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4569a895 AT |
1 | // -*- C++ -*- |
2 | ||
a5544970 | 3 | // Copyright (C) 2005-2019 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 | ||
30a96b3b BK |
42 | /// Range-type iterator. |
43 | class iterator_ | |
44 | : public 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 | 68 | /// Default constructor. |
4569a895 AT |
69 | inline |
70 | iterator_() | |
30a96b3b | 71 | : const_iterator_(0, PB_DS_GEN_POS(), 0) { } |
4569a895 | 72 | |
30a96b3b | 73 | /// Conversion to a point-type iterator. |
4569a895 AT |
74 | inline |
75 | operator point_iterator_() | |
30a96b3b | 76 | { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); } |
4569a895 | 77 | |
30a96b3b | 78 | /// Conversion to a point-type iterator. |
4569a895 AT |
79 | inline |
80 | operator const point_iterator_() const | |
30a96b3b | 81 | { return point_iterator_(const_cast<pointer>(const_iterator_::m_p_value)); } |
4569a895 | 82 | |
30a96b3b BK |
83 | /// Access. |
84 | pointer | |
4569a895 AT |
85 | operator->() const |
86 | { | |
8fc81078 | 87 | _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); |
4569a895 AT |
88 | return (const_cast<pointer>(base_type::m_p_value)); |
89 | } | |
90 | ||
30a96b3b BK |
91 | /// Access. |
92 | reference | |
4569a895 AT |
93 | operator*() const |
94 | { | |
8fc81078 | 95 | _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0); |
4569a895 AT |
96 | return (const_cast<reference>(*base_type::m_p_value)); |
97 | } | |
98 | ||
30a96b3b BK |
99 | /// Increments. |
100 | iterator_& | |
4569a895 AT |
101 | operator++() |
102 | { | |
103 | base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); | |
30a96b3b | 104 | return *this; |
4569a895 AT |
105 | } |
106 | ||
30a96b3b BK |
107 | /// Increments. |
108 | iterator_ | |
4569a895 AT |
109 | operator++(int) |
110 | { | |
111 | iterator_ ret =* this; | |
4569a895 | 112 | base_type::m_p_tbl->inc_it_state(base_type::m_p_value, base_type::m_pos); |
30a96b3b | 113 | return ret; |
4569a895 AT |
114 | } |
115 | ||
116 | protected: | |
117 | typedef const_iterator_ base_type; | |
118 | ||
4569a895 AT |
119 | /** |
120 | * Constructor used by the table to initiate the generalized | |
121 | * pointer and position (e.g., this is called from within a find() | |
122 | * of a table. | |
123 | * */ | |
124 | inline | |
30a96b3b BK |
125 | iterator_(pointer p_value, PB_DS_GEN_POS pos, PB_DS_CLASS_C_DEC* p_tbl) |
126 | : const_iterator_(p_value, pos, p_tbl) | |
4569a895 AT |
127 | { } |
128 | ||
129 | friend class PB_DS_CLASS_C_DEC; | |
130 | }; |