foo(int i)1 int foo(int i) 2 { 3 return ((int)((unsigned)(i + 1) * 4)) / 4; 4 } 5 6 extern void abort(void); main()7 int main() 8 { 9 if (foo(0x3fffffff) != 0) 10 abort (); 11 return 0; 12 } 13