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bug#64960: Documentation for copy-sequence
From: |
Michael Heerdegen |
Subject: |
bug#64960: Documentation for copy-sequence |
Date: |
Mon, 31 Jul 2023 07:24:21 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
uzibalqa via "Bug reports for GNU Emacs, the Swiss army knife of text
editors" <bug-gnu-emacs@gnu.org> writes:
> > > When I modify the copy, the original remains intact.
> >
> >
> > No, if you modify an element of the copy, the corresponding element of
> > the original is also changed. That's what "shared" means.
>
> Except for strings
It is irrelevant what happens when you modify elements of a copied
string because it is impossible. The statement is simply not applicable
to strings. That's why the docstring only speaks of "list, vector or
record".
Note that substituting a character in a string is not the same as
modifying the character. You are substituting a sequence element with
another one and not modifying an element in that case.
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.
Michael.
- bug#64960: Documentation for copy-sequence, (continued)
- bug#64960: Documentation for copy-sequence, Dmitry Gutov, 2023/07/30
- bug#64960: Documentation for copy-sequence, uzibalqa, 2023/07/30
- bug#64960: Documentation for copy-sequence, Dmitry Gutov, 2023/07/30
- bug#64960: Documentation for copy-sequence, uzibalqa, 2023/07/30
- bug#64960: Documentation for copy-sequence, Drew Adams, 2023/07/30
- bug#64960: Documentation for copy-sequence, uzibalqa, 2023/07/30
- bug#64960: Documentation for copy-sequence, Drew Adams, 2023/07/30
- bug#64960: Documentation for copy-sequence, uzibalqa, 2023/07/30
- bug#64960: Documentation for copy-sequence, Eli Zaretskii, 2023/07/30
- bug#64960: Documentation for copy-sequence, uzibalqa, 2023/07/30
- bug#64960: Documentation for copy-sequence,
Michael Heerdegen <=
- bug#64960: Documentation for copy-sequence, uzibalqa, 2023/07/31
- bug#64960: Documentation for copy-sequence, Michael Heerdegen, 2023/07/31
- bug#64960: Documentation for copy-sequence, Drew Adams, 2023/07/31