]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | #ifndef INDIRECT_REFERENCE_DWA200415_HPP |
2 | # define INDIRECT_REFERENCE_DWA200415_HPP | |
3 | ||
4 | // | |
5 | // Copyright David Abrahams 2004. Use, modification and distribution is | |
6 | // subject to the Boost Software License, Version 1.0. (See accompanying | |
7 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
8 | // | |
9 | // typename indirect_reference<P>::type provides the type of *p. | |
10 | // | |
11 | // http://www.boost.org/libs/iterator/doc/pointee.html | |
12 | // | |
13 | ||
14 | # include <boost/detail/is_incrementable.hpp> | |
15 | # include <boost/iterator/iterator_traits.hpp> | |
16 | # include <boost/type_traits/remove_cv.hpp> | |
17 | # include <boost/mpl/eval_if.hpp> | |
18 | # include <boost/pointee.hpp> | |
19 | ||
20 | namespace boost { | |
21 | ||
22 | namespace detail | |
23 | { | |
24 | template <class P> | |
25 | struct smart_ptr_reference | |
26 | { | |
27 | typedef typename boost::pointee<P>::type& type; | |
28 | }; | |
29 | } | |
30 | ||
31 | template <class P> | |
32 | struct indirect_reference | |
33 | : mpl::eval_if< | |
34 | detail::is_incrementable<P> | |
35 | , iterator_reference<P> | |
36 | , detail::smart_ptr_reference<P> | |
37 | > | |
38 | { | |
39 | }; | |
40 | ||
41 | } // namespace boost | |
42 | ||
43 | #endif // INDIRECT_REFERENCE_DWA200415_HPP |