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2b778ceb | 1 | /* Copyright (C) 1992-2021 Free Software Foundation, Inc. |
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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 | |
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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. | |
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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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
54d79e99 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
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17 | |
18 | #ifndef _ALLOCA_H | |
19 | #define _ALLOCA_H 1 | |
5107cf1d | 20 | |
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21 | #include <features.h> |
22 | ||
23 | #define __need_size_t | |
24 | #include <stddef.h> | |
25 | ||
26 | __BEGIN_DECLS | |
27 | ||
2ea6af74 | 28 | /* Remove any previous definition. */ |
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29 | #undef alloca |
30 | ||
31 | /* Allocate a block that will be freed when the calling function exits. */ | |
c1422e5b | 32 | extern void *alloca (size_t __size) __THROW; |
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33 | |
34 | #ifdef __GNUC__ | |
bdbf022d | 35 | # define alloca(size) __builtin_alloca (size) |
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36 | #endif /* GCC. */ |
37 | ||
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38 | __END_DECLS |
39 | ||
40 | #endif /* alloca.h */ |