#ifndef POINTEE_DWA200415_HPP

 # define POINTEE_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 pointee<P>::type provides the pointee type of P.

 //

 // For example, it is T for T* and X for shared_ptr<X>.

 //

 // 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/add_const.hpp>

 # include <boost/type_traits/remove_cv.hpp>

 # include <boost/mpl/if.hpp>

 # include <boost/mpl/eval_if.hpp>

 namespace boost { 

 namespace detail

 {

   template <class P>

   struct smart_ptr_pointee

   {

       typedef typename P::element_type type;

   };

   template <class Iterator>

   struct iterator_pointee

   {

       typedef typename iterator_traits<Iterator>::value_type value_type;

       struct impl

       {

           template <class T>

           static char test(T const&);

           static char (& test(value_type&) )[2];

           static Iterator& x;

       };

       BOOST_STATIC_CONSTANT(bool, is_constant = sizeof(impl::test(*impl::x)) == 1);

       typedef typename mpl::if_c<

 #  if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))

           ::boost::detail::iterator_pointee<Iterator>::is_constant

 #  else

           is_constant

 #  endif 

         , typename add_const<value_type>::type

         , value_type

       >::type type;

   };

 }

 template <class P>

 struct pointee

   : mpl::eval_if<

         detail::is_incrementable<P>

       , detail::iterator_pointee<P>

       , detail::smart_ptr_pointee<P>

     >

 {

 };

 } // namespace boost

 #endif // POINTEE_DWA200415_HPP