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/* $OpenBSD: wwalloc.c,v 1.6 2003/06/03 02:56:23 millert Exp $ */
/* $NetBSD: wwalloc.c,v 1.3 1995/09/28 10:35:10 tls Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Edward Wang at The University of California, Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)wwalloc.c 8.1 (Berkeley) 6/6/93";
#else
static char rcsid[] = "$OpenBSD: wwalloc.c,v 1.6 2003/06/03 02:56:23 millert Exp $";
#endif
#endif /* not lint */
#include <stdlib.h>
#include "ww.h"
char **
wwalloc(row, col, nrow, ncol, size)
int row, col, nrow, ncol;
size_t size;
{
char *p, **pp;
int i;
/* fast, call malloc only once */
pp = (char **)
malloc(sizeof (char **) * nrow + size * nrow * ncol);
if (pp == 0) {
wwerrno = WWE_NOMEM;
return 0;
}
p = (char *)&pp[nrow];
col *= size;
size /= sizeof (char); /* paranoid */
size *= ncol;
for (i = 0; i < nrow; i++) {
pp[i] = p - col;
p += size;
}
return pp - row;
}
wwfree(p, row)
char **p;
{
free((char *)(p + row));
}
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