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4569a895 AT |
1 | // -*- C++ -*- |
2 | ||
d652f226 | 3 | // Copyright (C) 2005, 2006, 2009, 2010 Free Software Foundation, Inc. |
4569a895 AT |
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 | |
748086b7 | 8 | // Foundation; either version 3, or (at your option) any later |
4569a895 AT |
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 | ||
748086b7 JJ |
16 | // Under Section 7 of GPL version 3, you are granted additional |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
4569a895 | 19 | |
748086b7 JJ |
20 | // You should have received a copy of the GNU General Public License and |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
4569a895 AT |
24 | |
25 | // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. | |
26 | ||
27 | // Permission to use, copy, modify, sell, and distribute this software | |
28 | // is hereby granted without fee, provided that the above copyright | |
29 | // notice appears in all copies, and that both that copyright notice | |
30 | // and this permission notice appear in supporting documentation. None | |
31 | // of the above authors, nor IBM Haifa Research Laboratories, make any | |
32 | // representation about the suitability of this software for any | |
33 | // purpose. It is provided "as is" without express or implied | |
34 | // warranty. | |
35 | ||
36 | /** | |
a345e45d | 37 | * @file unordered_iterator/const_iterator.hpp |
4569a895 | 38 | * Contains an iterator class used for const ranging over the elements of the |
a345e45d | 39 | * table. |
4569a895 AT |
40 | */ |
41 | ||
30a96b3b BK |
42 | /// Const range-type iterator. |
43 | class const_iterator_ | |
44 | : public point_const_iterator_ | |
4569a895 | 45 | { |
4569a895 | 46 | public: |
30a96b3b | 47 | /// Category. |
4569a895 AT |
48 | typedef std::forward_iterator_tag iterator_category; |
49 | ||
30a96b3b | 50 | /// Difference type. |
a345e45d | 51 | typedef typename _Alloc::difference_type difference_type; |
4569a895 | 52 | |
30a96b3b | 53 | /// Iterator's value type. |
4569a895 AT |
54 | typedef value_type_ value_type; |
55 | ||
30a96b3b | 56 | /// Iterator's pointer type. |
4569a895 AT |
57 | typedef pointer_ pointer; |
58 | ||
30a96b3b | 59 | /// Iterator's const pointer type. |
4569a895 AT |
60 | typedef const_pointer_ const_pointer; |
61 | ||
30a96b3b | 62 | /// Iterator's reference type. |
4569a895 AT |
63 | typedef reference_ reference; |
64 | ||
30a96b3b | 65 | /// Iterator's const reference type. |
4569a895 AT |
66 | typedef const_reference_ const_reference; |
67 | ||
30a96b3b BK |
68 | /// Default constructor. |
69 | const_iterator_() : m_p_tbl(0) | |
4569a895 AT |
70 | { } |
71 | ||
30a96b3b BK |
72 | /// Increments. |
73 | const_iterator_& | |
4569a895 AT |
74 | operator++() |
75 | { | |
76 | m_p_tbl->inc_it_state(base_type::m_p_value, m_pos); | |
30a96b3b | 77 | return *this; |
4569a895 AT |
78 | } |
79 | ||
30a96b3b BK |
80 | /// Increments. |
81 | const_iterator_ | |
4569a895 AT |
82 | operator++(int) |
83 | { | |
84 | const_iterator_ ret =* this; | |
4569a895 | 85 | m_p_tbl->inc_it_state(base_type::m_p_value, m_pos); |
30a96b3b | 86 | return ret; |
4569a895 AT |
87 | } |
88 | ||
89 | protected: | |
a345e45d | 90 | typedef point_const_iterator_ base_type; |
4569a895 | 91 | |
4569a895 AT |
92 | /** |
93 | * Constructor used by the table to initiate the generalized | |
94 | * pointer and position (e.g., this is called from within a find() | |
95 | * of a table. | |
96 | * */ | |
30a96b3b BK |
97 | const_iterator_(const_pointer_ p_value, PB_DS_GEN_POS pos, |
98 | const PB_DS_CLASS_C_DEC* p_tbl) | |
99 | : point_const_iterator_(p_value), m_p_tbl(p_tbl), m_pos(pos) | |
4569a895 AT |
100 | { } |
101 | ||
4569a895 AT |
102 | /** |
103 | * Pointer to the table object which created the iterator (used for | |
104 | * incrementing its position. | |
105 | * */ | |
106 | const PB_DS_CLASS_C_DEC* m_p_tbl; | |
107 | ||
108 | PB_DS_GEN_POS m_pos; | |
109 | ||
110 | friend class PB_DS_CLASS_C_DEC; | |
111 | }; |