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_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED 9 #define BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED 10 11 #include <boost/config.hpp> // BOOST_STATIC_CONSANT. 12 #include <boost/mpl/bool.hpp> 13 #include <boost/type_traits/is_same.hpp> 14 15 namespace boost { namespace iostreams { namespace detail { 16 17 template<typename Device, typename U> 18 struct forward_impl { 19 BOOST_STATIC_CONSTANT(bool, value = 20 ( !is_same< U, Device >::value && 21 !is_same< U, reference_wrapper<Device> >::value )); 22 }; 23 24 template<typename Device, typename U> 25 struct forward 26 : mpl::bool_<forward_impl<Device, U>::value> 27 { }; 28 29 } } } // End namespaces detail, iostreams, boost. 30 31 #endif // #ifndef BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED 32