summaryrefslogtreecommitdiffstats
blob: 5fbb3423199924e77ca50fae960eaee0d05b7515 (plain)
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
#ifndef INDIRECT_REFERENCE_DWA200415_HPP
# define INDIRECT_REFERENCE_DWA200415_HPP

//
// Copyright David Abrahams 2004. 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)
//
// typename indirect_reference<P>::type provides the type of *p.
//
// http://www.boost.org/libs/iterator/doc/pointee.html
//

# include <boost/detail/is_incrementable.hpp>
# include <boost/iterator/iterator_traits.hpp>
# include <boost/type_traits/remove_cv.hpp>
# include <boost/mpl/eval_if.hpp>
# include <boost/pointee.hpp>

namespace boost { 

namespace detail
{
  template <class P>
  struct smart_ptr_reference
  {
      typedef typename boost::pointee<P>::type& type;
  };
}

template <class P>
struct indirect_reference
  : mpl::eval_if<
        detail::is_incrementable<P>
      , iterator_reference<P>
      , detail::smart_ptr_reference<P>
    >
{
};
  
} // namespace boost

#endif // INDIRECT_REFERENCE_DWA200415_HPP