GNU bug report logs - #75170
add-to-alist: new function

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Package: emacs;

Reported by: Roland Winkler <winkler <at> gnu.org>

Date: Sun, 29 Dec 2024 05:35:02 UTC

Severity: wishlist

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From: Drew Adams <drew.adams <at> oracle.com>
To: Stephen Gildea <stepheng+emacs <at> gildea.com>, "75170 <at> debbugs.gnu.org" <75170 <at> debbugs.gnu.org>
Subject: bug#75170: add-to-alist: new function
Date: Tue, 21 Jan 2025 22:53:11 +0000

> The test for presence of the car of ELT-CONS is done
> with `equal'."
>   (assoc (car elt-cons) (symbol-value alist-var))

Seems like you should consider adding an optional
TESTFN arg for the equality predicate.  There's a
reason Lisp has had both `assq' and `assoc' since
forever.  And there's a reason that `assoc' itself
later began to accept such an optional arg.
This bug report was last modified 142 days ago.

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