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1 | // -*- C++ -*- |
2 | ||
3 | // Copyright (C) 2005 Free Software Foundation, Inc. | |
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 | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 2, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING. If not, write to the Free | |
83f51799 | 18 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
fd1e1726 BK |
19 | // USA. |
20 | ||
21 | // As a special exception, you may use this file as part of a free software | |
22 | // library without restriction. Specifically, if other files instantiate | |
23 | // templates or use macros or inline functions from this file, or you compile | |
24 | // this file and link it with other files to produce an executable, this | |
25 | // file does not by itself cause the resulting executable to be covered by | |
26 | // the GNU General Public License. This exception does not however | |
27 | // invalidate any other reasons why the executable file might be covered by | |
28 | // the GNU General Public License. | |
29 | ||
30 | // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. | |
31 | ||
32 | // Permission to use, copy, modify, sell, and distribute this software | |
33 | // is hereby granted without fee, provided that the above copyright | |
34 | // notice appears in all copies, and that both that copyright notice and | |
35 | // this permission notice appear in supporting documentation. None of | |
36 | // the above authors, nor IBM Haifa Research Laboratories, make any | |
37 | // representation about the suitability of this software for any | |
38 | // purpose. It is provided "as is" without express or implied warranty. | |
39 | ||
40 | /** | |
41 | * @file it_.hpp | |
42 | * Contains an it_ for an adapter of mapping levels. | |
43 | */ | |
44 | ||
45 | #define PB_ASSOC_IT_C_DEC \ | |
46 | it_< \ | |
47 | It0, \ | |
48 | It1, \ | |
49 | Has_Data, \ | |
50 | Const> | |
51 | ||
52 | #define PB_ASSOC_OIT_T_DEC \ | |
53 | template<class OIt0, class OIt1, bool OHas_Data, bool OConst> | |
54 | ||
55 | #define PB_ASSOC_OIT_C_DEC \ | |
56 | it_< \ | |
57 | OIt0, \ | |
58 | OIt1, \ | |
59 | OHas_Data, \ | |
60 | OConst> | |
61 | ||
62 | template<class It0, class It1, bool Has_Data, bool Const> | |
63 | class it_ | |
64 | { | |
65 | public: | |
66 | ||
67 | typedef typename it_value_type_traits_t::value_type value_type; | |
68 | ||
69 | typedef typename it_value_type_traits_t::reference reference; | |
70 | ||
71 | typedef | |
72 | typename it_value_type_traits_t::const_reference | |
73 | const_reference; | |
74 | ||
75 | typedef typename it_value_type_traits_t::pointer pointer; | |
76 | ||
77 | typedef typename it_value_type_traits_t::const_pointer const_pointer; | |
78 | ||
79 | public: | |
80 | inline | |
81 | it_(It0 it0 = It0(), | |
82 | It0 end_it0 = It0(), | |
83 | It1 it1 = It1()) : m_it0(it0), | |
84 | m_end_it0(end_it0), | |
85 | m_it1(it1) | |
86 | { } | |
87 | ||
88 | inline | |
89 | it_(const PB_ASSOC_IT_C_DEC& r_other) : m_it0(r_other.m_it0), | |
90 | m_end_it0(r_other.m_end_it0), | |
91 | m_it1(r_other.m_it1) | |
92 | { } | |
93 | ||
94 | PB_ASSOC_OIT_T_DEC | |
95 | inline | |
96 | it_(const PB_ASSOC_OIT_C_DEC& r_other) : m_it0(r_other.m_it0), | |
97 | m_end_it0(r_other.m_end_it0), | |
98 | m_it1(r_other.m_it1) | |
99 | { } | |
100 | ||
101 | inline bool | |
102 | operator==(const PB_ASSOC_IT_C_DEC& r_other) const | |
103 | { | |
104 | if (m_it0 != r_other.m_it0) | |
105 | return (false); | |
106 | ||
107 | if (m_it0 == m_end_it0) | |
108 | return (true); | |
109 | ||
110 | return (m_it1 == r_other.m_it1); | |
111 | } | |
112 | ||
113 | inline bool | |
114 | operator!=(const PB_ASSOC_IT_C_DEC& r_other) const | |
115 | { | |
116 | return (!operator==(r_other)); | |
117 | } | |
118 | ||
119 | inline PB_ASSOC_IT_C_DEC& | |
120 | operator++() | |
121 | { | |
122 | ++m_it1; | |
123 | ||
124 | if (m_it1 == m_it0->second.end()) | |
125 | do | |
126 | { | |
127 | ++m_it0; | |
128 | } | |
129 | while (m_it0 != m_end_it0&& m_it0->second.empty()); | |
130 | ||
131 | if (m_it0 != m_end_it0&& !m_it0->second.empty()) | |
132 | m_it1 = m_it0->second.begin(); | |
133 | ||
134 | return (*this); | |
135 | } | |
136 | ||
137 | inline PB_ASSOC_IT_C_DEC | |
138 | operator++(int) | |
139 | { | |
140 | PB_ASSOC_IT_C_DEC ret =* this; | |
141 | ||
142 | operator++(); | |
143 | ||
144 | return (ret); | |
145 | } | |
146 | ||
147 | inline const_pointer | |
148 | operator->() const | |
149 | { | |
150 | it_value_type_traits_t::make_valid(m_value_type_holder, m_it0->first, * m_it1); | |
151 | ||
152 | return (it_value_type_traits_t::recast(m_value_type_holder)); | |
153 | } | |
154 | ||
155 | inline pointer | |
156 | operator->() | |
157 | { | |
158 | // Tmp Ami PB_ASSOC_STATIC_ASSERT(non_const, !Const); | |
159 | ||
160 | it_value_type_traits_t::make_valid(m_value_type_holder, m_it0->first, * m_it1); | |
161 | ||
162 | return (it_value_type_traits_t::recast(m_value_type_holder)); | |
163 | } | |
164 | ||
165 | inline const_reference | |
166 | operator*() const | |
167 | { | |
168 | return (*operator->()); | |
169 | } | |
170 | ||
171 | inline reference | |
172 | operator*() | |
173 | { | |
174 | PB_ASSOC_STATIC_ASSERT(non_const, !Const); | |
175 | ||
176 | return (*operator->()); | |
177 | } | |
178 | ||
179 | public: | |
180 | mutable It0 m_it0; | |
181 | It0 m_end_it0; | |
182 | ||
183 | mutable It1 m_it1; | |
184 | ||
185 | int_to_type<Has_Data> m_has_data; | |
186 | ||
187 | private: | |
188 | mutable typename it_value_type_traits_t::value_type_holder m_value_type_holder; | |
189 | }; | |
190 | ||
191 | #undef PB_ASSOC_IT_C_DEC | |
192 | ||
193 | #undef PB_ASSOC_OIT_T_DEC | |
194 | ||
195 | #undef PB_ASSOC_OIT_C_DEC | |
196 |