last few day's work

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

#ifndef lint
static  char *sccsid = "@(#)wwalloc.c   3.2 83/08/11";
#endif

#include "ww.h"

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

       p = (char **) malloc((unsigned) nrow * sizeof (char *));
       if (p == 0)
               return 0;
       for (i = 0; i < nrow; i++) {
               p[i] = malloc((unsigned) ncol * size);
               if (p[i] == 0) {
                       wwfree(p, i);
                       return 0;
               }
       }
       return p;
}

wwfree(p, nrow)
register char **p;
{
       register int i;

       if (p == 0)
               return;
       for (i = 0; i < nrow; i++)
               free(p[i]);
       free((char *)p);
}