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