Thanks for responding (was IsUnsigned() ?)

[Jeffrey H. Hsu]

I would like to express my appreciation to everyone who took the time to
respond to my question.

I realize now, after hearing from several professionals, that the question
was aimed to throw me, which it did.

Some of you gave the solution I gave. Others had different insights. In any
case, I've learned something.

Thanks again,

Jeff
Stanford University