Austin Hastings said:
> Let's look at boolean xor:
>
> if ($a xor $b xor $c) {...}
>
> should succeed only when exactly one of ($a, $b, $c) is true.I think it is generally accepted that xor is true iff an odd nnumber of its argumnets are true. -- Paul Johnson - [EMAIL PROTECTED] http://www.pjcj.net
