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1 | // (C) Copyright Jonathan Turkanis 2003.
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2 | // Distributed under the Boost Software License, Version 1.0. (See accompanying
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3 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
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4 |
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5 | // See http://www.boost.org/libs/iostreams for documentation.
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6 |
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7 | #ifndef BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED
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8 | #define BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED
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9 |
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10 | #include <boost/config.hpp> // BOOST_STATIC_CONSANT.
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11 | #include <boost/mpl/bool.hpp>
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12 | #include <boost/type_traits/is_same.hpp>
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13 |
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14 | namespace boost { namespace iostreams { namespace detail {
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15 |
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16 | template<typename Device, typename U>
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17 | struct forward_impl {
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18 | BOOST_STATIC_CONSTANT(bool, value =
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19 | ( !is_same< U, Device >::value &&
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20 | !is_same< U, reference_wrapper<Device> >::value ));
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21 | };
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22 |
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23 | template<typename Device, typename U>
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24 | struct forward
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25 | : mpl::bool_<forward_impl<Device, U>::value>
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26 | { };
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27 |
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28 | } } } // End namespaces detail, iostreams, boost.
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29 |
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30 | #endif // #ifndef BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_HPP_INCLUDED
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