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4569a895 AT |
1 | // -*- C++ -*- |
2 | ||
83ffe9cd | 3 | // Copyright (C) 2005-2023 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. | |
19 | ||
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 | /** | |
37 | * @file iterator.hpp | |
38 | * Contains an iterator_ class used for ranging over the elements of the | |
574dfb67 JW |
39 | * table. |
40 | * | |
41 | * This file is intended to be included inside a class definition, with | |
42 | * PB_DS_CLASS_C_DEC defined to the name of the enclosing class. | |
4569a895 AT |
43 | */ |
44 | ||
574dfb67 | 45 | #ifdef PB_DS_CLASS_C_DEC |
30a96b3b BK |
46 | /// Range-type iterator. |
47 | class iterator_ | |
48 | : public const_iterator_ | |
4569a895 | 49 | { |
4569a895 | 50 | public: |
30a96b3b | 51 | /// Category. |
4569a895 AT |
52 | typedef std::forward_iterator_tag iterator_category; |
53 | ||
30a96b3b | 54 | /// Difference type. |
a345e45d | 55 | typedef typename _Alloc::difference_type difference_type; |
4569a895 | 56 | |
30a96b3b | 57 | /// Iterator's value type. |
4569a895 AT |
58 | typedef value_type_ value_type; |
59 | ||
30a96b3b | 60 | /// Iterator's pointer type. |
4569a895 AT |
61 | typedef pointer_ pointer; |
62 | ||
30a96b3b | 63 | /// Iterator's const pointer type. |
4569a895 AT |
64 | typedef const_pointer_ const_pointer; |
65 | ||
30a96b3b | 66 | /// Iterator's reference type. |
4569a895 AT |
67 | typedef reference_ reference; |
68 | ||
30a96b3b | 69 | /// Iterator's const reference type. |
4569a895 AT |
70 | typedef const_reference_ const_reference; |
71 | ||
30a96b3b | 72 | /// Default constructor. |
4569a895 AT |
73 | inline |
74 | iterator_() | |
30a96b3b | 75 | : const_iterator_(0, PB_DS_GEN_POS(), 0) { } |
4569a895 | 76 | |
30a96b3b | 77 | /// Conversion to a point-type iterator. |
4569a895 AT |
78 | inline |
79 | operator point_iterator_() | |
30a96b3b | 80 | { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); } |
4569a895 | 81 | |
30a96b3b | 82 | /// Conversion to a point-type iterator. |
4569a895 AT |
83 | inline |
84 | operator const point_iterator_() const | |
30a96b3b | 85 | { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); } |
4569a895 | 86 | |
30a96b3b BK |
87 | /// Access. |
88 | pointer | |
4569a895 AT |
89 | operator->() const |
90 | { | |
8fc81078 | 91 | _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); |
4569a895 AT |
92 | return (const_cast<pointer>(base_type::m_p_value)); |
93 | } | |
94 | ||
30a96b3b BK |
95 | /// Access. |
96 | reference | |
4569a895 AT |
97 | operator*() const |
98 | { | |
8fc81078 | 99 | _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); |
4569a895 AT |
100 | return (const_cast<reference>(*base_type::m_p_value)); |
101 | } | |
102 | ||
30a96b3b BK |
103 | /// Increments. |
104 | iterator_& | |
4569a895 AT |
105 | operator++() |
106 | { | |
107 | base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); | |
30a96b3b | 108 | return *this; |
4569a895 AT |
109 | } |
110 | ||
30a96b3b BK |
111 | /// Increments. |
112 | iterator_ | |
4569a895 AT |
113 | operator++(int) |
114 | { | |
115 | iterator_ ret =* this; | |
4569a895 | 116 | base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); |
30a96b3b | 117 | return ret; |
4569a895 AT |
118 | } |
119 | ||
120 | protected: | |
121 | typedef const_iterator_ base_type; | |
122 | ||
4569a895 AT |
123 | /** |
124 | * Constructor used by the table to initiate the generalized | |
125 | * pointer and position (e.g., this is called from within a find() | |
126 | * of a table. | |
127 | * */ | |
128 | inline | |
30a96b3b BK |
129 | iterator_(pointer p_value, PB_DS_GEN_POS pos, PB_DS_CLASS_C_DEC* p_tbl) |
130 | : const_iterator_(p_value, pos, p_tbl) | |
4569a895 AT |
131 | { } |
132 | ||
133 | friend class PB_DS_CLASS_C_DEC; | |
134 | }; | |
574dfb67 | 135 | #endif |