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// (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_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED
#define BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED
#include <boost/config.hpp> // BOOST_STATIC_CONSANT.
#include <boost/mpl/bool.hpp>
#include <boost/type_traits/is_same.hpp>
namespace boost { namespace iostreams { namespace detail {
template<typename Device, typename U>
struct forward_impl {
BOOST_STATIC_CONSTANT(bool, value =
( !is_same< U, Device >::value &&
!is_same< U, reference_wrapper<Device> >::value ));
};
template<typename Device, typename U>
struct forward
: mpl::bool_<forward_impl<Device, U>::value>
{ };
} } } // End namespaces detail, iostreams, boost.
#endif // #ifndef BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED