There is no deep reason why it is not allowed.  
It would be a compatible extension to allow it.  

-- Stephen

On Sun, Oct 21, 2007 at 09:48:25PM +0200, Ralf Hemmecke wrote:
> >OK.  I'd still prefer to keep the language simple.  What I would like a lot
> >however is something like
> >
> >for e in g repeat
> >    (a, b) := e
> >    ...
> 
> Possible in Aldor
> 
> >or even
> >
> >for (a, b) in g repeat
> >    ...
> >
> >given that g returns a Cross.
> 
> Not possible in Aldor.
> 
> 
> 
> Stephen Watt,
> 
> is there a particular reason why the latter construction is not allowed 
> in the Aldor language (I am not speaking of the compiler)?
> 
> Ralf


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