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


From: Nordlöw
Subject: Re: Wanted: Adding list-elements into an existing list
Date: Thu, 16 Oct 2008 06:36:30 -0700 (PDT)
User-agent: G2/1.0

On 16 Okt, 15:16, Joost Diepenmaat <jo...@zeekat.nl> wrote:
> Nordlöw <per.nord...@gmail.com> writes:
> > Is there a variant of the function add-to-list(a b) where b can be a
> > list aswell?
>
> > (add-list-elements-to-list '(a b c) '(c d e)) should evaluate '(a b c
> > d e)
>
> > or do I have to implement it myself using an iteration-construct?
>
> That's what (append) does:
>
>   append is a built-in function in `C source code'.
>
>   (append &rest SEQUENCES)
>
>   Concatenate all the arguments and make the result a list.  The result
>   is a list whose elements are the elements of all the arguments.  Each
>   argument may be a list, vector or string.  The last argument is not
>   copied, just used as the tail of the new list.
>
> --
> Joost Diepenmaat | blog:http://joost.zeekat.nl/| work:http://zeekat.nl/

(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....

/Nordlöw


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