don't set wwindex[] until very end.

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

#ifndef lint
static  char *sccsid = "@(#)wwalloc.c   3.3 83/08/19";
#endif

#include "ww.h"

char **
wwalloc(nrow, ncol, size)
int 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)
               return 0;
       p = (char *)&pp[nrow];
       size /= sizeof (char);          /* paranoid */
       size *= ncol;
       for (i = 0; i < nrow; i++) {
               pp[i] = p;
               p += size;
       }
       return pp;
}

wwfree(p)
register char **p;
{
       free((char *)p);
}