1// -*- C++ -*-
2
3// Copyright (C) 2005, 2006 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the terms
7// of the GNU General Public License as published by the Free Software
8// Foundation; either version 2, or (at your option) any later
9// version.
10
11// This library is distributed in the hope that it will be useful, but
12// WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14// General Public License for more details.
15
16// You should have received a copy of the GNU General Public License
17// along with this library; see the file COPYING.  If not, write to
18// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
19// MA 02111-1307, USA.
20
21// As a special exception, you may use this file as part of a free
22// software library without restriction.  Specifically, if other files
23// instantiate templates or use macros or inline functions from this
24// file, or you compile this file and link it with other files to
25// produce an executable, this file does not by itself cause the
26// resulting executable to be covered by the GNU General Public
27// License.  This exception does not however invalidate any other
28// reasons why the executable file might be covered by the GNU General
29// Public License.
30
31// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
32
33// Permission to use, copy, modify, sell, and distribute this software
34// is hereby granted without fee, provided that the above copyright
35// notice appears in all copies, and that both that copyright notice
36// and this permission notice appear in supporting documentation. None
37// of the above authors, nor IBM Haifa Research Laboratories, make any
38// representation about the suitability of this software for any
39// purpose. It is provided "as is" without express or implied
40// warranty.
41
42/**
43 * @file node.hpp
44 * Contains an implementation struct for this type of heap's node.
45 */
46
47#ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
48#define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
49
50#include <ext/pb_ds/detail/left_child_next_sibling_heap_/null_metadata.hpp>
51
52namespace pb_ds
53{
54  namespace detail
55  {
56
57    template<typename Value_Type, typename Metadata_Type, class Allocator>
58    struct left_child_next_sibling_heap_node_
59    {
60    private:
61      typedef
62      left_child_next_sibling_heap_node_<
63      Value_Type,
64      Metadata_Type,
65      Allocator>
66      this_type;
67
68    public:
69      typedef typename Allocator::size_type size_type;
70
71      typedef
72      typename Allocator::template rebind<
73	this_type>::other::pointer
74      node_pointer;
75
76      typedef Value_Type value_type;
77
78      typedef Metadata_Type metadata_type;
79
80    public:
81      value_type m_value;
82
83      metadata_type m_metadata;
84
85      node_pointer m_p_l_child;
86
87      node_pointer m_p_next_sibling;
88
89      node_pointer m_p_prev_or_parent;
90    };
91
92    template<typename Value_Type, class Allocator>
93    struct left_child_next_sibling_heap_node_<
94      Value_Type,
95      null_left_child_next_sibling_heap_node_metadata,
96      Allocator>
97    {
98    private:
99      typedef
100      left_child_next_sibling_heap_node_<
101      Value_Type,
102      null_left_child_next_sibling_heap_node_metadata,
103      Allocator>
104      this_type;
105
106    public:
107      typedef typename Allocator::size_type size_type;
108
109      typedef
110      typename Allocator::template rebind<
111	this_type>::other::pointer
112      node_pointer;
113
114      typedef Value_Type value_type;
115
116    public:
117      value_type m_value;
118
119      node_pointer m_p_l_child;
120
121      node_pointer m_p_next_sibling;
122
123      node_pointer m_p_prev_or_parent;
124    };
125
126  } // namespace detail
127} // namespace pb_ds
128
129#endif // #ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
130