1083 lines
29 KiB
C++
1083 lines
29 KiB
C++
// Singly-linked list implementation -*- C++ -*-
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// Copyright (C) 2001-2021 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) 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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*/
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/** @file ext/slist
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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 _SLIST
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#define _SLIST 1
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#include <algorithm>
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#include <bits/allocator.h>
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#include <bits/stl_construct.h>
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#include <bits/stl_uninitialized.h>
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#include <bits/concept_check.h>
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#include <ext/alloc_traits.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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struct _Slist_node_base
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{
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_Slist_node_base* _M_next;
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};
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inline _Slist_node_base*
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__slist_make_link(_Slist_node_base* __prev_node,
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_Slist_node_base* __new_node)
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{
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__new_node->_M_next = __prev_node->_M_next;
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__prev_node->_M_next = __new_node;
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return __new_node;
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}
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inline _Slist_node_base*
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__slist_previous(_Slist_node_base* __head,
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const _Slist_node_base* __node)
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{
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while (__head && __head->_M_next != __node)
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__head = __head->_M_next;
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return __head;
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}
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inline const _Slist_node_base*
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__slist_previous(const _Slist_node_base* __head,
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const _Slist_node_base* __node)
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{
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while (__head && __head->_M_next != __node)
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__head = __head->_M_next;
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return __head;
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}
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inline void
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__slist_splice_after(_Slist_node_base* __pos,
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_Slist_node_base* __before_first,
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_Slist_node_base* __before_last)
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{
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if (__pos != __before_first && __pos != __before_last)
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{
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_Slist_node_base* __first = __before_first->_M_next;
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_Slist_node_base* __after = __pos->_M_next;
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__before_first->_M_next = __before_last->_M_next;
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__pos->_M_next = __first;
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__before_last->_M_next = __after;
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}
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}
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inline void
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__slist_splice_after(_Slist_node_base* __pos, _Slist_node_base* __head)
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{
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_Slist_node_base* __before_last = __slist_previous(__head, 0);
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if (__before_last != __head)
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{
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_Slist_node_base* __after = __pos->_M_next;
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__pos->_M_next = __head->_M_next;
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__head->_M_next = 0;
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__before_last->_M_next = __after;
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}
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}
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inline _Slist_node_base*
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__slist_reverse(_Slist_node_base* __node)
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{
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_Slist_node_base* __result = __node;
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__node = __node->_M_next;
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__result->_M_next = 0;
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while(__node)
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{
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_Slist_node_base* __next = __node->_M_next;
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__node->_M_next = __result;
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__result = __node;
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__node = __next;
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}
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return __result;
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}
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inline std::size_t
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__slist_size(_Slist_node_base* __node)
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{
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std::size_t __result = 0;
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for (; __node != 0; __node = __node->_M_next)
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++__result;
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return __result;
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}
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template <class _Tp>
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struct _Slist_node : public _Slist_node_base
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{
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_Tp _M_data;
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};
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struct _Slist_iterator_base
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{
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typedef std::size_t size_type;
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typedef std::ptrdiff_t difference_type;
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typedef std::forward_iterator_tag iterator_category;
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_Slist_node_base* _M_node;
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_Slist_iterator_base(_Slist_node_base* __x)
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: _M_node(__x) {}
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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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bool
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operator==(const _Slist_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 _Slist_iterator_base& __x) const
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{ return _M_node != __x._M_node; }
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};
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template <class _Tp, class _Ref, class _Ptr>
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struct _Slist_iterator : public _Slist_iterator_base
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{
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typedef _Slist_iterator<_Tp, _Tp&, _Tp*> iterator;
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typedef _Slist_iterator<_Tp, const _Tp&, const _Tp*> const_iterator;
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typedef _Slist_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 _Slist_node<_Tp> _Node;
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explicit
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_Slist_iterator(_Node* __x)
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: _Slist_iterator_base(__x) {}
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_Slist_iterator()
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: _Slist_iterator_base(0) {}
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_Slist_iterator(const iterator& __x)
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: _Slist_iterator_base(__x._M_node) {}
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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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_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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_M_incr();
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return __tmp;
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}
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};
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template <class _Tp, class _Alloc>
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struct _Slist_base
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: public __alloc_traits<_Alloc>::template rebind<_Slist_node<_Tp> >::other
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{
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typedef typename __alloc_traits<_Alloc>::template
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rebind<_Slist_node<_Tp> >::other _Node_alloc;
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typedef _Alloc allocator_type;
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allocator_type
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get_allocator() const
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{ return *static_cast<const _Node_alloc*>(this); }
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_Slist_base(const allocator_type& __a)
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: _Node_alloc(__a)
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{ this->_M_head._M_next = 0; }
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~_Slist_base()
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{ _M_erase_after(&this->_M_head, 0); }
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protected:
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_Slist_node_base _M_head;
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_Slist_node<_Tp>*
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_M_get_node()
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{ return _Node_alloc::allocate(1); }
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void
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_M_put_node(_Slist_node<_Tp>* __p)
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{ _Node_alloc::deallocate(__p, 1); }
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protected:
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_Slist_node_base* _M_erase_after(_Slist_node_base* __pos)
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{
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_Slist_node<_Tp>* __next = (_Slist_node<_Tp>*) (__pos->_M_next);
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_Slist_node_base* __next_next = __next->_M_next;
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__pos->_M_next = __next_next;
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allocator_type __a = get_allocator();
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__alloc_traits<allocator_type>::destroy(__a, &__next->_M_data);
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_M_put_node(__next);
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return __next_next;
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}
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_Slist_node_base* _M_erase_after(_Slist_node_base*, _Slist_node_base*);
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};
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template <class _Tp, class _Alloc>
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_Slist_node_base*
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_Slist_base<_Tp,_Alloc>::_M_erase_after(_Slist_node_base* __before_first,
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_Slist_node_base* __last_node)
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{
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_Slist_node<_Tp>* __cur = (_Slist_node<_Tp>*) (__before_first->_M_next);
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while (__cur != __last_node)
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{
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_Slist_node<_Tp>* __tmp = __cur;
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__cur = (_Slist_node<_Tp>*) __cur->_M_next;
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allocator_type __a = get_allocator();
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__alloc_traits<allocator_type>::destroy(__a, &__tmp->_M_data);
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_M_put_node(__tmp);
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}
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__before_first->_M_next = __last_node;
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return __last_node;
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}
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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 _Tp, class _Alloc = std::allocator<_Tp> >
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class slist : private _Slist_base<_Tp,_Alloc>
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{
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// concept requirements
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__glibcxx_class_requires(_Tp, _SGIAssignableConcept)
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private:
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typedef _Slist_base<_Tp,_Alloc> _Base;
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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 std::size_t size_type;
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typedef std::ptrdiff_t difference_type;
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typedef _Slist_iterator<_Tp, _Tp&, _Tp*> iterator;
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typedef _Slist_iterator<_Tp, const _Tp&, const _Tp*> const_iterator;
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typedef typename _Base::allocator_type allocator_type;
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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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private:
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typedef _Slist_node<_Tp> _Node;
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typedef _Slist_node_base _Node_base;
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typedef _Slist_iterator_base _Iterator_base;
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_Node*
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_M_create_node(const value_type& __x)
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{
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_Node* __node = this->_M_get_node();
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__try
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{
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allocator_type __a = get_allocator();
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__alloc_traits<allocator_type>::construct(__a, &__node->_M_data,
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__x);
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__node->_M_next = 0;
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}
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__catch(...)
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{
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this->_M_put_node(__node);
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__throw_exception_again;
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}
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return __node;
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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* __node = this->_M_get_node();
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__try
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{
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allocator_type __a = get_allocator();
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__alloc_traits<allocator_type>::construct(__a, &__node->_M_data,
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value_type());
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__node->_M_next = 0;
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}
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__catch(...)
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{
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this->_M_put_node(__node);
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__throw_exception_again;
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}
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return __node;
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}
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public:
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explicit
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slist(const allocator_type& __a = allocator_type())
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: _Base(__a) {}
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slist(size_type __n, const value_type& __x,
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const allocator_type& __a = allocator_type())
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: _Base(__a)
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{ _M_insert_after_fill(&this->_M_head, __n, __x); }
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explicit
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slist(size_type __n)
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: _Base(allocator_type())
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{ _M_insert_after_fill(&this->_M_head, __n, value_type()); }
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// We don't need any dispatching tricks here, because
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// _M_insert_after_range already does them.
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template <class _InputIterator>
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slist(_InputIterator __first, _InputIterator __last,
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const allocator_type& __a = allocator_type())
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: _Base(__a)
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{ _M_insert_after_range(&this->_M_head, __first, __last); }
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slist(const slist& __x)
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: _Base(__x.get_allocator())
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{ _M_insert_after_range(&this->_M_head, __x.begin(), __x.end()); }
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slist&
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operator= (const slist& __x);
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~slist() {}
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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 <class _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 std::__is_integer<_InputIterator>::__type _Integral;
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_M_assign_dispatch(__first, __last, _Integral());
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}
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template <class _Integer>
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void
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_M_assign_dispatch(_Integer __n, _Integer __val, std::__true_type)
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{ _M_fill_assign((size_type) __n, (_Tp) __val); }
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template <class _InputIterator>
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void
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_M_assign_dispatch(_InputIterator __first, _InputIterator __last,
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std::__false_type);
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public:
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iterator
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begin()
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{ return iterator((_Node*)this->_M_head._M_next); }
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const_iterator
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begin() const
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{ return const_iterator((_Node*)this->_M_head._M_next);}
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iterator
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end()
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{ return iterator(0); }
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const_iterator
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end() const
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{ return const_iterator(0); }
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// Experimental new feature: before_begin() returns a
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// non-dereferenceable iterator that, when incremented, yields
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// begin(). This iterator may be used as the argument to
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// insert_after, erase_after, etc. Note that even for an empty
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// slist, before_begin() is not the same iterator as end(). It
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// is always necessary to increment before_begin() at least once to
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// obtain end().
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iterator
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before_begin()
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{ return iterator((_Node*) &this->_M_head); }
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const_iterator
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before_begin() const
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{ return const_iterator((_Node*) &this->_M_head); }
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size_type
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size() const
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{ return __slist_size(this->_M_head._M_next); }
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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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_GLIBCXX_NODISCARD bool
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empty() const
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{ return this->_M_head._M_next == 0; }
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void
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swap(slist& __x)
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{ std::swap(this->_M_head._M_next, __x._M_head._M_next); }
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public:
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reference
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front()
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{ return ((_Node*) this->_M_head._M_next)->_M_data; }
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const_reference
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front() const
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{ return ((_Node*) this->_M_head._M_next)->_M_data; }
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void
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push_front(const value_type& __x)
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{ __slist_make_link(&this->_M_head, _M_create_node(__x)); }
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void
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push_front()
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{ __slist_make_link(&this->_M_head, _M_create_node()); }
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void
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pop_front()
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{
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_Node* __node = (_Node*) this->_M_head._M_next;
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this->_M_head._M_next = __node->_M_next;
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allocator_type __a = get_allocator();
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__alloc_traits<allocator_type>::destroy(__a, &__node->_M_data);
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this->_M_put_node(__node);
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}
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iterator
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previous(const_iterator __pos)
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{ return iterator((_Node*) __slist_previous(&this->_M_head,
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__pos._M_node)); }
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const_iterator
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previous(const_iterator __pos) const
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{ return const_iterator((_Node*) __slist_previous(&this->_M_head,
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__pos._M_node)); }
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private:
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_Node*
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_M_insert_after(_Node_base* __pos, const value_type& __x)
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{ return (_Node*) (__slist_make_link(__pos, _M_create_node(__x))); }
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_Node*
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_M_insert_after(_Node_base* __pos)
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{ return (_Node*) (__slist_make_link(__pos, _M_create_node())); }
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void
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_M_insert_after_fill(_Node_base* __pos,
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size_type __n, const value_type& __x)
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{
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for (size_type __i = 0; __i < __n; ++__i)
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__pos = __slist_make_link(__pos, _M_create_node(__x));
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}
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|
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// Check whether it's an integral type. If so, it's not an iterator.
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|
template <class _InIterator>
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void
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_M_insert_after_range(_Node_base* __pos,
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_InIterator __first, _InIterator __last)
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|
{
|
|
typedef typename std::__is_integer<_InIterator>::__type _Integral;
|
|
_M_insert_after_range(__pos, __first, __last, _Integral());
|
|
}
|
|
|
|
template <class _Integer>
|
|
void
|
|
_M_insert_after_range(_Node_base* __pos, _Integer __n, _Integer __x,
|
|
std::__true_type)
|
|
{ _M_insert_after_fill(__pos, __n, __x); }
|
|
|
|
template <class _InIterator>
|
|
void
|
|
_M_insert_after_range(_Node_base* __pos,
|
|
_InIterator __first, _InIterator __last,
|
|
std::__false_type)
|
|
{
|
|
while (__first != __last)
|
|
{
|
|
__pos = __slist_make_link(__pos, _M_create_node(*__first));
|
|
++__first;
|
|
}
|
|
}
|
|
|
|
public:
|
|
iterator
|
|
insert_after(iterator __pos, const value_type& __x)
|
|
{ return iterator(_M_insert_after(__pos._M_node, __x)); }
|
|
|
|
iterator
|
|
insert_after(iterator __pos)
|
|
{ return insert_after(__pos, value_type()); }
|
|
|
|
void
|
|
insert_after(iterator __pos, size_type __n, const value_type& __x)
|
|
{ _M_insert_after_fill(__pos._M_node, __n, __x); }
|
|
|
|
// We don't need any dispatching tricks here, because
|
|
// _M_insert_after_range already does them.
|
|
template <class _InIterator>
|
|
void
|
|
insert_after(iterator __pos, _InIterator __first, _InIterator __last)
|
|
{ _M_insert_after_range(__pos._M_node, __first, __last); }
|
|
|
|
iterator
|
|
insert(iterator __pos, const value_type& __x)
|
|
{ return iterator(_M_insert_after(__slist_previous(&this->_M_head,
|
|
__pos._M_node),
|
|
__x)); }
|
|
|
|
iterator
|
|
insert(iterator __pos)
|
|
{ return iterator(_M_insert_after(__slist_previous(&this->_M_head,
|
|
__pos._M_node),
|
|
value_type())); }
|
|
|
|
void
|
|
insert(iterator __pos, size_type __n, const value_type& __x)
|
|
{ _M_insert_after_fill(__slist_previous(&this->_M_head, __pos._M_node),
|
|
__n, __x); }
|
|
|
|
// We don't need any dispatching tricks here, because
|
|
// _M_insert_after_range already does them.
|
|
template <class _InIterator>
|
|
void
|
|
insert(iterator __pos, _InIterator __first, _InIterator __last)
|
|
{ _M_insert_after_range(__slist_previous(&this->_M_head, __pos._M_node),
|
|
__first, __last); }
|
|
|
|
public:
|
|
iterator
|
|
erase_after(iterator __pos)
|
|
{ return iterator((_Node*) this->_M_erase_after(__pos._M_node)); }
|
|
|
|
iterator
|
|
erase_after(iterator __before_first, iterator __last)
|
|
{
|
|
return iterator((_Node*) this->_M_erase_after(__before_first._M_node,
|
|
__last._M_node));
|
|
}
|
|
|
|
iterator
|
|
erase(iterator __pos)
|
|
{
|
|
return iterator((_Node*) this->_M_erase_after
|
|
(__slist_previous(&this->_M_head, __pos._M_node)));
|
|
}
|
|
|
|
iterator
|
|
erase(iterator __first, iterator __last)
|
|
{
|
|
return iterator((_Node*) this->_M_erase_after
|
|
(__slist_previous(&this->_M_head, __first._M_node),
|
|
__last._M_node));
|
|
}
|
|
|
|
void
|
|
resize(size_type new_size, const _Tp& __x);
|
|
|
|
void
|
|
resize(size_type new_size)
|
|
{ resize(new_size, _Tp()); }
|
|
|
|
void
|
|
clear()
|
|
{ this->_M_erase_after(&this->_M_head, 0); }
|
|
|
|
public:
|
|
// Moves the range [__before_first + 1, __before_last + 1) to *this,
|
|
// inserting it immediately after __pos. This is constant time.
|
|
void
|
|
splice_after(iterator __pos,
|
|
iterator __before_first, iterator __before_last)
|
|
{
|
|
if (__before_first != __before_last)
|
|
__slist_splice_after(__pos._M_node, __before_first._M_node,
|
|
__before_last._M_node);
|
|
}
|
|
|
|
// Moves the element that follows __prev to *this, inserting it
|
|
// immediately after __pos. This is constant time.
|
|
void
|
|
splice_after(iterator __pos, iterator __prev)
|
|
{ __slist_splice_after(__pos._M_node,
|
|
__prev._M_node, __prev._M_node->_M_next); }
|
|
|
|
// Removes all of the elements from the list __x to *this, inserting
|
|
// them immediately after __pos. __x must not be *this. Complexity:
|
|
// linear in __x.size().
|
|
void
|
|
splice_after(iterator __pos, slist& __x)
|
|
{ __slist_splice_after(__pos._M_node, &__x._M_head); }
|
|
|
|
// Linear in distance(begin(), __pos), and linear in __x.size().
|
|
void
|
|
splice(iterator __pos, slist& __x)
|
|
{
|
|
if (__x._M_head._M_next)
|
|
__slist_splice_after(__slist_previous(&this->_M_head, __pos._M_node),
|
|
&__x._M_head,
|
|
__slist_previous(&__x._M_head, 0)); }
|
|
|
|
// Linear in distance(begin(), __pos), and in distance(__x.begin(), __i).
|
|
void
|
|
splice(iterator __pos, slist& __x, iterator __i)
|
|
{ __slist_splice_after(__slist_previous(&this->_M_head, __pos._M_node),
|
|
__slist_previous(&__x._M_head, __i._M_node),
|
|
__i._M_node); }
|
|
|
|
// Linear in distance(begin(), __pos), in distance(__x.begin(), __first),
|
|
// and in distance(__first, __last).
|
|
void
|
|
splice(iterator __pos, slist& __x, iterator __first, iterator __last)
|
|
{
|
|
if (__first != __last)
|
|
__slist_splice_after(__slist_previous(&this->_M_head, __pos._M_node),
|
|
__slist_previous(&__x._M_head, __first._M_node),
|
|
__slist_previous(__first._M_node,
|
|
__last._M_node));
|
|
}
|
|
|
|
public:
|
|
void
|
|
reverse()
|
|
{
|
|
if (this->_M_head._M_next)
|
|
this->_M_head._M_next = __slist_reverse(this->_M_head._M_next);
|
|
}
|
|
|
|
void
|
|
remove(const _Tp& __val);
|
|
|
|
void
|
|
unique();
|
|
|
|
void
|
|
merge(slist& __x);
|
|
|
|
void
|
|
sort();
|
|
|
|
template <class _Predicate>
|
|
void
|
|
remove_if(_Predicate __pred);
|
|
|
|
template <class _BinaryPredicate>
|
|
void
|
|
unique(_BinaryPredicate __pred);
|
|
|
|
template <class _StrictWeakOrdering>
|
|
void
|
|
merge(slist&, _StrictWeakOrdering);
|
|
|
|
template <class _StrictWeakOrdering>
|
|
void
|
|
sort(_StrictWeakOrdering __comp);
|
|
};
|
|
|
|
template <class _Tp, class _Alloc>
|
|
slist<_Tp, _Alloc>&
|
|
slist<_Tp, _Alloc>::operator=(const slist<_Tp, _Alloc>& __x)
|
|
{
|
|
if (&__x != this)
|
|
{
|
|
_Node_base* __p1 = &this->_M_head;
|
|
_Node* __n1 = (_Node*) this->_M_head._M_next;
|
|
const _Node* __n2 = (const _Node*) __x._M_head._M_next;
|
|
while (__n1 && __n2)
|
|
{
|
|
__n1->_M_data = __n2->_M_data;
|
|
__p1 = __n1;
|
|
__n1 = (_Node*) __n1->_M_next;
|
|
__n2 = (const _Node*) __n2->_M_next;
|
|
}
|
|
if (__n2 == 0)
|
|
this->_M_erase_after(__p1, 0);
|
|
else
|
|
_M_insert_after_range(__p1, const_iterator((_Node*)__n2),
|
|
const_iterator(0));
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
void
|
|
slist<_Tp, _Alloc>::_M_fill_assign(size_type __n, const _Tp& __val)
|
|
{
|
|
_Node_base* __prev = &this->_M_head;
|
|
_Node* __node = (_Node*) this->_M_head._M_next;
|
|
for (; __node != 0 && __n > 0; --__n)
|
|
{
|
|
__node->_M_data = __val;
|
|
__prev = __node;
|
|
__node = (_Node*) __node->_M_next;
|
|
}
|
|
if (__n > 0)
|
|
_M_insert_after_fill(__prev, __n, __val);
|
|
else
|
|
this->_M_erase_after(__prev, 0);
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
template <class _InputIterator>
|
|
void
|
|
slist<_Tp, _Alloc>::_M_assign_dispatch(_InputIterator __first,
|
|
_InputIterator __last,
|
|
std::__false_type)
|
|
{
|
|
_Node_base* __prev = &this->_M_head;
|
|
_Node* __node = (_Node*) this->_M_head._M_next;
|
|
while (__node != 0 && __first != __last)
|
|
{
|
|
__node->_M_data = *__first;
|
|
__prev = __node;
|
|
__node = (_Node*) __node->_M_next;
|
|
++__first;
|
|
}
|
|
if (__first != __last)
|
|
_M_insert_after_range(__prev, __first, __last);
|
|
else
|
|
this->_M_erase_after(__prev, 0);
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
inline bool
|
|
operator==(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2)
|
|
{
|
|
typedef typename slist<_Tp,_Alloc>::const_iterator const_iterator;
|
|
const_iterator __end1 = _SL1.end();
|
|
const_iterator __end2 = _SL2.end();
|
|
|
|
const_iterator __i1 = _SL1.begin();
|
|
const_iterator __i2 = _SL2.begin();
|
|
while (__i1 != __end1 && __i2 != __end2 && *__i1 == *__i2)
|
|
{
|
|
++__i1;
|
|
++__i2;
|
|
}
|
|
return __i1 == __end1 && __i2 == __end2;
|
|
}
|
|
|
|
|
|
template <class _Tp, class _Alloc>
|
|
inline bool
|
|
operator<(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2)
|
|
{ return std::lexicographical_compare(_SL1.begin(), _SL1.end(),
|
|
_SL2.begin(), _SL2.end()); }
|
|
|
|
template <class _Tp, class _Alloc>
|
|
inline bool
|
|
operator!=(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2)
|
|
{ return !(_SL1 == _SL2); }
|
|
|
|
template <class _Tp, class _Alloc>
|
|
inline bool
|
|
operator>(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2)
|
|
{ return _SL2 < _SL1; }
|
|
|
|
template <class _Tp, class _Alloc>
|
|
inline bool
|
|
operator<=(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2)
|
|
{ return !(_SL2 < _SL1); }
|
|
|
|
template <class _Tp, class _Alloc>
|
|
inline bool
|
|
operator>=(const slist<_Tp, _Alloc>& _SL1, const slist<_Tp, _Alloc>& _SL2)
|
|
{ return !(_SL1 < _SL2); }
|
|
|
|
template <class _Tp, class _Alloc>
|
|
inline void
|
|
swap(slist<_Tp, _Alloc>& __x, slist<_Tp, _Alloc>& __y)
|
|
{ __x.swap(__y); }
|
|
|
|
template <class _Tp, class _Alloc>
|
|
void
|
|
slist<_Tp, _Alloc>::resize(size_type __len, const _Tp& __x)
|
|
{
|
|
_Node_base* __cur = &this->_M_head;
|
|
while (__cur->_M_next != 0 && __len > 0)
|
|
{
|
|
--__len;
|
|
__cur = __cur->_M_next;
|
|
}
|
|
if (__cur->_M_next)
|
|
this->_M_erase_after(__cur, 0);
|
|
else
|
|
_M_insert_after_fill(__cur, __len, __x);
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
void
|
|
slist<_Tp, _Alloc>::remove(const _Tp& __val)
|
|
{
|
|
_Node_base* __cur = &this->_M_head;
|
|
while (__cur && __cur->_M_next)
|
|
{
|
|
if (((_Node*) __cur->_M_next)->_M_data == __val)
|
|
this->_M_erase_after(__cur);
|
|
else
|
|
__cur = __cur->_M_next;
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
void
|
|
slist<_Tp, _Alloc>::unique()
|
|
{
|
|
_Node_base* __cur = this->_M_head._M_next;
|
|
if (__cur)
|
|
{
|
|
while (__cur->_M_next)
|
|
{
|
|
if (((_Node*)__cur)->_M_data
|
|
== ((_Node*)(__cur->_M_next))->_M_data)
|
|
this->_M_erase_after(__cur);
|
|
else
|
|
__cur = __cur->_M_next;
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
void
|
|
slist<_Tp, _Alloc>::merge(slist<_Tp, _Alloc>& __x)
|
|
{
|
|
_Node_base* __n1 = &this->_M_head;
|
|
while (__n1->_M_next && __x._M_head._M_next)
|
|
{
|
|
if (((_Node*) __x._M_head._M_next)->_M_data
|
|
< ((_Node*) __n1->_M_next)->_M_data)
|
|
__slist_splice_after(__n1, &__x._M_head, __x._M_head._M_next);
|
|
__n1 = __n1->_M_next;
|
|
}
|
|
if (__x._M_head._M_next)
|
|
{
|
|
__n1->_M_next = __x._M_head._M_next;
|
|
__x._M_head._M_next = 0;
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
void
|
|
slist<_Tp, _Alloc>::sort()
|
|
{
|
|
if (this->_M_head._M_next && this->_M_head._M_next->_M_next)
|
|
{
|
|
slist __carry;
|
|
slist __counter[64];
|
|
int __fill = 0;
|
|
while (!empty())
|
|
{
|
|
__slist_splice_after(&__carry._M_head,
|
|
&this->_M_head, this->_M_head._M_next);
|
|
int __i = 0;
|
|
while (__i < __fill && !__counter[__i].empty())
|
|
{
|
|
__counter[__i].merge(__carry);
|
|
__carry.swap(__counter[__i]);
|
|
++__i;
|
|
}
|
|
__carry.swap(__counter[__i]);
|
|
if (__i == __fill)
|
|
++__fill;
|
|
}
|
|
|
|
for (int __i = 1; __i < __fill; ++__i)
|
|
__counter[__i].merge(__counter[__i-1]);
|
|
this->swap(__counter[__fill-1]);
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
template <class _Predicate>
|
|
void slist<_Tp, _Alloc>::remove_if(_Predicate __pred)
|
|
{
|
|
_Node_base* __cur = &this->_M_head;
|
|
while (__cur->_M_next)
|
|
{
|
|
if (__pred(((_Node*) __cur->_M_next)->_M_data))
|
|
this->_M_erase_after(__cur);
|
|
else
|
|
__cur = __cur->_M_next;
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
template <class _BinaryPredicate>
|
|
void
|
|
slist<_Tp, _Alloc>::unique(_BinaryPredicate __pred)
|
|
{
|
|
_Node* __cur = (_Node*) this->_M_head._M_next;
|
|
if (__cur)
|
|
{
|
|
while (__cur->_M_next)
|
|
{
|
|
if (__pred(((_Node*)__cur)->_M_data,
|
|
((_Node*)(__cur->_M_next))->_M_data))
|
|
this->_M_erase_after(__cur);
|
|
else
|
|
__cur = (_Node*) __cur->_M_next;
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
template <class _StrictWeakOrdering>
|
|
void
|
|
slist<_Tp, _Alloc>::merge(slist<_Tp, _Alloc>& __x,
|
|
_StrictWeakOrdering __comp)
|
|
{
|
|
_Node_base* __n1 = &this->_M_head;
|
|
while (__n1->_M_next && __x._M_head._M_next)
|
|
{
|
|
if (__comp(((_Node*) __x._M_head._M_next)->_M_data,
|
|
((_Node*) __n1->_M_next)->_M_data))
|
|
__slist_splice_after(__n1, &__x._M_head, __x._M_head._M_next);
|
|
__n1 = __n1->_M_next;
|
|
}
|
|
if (__x._M_head._M_next)
|
|
{
|
|
__n1->_M_next = __x._M_head._M_next;
|
|
__x._M_head._M_next = 0;
|
|
}
|
|
}
|
|
|
|
template <class _Tp, class _Alloc>
|
|
template <class _StrictWeakOrdering>
|
|
void
|
|
slist<_Tp, _Alloc>::sort(_StrictWeakOrdering __comp)
|
|
{
|
|
if (this->_M_head._M_next && this->_M_head._M_next->_M_next)
|
|
{
|
|
slist __carry;
|
|
slist __counter[64];
|
|
int __fill = 0;
|
|
while (!empty())
|
|
{
|
|
__slist_splice_after(&__carry._M_head,
|
|
&this->_M_head, this->_M_head._M_next);
|
|
int __i = 0;
|
|
while (__i < __fill && !__counter[__i].empty())
|
|
{
|
|
__counter[__i].merge(__carry, __comp);
|
|
__carry.swap(__counter[__i]);
|
|
++__i;
|
|
}
|
|
__carry.swap(__counter[__i]);
|
|
if (__i == __fill)
|
|
++__fill;
|
|
}
|
|
|
|
for (int __i = 1; __i < __fill; ++__i)
|
|
__counter[__i].merge(__counter[__i-1], __comp);
|
|
this->swap(__counter[__fill-1]);
|
|
}
|
|
}
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
// Specialization of insert_iterator so that insertions will be constant
|
|
// time rather than linear time.
|
|
template <class _Tp, class _Alloc>
|
|
class insert_iterator<__gnu_cxx::slist<_Tp, _Alloc> >
|
|
{
|
|
protected:
|
|
typedef __gnu_cxx::slist<_Tp, _Alloc> _Container;
|
|
_Container* container;
|
|
typename _Container::iterator iter;
|
|
|
|
public:
|
|
typedef _Container container_type;
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typedef output_iterator_tag iterator_category;
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typedef void value_type;
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typedef void difference_type;
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|
typedef void pointer;
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|
typedef void reference;
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insert_iterator(_Container& __x, typename _Container::iterator __i)
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|
: container(&__x)
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{
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|
if (__i == __x.begin())
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|
iter = __x.before_begin();
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|
else
|
|
iter = __x.previous(__i);
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|
}
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|
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insert_iterator<_Container>&
|
|
operator=(const typename _Container::value_type& __value)
|
|
{
|
|
iter = container->insert_after(iter, __value);
|
|
return *this;
|
|
}
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|
|
|
insert_iterator<_Container>&
|
|
operator*()
|
|
{ return *this; }
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|
|
|
insert_iterator<_Container>&
|
|
operator++()
|
|
{ return *this; }
|
|
|
|
insert_iterator<_Container>&
|
|
operator++(int)
|
|
{ return *this; }
|
|
};
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|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
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|
} // namespace
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|
|
|
#endif
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