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      1 // -*- C++ -*-
      2 
      3 // Copyright (C) 2005, 2006, 2007, 2008, 2009 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 debug_fn_imps.hpp
     38  * Contains an implementation class for a base of binomial heaps.
     39  */
     40 
     41 #ifdef _GLIBCXX_DEBUG
     42 
     43 PB_DS_CLASS_T_DEC
     44 void
     45 PB_DS_CLASS_C_DEC::
     46 assert_valid(bool strictly_binomial) const
     47 {
     48   base_type::assert_valid();
     49   assert_node_consistent(base_type::m_p_root, strictly_binomial, true);
     50   assert_max();
     51 }
     52 
     53 PB_DS_CLASS_T_DEC
     54 void
     55 PB_DS_CLASS_C_DEC::
     56 assert_max() const
     57 {
     58   if (m_p_max == NULL)
     59     return;
     60   _GLIBCXX_DEBUG_ASSERT(base_type::parent(m_p_max) == NULL);
     61   for (const_iterator it = base_type::begin(); it != base_type::end(); ++it)
     62     _GLIBCXX_DEBUG_ASSERT(!Cmp_Fn::operator()(m_p_max->m_value,
     63 					      it.m_p_nd->m_value));
     64 }
     65 
     66 PB_DS_CLASS_T_DEC
     67 void
     68 PB_DS_CLASS_C_DEC::
     69 assert_node_consistent(const_node_pointer p_nd, bool strictly_binomial,
     70 		       bool increasing) const
     71 {
     72   _GLIBCXX_DEBUG_ASSERT(increasing || strictly_binomial);
     73   base_type::assert_node_consistent(p_nd, false);
     74   if (p_nd == NULL)
     75     return;
     76   _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata == base_type::degree(p_nd));
     77   _GLIBCXX_DEBUG_ASSERT(base_type::size_under_node(p_nd) ==
     78 		   static_cast<size_type>(1 << p_nd->m_metadata));
     79   assert_node_consistent(p_nd->m_p_next_sibling, strictly_binomial, increasing);
     80   assert_node_consistent(p_nd->m_p_l_child, true, false);
     81   if (p_nd->m_p_next_sibling != NULL)
     82     {
     83       if (increasing)
     84 	{
     85 	  if (strictly_binomial)
     86 	    _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
     87 				  < p_nd->m_p_next_sibling->m_metadata);
     88 	  else
     89 	    _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
     90 				  <= p_nd->m_p_next_sibling->m_metadata);
     91 	}
     92       else
     93 	_GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
     94 			      > p_nd->m_p_next_sibling->m_metadata);
     95     }
     96 }
     97 
     98 #endif
     99