1unsigned 2f1 (x) 3{ 4 return ((unsigned) (x != 0) - 3) / 2; 5} 6 7unsigned long long 8f2 (x) 9{ 10 return ((unsigned long long) (x != 0) - 3) / 2; 11} 12 13main () 14{ 15 if (f1 (1) != (~(unsigned) 0) >> 1) 16 abort (); 17 if (f1 (0) != ((~(unsigned) 0) >> 1) - 1) 18 abort (); 19 if (f2 (1) != (~(unsigned long long) 0) >> 1) 20 abort (); 21 if (f2 (0) != ((~(unsigned long long) 0) >> 1) - 1) 22 abort (); 23 exit (0); 24} 25