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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 |