extern void abort (); | |
int f(int x) | |
{ | |
return (x >> (sizeof (x) * __CHAR_BIT__ - 1)) ? -1 : 1; | |
} | |
volatile int one = 1; | |
int main (void) | |
{ | |
/* Test that the function above returns different values for | |
different signs. */ | |
if (f(one) == f(-one)) | |
abort (); | |
return 0; | |
} | |