+
−/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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					    \
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−   ? (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 */