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 debug_fn_imps.hpp
44 * Contains an implementation for rb_tree_.
45 */
46
47#ifdef _GLIBCXX_DEBUG
48
49PB_DS_CLASS_T_DEC
50typename PB_DS_CLASS_C_DEC::size_type
51PB_DS_CLASS_C_DEC::
52assert_node_consistent(const node_pointer p_nd) const
53{
54  if (p_nd == NULL)
55    return 1;
56
57  const size_type l_height = assert_node_consistent(p_nd->m_p_left);
58  const size_type r_height = assert_node_consistent(p_nd->m_p_right);
59  if (p_nd->m_red)
60    {
61      _GLIBCXX_DEBUG_ASSERT(is_effectively_black(p_nd->m_p_left));
62      _GLIBCXX_DEBUG_ASSERT(is_effectively_black(p_nd->m_p_right));
63    }
64  _GLIBCXX_DEBUG_ASSERT(l_height == r_height);
65  return (p_nd->m_red ? 0 : 1) + l_height;
66}
67
68PB_DS_CLASS_T_DEC
69void
70PB_DS_CLASS_C_DEC::
71assert_valid() const
72{
73  base_type::assert_valid();
74  const node_pointer p_head = base_type::m_p_head;
75  _GLIBCXX_DEBUG_ASSERT(p_head->m_red);
76  if (p_head->m_p_parent != NULL)
77    {
78      _GLIBCXX_DEBUG_ASSERT(!p_head->m_p_parent->m_red);
79      assert_node_consistent(p_head->m_p_parent);
80    }
81}
82
83#endif
84
85