Re: Wanted: Adding list-elements into an existing list

[Barry Margolin]

In article 
<f3c2bc36-6120-4567-9297-3e91bf32e350@u46g2000hsc.googlegroups.com>,
 Nordlöw <per.nordlow@gmail.com> wrote:

> (append) does not modify its first argument which is what I want.
> 
> I can solve it through
>   (setq x (append x y))
> 
> but before I create this new function for this I just wanted to make
> sure that no such function already exists....

nconc is like append, but modifies the first argument.

But you still have to use (setq x (nconc x y)), in case x is initially 
the empty list, because you can't modify the empty list in place.

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
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