1 | /* Copyright (C) 1992-2018 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | #ifndef _ALLOCA_H |
19 | #define _ALLOCA_H 1 |
20 | |
21 | #include <features.h> |
22 | |
23 | #define __need_size_t |
24 | #include <stddef.h> |
25 | |
26 | __BEGIN_DECLS |
27 | |
28 | /* Remove any previous definitions. */ |
29 | #undef alloca |
30 | |
31 | /* Allocate a block that will be freed when the calling function exits. */ |
32 | extern void *alloca (size_t __size) __THROW; |
33 | |
34 | #ifdef __GNUC__ |
35 | # define alloca(size) __builtin_alloca (size) |
36 | #endif /* GCC. */ |
37 | |
38 | __END_DECLS |
39 | |
40 | #endif /* alloca.h */ |
41 | |