1/* Compatibility wrapper around std::result_of and std::invoke_result.
2
3   Copyright (C) 2022-2023 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 3 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
20#ifndef GDBSUPPORT_INVOKE_RESULT_H
21#define GDBSUPPORT_INVOKE_RESULT_H
22
23#include <type_traits>
24
25namespace gdb
26{
27#if __cplusplus >= 201703L
28template<typename Callable, class... Args>
29using invoke_result = std::invoke_result<Callable, Args...>;
30#else
31template<typename Callable, typename... Args>
32using invoke_result = std::result_of<Callable (Args...)>;
33#endif
34
35} /* namespace gdb */
36
37#endif /* GDBSUPPORT_INVOKE_RESULT_H */
38