1extern void abort (void); 2 3#define N (1 << (sizeof(int) * __CHAR_BIT__ - 2)) 4 5int f(int n) 6{ 7 if (-N <= n && n <= N-1) 8 return 1; 9 return 0; 10} 11 12int main () 13{ 14 if (f (N)) 15 abort (); 16 return 0; 17} 18