1typedef union
2{
3  long align;
4  struct
5    {
6      short h, l;
7    } b;
8} T;
9
10f (x)
11     int x;
12{
13  int num = 0;
14  T reg;
15
16  reg.b.l = x;
17  while ((reg.b.l & 1) == 0)
18    {
19      num++;
20      reg.b.l >>= 1;
21    }
22  return num;
23}
24
25main ()
26{
27  if (f (2) != 1)
28    abort ();
29  exit (0);
30}
31
32