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

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2007, 2008 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 class for a base of binomial heaps.
  45  */
  46
  47 #ifdef _GLIBCXX_DEBUG
  48
  49 PB_DS_CLASS_T_DEC
  50 void
  51 PB_DS_CLASS_C_DEC::
  52 assert_valid(bool strictly_binomial) const
  53 {
  54   base_type::assert_valid();
  55   assert_node_consistent(base_type::m_p_root, strictly_binomial, true);
  56   assert_max();
  57 }
  58
  59 PB_DS_CLASS_T_DEC
  60 void
  61 PB_DS_CLASS_C_DEC::
  62 assert_max() const
  63 {
  64   if (m_p_max == NULL)
  65     return;
  66   _GLIBCXX_DEBUG_ASSERT(base_type::parent(m_p_max) == NULL);
  67   for (const_iterator it = base_type::begin(); it != base_type::end(); ++it)
  68     _GLIBCXX_DEBUG_ASSERT(!Cmp_Fn::operator()(m_p_max->m_value,
  69                                               it.m_p_nd->m_value));
  70 }
  71
  72 PB_DS_CLASS_T_DEC
  73 void
  74 PB_DS_CLASS_C_DEC::
  75 assert_node_consistent(const_node_pointer p_nd, bool strictly_binomial,
  76                        bool increasing) const
  77 {
  78   _GLIBCXX_DEBUG_ASSERT(increasing || strictly_binomial);
  79   base_type::assert_node_consistent(p_nd, false);
  80   if (p_nd == NULL)
  81     return;
  82   _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata == base_type::degree(p_nd));
  83   _GLIBCXX_DEBUG_ASSERT(base_type::size_under_node(p_nd) ==
  84                    static_cast<size_type>(1 << p_nd->m_metadata));
  85   assert_node_consistent(p_nd->m_p_next_sibling, strictly_binomial, increasing);
  86   assert_node_consistent(p_nd->m_p_l_child, true, false);
  87   if (p_nd->m_p_next_sibling != NULL)
  88     {
  89       if (increasing)
  90         {
  91           if (strictly_binomial)
  92             _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
  93                                   < p_nd->m_p_next_sibling->m_metadata);
  94           else
  95             _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
  96                                   <= p_nd->m_p_next_sibling->m_metadata);
  97         }
  98       else
  99         _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
 100                               > p_nd->m_p_next_sibling->m_metadata);
 101     }
 102 }
 103
 104 #endif