1 // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com) 2 // (C) Copyright 2003-2007 Jonathan Turkanis 3 // Distributed under the Boost Software License, Version 1.0. (See accompanying 4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) 5 6 // See http://www.boost.org/libs/iostreams for documentation. 7 8 #ifndef BOOST_IOSTREAMS_DETAIL_DISPATCH_HPP_INCLUDED 9 #define BOOST_IOSTREAMS_DETAIL_DISPATCH_HPP_INCLUDED 10 11 #if defined(_MSC_VER) 12 # pragma once 13 #endif 14 15 #include <boost/config.hpp> // BOOST_DEDUCED_TYPENAME. 16 #include <boost/iostreams/detail/select.hpp> 17 #include <boost/iostreams/traits.hpp> // category_of. 18 #include <boost/mpl/void.hpp> 19 #include <boost/type_traits/is_convertible.hpp> 20 21 namespace boost { namespace iostreams {namespace detail { 22 23 template< typename T, typename Tag1, typename Tag2, 24 typename Tag3 = mpl::void_, typename Tag4 = mpl::void_, 25 typename Tag5 = mpl::void_, typename Tag6 = mpl::void_, 26 typename Category = 27 BOOST_DEDUCED_TYPENAME category_of<T>::type > 28 struct dispatch 29 : iostreams::select< // Disambiguation for Tru64. 30 is_convertible<Category, Tag1>, Tag1, 31 is_convertible<Category, Tag2>, Tag2, 32 is_convertible<Category, Tag3>, Tag3, 33 is_convertible<Category, Tag4>, Tag4, 34 is_convertible<Category, Tag5>, Tag5, 35 is_convertible<Category, Tag6>, Tag6 36 > 37 { }; 38 39 } } } // End namespaces detail, iostreams, boost. 40 41 #endif // #ifndef BOOST_IOSTREAMS_DETAIL_DISPATCH_HPP_INCLUDED 42