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[thirdparty/gcc.git] / libstdc++-v3 / include / ext / pb_ds / detail / left_child_next_sibling_heap_ / iterators_fn_imps.hpp
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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 iterators_fn_imps.hpp
44 * Contains an implementation class for left_child_next_sibling_heap_.
45 */
46
47PB_DS_CLASS_T_DEC
48inline typename PB_DS_CLASS_C_DEC::iterator
49PB_DS_CLASS_C_DEC::
50begin()
51{
52 node_pointer p_nd = m_p_root;
53
54 if (p_nd == NULL)
55 return (iterator(NULL));
56
57 while (p_nd->m_p_l_child != NULL)
58 p_nd = p_nd->m_p_l_child;
59
60 return (iterator(p_nd));
61}
62
63PB_DS_CLASS_T_DEC
64inline typename PB_DS_CLASS_C_DEC::const_iterator
65PB_DS_CLASS_C_DEC::
66begin() const
67{
68 node_pointer p_nd = m_p_root;
69
70 if (p_nd == NULL)
71 return (const_iterator(NULL));
72
73 while (p_nd->m_p_l_child != NULL)
74 p_nd = p_nd->m_p_l_child;
75
76 return (const_iterator(p_nd));
77}
78
79PB_DS_CLASS_T_DEC
80inline typename PB_DS_CLASS_C_DEC::iterator
81PB_DS_CLASS_C_DEC::
82end()
83{
84 return (iterator(NULL));
85}
86
87PB_DS_CLASS_T_DEC
88inline typename PB_DS_CLASS_C_DEC::const_iterator
89PB_DS_CLASS_C_DEC::
90end() const
91{
92 return (const_iterator(NULL));
93}
94