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      1 // -*- C++ -*-
      2 
      3 // Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
      4 // Free Software Foundation, Inc.
      5 //
      6 // This file is part of the GNU ISO C++ Library.  This library is free
      7 // software; you can redistribute it and/or modify it under the terms
      8 // of the GNU General Public License as published by the Free Software
      9 // Foundation; either version 3, or (at your option) any later
     10 // version.
     11 
     12 // This library is distributed in the hope that it will be useful, but
     13 // WITHOUT ANY WARRANTY; without even the implied warranty of
     14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15 // General Public License for more details.
     16 
     17 // Under Section 7 of GPL version 3, you are granted additional
     18 // permissions described in the GCC Runtime Library Exception, version
     19 // 3.1, as published by the Free Software Foundation.
     20 
     21 // You should have received a copy of the GNU General Public License and
     22 // a copy of the GCC Runtime Library Exception along with this program;
     23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     24 // <http://www.gnu.org/licenses/>.
     25 
     26 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
     27 
     28 // Permission to use, copy, modify, sell, and distribute this software
     29 // is hereby granted without fee, provided that the above copyright
     30 // notice appears in all copies, and that both that copyright notice
     31 // and this permission notice appear in supporting documentation. None
     32 // of the above authors, nor IBM Haifa Research Laboratories, make any
     33 // representation about the suitability of this software for any
     34 // purpose. It is provided "as is" without express or implied
     35 // warranty.
     36 
     37 /**
     38  * @file debug_fn_imps.hpp
     39  * Contains an implementation class for a base of binomial heaps.
     40  */
     41 
     42 #ifdef _GLIBCXX_DEBUG
     43 
     44 PB_DS_CLASS_T_DEC
     45 void
     46 PB_DS_CLASS_C_DEC::
     47 assert_valid(bool strictly_binomial) const
     48 {
     49   base_type::assert_valid();
     50   assert_node_consistent(base_type::m_p_root, strictly_binomial, true);
     51   assert_max();
     52 }
     53 
     54 PB_DS_CLASS_T_DEC
     55 void
     56 PB_DS_CLASS_C_DEC::
     57 assert_max() const
     58 {
     59   if (m_p_max == 0)
     60     return;
     61   _GLIBCXX_DEBUG_ASSERT(base_type::parent(m_p_max) == 0);
     62   for (const_iterator it = base_type::begin(); it != base_type::end(); ++it)
     63     _GLIBCXX_DEBUG_ASSERT(!Cmp_Fn::operator()(m_p_max->m_value,
     64 					      it.m_p_nd->m_value));
     65 }
     66 
     67 PB_DS_CLASS_T_DEC
     68 void
     69 PB_DS_CLASS_C_DEC::
     70 assert_node_consistent(const_node_pointer p_nd, bool strictly_binomial,
     71 		       bool increasing) const
     72 {
     73   _GLIBCXX_DEBUG_ASSERT(increasing || strictly_binomial);
     74   base_type::assert_node_consistent(p_nd, false);
     75   if (p_nd == 0)
     76     return;
     77   _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata == base_type::degree(p_nd));
     78   _GLIBCXX_DEBUG_ASSERT(base_type::size_under_node(p_nd) ==
     79 		   static_cast<size_type>(1 << p_nd->m_metadata));
     80   assert_node_consistent(p_nd->m_p_next_sibling, strictly_binomial, increasing);
     81   assert_node_consistent(p_nd->m_p_l_child, true, false);
     82   if (p_nd->m_p_next_sibling != 0)
     83     {
     84       if (increasing)
     85 	{
     86 	  if (strictly_binomial)
     87 	    _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
     88 				  < p_nd->m_p_next_sibling->m_metadata);
     89 	  else
     90 	    _GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
     91 				  <= p_nd->m_p_next_sibling->m_metadata);
     92 	}
     93       else
     94 	_GLIBCXX_DEBUG_ASSERT(p_nd->m_metadata
     95 			      > p_nd->m_p_next_sibling->m_metadata);
     96     }
     97 }
     98 
     99 #endif
    100