1// -*- C++ -*-
2
3// Copyright (C) 2005 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
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 2, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING.  If not, write to the Free
18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19// USA.
20
21// As a special exception, you may use this file as part of a free software
22// library without restriction.  Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License.  This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
31
32// Permission to use, copy, modify, sell, and distribute this software
33// is hereby granted without fee, provided that the above copyright
34// notice appears in all copies, and that both that copyright notice and
35// this permission notice appear in supporting documentation. None of
36// the above authors, nor IBM Haifa Research Laboratories, make any
37// representation about the suitability of this software for any
38// purpose. It is provided "as is" without express or implied warranty.
39
40/**
41 * @file const_iterator.hpp
42 * Contains an iterator class used for const ranging over the elements of the
43 *   table.
44 */
45
46class const_iterator_ :
47  public const_find_iterator_
48
49{
50
51public:
52
53  typedef std::forward_iterator_tag iterator_category;
54
55  typedef typename Allocator::difference_type difference_type;
56
57  typedef mapped_value_type value_type;
58
59  typedef mapped_pointer pointer;
60
61  typedef const_mapped_pointer const_pointer;
62
63  typedef mapped_reference reference;
64
65  typedef const_mapped_reference const_reference;
66
67public:
68
69  inline
70  const_iterator_()
71
72    : m_p_tbl(NULL)
73  { }
74
75  inline const_iterator_&
76  operator++()
77  {
78    m_p_tbl->inc_it_state(my_base::m_p_value, m_pos);
79
80    return (*this);
81  }
82
83  inline const_iterator_
84  operator++(int)
85  {
86    const_iterator_ ret =* this;
87
88    m_p_tbl->inc_it_state(my_base::m_p_value, m_pos);
89
90    return (ret);
91  }
92
93protected:
94
95  typedef const_find_iterator_ my_base;
96
97protected:
98
99  /**
100   * Constructor used by the table to initiate the generalized
101   *   pointer and position (e.g., this is called from within a find()
102   *   of a table.
103   **/
104  inline
105  const_iterator_(const_mapped_pointer p_value, PB_ASSOC_GEN_POS pos, const PB_ASSOC_CLASS_C_DEC* p_tbl) : const_find_iterator_(p_value),
106													   m_p_tbl(p_tbl),
107													   m_pos(pos)
108  { }
109
110protected:
111
112  /**
113   * Pointer to the table object which created the iterator (used for
114   *   incrementing its position.
115   **/
116  const PB_ASSOC_CLASS_C_DEC* m_p_tbl;
117
118  PB_ASSOC_GEN_POS m_pos;
119
120  friend class PB_ASSOC_CLASS_C_DEC;
121};
122
123