static int intFromByteList_littleEndian_partial(L<Byte> l, int i) {
  int n = l(l);
  ret (ubyteToInt(i+3 >= n ? 0 : l.get(i+3)) << 24
    | (ubyteToInt(i+2 >= n ? 0 : l.get(i+2)) << 16
    | (ubyteToInt(i+1 >= n ? 0 : l.get(i+1)) << 8
    | ubyteToInt(l.get(i)));
}