52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
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//---------------------------------------------------------------------------//
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// Copyright (c) 2013 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_FUNCTIONAL_AS_HPP
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#define BOOST_COMPUTE_FUNCTIONAL_AS_HPP
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namespace boost {
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namespace compute {
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namespace detail {
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template<class T, class Arg>
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struct invoked_as
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{
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invoked_as(const Arg &arg)
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: m_arg(arg)
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{
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}
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Arg m_arg;
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};
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} // end detail namespace
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/// The \ref as function converts its argument to type \c T (similar to
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/// reinterpret_cast<T>).
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///
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/// \see \ref convert "convert<T>"
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template<class T>
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struct as
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{
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typedef T result_type;
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/// \internal_
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template<class Arg>
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detail::invoked_as<T, Arg> operator()(const Arg &arg) const
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{
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return detail::invoked_as<T, Arg>(arg);
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}
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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_FUNCTIONAL_AS_HPP
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