/usr/include/boost/compute/utility
Edit: /usr/include/boost/compute/utility/invoke.hpp (2786B)
//---------------------------------------------------------------------------//
// Copyright (c) 2013-2015 Kyle Lutz
//
// 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://kylelutz.github.com/compute for more information.
//---------------------------------------------------------------------------//
#ifndef BOOST_COMPUTE_UTILITY_INVOKE_HPP
#define BOOST_COMPUTE_UTILITY_INVOKE_HPP
#include
#include
#include
#include
#include
#include
#include
namespace boost {
namespace compute {
#define BOOST_COMPUTE_DETAIL_INVOKE_ARG(z, n, unused) \
BOOST_PP_COMMA_IF(n) k.var("arg" BOOST_PP_STRINGIZE(n))
#define BOOST_COMPUTE_DETAIL_INVOKE_ADD_ARG(z, n, unused) \
k.add_set_arg("arg" BOOST_PP_STRINGIZE(n), BOOST_PP_CAT(arg, n));
#define BOOST_COMPUTE_DETAIL_DEFINE_INVOKE(z, n, unused) \
template \
inline typename result_of::type \
invoke(const Function& function, command_queue& queue, BOOST_PP_ENUM_BINARY_PARAMS(n, const T, &arg)) \
{ \
typedef typename result_of::type result_type; \
detail::meta_kernel k("invoke"); \
detail::scalar result(queue.get_context()); \
const size_t result_arg = k.add_arg(memory_object::global_memory, "result"); \
BOOST_PP_REPEAT(n, BOOST_COMPUTE_DETAIL_INVOKE_ADD_ARG, ~) \
k << "*result = " << function( \
BOOST_PP_REPEAT(n, BOOST_COMPUTE_DETAIL_INVOKE_ARG, ~) \
) << ";"; \
k.set_arg(result_arg, result.get_buffer()); \
k.exec(queue); \
return result.read(queue); \
}
BOOST_PP_REPEAT_FROM_TO(1, BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_DETAIL_DEFINE_INVOKE, ~)
#undef BOOST_COMPUTE_DETAIL_INVOKE_ARG
#undef BOOST_COMPUTE_DETAIL_INVOKE_ADD_ARG
#undef BOOST_COMPUTE_DETAIL_DEFINE_INVOKE
#ifdef BOOST_COMPUTE_DOXYGEN_INVOKED
/// Invokes \p function with \p args on \p queue.
///
/// For example, to invoke the builtin abs() function:
/// \code
/// int result = invoke(abs(), queue, -10); // returns 10
/// \endcode
template
inline typename result_of::type
invoke(const Function& function, command_queue& queue, const Args&... args);
#endif // BOOST_COMPUTE_DOXYGEN_INVOKED
} // end compute namespace
} // end boost namespace
#endif // BOOST_COMPUTE_UTILITY_INVOKE_HPP