1// -*- C++ -*-
2
3// Copyright (C) 2005, 2006, 2009 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 3, 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// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23// <http://www.gnu.org/licenses/>.
24
25// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
26
27// Permission to use, copy, modify, sell, and distribute this software
28// is hereby granted without fee, provided that the above copyright
29// notice appears in all copies, and that both that copyright notice
30// and this permission notice appear in supporting documentation. None
31// of the above authors, nor IBM Haifa Research Laboratories, make any
32// representation about the suitability of this software for any
33// purpose. It is provided "as is" without express or implied
34// warranty.
35
36/**
37 * @file node.hpp
38 * Contains an implementation struct for this type of heap's node.
39 */
40
41#ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
42#define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
43
44#include <ext/pb_ds/detail/left_child_next_sibling_heap_/null_metadata.hpp>
45
46namespace __gnu_pbds
47{
48  namespace detail
49  {
50
51    template<typename Value_Type, typename Metadata_Type, class Allocator>
52    struct left_child_next_sibling_heap_node_
53    {
54    private:
55      typedef
56      left_child_next_sibling_heap_node_<
57      Value_Type,
58      Metadata_Type,
59      Allocator>
60      this_type;
61
62    public:
63      typedef typename Allocator::size_type size_type;
64
65      typedef
66      typename Allocator::template rebind<
67	this_type>::other::pointer
68      node_pointer;
69
70      typedef Value_Type value_type;
71
72      typedef Metadata_Type metadata_type;
73
74    public:
75      value_type m_value;
76
77      metadata_type m_metadata;
78
79      node_pointer m_p_l_child;
80
81      node_pointer m_p_next_sibling;
82
83      node_pointer m_p_prev_or_parent;
84    };
85
86    template<typename Value_Type, class Allocator>
87    struct left_child_next_sibling_heap_node_<
88      Value_Type,
89      null_left_child_next_sibling_heap_node_metadata,
90      Allocator>
91    {
92    private:
93      typedef
94      left_child_next_sibling_heap_node_<
95      Value_Type,
96      null_left_child_next_sibling_heap_node_metadata,
97      Allocator>
98      this_type;
99
100    public:
101      typedef typename Allocator::size_type size_type;
102
103      typedef
104      typename Allocator::template rebind<
105	this_type>::other::pointer
106      node_pointer;
107
108      typedef Value_Type value_type;
109
110    public:
111      value_type m_value;
112
113      node_pointer m_p_l_child;
114
115      node_pointer m_p_next_sibling;
116
117      node_pointer m_p_prev_or_parent;
118    };
119
120  } // namespace detail
121} // namespace __gnu_pbds
122
123#endif // #ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_NODE_HPP
124