// (C) Copyright Jonathan Turkanis 2003.

 // Distributed under 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.)

 // See http://www.boost.org/libs/iostreams for documentation.

 #ifndef BOOST_IOSTREAMS_DETAIL_DISPATCH_HPP_INCLUDED

 #define BOOST_IOSTREAMS_DETAIL_DISPATCH_HPP_INCLUDED

 #if defined(_MSC_VER) && (_MSC_VER >= 1020)

 # pragma once

 #endif              

 #include <boost/config.hpp>                   // BOOST_DEDUCED_TYPENAME. 

 #include <boost/iostreams/detail/select.hpp>

 #include <boost/iostreams/traits.hpp>         // category_of. 

 #include <boost/mpl/void.hpp>          

 #include <boost/type_traits/is_convertible.hpp>         

 namespace boost { namespace iostreams {namespace detail {

 template< typename T, typename Tag1, typename Tag2,

           typename Tag3 = mpl::void_, typename Tag4 = mpl::void_,

           typename Tag5 = mpl::void_, typename Tag6 = mpl::void_,

           typename Category = 

               BOOST_DEDUCED_TYPENAME category_of<T>::type >

 struct dispatch 

     : iostreams::select<  // Disambiguation for Tru64.

           is_convertible<Category, Tag1>, Tag1,

           is_convertible<Category, Tag2>, Tag2,

           is_convertible<Category, Tag3>, Tag3,

           is_convertible<Category, Tag4>, Tag4,

           is_convertible<Category, Tag5>, Tag5,

           is_convertible<Category, Tag6>, Tag6

       >

     { };

 } } } // End namespaces detail, iostreams, boost.

 #endif // #ifndef BOOST_IOSTREAMS_DETAIL_DISPATCH_HPP_INCLUDED