aboutsummaryrefslogtreecommitdiff
path: root/libstdc++-v3/include/ext/pb_ds/detail/unordered_iterator/const_point_iterator.hpp
blob: 180cd4095877f37faa5b2b098d816d9ce63b26a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
// -*- C++ -*-

// Copyright (C) 2005, 2006 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 2, 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.

// You should have received a copy of the GNU General Public License
// along with this library; see the file COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.

// As a special exception, you may use this file as part of a free
// software library without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to
// produce an executable, this file does not by itself cause the
// resulting executable to be covered by the GNU General Public
// License.  This exception does not however invalidate any other
// reasons why the executable file might be covered by the GNU General
// Public License.

// 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 const_point_iterator.hpp
 * Contains an iterator class returned by the tables' const find and insert
 *     methods.
 */

class point_iterator_;

// Const point-type iterator.
class const_point_iterator_
{

public:

  // Category.
  typedef trivial_iterator_tag iterator_category;

  // Difference type.
  typedef trivial_iterator_difference_type difference_type;

  // Iterator's value type.
  typedef value_type_ value_type;

  // Iterator's pointer type.
  typedef pointer_ pointer;

  // Iterator's const pointer type.
  typedef const_pointer_ const_pointer;

  // Iterator's reference type.
  typedef reference_ reference;

  // Iterator's const reference type.
  typedef const_reference_ const_reference;

public:

  inline
  const_point_iterator_(const_pointer p_value) : m_p_value(p_value)
  { }

  // Default constructor.
  inline
  const_point_iterator_()

    : m_p_value(NULL)
  { }

  // Copy constructor.
  inline
  const_point_iterator_(const const_point_iterator_& other)

    : m_p_value(other.m_p_value)
  { }

  // Copy constructor.
  inline
  const_point_iterator_(const point_iterator_& other)

    : m_p_value(other.m_p_value)
  { }

  // Access.
  inline const_pointer
  operator->() const
  {
    PB_DS_DBG_ASSERT(m_p_value != NULL);

    return (m_p_value);
  }

  // Access.
  inline const_reference
  operator*() const
  {
    PB_DS_DBG_ASSERT(m_p_value != NULL);

    return (*m_p_value);
  }

  // Compares content to a different iterator object.
  inline bool
  operator==(const point_iterator_& other) const
  {
    return (m_p_value == other.m_p_value);
  }

  // Compares content to a different iterator object.
  inline bool
  operator==(const const_point_iterator_& other) const
  {
    return (m_p_value == other.m_p_value);
  }

  // Compares content (negatively) to a different iterator object.
  inline bool
  operator!=(const point_iterator_& other) const
  {
    return (m_p_value != other.m_p_value);
  }

  // Compares content (negatively) to a different iterator object.
  inline bool
  operator!=(const const_point_iterator_& other) const
  {
    return (m_p_value != other.m_p_value);
  }

protected:
  const_pointer m_p_value;

  friend class point_iterator_;

  friend class PB_DS_CLASS_C_DEC;
};