Thread: Why isn't this working?

Code:

#include <iostream>
#include <windows.h>

int main(void)
{
	DWORD start = GetTickCount();

	for (int i = 0; i < 10000; i++)
		;

	std::cout << GetTickCount() - start << std::endl;

	return 0;
}

I always get 0 as the result. Thanks.