990 lines
27 KiB
C++
990 lines
27 KiB
C++
// List implementation -*- C++ -*-
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// Copyright (C) 2001, 2002 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 2, 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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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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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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* Copyright (c) 1996,1997
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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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/** @file stl_list.h
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* This is an internal header file, included by other library headers.
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* You should not attempt to use it directly.
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*/
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#ifndef __GLIBCPP_INTERNAL_LIST_H
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#define __GLIBCPP_INTERNAL_LIST_H
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#include <bits/concept_check.h>
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namespace std
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{
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struct _List_node_base
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{
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_List_node_base* _M_next;
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_List_node_base* _M_prev;
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};
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template<typename _Tp>
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struct _List_node : public _List_node_base
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{
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_Tp _M_data;
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};
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struct _List_iterator_base
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{
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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typedef bidirectional_iterator_tag iterator_category;
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_List_node_base* _M_node;
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_List_iterator_base(_List_node_base* __x)
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: _M_node(__x)
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{ }
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_List_iterator_base()
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{ }
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void
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_M_incr()
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{ _M_node = _M_node->_M_next; }
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void
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_M_decr()
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{ _M_node = _M_node->_M_prev; }
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bool
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operator==(const _List_iterator_base& __x) const
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{ return _M_node == __x._M_node; }
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bool
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operator!=(const _List_iterator_base& __x) const
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{ return _M_node != __x._M_node; }
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};
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template<typename _Tp, typename _Ref, typename _Ptr>
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struct _List_iterator : public _List_iterator_base
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{
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typedef _List_iterator<_Tp,_Tp&,_Tp*> iterator;
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typedef _List_iterator<_Tp,const _Tp&,const _Tp*> const_iterator;
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typedef _List_iterator<_Tp,_Ref,_Ptr> _Self;
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typedef _Tp value_type;
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typedef _Ptr pointer;
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typedef _Ref reference;
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typedef _List_node<_Tp> _Node;
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_List_iterator(_Node* __x)
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: _List_iterator_base(__x)
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{ }
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_List_iterator()
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{ }
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_List_iterator(const iterator& __x)
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: _List_iterator_base(__x._M_node)
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{ }
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reference
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operator*() const
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{ return ((_Node*) _M_node)->_M_data; }
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pointer
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operator->() const
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{ return &(operator*()); }
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_Self&
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operator++()
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{
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this->_M_incr();
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return *this;
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}
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_Self
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operator++(int)
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{
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_Self __tmp = *this;
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this->_M_incr();
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return __tmp;
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}
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_Self&
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operator--()
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{
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this->_M_decr();
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return *this;
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}
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_Self
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operator--(int)
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{
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_Self __tmp = *this;
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this->_M_decr();
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return __tmp;
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}
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};
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// Base class that encapsulates details of allocators. Three cases:
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// an ordinary standard-conforming allocator, a standard-conforming
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// allocator with no non-static data, and an SGI-style allocator.
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// This complexity is necessary only because we're worrying about backward
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// compatibility and because we want to avoid wasting storage on an
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// allocator instance if it isn't necessary.
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// Base for general standard-conforming allocators.
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template<typename _Tp, typename _Allocator, bool _IsStatic>
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class _List_alloc_base
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{
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public:
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typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type
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allocator_type;
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allocator_type
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get_allocator() const
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{ return _Node_allocator; }
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_List_alloc_base(const allocator_type& __a)
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: _Node_allocator(__a)
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{ }
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protected:
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_List_node<_Tp>*
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_M_get_node()
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{ return _Node_allocator.allocate(1); }
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void
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_M_put_node(_List_node<_Tp>* __p)
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{ _Node_allocator.deallocate(__p, 1); }
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protected:
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typename _Alloc_traits<_List_node<_Tp>, _Allocator>::allocator_type
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_Node_allocator;
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_List_node<_Tp>* _M_node;
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};
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// Specialization for instanceless allocators.
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template<typename _Tp, typename _Allocator>
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class _List_alloc_base<_Tp, _Allocator, true>
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{
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public:
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typedef typename _Alloc_traits<_Tp, _Allocator>::allocator_type
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allocator_type;
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allocator_type
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get_allocator() const
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{ return allocator_type(); }
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_List_alloc_base(const allocator_type&)
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{ }
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protected:
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typedef typename _Alloc_traits<_List_node<_Tp>, _Allocator>::_Alloc_type
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_Alloc_type;
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_List_node<_Tp>*
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_M_get_node()
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{ return _Alloc_type::allocate(1); }
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void
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_M_put_node(_List_node<_Tp>* __p)
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{ _Alloc_type::deallocate(__p, 1); }
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protected:
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_List_node<_Tp>* _M_node;
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};
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template<typename _Tp, typename _Alloc>
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class _List_base
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: public _List_alloc_base<_Tp, _Alloc,
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_Alloc_traits<_Tp, _Alloc>::_S_instanceless>
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{
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public:
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typedef _List_alloc_base<_Tp, _Alloc,
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_Alloc_traits<_Tp, _Alloc>::_S_instanceless>
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_Base;
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typedef typename _Base::allocator_type allocator_type;
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_List_base(const allocator_type& __a)
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: _Base(__a)
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{
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_M_node = _M_get_node();
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_M_node->_M_next = _M_node;
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_M_node->_M_prev = _M_node;
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}
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~_List_base()
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{
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clear();
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_M_put_node(_M_node);
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}
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void clear();
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};
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/**
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* @ingroup Containers
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* @ingroup Sequences
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*
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* Meets the requirements of a <a href="tables.html#65">container</a>, a
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* <a href="tables.html#66">reversible container</a>, and a
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* <a href="tables.html#67">sequence</a>, including the
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* <a href="tables.html#68">optional sequence requirements</a> with the
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* %exception of @c at and @c operator[].
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*
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* @doctodo
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*
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*/
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template<typename _Tp, typename _Alloc = allocator<_Tp> >
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class list : protected _List_base<_Tp, _Alloc>
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{
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// concept requirements
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__glibcpp_class_requires(_Tp, _SGIAssignableConcept)
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typedef _List_base<_Tp, _Alloc> _Base;
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protected:
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typedef void* _Void_pointer;
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public:
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typedef _Tp value_type;
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typedef value_type* pointer;
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typedef const value_type* const_pointer;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef _List_node<_Tp> _Node;
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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typedef typename _Base::allocator_type allocator_type;
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typedef _List_iterator<_Tp,_Tp&,_Tp*> iterator;
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typedef _List_iterator<_Tp,const _Tp&,const _Tp*> const_iterator;
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typedef reverse_iterator<const_iterator> const_reverse_iterator;
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typedef reverse_iterator<iterator> reverse_iterator;
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protected:
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using _Base::_M_node;
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using _Base::_M_put_node;
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using _Base::_M_get_node;
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protected:
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_Node*
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_M_create_node(const _Tp& __x)
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{
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_Node* __p = _M_get_node();
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try {
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_Construct(&__p->_M_data, __x);
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}
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catch(...)
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{
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_M_put_node(__p);
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__throw_exception_again;
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}
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return __p;
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}
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_Node*
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_M_create_node()
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{
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_Node* __p = _M_get_node();
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try {
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_Construct(&__p->_M_data);
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}
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catch(...)
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{
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_M_put_node(__p);
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__throw_exception_again;
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}
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return __p;
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}
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public:
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allocator_type
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get_allocator() const
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{ return _Base::get_allocator(); }
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explicit
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list(const allocator_type& __a = allocator_type())
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: _Base(__a)
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{ }
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iterator
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begin()
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{ return static_cast<_Node*>(_M_node->_M_next); }
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const_iterator
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begin() const
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{ return static_cast<_Node*>(_M_node->_M_next); }
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iterator
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end()
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{ return _M_node; }
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const_iterator
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end() const
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{ return _M_node; }
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reverse_iterator
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rbegin()
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{ return reverse_iterator(end()); }
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const_reverse_iterator
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rbegin() const
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{ return const_reverse_iterator(end()); }
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reverse_iterator
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rend()
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{ return reverse_iterator(begin()); }
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const_reverse_iterator
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rend() const
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{ return const_reverse_iterator(begin()); }
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bool
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empty() const
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{ return _M_node->_M_next == _M_node; }
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size_type
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size() const
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{ return distance(begin(), end()); }
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size_type
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max_size() const
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{ return size_type(-1); }
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reference
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front()
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{ return *begin(); }
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const_reference
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front() const
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{ return *begin(); }
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reference
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back()
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{ return *(--end()); }
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const_reference
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back() const
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{ return *(--end()); }
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void
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swap(list<_Tp, _Alloc>& __x)
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{ std::swap(_M_node, __x._M_node); }
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iterator
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insert(iterator __position, const _Tp& __x)
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{
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_Node* __tmp = _M_create_node(__x);
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__tmp->_M_next = __position._M_node;
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__tmp->_M_prev = __position._M_node->_M_prev;
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__position._M_node->_M_prev->_M_next = __tmp;
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__position._M_node->_M_prev = __tmp;
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return __tmp;
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}
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iterator
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insert(iterator __position)
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{ return insert(__position, _Tp()); }
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// Check whether it's an integral type. If so, it's not an iterator.
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template<typename _Integer>
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void
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_M_insert_dispatch(iterator __pos, _Integer __n, _Integer __x, __true_type)
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{ _M_fill_insert(__pos, (size_type) __n, (_Tp) __x); }
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template<typename _InputIterator>
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void
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_M_insert_dispatch(iterator __pos,
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_InputIterator __first, _InputIterator __last,
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__false_type);
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template<typename _InputIterator>
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void
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insert(iterator __pos, _InputIterator __first, _InputIterator __last)
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{
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typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
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_M_insert_dispatch(__pos, __first, __last, _Integral());
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}
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void
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insert(iterator __pos, size_type __n, const _Tp& __x)
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{ _M_fill_insert(__pos, __n, __x); }
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void
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_M_fill_insert(iterator __pos, size_type __n, const _Tp& __x);
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void
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push_front(const _Tp& __x)
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{ insert(begin(), __x); }
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void
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push_front()
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{ insert(begin()); }
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void
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push_back(const _Tp& __x)
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{ insert(end(), __x); }
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void
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push_back()
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{ insert(end()); }
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iterator
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erase(iterator __position)
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{
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_List_node_base* __next_node = __position._M_node->_M_next;
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_List_node_base* __prev_node = __position._M_node->_M_prev;
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_Node* __n = static_cast<_Node*>(__position._M_node);
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__prev_node->_M_next = __next_node;
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__next_node->_M_prev = __prev_node;
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_Destroy(&__n->_M_data);
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_M_put_node(__n);
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return iterator(static_cast<_Node*>(__next_node));
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}
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iterator
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erase(iterator __first, iterator __last);
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void
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clear()
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{ _Base::clear(); }
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void
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resize(size_type __new_size, const _Tp& __x);
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void
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resize(size_type __new_size)
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{ this->resize(__new_size, _Tp()); }
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void
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pop_front()
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{ erase(begin()); }
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void
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pop_back()
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{
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iterator __tmp = end();
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erase(--__tmp);
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}
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list(size_type __n, const _Tp& __value,
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const allocator_type& __a = allocator_type())
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: _Base(__a)
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{ insert(begin(), __n, __value); }
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explicit
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list(size_type __n)
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: _Base(allocator_type())
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{ insert(begin(), __n, _Tp()); }
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// We don't need any dispatching tricks here, because insert does all of
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// that anyway.
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template<typename _InputIterator>
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list(_InputIterator __first, _InputIterator __last,
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const allocator_type& __a = allocator_type())
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: _Base(__a)
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{ insert(begin(), __first, __last); }
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list(const list<_Tp, _Alloc>& __x)
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: _Base(__x.get_allocator())
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{ insert(begin(), __x.begin(), __x.end()); }
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~list()
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{ }
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list<_Tp, _Alloc>&
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operator=(const list<_Tp, _Alloc>& __x);
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public:
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// assign(), a generalized assignment member function. Two
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// versions: one that takes a count, and one that takes a range.
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// The range version is a member template, so we dispatch on whether
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// or not the type is an integer.
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void
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assign(size_type __n, const _Tp& __val)
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{ _M_fill_assign(__n, __val); }
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void
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_M_fill_assign(size_type __n, const _Tp& __val);
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template<typename _InputIterator>
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void
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assign(_InputIterator __first, _InputIterator __last)
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{
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typedef typename _Is_integer<_InputIterator>::_Integral _Integral;
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_M_assign_dispatch(__first, __last, _Integral());
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}
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template<typename _Integer>
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void
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_M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
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{ _M_fill_assign((size_type) __n, (_Tp) __val); }
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template<typename _InputIterator>
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void
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_M_assign_dispatch(_InputIterator __first, _InputIterator __last,
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__false_type);
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protected:
|
|
void
|
|
_M_transfer(iterator __position, iterator __first, iterator __last)
|
|
{
|
|
if (__position != __last) {
|
|
// Remove [first, last) from its old position.
|
|
__last._M_node->_M_prev->_M_next = __position._M_node;
|
|
__first._M_node->_M_prev->_M_next = __last._M_node;
|
|
__position._M_node->_M_prev->_M_next = __first._M_node;
|
|
|
|
// Splice [first, last) into its new position.
|
|
_List_node_base* __tmp = __position._M_node->_M_prev;
|
|
__position._M_node->_M_prev = __last._M_node->_M_prev;
|
|
__last._M_node->_M_prev = __first._M_node->_M_prev;
|
|
__first._M_node->_M_prev = __tmp;
|
|
}
|
|
}
|
|
|
|
public:
|
|
void
|
|
splice(iterator __position, list& __x)
|
|
{
|
|
if (!__x.empty())
|
|
this->_M_transfer(__position, __x.begin(), __x.end());
|
|
}
|
|
|
|
void
|
|
splice(iterator __position, list&, iterator __i)
|
|
{
|
|
iterator __j = __i;
|
|
++__j;
|
|
if (__position == __i || __position == __j) return;
|
|
this->_M_transfer(__position, __i, __j);
|
|
}
|
|
|
|
void
|
|
splice(iterator __position, list&, iterator __first, iterator __last)
|
|
{
|
|
if (__first != __last)
|
|
this->_M_transfer(__position, __first, __last);
|
|
}
|
|
|
|
void
|
|
remove(const _Tp& __value);
|
|
|
|
void
|
|
unique();
|
|
|
|
void
|
|
merge(list& __x);
|
|
|
|
void
|
|
reverse();
|
|
|
|
void
|
|
sort();
|
|
|
|
template<typename _Predicate>
|
|
void
|
|
remove_if(_Predicate);
|
|
|
|
template<typename _BinaryPredicate>
|
|
void
|
|
unique(_BinaryPredicate);
|
|
|
|
template<typename _StrictWeakOrdering>
|
|
void
|
|
merge(list&, _StrictWeakOrdering);
|
|
|
|
template<typename _StrictWeakOrdering>
|
|
void
|
|
sort(_StrictWeakOrdering);
|
|
};
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator==(const list<_Tp,_Alloc>& __x, const list<_Tp,_Alloc>& __y)
|
|
{
|
|
typedef typename list<_Tp,_Alloc>::const_iterator const_iterator;
|
|
const_iterator __end1 = __x.end();
|
|
const_iterator __end2 = __y.end();
|
|
|
|
const_iterator __i1 = __x.begin();
|
|
const_iterator __i2 = __y.begin();
|
|
while (__i1 != __end1 && __i2 != __end2 && *__i1 == *__i2) {
|
|
++__i1;
|
|
++__i2;
|
|
}
|
|
return __i1 == __end1 && __i2 == __end2;
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator<(const list<_Tp,_Alloc>& __x, const list<_Tp,_Alloc>& __y)
|
|
{
|
|
return lexicographical_compare(__x.begin(), __x.end(),
|
|
__y.begin(), __y.end());
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator!=(const list<_Tp,_Alloc>& __x, const list<_Tp,_Alloc>& __y)
|
|
{ return !(__x == __y); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator>(const list<_Tp,_Alloc>& __x, const list<_Tp,_Alloc>& __y)
|
|
{ return __y < __x; }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator<=(const list<_Tp,_Alloc>& __x, const list<_Tp,_Alloc>& __y)
|
|
{ return !(__y < __x); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline bool
|
|
operator>=(const list<_Tp,_Alloc>& __x, const list<_Tp,_Alloc>& __y)
|
|
{ return !(__x < __y); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline void
|
|
swap(list<_Tp, _Alloc>& __x, list<_Tp, _Alloc>& __y)
|
|
{ __x.swap(__y); }
|
|
|
|
// move these to stl_list.tcc
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void _List_base<_Tp,_Alloc>::
|
|
clear()
|
|
{
|
|
_List_node<_Tp>* __cur = static_cast<_List_node<_Tp>*>(_M_node->_M_next);
|
|
while (__cur != _M_node) {
|
|
_List_node<_Tp>* __tmp = __cur;
|
|
__cur = static_cast<_List_node<_Tp>*>(__cur->_M_next);
|
|
_Destroy(&__tmp->_M_data);
|
|
_M_put_node(__tmp);
|
|
}
|
|
_M_node->_M_next = _M_node;
|
|
_M_node->_M_prev = _M_node;
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
template <typename _InputIter>
|
|
void list<_Tp, _Alloc>::
|
|
_M_insert_dispatch(iterator __position, _InputIter __first, _InputIter __last,
|
|
__false_type)
|
|
{
|
|
for ( ; __first != __last; ++__first)
|
|
insert(__position, *__first);
|
|
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void list<_Tp, _Alloc>::
|
|
_M_fill_insert(iterator __position, size_type __n, const _Tp& __x)
|
|
{
|
|
for ( ; __n > 0; --__n)
|
|
insert(__position, __x);
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
typename list<_Tp,_Alloc>::iterator list<_Tp, _Alloc>::
|
|
erase(iterator __first, iterator __last)
|
|
{
|
|
while (__first != __last)
|
|
erase(__first++);
|
|
return __last;
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void list<_Tp, _Alloc>::
|
|
resize(size_type __new_size, const _Tp& __x)
|
|
{
|
|
iterator __i = begin();
|
|
size_type __len = 0;
|
|
for ( ; __i != end() && __len < __new_size; ++__i, ++__len)
|
|
;
|
|
if (__len == __new_size)
|
|
erase(__i, end());
|
|
else // __i == end()
|
|
insert(end(), __new_size - __len, __x);
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
list<_Tp, _Alloc>& list<_Tp, _Alloc>::
|
|
operator=(const list<_Tp, _Alloc>& __x)
|
|
{
|
|
if (this != &__x) {
|
|
iterator __first1 = begin();
|
|
iterator __last1 = end();
|
|
const_iterator __first2 = __x.begin();
|
|
const_iterator __last2 = __x.end();
|
|
while (__first1 != __last1 && __first2 != __last2)
|
|
*__first1++ = *__first2++;
|
|
if (__first2 == __last2)
|
|
erase(__first1, __last1);
|
|
else
|
|
insert(__last1, __first2, __last2);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void list<_Tp, _Alloc>::
|
|
_M_fill_assign(size_type __n, const _Tp& __val) {
|
|
iterator __i = begin();
|
|
for ( ; __i != end() && __n > 0; ++__i, --__n)
|
|
*__i = __val;
|
|
if (__n > 0)
|
|
insert(end(), __n, __val);
|
|
else
|
|
erase(__i, end());
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
template <typename _InputIter>
|
|
void list<_Tp, _Alloc>::
|
|
_M_assign_dispatch(_InputIter __first2, _InputIter __last2, __false_type)
|
|
{
|
|
iterator __first1 = begin();
|
|
iterator __last1 = end();
|
|
for ( ; __first1 != __last1 && __first2 != __last2; ++__first1, ++__first2)
|
|
*__first1 = *__first2;
|
|
if (__first2 == __last2)
|
|
erase(__first1, __last1);
|
|
else
|
|
insert(__last1, __first2, __last2);
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void list<_Tp, _Alloc>::
|
|
remove(const _Tp& __value)
|
|
{
|
|
iterator __first = begin();
|
|
iterator __last = end();
|
|
while (__first != __last) {
|
|
iterator __next = __first;
|
|
++__next;
|
|
if (*__first == __value) erase(__first);
|
|
__first = __next;
|
|
}
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void list<_Tp, _Alloc>::
|
|
unique()
|
|
{
|
|
iterator __first = begin();
|
|
iterator __last = end();
|
|
if (__first == __last) return;
|
|
iterator __next = __first;
|
|
while (++__next != __last) {
|
|
if (*__first == *__next)
|
|
erase(__next);
|
|
else
|
|
__first = __next;
|
|
__next = __first;
|
|
}
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void list<_Tp, _Alloc>::
|
|
merge(list<_Tp, _Alloc>& __x)
|
|
{
|
|
iterator __first1 = begin();
|
|
iterator __last1 = end();
|
|
iterator __first2 = __x.begin();
|
|
iterator __last2 = __x.end();
|
|
while (__first1 != __last1 && __first2 != __last2)
|
|
if (*__first2 < *__first1) {
|
|
iterator __next = __first2;
|
|
_M_transfer(__first1, __first2, ++__next);
|
|
__first2 = __next;
|
|
}
|
|
else
|
|
++__first1;
|
|
if (__first2 != __last2) _M_transfer(__last1, __first2, __last2);
|
|
}
|
|
|
|
inline void
|
|
__List_base_reverse(_List_node_base* __p)
|
|
{
|
|
_List_node_base* __tmp = __p;
|
|
do {
|
|
std::swap(__tmp->_M_next, __tmp->_M_prev);
|
|
__tmp = __tmp->_M_prev; // Old next node is now prev.
|
|
} while (__tmp != __p);
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
inline void list<_Tp, _Alloc>::
|
|
reverse()
|
|
{ __List_base_reverse(this->_M_node); }
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
void list<_Tp, _Alloc>::
|
|
sort()
|
|
{
|
|
// Do nothing if the list has length 0 or 1.
|
|
if (_M_node->_M_next != _M_node && _M_node->_M_next->_M_next != _M_node) {
|
|
list<_Tp, _Alloc> __carry;
|
|
list<_Tp, _Alloc> __counter[64];
|
|
int __fill = 0;
|
|
while (!empty()) {
|
|
__carry.splice(__carry.begin(), *this, begin());
|
|
int __i = 0;
|
|
while(__i < __fill && !__counter[__i].empty()) {
|
|
__counter[__i].merge(__carry);
|
|
__carry.swap(__counter[__i++]);
|
|
}
|
|
__carry.swap(__counter[__i]);
|
|
if (__i == __fill) ++__fill;
|
|
}
|
|
|
|
for (int __i = 1; __i < __fill; ++__i)
|
|
__counter[__i].merge(__counter[__i-1]);
|
|
swap(__counter[__fill-1]);
|
|
}
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
template <typename _Predicate>
|
|
void list<_Tp, _Alloc>::
|
|
remove_if(_Predicate __pred)
|
|
{
|
|
iterator __first = begin();
|
|
iterator __last = end();
|
|
while (__first != __last) {
|
|
iterator __next = __first;
|
|
++__next;
|
|
if (__pred(*__first)) erase(__first);
|
|
__first = __next;
|
|
}
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
template <typename _BinaryPredicate>
|
|
void list<_Tp, _Alloc>::
|
|
unique(_BinaryPredicate __binary_pred)
|
|
{
|
|
iterator __first = begin();
|
|
iterator __last = end();
|
|
if (__first == __last) return;
|
|
iterator __next = __first;
|
|
while (++__next != __last) {
|
|
if (__binary_pred(*__first, *__next))
|
|
erase(__next);
|
|
else
|
|
__first = __next;
|
|
__next = __first;
|
|
}
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
template <typename _StrictWeakOrdering>
|
|
void list<_Tp, _Alloc>::
|
|
merge(list<_Tp, _Alloc>& __x, _StrictWeakOrdering __comp)
|
|
{
|
|
iterator __first1 = begin();
|
|
iterator __last1 = end();
|
|
iterator __first2 = __x.begin();
|
|
iterator __last2 = __x.end();
|
|
while (__first1 != __last1 && __first2 != __last2)
|
|
if (__comp(*__first2, *__first1)) {
|
|
iterator __next = __first2;
|
|
_M_transfer(__first1, __first2, ++__next);
|
|
__first2 = __next;
|
|
}
|
|
else
|
|
++__first1;
|
|
if (__first2 != __last2) _M_transfer(__last1, __first2, __last2);
|
|
}
|
|
|
|
template<typename _Tp, typename _Alloc>
|
|
template <typename _StrictWeakOrdering>
|
|
void list<_Tp, _Alloc>::
|
|
sort(_StrictWeakOrdering __comp)
|
|
{
|
|
// Do nothing if the list has length 0 or 1.
|
|
if (_M_node->_M_next != _M_node && _M_node->_M_next->_M_next != _M_node) {
|
|
list<_Tp, _Alloc> __carry;
|
|
list<_Tp, _Alloc> __counter[64];
|
|
int __fill = 0;
|
|
while (!empty()) {
|
|
__carry.splice(__carry.begin(), *this, begin());
|
|
int __i = 0;
|
|
while(__i < __fill && !__counter[__i].empty()) {
|
|
__counter[__i].merge(__carry, __comp);
|
|
__carry.swap(__counter[__i++]);
|
|
}
|
|
__carry.swap(__counter[__i]);
|
|
if (__i == __fill) ++__fill;
|
|
}
|
|
|
|
for (int __i = 1; __i < __fill; ++__i)
|
|
__counter[__i].merge(__counter[__i-1], __comp);
|
|
swap(__counter[__fill-1]);
|
|
}
|
|
}
|
|
|
|
} // namespace std
|
|
|
|
#endif /* __GLIBCPP_INTERNAL_LIST_H */
|
|
|
|
// vi:set ts=2 sw=2:
|
|
// Local Variables:
|
|
// mode:C++
|
|
// End:
|