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55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* Safe automatic memory allocation with out of memory checking.
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Copyright (C) 2003, 2005 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2003.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef _XALLOCSA_H
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#define _XALLOCSA_H
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#include "allocsa.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* xallocsa(N) is a checking safe variant of alloca(N). It allocates N bytes
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of memory allocated on the stack, that must be freed using freesa() before
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the function returns. Upon failure, it exits with an error message. */
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#if HAVE_ALLOCA
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# define xallocsa(N) \
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((N) < 4032 - sa_increment \
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? (void *) ((char *) alloca ((N) + sa_increment) + sa_increment) \
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: xmallocsa (N))
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extern void * xmallocsa (size_t n);
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#else
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# define xallocsa(N) \
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xmalloc (N)
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#endif
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/* Maybe we should also define a variant
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xnallocsa (size_t n, size_t s) - behaves like xallocsa (n * s)
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If this would be useful in your application. please speak up. */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _XALLOCSA_H */
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