void *
emallocForTable(ulong sz, unsigned int rows, unsigned int columns)
{
  void *v;
  ulong ulongType;

  v = mallocz(sz, 1);
  if (v == nil) {
    sysfatal
        ("Size of ulong: %d bytes\nMaximum value of a ulong: %lu,d\nmalloc of %lu,d bytes fails when assigning %u,d rows and %u,d columns: %r",
         sizeof(ulongType),
         (unsigned long) pow(2, (8 * sizeof(ulongType))) - 1,
         sz, rows, columns);
  }
/*   use mallocz instead of memset after malloc */
/*   memset(v, 0, sz); */
  return v;
}