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1 | // Boost.Bimap |
2 | // | |
3 | // Copyright (c) 2006-2007 Matias Capeletto | |
4 | // | |
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | ||
9 | /// \file container_adaptor/associative_container_adaptor.hpp | |
10 | /// \brief Container adaptor to build a type that is compliant to the concept of an associative container. | |
11 | ||
12 | #ifndef BOOST_BIMAP_CONTAINER_ADAPTOR_ASSOCIATIVE_CONTAINER_ADAPTOR_HPP | |
13 | #define BOOST_BIMAP_CONTAINER_ADAPTOR_ASSOCIATIVE_CONTAINER_ADAPTOR_HPP | |
14 | ||
15 | #if defined(_MSC_VER) | |
16 | #pragma once | |
17 | #endif | |
18 | ||
19 | #include <boost/config.hpp> | |
20 | ||
21 | #include <utility> | |
22 | ||
23 | #include <boost/mpl/vector.hpp> | |
24 | #include <boost/mpl/if.hpp> | |
25 | #include <boost/mpl/aux_/na.hpp> | |
26 | #include <boost/bimap/container_adaptor/detail/identity_converters.hpp> | |
27 | #include <boost/bimap/container_adaptor/container_adaptor.hpp> | |
28 | #include <boost/call_traits.hpp> | |
29 | ||
30 | namespace boost { | |
31 | namespace bimaps { | |
32 | namespace container_adaptor { | |
33 | ||
34 | #ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
35 | ||
36 | template | |
37 | < | |
38 | class Base, class Iterator, class ConstIterator, class KeyType, | |
39 | class IteratorToBaseConverter, class IteratorFromBaseConverter, | |
40 | class ValueToBaseConverter, class ValueFromBaseConverter, class KeyToBaseConverter, | |
41 | class FunctorsFromDerivedClasses | |
42 | > | |
43 | struct associative_container_adaptor_base | |
44 | { | |
45 | typedef container_adaptor | |
46 | < | |
47 | Base, | |
48 | ||
49 | Iterator, ConstIterator, | |
50 | ||
51 | IteratorToBaseConverter, IteratorFromBaseConverter, | |
52 | ValueToBaseConverter , ValueFromBaseConverter, | |
53 | ||
54 | BOOST_DEDUCED_TYPENAME mpl::push_front< | |
55 | ||
56 | FunctorsFromDerivedClasses, | |
57 | ||
58 | BOOST_DEDUCED_TYPENAME mpl::if_< ::boost::mpl::is_na<KeyToBaseConverter>, | |
59 | // { | |
60 | detail::key_to_base_identity | |
61 | < | |
62 | BOOST_DEDUCED_TYPENAME Base::key_type, KeyType | |
63 | >, | |
64 | // } | |
65 | // else | |
66 | // { | |
67 | KeyToBaseConverter | |
68 | // } | |
69 | ||
70 | >::type | |
71 | ||
72 | >::type | |
73 | ||
74 | > type; | |
75 | }; | |
76 | ||
77 | #endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
78 | ||
79 | ||
80 | /// \brief Container adaptor to build a type that is compliant to the concept of an associative container. | |
81 | ||
82 | template | |
83 | < | |
84 | class Base, | |
85 | ||
86 | class Iterator, | |
87 | class ConstIterator, | |
88 | ||
89 | class KeyType, | |
90 | ||
91 | class IteratorToBaseConverter = ::boost::mpl::na, | |
92 | class IteratorFromBaseConverter = ::boost::mpl::na, | |
93 | class ValueToBaseConverter = ::boost::mpl::na, | |
94 | class ValueFromBaseConverter = ::boost::mpl::na, | |
95 | class KeyToBaseConverter = ::boost::mpl::na, | |
96 | ||
97 | class FunctorsFromDerivedClasses = mpl::vector<> | |
98 | > | |
99 | class associative_container_adaptor : | |
100 | ||
101 | public associative_container_adaptor_base | |
102 | < | |
103 | Base, Iterator, ConstIterator, KeyType, | |
104 | IteratorToBaseConverter, IteratorFromBaseConverter, | |
105 | ValueToBaseConverter, ValueFromBaseConverter, KeyToBaseConverter, | |
106 | FunctorsFromDerivedClasses | |
107 | ||
108 | >::type | |
109 | { | |
110 | ||
111 | // MetaData ------------------------------------------------------------- | |
112 | ||
113 | typedef typename associative_container_adaptor_base | |
114 | < | |
115 | Base, Iterator, ConstIterator, KeyType, | |
116 | IteratorToBaseConverter, IteratorFromBaseConverter, | |
117 | ValueToBaseConverter, ValueFromBaseConverter, KeyToBaseConverter, | |
118 | FunctorsFromDerivedClasses | |
119 | ||
120 | >::type base_; | |
121 | ||
122 | public: | |
123 | ||
124 | typedef KeyType key_type; | |
125 | ||
126 | protected: | |
127 | ||
128 | typedef BOOST_DEDUCED_TYPENAME mpl::if_< ::boost::mpl::is_na<KeyToBaseConverter>, | |
129 | // { | |
130 | detail::key_to_base_identity | |
131 | < | |
132 | BOOST_DEDUCED_TYPENAME Base::key_type, KeyType | |
133 | >, | |
134 | // } | |
135 | // else | |
136 | // { | |
137 | KeyToBaseConverter | |
138 | // } | |
139 | ||
140 | >::type key_to_base; | |
141 | ||
142 | public: | |
143 | ||
144 | explicit associative_container_adaptor(Base & c) | |
145 | : base_(c) {} | |
146 | ||
147 | protected: | |
148 | ||
149 | ||
150 | typedef associative_container_adaptor associative_container_adaptor_; | |
151 | ||
152 | // Interface -------------------------------------------------------------- | |
153 | ||
154 | public: | |
155 | ||
156 | template< class CompatibleKey > | |
157 | BOOST_DEDUCED_TYPENAME base_::size_type erase(const CompatibleKey & k) | |
158 | { | |
159 | return this->base().erase | |
160 | ( | |
161 | this->template functor<key_to_base>()(k) | |
162 | ); | |
163 | } | |
164 | ||
165 | // As we redefine erase, the other overloads need to be manually routed | |
166 | ||
167 | BOOST_DEDUCED_TYPENAME base_::iterator erase( | |
168 | BOOST_DEDUCED_TYPENAME base_::iterator pos) | |
169 | { | |
170 | return base_::container_adaptor_::erase(pos); | |
171 | } | |
172 | ||
173 | BOOST_DEDUCED_TYPENAME base_::iterator erase( | |
174 | BOOST_DEDUCED_TYPENAME base_::iterator first, | |
175 | BOOST_DEDUCED_TYPENAME base_::iterator last) | |
176 | { | |
177 | return base_::container_adaptor_::erase(first,last); | |
178 | } | |
179 | ||
180 | template< class CompatibleKey > | |
181 | BOOST_DEDUCED_TYPENAME base_::size_type count(const CompatibleKey & k) const | |
182 | { | |
183 | return this->base().count( | |
184 | this->template functor<key_to_base>()(k) | |
185 | ); | |
186 | } | |
187 | ||
188 | template< class CompatibleKey > | |
189 | BOOST_DEDUCED_TYPENAME base_::iterator find(const CompatibleKey & k) | |
190 | { | |
191 | return this->template functor<typename base_::iterator_from_base>() | |
192 | ( | |
193 | this->base().find( | |
194 | this->template functor<key_to_base>()(k) | |
195 | ) | |
196 | ); | |
197 | } | |
198 | ||
199 | template< class CompatibleKey > | |
200 | BOOST_DEDUCED_TYPENAME base_::const_iterator | |
201 | find(const CompatibleKey & k) const | |
202 | { | |
203 | return this->template functor< | |
204 | BOOST_DEDUCED_TYPENAME base_::iterator_from_base>() | |
205 | ( | |
206 | this->base().find( | |
207 | this->template functor<key_to_base>()(k) | |
208 | ) | |
209 | ); | |
210 | } | |
211 | ||
212 | template< class CompatibleKey > | |
213 | std::pair | |
214 | < | |
215 | BOOST_DEDUCED_TYPENAME base_::iterator, | |
216 | BOOST_DEDUCED_TYPENAME base_::iterator | |
217 | > | |
218 | equal_range(const CompatibleKey & k) | |
219 | { | |
220 | std::pair< | |
221 | ||
222 | BOOST_DEDUCED_TYPENAME Base::iterator, | |
223 | BOOST_DEDUCED_TYPENAME Base::iterator | |
224 | ||
225 | > r( this->base().equal_range( | |
226 | this->template functor<key_to_base>()(k) | |
227 | ) | |
228 | ); | |
229 | ||
230 | return std::pair | |
231 | < | |
232 | BOOST_DEDUCED_TYPENAME base_::iterator, | |
233 | BOOST_DEDUCED_TYPENAME base_::iterator | |
234 | >( | |
235 | this->template functor< | |
236 | BOOST_DEDUCED_TYPENAME base_::iterator_from_base | |
237 | >() ( r.first ), | |
238 | this->template functor< | |
239 | BOOST_DEDUCED_TYPENAME base_::iterator_from_base | |
240 | >() ( r.second ) | |
241 | ); | |
242 | } | |
243 | ||
244 | template< class CompatibleKey > | |
245 | std::pair | |
246 | < | |
247 | BOOST_DEDUCED_TYPENAME base_::const_iterator, | |
248 | BOOST_DEDUCED_TYPENAME base_::const_iterator | |
249 | > | |
250 | equal_range(const CompatibleKey & k) const | |
251 | { | |
252 | std::pair< | |
253 | ||
254 | BOOST_DEDUCED_TYPENAME Base::const_iterator, | |
255 | BOOST_DEDUCED_TYPENAME Base::const_iterator | |
256 | ||
257 | > r( this->base().equal_range( | |
258 | this->template functor<key_to_base>()(k) | |
259 | ) | |
260 | ); | |
261 | ||
262 | return std::pair | |
263 | < | |
264 | BOOST_DEDUCED_TYPENAME base_::const_iterator, | |
265 | BOOST_DEDUCED_TYPENAME base_::const_iterator | |
266 | >( | |
267 | this->template functor< | |
268 | BOOST_DEDUCED_TYPENAME base_::iterator_from_base | |
269 | >() ( r.first ), | |
270 | this->template functor< | |
271 | BOOST_DEDUCED_TYPENAME base_::iterator_from_base | |
272 | >() ( r.second ) | |
273 | ); | |
274 | } | |
275 | ||
276 | }; | |
277 | ||
278 | ||
279 | } // namespace container_adaptor | |
280 | } // namespace bimaps | |
281 | } // namespace boost | |
282 | ||
283 | ||
284 | #endif // BOOST_BIMAP_CONTAINER_ADAPTOR_ASSOCIATIVE_CONTAINER_ADAPTOR_HPP | |
285 | ||
286 | ||
287 |