[babeltrace.git] / src / cpp-common / bt2c / call.hpp

/*
 * Copyright (c) 2023 Philippe Proulx <pproulx@efficios.com>
 *
 * SPDX-License-Identifier: MIT
 */

#ifndef BABELTRACE_CPP_COMMON_BT2C_CALL_HPP
#define BABELTRACE_CPP_COMMON_BT2C_CALL_HPP

#include <functional>
#include <utility>

namespace bt2c {

/*
 * Partial implementation of INVOKE.
 *
 * As found in
 * <https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0312r1.html>.
 */
template <typename FuncT, typename... ArgTs>
auto call(FuncT func, ArgTs&&...args) -> decltype(std::ref(func)(std::forward<ArgTs>(args)...))
{
    return std::ref(func)(std::forward<ArgTs>(args)...);
}

} /* namespace bt2c */

#endif /* BABELTRACE_CPP_COMMON_BT2C_CALL_HPP */
Commit	Line	Data
557acf4c PP	1	/*
	2	* Copyright (c) 2023 Philippe Proulx <pproulx@efficios.com>
	3	*
	4	* SPDX-License-Identifier: MIT
	5	*/
	6
	7	#ifndef BABELTRACE_CPP_COMMON_BT2C_CALL_HPP
	8	#define BABELTRACE_CPP_COMMON_BT2C_CALL_HPP
	9
	10	#include <functional>
	11	#include <utility>
	12
	13	namespace bt2c {
	14
	15	/*
	16	* Partial implementation of INVOKE.
	17	*
	18	* As found in
	19	* <https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0312r1.html>.
	20	*/
	21	template <typename FuncT, typename... ArgTs>
	22	auto call(FuncT func, ArgTs&&...args) -> decltype(std::ref(func)(std::forward<ArgTs>(args)...))
	23	{
	24	return std::ref(func)(std::forward<ArgTs>(args)...);
	25	}
	26
	27	} /* namespace bt2c */
	28
	29	#endif /* BABELTRACE_CPP_COMMON_BT2C_CALL_HPP */