Re: Basic questions about elisp

[Francis Moreau]

On Nov 10, 1:11 pm, Joost Kremers <joostkrem...@yahoo.com> wrote:
> Francis Moreau wrote:
> > p...@informatimago.com (Pascal J. Bourguignon) writes:
> >> Well, there are several places where it's covered, but here is one
> >> where it's explicitely explained:
>
> >> (info "(elisp)Rearrangement")
> [...]
>
> > ok that tells: "don't do that !" but it doesn't tell why not...
>
> just imagine a list as an object living somewhere in the memory of your
> computer. then try to figure out which list gets *modified* by the call to
> nconc, keeping in mind that nconc does *not* copy its arguments before doing 
> its
> job.
>

I don't really want to imagine some scenarios when reading this kind
of documentation.

BTW, the documentation is actually taking about the non-last argument,
however I was using a constant list for the last argument. So it
wouldn't apply in my case...

Thanks