text: // -*- C++ -*-
  
  // Copyright (C) 2005-2014 Free Software Foundation, Inc.
  //
  // This file is part of the GNU ISO C++ Library.  This library is free
  // software; you can redistribute it and/or modify it under the terms
  // of the GNU General Public License as published by the Free Software
  // Foundation; either version 3, or (at your option) any later
  // version.
  
  // This library is distributed in the hope that it will be useful, but
  // WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  // General Public License for more details.
  
  // Under Section 7 of GPL version 3, you are granted additional
  // permissions described in the GCC Runtime Library Exception, version
  // 3.1, as published by the Free Software Foundation.
  
  // You should have received a copy of the GNU General Public License and
  // a copy of the GCC Runtime Library Exception along with this program;
  // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  // <http://www.gnu.org/licenses/>.
  
  // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  
  // Permission to use, copy, modify, sell, and distribute this software
  // is hereby granted without fee, provided that the above copyright
  // notice appears in all copies, and that both that copyright notice
  // and this permission notice appear in supporting documentation. None
  // of the above authors, nor IBM Haifa Research Laboratories, make any
  // representation about the suitability of this software for any
  // purpose. It is provided "as is" without express or implied
  // warranty.
  
  /**
   * @file rc_binomial_heap_/debug_fn_imps.hpp
   * Contains an implementation for rc_binomial_heap_.
   */
  
  #ifdef _GLIBCXX_DEBUG
  
  PB_DS_CLASS_T_DEC
  void
  PB_DS_CLASS_C_DEC::
  assert_valid(const char* __file, int __line) const
  {
    base_type::assert_valid(false, __file, __line);
    if (!base_type::empty())
      {
        PB_DS_DEBUG_VERIFY(base_type::m_p_max != 0);
        base_type::assert_max(__file, __line);
      }
  
    m_rc.assert_valid(__file, __line);
  
    if (m_rc.empty())
      {
        base_type::assert_valid(true, __file, __line);
        PB_DS_DEBUG_VERIFY(next_2_pointer(base_type::m_p_root) == 0);
        return;
      }
  
    node_const_pointer p_nd = next_2_pointer(base_type::m_p_root);
    typename rc_t::const_iterator it = m_rc.end();
    --it;
  
    while (p_nd != 0)
      {
        PB_DS_DEBUG_VERIFY(*it == p_nd);
        node_const_pointer p_next = p_nd->m_p_next_sibling;
        PB_DS_DEBUG_VERIFY(p_next != 0);
        PB_DS_DEBUG_VERIFY(p_nd->m_metadata == p_next->m_metadata);
        PB_DS_DEBUG_VERIFY(p_next->m_p_next_sibling == 0 ||
  		       p_next->m_metadata < p_next->m_p_next_sibling->m_metadata);
  
        --it;
        p_nd = next_2_pointer(next_after_0_pointer(p_nd));
      }
    PB_DS_DEBUG_VERIFY(it + 1 == m_rc.begin());
  }
  
  PB_DS_CLASS_T_DEC
  typename PB_DS_CLASS_C_DEC::node_const_pointer
  PB_DS_CLASS_C_DEC::
  next_2_pointer(node_const_pointer p_nd)
  {
    if (p_nd == 0)
      return 0;
  
    node_pointer p_next = p_nd->m_p_next_sibling;
  
    if (p_next == 0)
      return 0;
  
    if (p_nd->m_metadata == p_next->m_metadata)
      return p_nd;
  
    return next_2_pointer(p_next);
  }
  
  PB_DS_CLASS_T_DEC
  typename PB_DS_CLASS_C_DEC::node_const_pointer
  PB_DS_CLASS_C_DEC::
  next_after_0_pointer(node_const_pointer p_nd)
  {
    if (p_nd == 0)
      return 0;
  
    node_pointer p_next = p_nd->m_p_next_sibling;
  
    if (p_next == 0)
      return 0;
  
    if (p_nd->m_metadata < p_next->m_metadata)
      return p_next;
  
    return next_after_0_pointer(p_next);
  }
  
  #endif 
  