
begin() const
|
||
|
|
{ return _M_ht.begin(); }
|
||
|
|
|
||
|
|
iterator
|
||
|
|
end() const
|
||
|
|
{ return _M_ht.end(); }
|
||
|
|
|
||
|
|
iterator
|
||
|
|
insert(const value_type& __obj)
|
||
|
|
{ return _M_ht.insert_equal(__obj); }
|
||
|
|
|
||
|
|
template<class _InputIterator>
|
||
|
|
void
|
||
|
|
insert(_InputIterator __f, _InputIterator __l)
|
||
|
|
{ _M_ht.insert_equal(__f,__l); }
|
||
|
|
|
||
|
|
iterator
|
||
|
|
insert_noresize(const value_type& __obj)
|
||
|
|
{ return _M_ht.insert_equal_noresize(__obj); }
|
||
|
|
|
||
|
|
iterator
|
||
|
|
find(const key_type& __key) const
|
||
|
|
{ return _M_ht.find(__key); }
|
||
|
|
|
||
|
|
size_type
|
||
|
|
count(const key_type& __key) const
|
||
|
|
{ return _M_ht.count(__key); }
|
||
|
|
|
||
|
|
pair<iterator, iterator>
|
||
|
|
equal_range(const key_type& __key) const
|
||
|
|
{ return _M_ht.equal_range(__key); }
|
||
|
|
|
||
|
|
size_type
|
||
|
|
erase(const key_type& __key)
|
||
|
|
{ return _M_ht.erase(__key); }
|
||
|
|
|
||
|
|
void
|
||
|
|
erase(iterator __it)
|
||
|
|
{ _M_ht.erase(__it); }
|
||
|
|
|
||
|
|
void
|
||
|
|
erase(iterator __f, iterator __l)
|
||
|
|
{ _M_ht.erase(__f, __l); }
|
||
|
|
|
||
|
|
void
|
||
|
|
clear()
|
||
|
|
{ _M_ht.clear(); }
|
||
|
|
|
||
|
|
void
|
||
|
|
resize(size_type __hint)
|
||
|
|
{ _M_ht.resize(__hint); }
|
||
|
|
|
||
|
|
size_type
|
||
|
|
bucket_count() const
|
||
|
|
{ return _M_ht.bucket_count(); }
|
||
|
|
|
||
|
|
size_type
|
||
|
|
max_bucket_count() const
|
||
|
|
{ return _M_ht.max_bucket_count(); }
|
||
|
|
|
||
|
|
size_type
|
||
|
|
elems_in_bucket(size_type __n) const
|
||
|
|
{ return _M_ht.elems_in_bucket(__n); }
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class _Val, class _HashFcn, class _EqualKey, class _Alloc>
|
||
|
|
inline bool
|
||
|
|
operator==(const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1,
|
||
|
|
const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2)
|
||
|
|
{ return __hs1._M_ht == __hs2._M_ht; }
|
||
|
|
|
||
|
|
template<class _Val, class _HashFcn, class _EqualKey, class _Alloc>
|
||
|
|
inline bool
|
||
|
|
operator!=(const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1,
|
||
|
|
const hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2)
|
||
|
|
{ return !(__hs1 == __hs2); }
|
||
|
|
|
||
|
|
template<class _Val, class _HashFcn, class _EqualKey, class _Alloc>
|
||
|
|
inline void
|
||
|
|
swap(hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs1,
|
||
|
|
hash_multiset<_Val, _HashFcn, _EqualKey, _Alloc>& __hs2)
|
||
|
|
{ __hs1.swap(__hs2); }
|
||
|
|
|
||
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
||
|
|
{
|
||
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
||
|
|
|
||
|
|
// Specialization of insert_iterator so that it will work for hash_set
|
||
|
|
// and hash_multiset.
|
||
|
|
template<class _Value, class _HashFcn, class _EqualKey, class _Alloc>
|
||
|
|
class insert_iterator<__gnu_cxx::hash_set<_Value, _HashFcn,
|
||
|
|
_EqualKey, _Alloc> >
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
typedef __gnu_cxx::hash_set<_Value, _HashFcn, _EqualKey, _Alloc>
|
||
|
|
_Container;
|
||
|
|
_Container* container;
|
||
|
|
|
||
|
|
public:
|
||
|
|
typedef _Container container_type;
|
||
|
|
typedef output_iterator_tag iterator_category;
|
||
|
|
typedef void value_type;
|
||
|
|
typedef void difference_type;
|
||
|
|
typedef void pointer;
|
||
|
|
typedef void reference;
|
||
|
|
|
||
|
|
insert_iterator(_Container& __x)
|
||
|
|
: container(&__x) {}
|
||
|
|
|
||
|
|
insert_iterator(_Container& __x, typename _Container::iterator)
|
||
|
|
: container(&__x) {}
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator=(const typename _Container::value_type& __value)
|
||
|
|
{
|
||
|
|
container->insert(__value);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator*()
|
||
|
|
{ return *this; }
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator++()
|
||
|
|
{ return *this; }
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator++(int)
|
||
|
|
{ return *this; }
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class _Value, class _HashFcn, class _EqualKey, class _Alloc>
|
||
|
|
class insert_iterator<__gnu_cxx::hash_multiset<_Value, _HashFcn,
|
||
|
|
_EqualKey, _Alloc> >
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
typedef __gnu_cxx::hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>
|
||
|
|
_Container;
|
||
|
|
_Container* container;
|
||
|
|
typename _Container::iterator iter;
|
||
|
|
|
||
|
|
public:
|
||
|
|
typedef _Container container_type;
|
||
|
|
typedef output_iterator_tag iterator_category;
|
||
|
|
typedef void value_type;
|
||
|
|
typedef void difference_type;
|
||
|
|
typedef void pointer;
|
||
|
|
typedef void reference;
|
||
|
|
|
||
|
|
insert_iterator(_Container& __x)
|
||
|
|
: container(&__x) {}
|
||
|
|
|
||
|
|
insert_iterator(_Container& __x, typename _Container::iterator)
|
||
|
|
: container(&__x) {}
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator=(const typename _Container::value_type& __value)
|
||
|
|
{
|
||
|
|
container->insert(__value);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator*()
|
||
|
|
{ return *this; }
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator++()
|
||
|
|
{ return *this; }
|
||
|
|
|
||
|
|
insert_iterator<_Container>&
|
||
|
|
operator++(int) { return *this; }
|
||
|
|
};
|
||
|
|
|
||
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
#endif
|