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Diffstat (limited to 'boost/compute/type_traits/result_of.hpp')
| -rw-r--r-- | boost/compute/type_traits/result_of.hpp | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/boost/compute/type_traits/result_of.hpp b/boost/compute/type_traits/result_of.hpp new file mode 100644 index 0000000000..3f475a35da --- /dev/null +++ b/boost/compute/type_traits/result_of.hpp @@ -0,0 +1,39 @@ +//---------------------------------------------------------------------------// +// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com> +// +// 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://boostorg.github.com/compute for more information. +//---------------------------------------------------------------------------// + +#ifndef BOOST_COMPUTE_TYPE_TRAITS_RESULT_OF_HPP +#define BOOST_COMPUTE_TYPE_TRAITS_RESULT_OF_HPP + +#include <boost/utility/result_of.hpp> + +namespace boost { +namespace compute { + +/// Returns the result of \c Function when called with \c Args. +/// +/// For example, +/// \code +/// // int + int = int +/// result_of<plus(int, int)>::type == int +/// \endcode +template<class Signature> +struct result_of +{ + // the default implementation uses the TR1-style result_of protocol. note + // that we explicitly do *not* use the C++11 decltype operator as we want + // the result type as it would be on an OpenCL device, not the actual C++ + // type resulting from "invoking" the function on the host. + typedef typename ::boost::tr1_result_of<Signature>::type type; +}; + +} // end compute namespace +} // end boost namespace + +#endif // BOOST_COMPUTE_TYPE_TRAITS_RESULT_OF_HPP |