Ternary (or hook) operators rule. Some people don't like
them, but they generally don't like perl anyways. I say
use the heck out of 'em. As for GOTO in C, well, C and
C++ and even Java have ternary operators. Think of it
as a more consise way of saying if - else.

Sorry, but I don't have any suggestions for checksums,
what you have looks good to me.
I just had to show my appreciation for ? :

Jeff