1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/* Safe automatic memory allocation with out of memory checking.
Copyright (C) 2003 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2003.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _XALLOCSA_H
#define _XALLOCSA_H
#include "allocsa.h"
/* xallocsa(N) is a checking safe variant of alloca(N). It allocates N bytes
of memory allocated on the stack, that must be freed using freesa() before
the function returns. Upon failure, it exits with an error message. */
#if HAVE_ALLOCA
# define xallocsa(N) \
((N) < 4032 - sa_increment \
? (void *) ((char *) alloca ((N) + sa_increment) + sa_increment) \
: xmallocsa (N))
extern void * xmallocsa (size_t n);
#else
# define xallocsa(N) \
xmalloc (N)
#endif
/* Maybe we should also define a variant
xnallocsa (size_t n, size_t s) - behaves like xallocsa (n * s)
If this would be useful in your application. please speak up. */
#endif /* _XALLOCSA_H */
|
