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Re: Bug & co



Jerzy Karczmarczuk <karczma@info.unicaen.fr> writes:

> ?? Where have you been?
> This IS PERFECTLY CORRECT. Draw the structure corresponding to '(a b c d),
> four boxes. Draw a reference from l to it.
> It points to the cell whose CAR contains 'a.
> 
> After the reversal the CDR of this cell becomes ().
> 
> Don't mix-up data and variables which point to them. Data may get reconstructed,
> and then the references are invalidated.
> 

So I have to say "sorry" for this one. In fact, the real question was
the second one.

-- 
Donny: Are these the Nazis, Walter?
Walter: No, Donny, these men are nihilists. There's nothing to be
afraid of.

_Manuel Giraud_