//---------------------------------------------------------------------------//
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// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#ifndef BOOST_COMPUTE_TYPE_TRAITS_RESULT_OF_HPP
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#define BOOST_COMPUTE_TYPE_TRAITS_RESULT_OF_HPP
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#include <boost/utility/result_of.hpp>
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namespace boost {
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namespace compute {
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/// Returns the result of \c Function when called with \c Args.
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///
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/// For example,
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/// \code
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/// // int + int = int
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/// result_of<plus(int, int)>::type == int
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/// \endcode
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template<class Signature>
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struct result_of
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{
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// the default implementation uses the TR1-style result_of protocol. note
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// that we explicitly do *not* use the C++11 decltype operator as we want
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// the result type as it would be on an OpenCL device, not the actual C++
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// type resulting from "invoking" the function on the host.
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typedef typename ::boost::tr1_result_of<Signature>::type type;
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};
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} // end compute namespace
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} // end boost namespace
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#endif // BOOST_COMPUTE_TYPE_TRAITS_RESULT_OF_HPP
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