Re: Adding Lists/Sequences

[Thierry Volpiatto]

"Drew Adams" <drew.adams@oracle.com> writes:

>>> explain when it is good (if it is) to use these destructive functions.
>>
>> Generally, speed.  Non-destructive operations often create 
>> or copy a lot of new cons cells.
>
> Or when you want to share Lisp structure. A special case is a circular
> structure, which shares part(s) of itself with itself.
>
Can you provide a small example ? 
-- 
A + Thierry Volpiatto
Location: Saint-Cyr-Sur-Mer - France