public void ShortSet_LeadingZeros()
{
Assert.AreEqual(0, ShortSet.LeadingZeros(~(0UL)));
Assert.AreEqual(1, ShortSet.LeadingZeros(~(0UL) >> 1));
Assert.AreEqual(10, ShortSet.LeadingZeros(0x0038888888888888UL));
Assert.AreEqual(62, ShortSet.LeadingZeros(0x3UL));
Assert.AreEqual(64, ShortSet.LeadingZeros(0UL));
}