Ja>when do i use & verses &&? same with || and |  ?
TH>The single use performs a bit by bit operation to a result. The
TH>double versions performs a boolean operation. A boolean only
TH>coonsiders one of two states, 0 or -1. This is very important in
TH>evaluating expressions in conditional statements.
DM>Where did you come up with -1?
Not sure, seemed like a dany thing to say even though it is actually
a '1' like you've said.
My error, sorry.
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