--- /dev/null
+// Singly-linked list implementation -*- C++ -*-
+
+// Copyright (C) 2001, 2002, 2004, 2005, 2007, 2008, 2009
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/*
+ * Copyright (c) 1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ */
+
+/** @file ext/slist
+ * This file is a GNU extension to the Standard C++ Library (possibly
+ * containing extensions from the HP/SGI STL subset).
+ */
+
+#ifndef _SLIST
+#define _SLIST 1
+
+#include <algorithm>
+#include <bits/allocator.h>
+#include <bits/stl_construct.h>
+#include <bits/stl_uninitialized.h>
+#include <bits/concept_check.h>
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ using std::size_t;
+ using std::ptrdiff_t;
+ using std::_Construct;
+ using std::_Destroy;
+ using std::allocator;
+ using std::__true_type;
+ using std::__false_type;
+
+ struct _Slist_node_base
+ {
+ _Slist_node_base* _M_next;
+ };
+
+ inline _Slist_node_base*
+ __slist_make_link(_Slist_node_base* __prev_node,
+ _Slist_node_base* __new_node)
+ {
+ __new_node->_M_next = __prev_node->_M_next;
+ __prev_node->_M_next = __new_node;
+ return __new_node;
+ }
+
+ inline _Slist_node_base*
+ __slist_previous(_Slist_node_base* __head,
+ const _Slist_node_base* __node)
+ {
+ while (__head && __head->_M_next != __node)
+ __head = __head->_M_next;
+ return __head;
+ }
+
+ inline const _Slist_node_base*
+ __slist_previous(const _Slist_node_base* __head,
+ const _Slist_node_base* __node)
+ {
+ while (__head && __head->_M_next != __node)
+ __head = __head->_M_next;
+ return __head;
+ }
+
+ inline void
+ __slist_splice_after(_Slist_node_base* __pos,
+ _Slist_node_base* __before_first,
+ _Slist_node_base* __before_last)
+ {
+ if (__pos != __before_first && __pos != __before_last)
+ {
+ _Slist_node_base* __first = __before_first->_M_next;
+ _Slist_node_base* __after = __pos->_M_next;
+ __before_first->_M_next = __before_last->_M_next;
+ __pos->_M_next = __first;
+ __before_last->_M_next = __after;
+ }
+ }
+
+ inline void
+ __slist_splice_after(_Slist_node_base* __pos, _Slist_node_base* __head)
+ {
+ _Slist_node_base* __before_last = __slist_previous(__head, 0);
+ if (__before_last != __head)
+ {
+ _Slist_node_base* __after = __pos->_M_next;
+ __pos->_M_next = __head->_M_next;
+ __head->_M_next = 0;
+ __before_last->_M_next = __after;
+ }
+ }
+
+ inline _Slist_node_base*
+ __slist_reverse(_Slist_node_base* __node)
+ {
+ _Slist_node_base* __result = __node;
+ __node = __node->_M_next;
+ __result->_M_next = 0;
+ while(__node)
+ {
+ _Slist_node_base* __next = __node->_M_next;
+ __node->_M_next = __result;
+ __result = __node;
+ __node = __next;
+ }
+ return __result;
+ }
+
+ inline size_t
+ __slist_size(_Slist_node_base* __node)
+ {
+ size_t __result = 0;
+ for (; __node != 0; __node = __node->_M_next)
+ ++__result;
+ return __result;
+ }
+
+ template <class _Tp>
+ struct _Slist_node : public _Slist_node_base
+ {
+ _Tp _M_data;
+ };
+
+ struct _Slist_iterator_base
+ {
+ typedef size_t size_type;
+ typedef ptrdiff_t difference_type;
+ typedef std::forward_iterator_tag iterator_category;
+
+ _Slist_node_base* _M_node;
+
+ _Slist_iterator_base(_Slist_node_base* __x)
+ : _M_node(__x) {}
+
+ void
+ _M_incr()
+ { _M_node = _M_node->_M_next; }
+
+ bool
+ operator==(const _Slist_iterator_base& __x) const
+ { return _M_node == __x._M_node; }
+
+ bool
+ operator!=(const _Slist_iterator_base& __x) const
+ { return _M_node != __x._M_node; }
+ };
+
+ template <class _Tp, class _Ref, class _Ptr>
+ struct _Slist_iterator : public _Slist_iterator_base
+ {
+ typedef _Slist_iterator<_Tp, _Tp&, _Tp*> iterator;
+ typedef _Slist_iterator<_Tp, const _Tp&, const _Tp*> const_iterator;
+ typedef _Slist_iterator<_Tp, _Ref, _Ptr> _Self;
+
+ typedef _Tp value_type;
+ typedef _Ptr pointer;
+ typedef _Ref reference;
+ typedef _Slist_node<_Tp> _Node;
+
+ explicit
+ _Slist_iterator(_Node* __x)
+ : _Slist_iterator_base(__x) {}
+
+ _Slist_iterator()
+ : _Slist_iterator_base(0) {}
+
+ _Slist_iterator(const iterator& __x)
+ : _Slist_iterator_base(__x._M_node) {}
+
+ reference
+ operator*() const
+ { return ((_Node*) _M_node)->_M_data; }
+
+ pointer
+ operator->() const
+ { return &(operator*()); }
+
+ _Self&
+ operator++()
+ {
+ _M_incr();
+ return *this;
+ }
+
+ _Self
+ operator++(int)
+ {
+ _Self __tmp = *this;
+ _M_incr();
+ return __tmp;
+ }
+ };
+
+ template <class _Tp, class _Alloc>
+ struct _Slist_base
+ : public _Alloc::template rebind<_Slist_node<_Tp> >::other
+ {
+ typedef typename _Alloc::template rebind<_Slist_node<_Tp> >::other
+ _Node_alloc;
+ typedef _Alloc allocator_type;
+
+ allocator_type
+ get_allocator() const
+ { return *static_cast<const _Node_alloc*>(this); }
+
+ _Slist_base(const allocator_type& __a)
+ : _Node_alloc(__a)
+ { this->_M_head._M_next = 0; }
+
+ ~_Slist_base()
+ { _M_erase_after(&this->_M_head, 0); }
+
+ protected:
+ _Slist_node_base _M_head;
+
+ _Slist_node<_Tp>*
+ _M_get_node()
+ { return _Node_alloc::allocate(1); }
+
+ void
+ _M_put_node(_Slist_node<_Tp>* __p)
+ { _Node_alloc::deallocate(__p, 1); }
+
+ protected:
+ _Slist_node_base* _M_erase_after(_Slist_node_base* __pos)
+ {
+ _Slist_node<_Tp>* __next = (_Slist_node<_Tp>*) (__pos->_M_next);
+ _Slist_node_base* __next_next = __next->_M_next;
+ __pos->_M_next = __next_next;
+ get_allocator().destroy(&__next->_M_data);
+ _M_put_node(__next);
+ return __next_next;
+ }
+ _Slist_node_base* _M_erase_after(_Slist_node_base*, _Slist_node_base*);
+ };
+
+ template <class _Tp, class _Alloc>
+ _Slist_node_base*
+ _Slist_base<_Tp,_Alloc>::_M_erase_after(_Slist_node_base* __before_first,
+ _Slist_node_base* __last_node)
+ {
+ _Slist_node<_Tp>* __cur = (_Slist_node<_Tp>*) (__before_first->_M_next);
+ while (__cur != __last_node)
+ {
+ _Slist_node<_Tp>* __tmp = __cur;
+ __cur = (_Slist_node<_Tp>*) __cur->_M_next;
+ get_allocator().destroy(&__tmp->_M_data);
+ _M_put_node(__tmp);
+ }
+ __before_first->_M_next = __last_node;
+ return __last_node;
+ }
+
+ /**
+ * This is an SGI extension.
+ * @ingroup SGIextensions
+ * @doctodo
+ */
+ template <class _Tp, class _Alloc = allocator<_Tp> >
+ class slist : private _Slist_base<_Tp,_Alloc>
+ {
+ // concept requirements
+ __glibcxx_class_requires(_Tp, _SGIAssignableConcept)
+
+ private:
+ typedef _Slist_base<_Tp,_Alloc> _Base;
+
+ public:
+ typedef _Tp value_type;
+ typedef value_type* pointer;
+ typedef const value_type* const_pointer;
+ typedef value_type& reference;
+ typedef const value_type& const_reference;
+ typedef size_t size_type;
+ typedef ptrdiff_t difference_type;
+
+ typedef _Slist_iterator<_Tp, _Tp&, _Tp*> iterator;
+ typedef _Slist_iterator<_Tp, const _Tp&, const _Tp*> const_iterator;
+
+ typedef typename _Base::allocator_type allocator_type;
+
+ allocator_type
+ get_allocator() const
+ { return _Base::get_allocator(); }
+
+ private:
+ typedef _Slist_node<_Tp> _Node;
+ typedef _Slist_node_base _Node_base;
+ typedef _Slist_iterator_base _Iterator_base;
+
+ _Node*
+ _M_create_node(const value_type& __x)
+ {
+ _Node* __node = this->_M_get_node();
+ __try
+ {
+ get_allocator().construct(&__node->_M_data, __x);
+ __node->_M_next = 0;
+ }
+ __catch(...)
+ {
+ this->_M_put_node(__node);
+ __throw_exception_again;
+ }
+ return __node;
+ }
+
+ _Node*
+ _M_create_node()
+ {
+ _Node* __node = this->_M_get_node();
+ __try
+ {
+ get_allocator().construct(&__node->_M_data, value_type());
+ __node->_M_next = 0;
+ }
+ __catch(...)
+ {
+ this->_M_put_node(__node);
+ __throw_exception_again;
+ }
+ return __node;
+ }
+
+ public:
+ explicit
+ slist(const allocator_type& __a = allocator_type())
+ : _Base(__a) {}
+
+ slist(size_type __n, const value_type& __x,
+ const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ { _M_insert_after_fill(&this->_M_head, __n, __x); }
+
+ explicit
+ slist(size_type __n)
+ : _Base(allocator_type())
+ { _M_insert_after_fill(&this->_M_head, __n, value_type()); }
+
+ // We don't need any dispatching tricks here, because
+ // _M_insert_after_range already does them.
+ template <class _InputIterator>
+ slist(_InputIterator __first, _InputIterator __last,
+ const allocator_type& __a = allocator_type())
+ : _Base(__a)
+ { _M_insert_after_range(&this->_M_head, __first, __last); }
+
+ slist(const slist& __x)
+ : _Base(__x.get_allocator())
+ { _M_insert_after_range(&this->_M_head, __x.begin(), __x.end()); }
+
+ slist&
+ operator= (const slist& __x);
+
+ ~slist() {}
+
+ public:
+ // assign(), a generalized assignment member function. Two
+ // versions: one that takes a count, and one that takes a range.
+ // The range version is a member template, so we dispatch on whether
+ // or not the type is an integer.
+
+ void
+ assign(size_type __n, const _Tp& __val)
+ { _M_fill_assign(__n, __val); }
+
+ void
+ _M_fill_assign(size_type __n, const _Tp& __val);
+
+ template <class _InputIterator>
+ void
+ assign(_InputIterator __first, _InputIterator __last)
+ {
+ typedef typename std::__is_integer<_InputIterator>::__type _Integral;
+ _M_assign_dispatch(__first, __last, _Integral());
+ }
+
+ template <class _Integer>
+ void
+ _M_assign_dispatch(_Integer __n, _Integer __val, __true_type)
+ { _M_fill_assign((size_type) __n, (_Tp) __val); }
+
+ template <class _InputIterator>
+ void
+ _M_assign_dispatch(_InputIterator __first, _InputIterator __last,
+ __false_type);
+
+ public:
+
+ iterator
+ begin()
+ { return iterator((_Node*)this->_M_head._M_next); }
+
+ const_iterator
+ begin() const
+ { return const_iterator((_Node*)this->_M_head._M_next);}
+
+ iterator
+ end()
+ { return iterator(0); }
+
+ const_iterator
+ end() const
+ { return const_iterator(0); }
+
+ // Experimental new feature: before_begin() returns a
+ // non-dereferenceable iterator that, when incremented, yields
+ // begin(). This iterator may be used as the argument to
+ // insert_after, erase_after, etc. Note that even for an empty
+ // slist, before_begin() is not the same iterator as end(). It
+ // is always necessary to increment before_begin() at least once to
+ // obtain end().
+ iterator
+ before_begin()
+ { return iterator((_Node*) &this->_M_head); }
+
+ const_iterator
+ before_begin() const
+ { return const_iterator((_Node*) &this->_M_head); }
+
+ size_type
+ size() const
+ { return __slist_size(this->_M_head._M_next); }
+
+ size_type
+ max_size() const
+ { return size_type(-1); }
+
+ bool
+ empty() const
+ { return this->_M_head._M_next == 0; }
+
+ void
+ swap(slist& __x)
+ { std::swap(this->_M_head._M_next, __x._M_head._M_next); }
+
+ public:
+
+ reference
+ front()
+ { return ((_Node*) this->_M_head._M_next)->_M_data; }
+
+ const_reference
+ front() const
+ { return ((_Node*) this->_M_head._M_next)->_M_data; }
+
+ void
+ push_front(const value_type& __x)
+ { __slist_make_link(&this->_M_head, _M_create_node(__x)); }
+
+ void
+ push_front()
+ { __slist_make_link(&this->_M_head, _M_create_node()); }
+
+ void
+ pop_front()
+ {
+ _Node* __node = (_Node*) this->_M_head._M_next;
+ this->_M_head._M_next = __node->_M_next;
+ get_allocator().destroy(&__node->_M_data);
+ this->_M_put_node(__node);
+ }
+
+ iterator
+ previous(const_iterator __pos)
+ { return iterator((_Node*) __slist_previous(&this->_M_head,
+ __pos._M_node)); }
+
+ const_iterator
+ previous(const_iterator __pos) const
+ { return const_iterator((_Node*) __slist_previous(&this->_M_head,
+ __pos._M_node)); }
+
+ private:
+ _Node*
+ _M_insert_after(_Node_base* __pos, const value_type& __x)
+ { return (_Node*) (__slist_make_link(__pos, _M_create_node(__x))); }
+
+ _Node*
+ _M_insert_after(_Node_base* __pos)
+ { return (_Node*) (__slist_make_link(__pos, _M_create_node())); }
+
+ void
+ _M_insert_after_fill(_Node_base* __pos,
+ size_type __n, const value_type& __x)
+ {
+ for (size_type __i = 0; __i < __n; ++__i)
+ __pos = __slist_make_link(__pos, _M_create_node(__x));
+ }
+
+ // Check whether it's an integral type. If so, it's not an iterator.
+ template <class _InIterator>
+ void
+ _M_insert_after_range(_Node_base* __pos,
+ _InIterator __first, _InIterator __last)
+ {
+ 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,
+ __true_type)
+ { _M_insert_after_fill(__pos, __n, __x); }
+
+ template <class _InIterator>
+ void
+ _M_insert_after_range(_Node_base* __pos,
+ _InIterator __first, _InIterator __last,
+ __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,
+ __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;
+ typedef output_iterator_tag iterator_category;
+ typedef void value_type;
+ typedef void difference_type;
+ typedef void pointer;
+ typedef void reference;
+
+ insert_iterator(_Container& __x, typename _Container::iterator __i)
+ : container(&__x)
+ {
+ if (__i == __x.begin())
+ iter = __x.before_begin();
+ else
+ iter = __x.previous(__i);
+ }
+
+ insert_iterator<_Container>&
+ operator=(const typename _Container::value_type& __value)
+ {
+ iter = container->insert_after(iter, __value);
+ return *this;
+ }
+
+ insert_iterator<_Container>&
+ operator*()
+ { return *this; }
+
+ insert_iterator<_Container>&
+ operator++()
+ { return *this; }
+
+ insert_iterator<_Container>&
+ operator++(int)
+ { return *this; }
+ };
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif
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