public void TestUInt64()
{
var b = sizeof(UInt64) * 8 - 1;
var start = unchecked ((UInt64)(UInt64)1 << b);
UInt64 v = start;
for (var i = 0; i < (sizeof(UInt64) * 8) - 1; i++)
{
v = v.RorCopy();
var a = (UInt64)((UInt64)1 << (b - 1 - i));
_output?.WriteLine(Convert.ToString((Int64)a, 2).PadLeft(64, '0') + " == " + Convert.ToString((Int64)v, 2).PadLeft(64, '0'));
Assert.Equal(a, v);
}
v = v.RorCopy();
_output?.WriteLine(Convert.ToString((Int64)start, 2).PadLeft(64, '0') + " == " + Convert.ToString((Int64)((UInt64)v), 2).PadLeft(64, '0'));
Assert.Equal((UInt64)start, (UInt64)(UInt64)v);
}
