4 f (long long x
, long long y
)
12 if ((y
< 0) || (r
>= 0))
17 if ((y
> 0) || (r
< 0))
38 f (0x8000000000000000LL
, 0x8000000000000000LL
);
42 f (0x8000000000000000LL
, -1LL);
46 f (0x7fffffffffffffffLL
, 0x7fffffffffffffffLL
);
50 f (0x7fffffffffffffffLL
, 1LL);
54 f (0x7fffffffffffffffLL
, 0x8000000000000000LL
);