1unsigned int
2f1 (int diff)
3{
4  return ((unsigned int) (diff < 0 ? -diff : diff));
5}
6
7unsigned int
8f2 (unsigned int diff)
9{
10  return ((unsigned int) ((signed int) diff < 0 ? -diff : diff));
11}
12
13unsigned long long
14f3 (long long diff)
15{
16  return ((unsigned long long) (diff < 0 ? -diff : diff));
17}
18
19unsigned long long
20f4 (unsigned long long diff)
21{
22  return ((unsigned long long) ((signed long long) diff < 0 ? -diff : diff));
23}
24
25main ()
26{
27  int i;
28  for (i = 0; i <= 10; i++)
29    {
30      if (f1 (i) != i)
31	abort ();
32      if (f1 (-i) != i)
33	abort ();
34      if (f2 (i) != i)
35	abort ();
36      if (f2 (-i) != i)
37	abort ();
38      if (f3 ((long long) i) != i)
39	abort ();
40      if (f3 ((long long) -i) != i)
41	abort ();
42      if (f4 ((long long) i) != i)
43	abort ();
44      if (f4 ((long long) -i) != i)
45	abort ();
46    }
47  exit (0);
48}
49