1// -*- C++ -*-
2
3// Copyright (C) 2005, 2006 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 find_fn_imps.hpp
44 * Contains an implementation class for a base of binomial heaps.
45 */
46
47PB_DS_CLASS_T_DEC
48inline typename PB_DS_CLASS_C_DEC::const_reference
49PB_DS_CLASS_C_DEC::
50top() const
51{
52  _GLIBCXX_DEBUG_ONLY(assert_valid(false);)
53    _GLIBCXX_DEBUG_ASSERT(!base_type::empty());
54
55  if (m_p_max == NULL)
56    const_cast<PB_DS_CLASS_C_DEC* >(this)->find_max();
57
58  _GLIBCXX_DEBUG_ASSERT(m_p_max != NULL);
59  return m_p_max->m_value;
60}
61
62PB_DS_CLASS_T_DEC
63void
64PB_DS_CLASS_C_DEC::
65find_max()
66{
67  node_pointer p_cur = base_type::m_p_root;
68
69  m_p_max = p_cur;
70
71  while (p_cur != NULL)
72    {
73      if (Cmp_Fn::operator()(m_p_max->m_value, p_cur->m_value))
74	m_p_max = p_cur;
75
76      p_cur = p_cur->m_p_next_sibling;
77    }
78}
79
80