tuple_element.h
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1/*
2 * This file is part of ArmarX.
3 *
4 * Copyright (C) 2011-2016, High Performance Humanoid Technologies (H2T), Karlsruhe Institute of Technology (KIT), all rights reserved.
5 *
6 * ArmarX is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * ArmarX is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 *
18 * @package ArmarXCore
19 * @author Raphael Grimm ( raphael dot grimm at kit dot edu)
20 * @date 2016
21 * @copyright http://www.gnu.org/licenses/gpl-2.0.txt
22 * GNU General Public License
23 */
24#pragma once
25
26/**
27 * @brief Expands the given parameters and returns the first
28 * \ingroup CPreprocessor
29 */
30#define ARMARX_FIRST_PARAMETER(...) ARMARX_FIRST_PARAMETER_IMPL(__VA_ARGS__, )
31#define ARMARX_FIRST_PARAMETER_IMPL(x1, ...) x1
32
33/**
34 * @brief Expands the given parameters and returns the second
35 * \ingroup CPreprocessor
36 */
37#define ARMARX_SECOND_PARAMETER(...) ARMARX_SECOND_PARAMETER_IMPL(__VA_ARGS__, )
38#define ARMARX_SECOND_PARAMETER_IMPL(x1, x2, ...) x2
39
40/**
41 * @brief Expands the given parameters and returns the third
42 * \ingroup CPreprocessor
43 */
44#define ARMARX_THIRD_PARAMETER(...) ARMARX_THIRD_PARAMETER_IMPL(__VA_ARGS__, , )
45#define ARMARX_THIRD_PARAMETER_IMPL(x1, x2, x3, ...) x3