but if we only allow either lower case or upper case (not both mixed), the problem nearly disappears:

As long as you can mix numbers with letters the problem remains.

or can you find a value for $z so that ++ $z is "0"? no, you can't.

What about -1?

But thanks, some good links there. :-)


---
demerphq

<Elian> And I do take a kind of perverse pleasure in having an OO assembly language...

In reply to Re: Re: Re: $a++ allowed by $a-- is not ! why? by demerphq
in thread $a++ allowed by $a-- is not ! why? by abhishes

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