GNU bug report logs - #69709
`sort` interface improvement and universal ordering predicate

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Package: emacs;

Reported by: Mattias Engdegård <mattias.engdegard <at> gmail.com>

Date: Sun, 10 Mar 2024 13:29:02 UTC

Severity: normal

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Message #56 received at 69709 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: 69709 <at> debbugs.gnu.org,
 Gerd Möllmann <gerd.moellmann <at> gmail.com>,
 Mattias Engdegård <mattias.engdegard <at> gmail.com>,
 Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#69709: `sort` interface improvement and universal ordering
 predicate
Date: Sat, 23 Mar 2024 16:09:16 -0400
> So others will have to go around each such project, ensure the original list
> is "owned" and add the :in-place argument, to reach the optimum
> performance. That's why, I think, 'sort' is mutating in most languages.

I think it's mutating in "most languages" because "most languages" are
imperative and because those primitives usually operate on arrays (a
"naturally imperative" data structure) rather than on singly-linked
lists (a "naturally more immutable" data structure).


        Stefan





This bug report was last modified 1 year and 89 days ago.

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