libstdc++
rc_binomial_heap_/debug_fn_imps.hpp
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1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2022 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
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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 PB_DS_CLASS_C_DEC
42 
43 #ifdef _GLIBCXX_DEBUG
44 
45 PB_DS_CLASS_T_DEC
46 void
47 PB_DS_CLASS_C_DEC::
48 assert_valid(const char* __file, int __line) const
49 {
50  base_type::assert_valid(false, __file, __line);
51  if (!base_type::empty())
52  {
53  PB_DS_DEBUG_VERIFY(base_type::m_p_max != 0);
54  base_type::assert_max(__file, __line);
55  }
56 
57  m_rc.assert_valid(__file, __line);
58 
59  if (m_rc.empty())
60  {
61  base_type::assert_valid(true, __file, __line);
62  PB_DS_DEBUG_VERIFY(next_2_pointer(base_type::m_p_root) == 0);
63  return;
64  }
65 
66  node_const_pointer p_nd = next_2_pointer(base_type::m_p_root);
67  typename rc_t::const_iterator it = m_rc.end();
68  --it;
69 
70  while (p_nd != 0)
71  {
72  PB_DS_DEBUG_VERIFY(*it == p_nd);
73  node_const_pointer p_next = p_nd->m_p_next_sibling;
74  PB_DS_DEBUG_VERIFY(p_next != 0);
75  PB_DS_DEBUG_VERIFY(p_nd->m_metadata == p_next->m_metadata);
76  PB_DS_DEBUG_VERIFY(p_next->m_p_next_sibling == 0 ||
77  p_next->m_metadata < p_next->m_p_next_sibling->m_metadata);
78 
79  --it;
80  p_nd = next_2_pointer(next_after_0_pointer(p_nd));
81  }
82  PB_DS_DEBUG_VERIFY(it + 1 == m_rc.begin());
83 }
84 
85 PB_DS_CLASS_T_DEC
86 typename PB_DS_CLASS_C_DEC::node_const_pointer
87 PB_DS_CLASS_C_DEC::
88 next_2_pointer(node_const_pointer p_nd)
89 {
90  if (p_nd == 0)
91  return 0;
92 
93  node_pointer p_next = p_nd->m_p_next_sibling;
94 
95  if (p_next == 0)
96  return 0;
97 
98  if (p_nd->m_metadata == p_next->m_metadata)
99  return p_nd;
100 
101  return next_2_pointer(p_next);
102 }
103 
104 PB_DS_CLASS_T_DEC
105 typename PB_DS_CLASS_C_DEC::node_const_pointer
106 PB_DS_CLASS_C_DEC::
107 next_after_0_pointer(node_const_pointer p_nd)
108 {
109  if (p_nd == 0)
110  return 0;
111 
112  node_pointer p_next = p_nd->m_p_next_sibling;
113 
114  if (p_next == 0)
115  return 0;
116 
117  if (p_nd->m_metadata < p_next->m_metadata)
118  return p_next;
119 
120  return next_after_0_pointer(p_next);
121 }
122 
123 #endif
124 #endif