1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
|
// Boost.Range library
//
// Copyright Neil Groves 2010. Use, modification and
// distribution is subject to the Boost Software License, Version
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see http://www.boost.org/libs/range/
//
#ifndef BOOST_RANGE_DETAIL_ANY_ITERATOR_INTERFACE_HPP_INCLUDED
#define BOOST_RANGE_DETAIL_ANY_ITERATOR_INTERFACE_HPP_INCLUDED
#include <boost/range/detail/any_iterator_buffer.hpp>
#include <boost/iterator/iterator_categories.hpp>
#include <boost/type_traits/add_const.hpp>
#include <boost/type_traits/add_reference.hpp>
#include <boost/type_traits/is_reference.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/type_traits/remove_reference.hpp>
namespace boost
{
namespace range_detail
{
template<class T>
struct const_reference_type_generator
{
typedef typename mpl::if_<
typename is_reference<T>::type,
typename add_const<
typename remove_reference<T>::type
>::type&,
T
>::type type;
};
template<class T>
struct mutable_reference_type_generator
{
typedef typename mpl::if_<
typename mpl::and_<
typename is_const<T>::type,
typename mpl::not_<typename is_reference<T>::type>::type
>::type,
T,
typename add_reference<T>::type
>::type type;
};
template<
class Reference
, class Buffer
>
struct any_incrementable_iterator_interface
{
typedef typename mutable_reference_type_generator<
Reference
>::type reference;
typedef typename const_reference_type_generator<
Reference
>::type const_reference;
typedef typename remove_const<
typename remove_reference<Reference>::type
>::type reference_as_value_type;
typedef Buffer buffer_type;
virtual ~any_incrementable_iterator_interface() {}
virtual any_incrementable_iterator_interface*
clone(buffer_type& buffer) const = 0;
virtual any_incrementable_iterator_interface<const_reference, Buffer>*
clone_const_ref(buffer_type& buffer) const = 0;
virtual any_incrementable_iterator_interface<reference_as_value_type, Buffer>*
clone_reference_as_value(buffer_type& buffer) const = 0;
virtual void increment() = 0;
};
template<
class Reference
, class Buffer
>
struct any_single_pass_iterator_interface
: any_incrementable_iterator_interface<Reference, Buffer>
{
typedef typename any_incrementable_iterator_interface<Reference, Buffer>::reference reference;
typedef typename any_incrementable_iterator_interface<Reference, Buffer>::const_reference const_reference;
typedef typename any_incrementable_iterator_interface<Reference, Buffer>::buffer_type buffer_type;
typedef typename any_incrementable_iterator_interface<Reference, Buffer>::reference_as_value_type reference_as_value_type;
virtual any_single_pass_iterator_interface*
clone(buffer_type& buffer) const = 0;
virtual any_single_pass_iterator_interface<const_reference, Buffer>*
clone_const_ref(buffer_type& buffer) const = 0;
virtual any_single_pass_iterator_interface<reference_as_value_type, Buffer>*
clone_reference_as_value(buffer_type& buffer) const = 0;
virtual reference dereference() const = 0;
virtual bool equal(const any_single_pass_iterator_interface& other) const = 0;
};
template<
class Reference
, class Buffer
>
struct any_forward_iterator_interface
: any_single_pass_iterator_interface<Reference, Buffer>
{
typedef typename any_single_pass_iterator_interface<Reference, Buffer>::reference reference;
typedef typename any_single_pass_iterator_interface<Reference, Buffer>::const_reference const_reference;
typedef typename any_single_pass_iterator_interface<Reference, Buffer>::buffer_type buffer_type;
typedef typename any_single_pass_iterator_interface<Reference, Buffer>::reference_as_value_type reference_as_value_type;
virtual any_forward_iterator_interface*
clone(buffer_type& buffer) const = 0;
virtual any_forward_iterator_interface<const_reference, Buffer>*
clone_const_ref(buffer_type& buffer) const = 0;
virtual any_forward_iterator_interface<reference_as_value_type, Buffer>*
clone_reference_as_value(buffer_type& buffer) const = 0;
};
template<
class Reference
, class Buffer
>
struct any_bidirectional_iterator_interface
: any_forward_iterator_interface<Reference, Buffer>
{
typedef typename any_forward_iterator_interface<Reference, Buffer>::reference reference;
typedef typename any_forward_iterator_interface<Reference, Buffer>::const_reference const_reference;
typedef typename any_forward_iterator_interface<Reference, Buffer>::buffer_type buffer_type;
typedef typename any_forward_iterator_interface<Reference, Buffer>::reference_as_value_type reference_as_value_type;
virtual any_bidirectional_iterator_interface*
clone(buffer_type& buffer) const = 0;
virtual any_bidirectional_iterator_interface<const_reference, Buffer>*
clone_const_ref(buffer_type& buffer) const = 0;
virtual any_bidirectional_iterator_interface<reference_as_value_type, Buffer>*
clone_reference_as_value(buffer_type& buffer) const = 0;
virtual void decrement() = 0;
};
template<
class Reference
, class Difference
, class Buffer
>
struct any_random_access_iterator_interface
: any_bidirectional_iterator_interface<
Reference
, Buffer
>
{
typedef typename any_bidirectional_iterator_interface<Reference, Buffer>::reference reference;
typedef typename any_bidirectional_iterator_interface<Reference, Buffer>::const_reference const_reference;
typedef typename any_bidirectional_iterator_interface<Reference, Buffer>::buffer_type buffer_type;
typedef typename any_bidirectional_iterator_interface<Reference, Buffer>::reference_as_value_type reference_as_value_type;
typedef Difference difference_type;
virtual any_random_access_iterator_interface*
clone(buffer_type& buffer) const = 0;
virtual any_random_access_iterator_interface<const_reference, Difference, Buffer>*
clone_const_ref(buffer_type& buffer) const = 0;
virtual any_random_access_iterator_interface<reference_as_value_type, Difference, Buffer>*
clone_reference_as_value(buffer_type& buffer) const = 0;
virtual void advance(Difference offset) = 0;
virtual Difference distance_to(const any_random_access_iterator_interface& other) const = 0;
};
template<
class Traversal
, class Reference
, class Difference
, class Buffer
>
struct any_iterator_interface_type_generator;
template<
class Reference
, class Difference
, class Buffer
>
struct any_iterator_interface_type_generator<
incrementable_traversal_tag
, Reference
, Difference
, Buffer
>
{
typedef any_incrementable_iterator_interface<Reference, Buffer> type;
};
template<
class Reference
, class Difference
, class Buffer
>
struct any_iterator_interface_type_generator<
single_pass_traversal_tag
, Reference
, Difference
, Buffer
>
{
typedef any_single_pass_iterator_interface<Reference, Buffer> type;
};
template<
class Reference
, class Difference
, class Buffer
>
struct any_iterator_interface_type_generator<
forward_traversal_tag
, Reference
, Difference
, Buffer
>
{
typedef any_forward_iterator_interface<Reference, Buffer> type;
};
template<
class Reference
, class Difference
, class Buffer
>
struct any_iterator_interface_type_generator<
bidirectional_traversal_tag
, Reference
, Difference
, Buffer
>
{
typedef any_bidirectional_iterator_interface<Reference, Buffer> type;
};
template<
class Reference
, class Difference
, class Buffer
>
struct any_iterator_interface_type_generator<
random_access_traversal_tag
, Reference
, Difference
, Buffer
>
{
typedef any_random_access_iterator_interface<
Reference
, Difference
, Buffer
> type;
};
} // namespace range_detail
} // namespace boost
#endif // include guard
|
