GDB (xrefs)
preprocessor.h
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1 /* Copyright (C) 2017-2018 Free Software Foundation, Inc.
2 
3  This file is part of GDB.
4 
5  This program is free software; you can redistribute it and/or modify
6  it under the terms of the GNU General Public License as published by
7  the Free Software Foundation; either version 3 of the License, or
8  (at your option) any later version.
9 
10  This program is distributed in the hope that it will be useful,
11  but 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 #ifndef COMMON_PREPROC_H
19 #define COMMON_PREPROC_H
20 
21 /* Generally useful preprocessor bits. */
22 
23 /* Concatenate two tokens. */
24 #define CONCAT_1(a, b) a ## b
25 #define CONCAT(a, b) CONCAT_1 (a, b)
26 
27 /* Stringification. */
28 #define STRINGIFY_1(x) #x
29 #define STRINGIFY(x) STRINGIFY_1 (x)
30 
31 /* Escape parens out. Useful if you need to pass an argument that
32  includes commas to another macro. */
33 #define ESC(...) __VA_ARGS__
34 
35 #endif /* COMMON_PREPROC */