GNU bug report logs - #64960
Documentation for copy-sequence

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Message #56 received at 64960 <at> debbugs.gnu.org (full text, mbox):

From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: uzibalqa <uzibalqa <at> proton.me>
Cc: 64960 <at> debbugs.gnu.org, eliz <at> gnu.org
Subject: Re: bug#64960: Documentation for copy-sequence
Date: Tue, 01 Aug 2023 05:56:56 +0200

uzibalqa <uzibalqa <at> proton.me> writes:

> > The same is true for the list (1 2 3) for example. Exactly the same
> > situation as for a string: You can replace the number 2 in a copy with
> > another one but you can't modify the number 2 in the list. Numbers and
> > characters are not mutable.
>
> This is the difficult part.  You have a copy of a list and you can swap
> elements but not make new ones.  So what you share is the address, where
> element 2 say uses the address of element 3.
>
> All this copy-sequence is then quite restrictive in its capabilities.
> It does not allow much changes.

I must admit that I don't understand this answer.  What does "can't make
new elements" mean?  "Does not allow changes"...you lost me here.

Michael.

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