int main(void) {
ll_t a = 0xff;
- ll_t b = 0x123456789;
+ ll_t b = 0x123456789LL;
ll_t c = 0x8001023000002460LL;
double d = (double)c;
ull_t ua = 0xff;
- ull_t ub = 0x123456789;
+ ull_t ub = 0x123456789ULL;
ull_t uc = 0x8001023000002460ULL;
printf("%lld * %lld = %lld\n", a, b, mul_ll(a, b));