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1 | // -*- C++ -*- |
2 | ||
748086b7 | 3 | // Copyright (C) 2005, 2006, 2009 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 | |
39 | * table. | |
40 | */ | |
41 | ||
42 | // Range-type iterator. | |
43 | class iterator_ : | |
44 | public const_iterator_ | |
45 | ||
46 | { | |
47 | ||
48 | public: | |
49 | ||
50 | // Category. | |
51 | typedef std::forward_iterator_tag iterator_category; | |
52 | ||
53 | // Difference type. | |
54 | typedef typename Allocator::difference_type difference_type; | |
55 | ||
56 | // Iterator's value type. | |
57 | typedef value_type_ value_type; | |
58 | ||
59 | // Iterator's pointer type. | |
60 | typedef pointer_ pointer; | |
61 | ||
62 | // Iterator's const pointer type. | |
63 | typedef const_pointer_ const_pointer; | |
64 | ||
65 | // Iterator's reference type. | |
66 | typedef reference_ reference; | |
67 | ||
68 | // Iterator's const reference type. | |
69 | typedef const_reference_ const_reference; | |
70 | ||
71 | public: | |
72 | ||
73 | // Default constructor. | |
74 | inline | |
75 | iterator_() | |
76 | ||
8fc81078 | 77 | : const_iterator_(0, PB_DS_GEN_POS(), 0) |
4569a895 AT |
78 | { } |
79 | ||
80 | // Conversion to a point-type iterator. | |
81 | inline | |
82 | operator point_iterator_() | |
83 | { | |
84 | return (point_iterator_( | |
85 | const_cast<pointer>(const_iterator_::m_p_value))); | |
86 | } | |
87 | ||
88 | // Conversion to a point-type iterator. | |
89 | inline | |
90 | operator const point_iterator_() const | |
91 | { | |
92 | return (point_iterator_( | |
93 | const_cast<pointer>(const_iterator_::m_p_value))); | |
94 | } | |
95 | ||
96 | // Access. | |
97 | inline pointer | |
98 | operator->() const | |
99 | { | |
8fc81078 | 100 | _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); |
4569a895 AT |
101 | |
102 | return (const_cast<pointer>(base_type::m_p_value)); | |
103 | } | |
104 | ||
105 | // Access. | |
106 | inline reference | |
107 | operator*() const | |
108 | { | |
8fc81078 | 109 | _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); |
4569a895 AT |
110 | |
111 | return (const_cast<reference>(*base_type::m_p_value)); | |
112 | } | |
113 | ||
114 | // Increments. | |
115 | inline iterator_& | |
116 | operator++() | |
117 | { | |
118 | base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); | |
119 | ||
120 | return (*this); | |
121 | } | |
122 | ||
123 | // Increments. | |
124 | inline iterator_ | |
125 | operator++(int) | |
126 | { | |
127 | iterator_ ret =* this; | |
128 | ||
129 | base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); | |
130 | ||
131 | return (ret); | |
132 | } | |
133 | ||
134 | protected: | |
135 | typedef const_iterator_ base_type; | |
136 | ||
137 | protected: | |
138 | ||
139 | /** | |
140 | * Constructor used by the table to initiate the generalized | |
141 | * pointer and position (e.g., this is called from within a find() | |
142 | * of a table. | |
143 | * */ | |
144 | inline | |
145 | iterator_(pointer p_value, PB_DS_GEN_POS pos, PB_DS_CLASS_C_DEC* p_tbl) : const_iterator_(p_value, pos, p_tbl) | |
146 | { } | |
147 | ||
148 | friend class PB_DS_CLASS_C_DEC; | |
149 | }; | |
150 |