Re: logical stuff

[Christoph Reck <Ch...@dlr.de>]

here my 2c:

> 1) What do we do about determining if a reference is null in VTL?
>[snip]
>  - use something like : #if( $foo == null )

+0, but make it uppercase NULL to reflect the constantness of it.

>[snip]
>  - or #ifdefined( $foo )  or #ifdef( $foo )
>     This is trivially easy to do.

but not necessary.

I think instead of defining implicetely a NULL constant make it
simple and use a real directive $NULL. Does #if($foo == $bar) work 
already when both are null?

> 
>  - or another operator :   #if( ?$foo )

-1, I agree: "Hell no. No PERL!"

> 
> 2)  Should we allow the following aliases for the logicals :

-1 on overloading. 
Keep it simple '&', '|', and '=' do the job fine.


:) Christoph

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Happy new Year to all of you!