fix contrib notice (Edward Wang)

[unix-history] / usr / src / usr.bin / window / wwalloc.c

/*
* Copyright (c) 1983 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.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)wwalloc.c   3.11 (Berkeley) %G%";
#endif /* not lint */

#include "ww.h"

char **
wwalloc(row, col, nrow, ncol, size)
{
       register char *p, **pp;
       register int i;

       /* fast, call malloc only once */
       pp = (char **)
               malloc((unsigned) 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)
register char **p;
{
       free((char *)(p + row));
}