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1 | // Copyright David Abrahams 2003. | |
2 | // Distributed under the Boost Software License, Version 1.0. (See | |
3 | // accompanying file LICENSE_1_0.txt or copy at | |
4 | // http://www.boost.org/LICENSE_1_0.txt) | |
5 | #ifndef ITERATOR_TRAITS_DWA200347_HPP | |
6 | # define ITERATOR_TRAITS_DWA200347_HPP | |
7 | ||
8 | # include <boost/detail/iterator.hpp> | |
9 | # include <boost/detail/workaround.hpp> | |
10 | ||
11 | namespace boost { | |
12 | namespace iterators { | |
13 | ||
14 | // Macro for supporting old compilers, no longer needed but kept | |
15 | // for backwards compatibility (it was documented). | |
16 | #define BOOST_ITERATOR_CATEGORY iterator_category | |
17 | ||
18 | ||
19 | template <class Iterator> | |
20 | struct iterator_value | |
21 | { | |
22 | typedef typename boost::detail::iterator_traits<Iterator>::value_type type; | |
23 | }; | |
24 | ||
25 | template <class Iterator> | |
26 | struct iterator_reference | |
27 | { | |
28 | typedef typename boost::detail::iterator_traits<Iterator>::reference type; | |
29 | }; | |
30 | ||
31 | ||
32 | template <class Iterator> | |
33 | struct iterator_pointer | |
34 | { | |
35 | typedef typename boost::detail::iterator_traits<Iterator>::pointer type; | |
36 | }; | |
37 | ||
38 | template <class Iterator> | |
39 | struct iterator_difference | |
40 | { | |
41 | typedef typename boost::detail::iterator_traits<Iterator>::difference_type type; | |
42 | }; | |
43 | ||
44 | template <class Iterator> | |
45 | struct iterator_category | |
46 | { | |
47 | typedef typename boost::detail::iterator_traits<Iterator>::iterator_category type; | |
48 | }; | |
49 | ||
50 | } // namespace iterators | |
51 | ||
52 | using iterators::iterator_value; | |
53 | using iterators::iterator_reference; | |
54 | using iterators::iterator_pointer; | |
55 | using iterators::iterator_difference; | |
56 | using iterators::iterator_category; | |
57 | ||
58 | } // namespace boost | |
59 | ||
60 | #endif // ITERATOR_TRAITS_DWA200347_HPP |