libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2020 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 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