16.cpp

extern "C" {
	double plus_jeden(double x);
}

double d(unsigned long long S, unsigned long long E, unsigned long long M) {
	S <<= 63;
	E <<= 52;

	unsigned long long a = S | E | M;

	return reinterpret_cast<double&>(a);
}

int main()
{
	// * - jedynka niejawna
	// M - bit w starszej czesci mantysy
	// m - bit w mlodszej czesci mantysy
	// . - logiczne polozenie kropki

	double a = d(0, 2 + 1023, ((1ull << 52) - 1ull));  // = 111.11111111111111111111111111...1111
	                                                   //   *MM.MMMMMMMMMMMMMMMMMMmmmmmmmm...mmmm

	double b = d(0, 21 + 1023, ((1ull << 32) - 1ull)); // = 1000000000000000000001.1111111...1111
	                                                   //   *MMMMMMMMMMMMMMMMMMMMm.mmmmmmm...mmmm

	double c = 1234567.89;

	double x = plus_jeden(a);
	double y = plus_jeden(b);
	double z = plus_jeden(c);
}