libstdc++
rc_binomial_heap_/debug_fn_imps.hpp
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1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2017 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 rc_binomial_heap_/debug_fn_imps.hpp
38  * Contains an implementation for rc_binomial_heap_.
39  */
40 
41 #ifdef _GLIBCXX_DEBUG
42 
43 PB_DS_CLASS_T_DEC
44 void
45 PB_DS_CLASS_C_DEC::
46 assert_valid(const char* __file, int __line) const
47 {
48  base_type::assert_valid(false, __file, __line);
49  if (!base_type::empty())
50  {
51  PB_DS_DEBUG_VERIFY(base_type::m_p_max != 0);
52  base_type::assert_max(__file, __line);
53  }
54 
55  m_rc.assert_valid(__file, __line);
56 
57  if (m_rc.empty())
58  {
59  base_type::assert_valid(true, __file, __line);
60  PB_DS_DEBUG_VERIFY(next_2_pointer(base_type::m_p_root) == 0);
61  return;
62  }
63 
64  node_const_pointer p_nd = next_2_pointer(base_type::m_p_root);
65  typename rc_t::const_iterator it = m_rc.end();
66  --it;
67 
68  while (p_nd != 0)
69  {
70  PB_DS_DEBUG_VERIFY(*it == p_nd);
71  node_const_pointer p_next = p_nd->m_p_next_sibling;
72  PB_DS_DEBUG_VERIFY(p_next != 0);
73  PB_DS_DEBUG_VERIFY(p_nd->m_metadata == p_next->m_metadata);
74  PB_DS_DEBUG_VERIFY(p_next->m_p_next_sibling == 0 ||
75  p_next->m_metadata < p_next->m_p_next_sibling->m_metadata);
76 
77  --it;
78  p_nd = next_2_pointer(next_after_0_pointer(p_nd));
79  }
80  PB_DS_DEBUG_VERIFY(it + 1 == m_rc.begin());
81 }
82 
83 PB_DS_CLASS_T_DEC
84 typename PB_DS_CLASS_C_DEC::node_const_pointer
85 PB_DS_CLASS_C_DEC::
86 next_2_pointer(node_const_pointer p_nd)
87 {
88  if (p_nd == 0)
89  return 0;
90 
91  node_pointer p_next = p_nd->m_p_next_sibling;
92 
93  if (p_next == 0)
94  return 0;
95 
96  if (p_nd->m_metadata == p_next->m_metadata)
97  return p_nd;
98 
99  return next_2_pointer(p_next);
100 }
101 
102 PB_DS_CLASS_T_DEC
103 typename PB_DS_CLASS_C_DEC::node_const_pointer
104 PB_DS_CLASS_C_DEC::
105 next_after_0_pointer(node_const_pointer p_nd)
106 {
107  if (p_nd == 0)
108  return 0;
109 
110  node_pointer p_next = p_nd->m_p_next_sibling;
111 
112  if (p_next == 0)
113  return 0;
114 
115  if (p_nd->m_metadata < p_next->m_metadata)
116  return p_next;
117 
118  return next_after_0_pointer(p_next);
119 }
120 
121 #endif