GNU bug report logs - #40972
27.0.91; assoc TESTFN's args reversed?

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Package: emacs;

Reported by: Shigeru Fukaya <shigeru.fukaya <at> gmail.com>

Date: Wed, 29 Apr 2020 21:16:02 UTC

Severity: minor

Tags: notabug, wontfix

Found in version 27.0.91

Done: Stefan Kangas <stefan <at> marxist.se>

Bug is archived. No further changes may be made.

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From: Mattias Engdegård <mattiase <at> acm.org>
To: Stefan Kangas <stefan <at> marxist.se>, Nicolas Petton <nicolas <at> petton.fr>
Cc: Michael Heerdegen <michael_heerdegen <at> web.de>, 40972 <at> debbugs.gnu.org, Shigeru Fukaya <shigeru.fukaya <at> gmail.com>
Subject: bug#40972: 27.0.91; assoc TESTFN's args reversed?
Date: Wed, 9 Sep 2020 17:51:46 +0200

9 sep. 2020 kl. 17.18 skrev Stefan Kangas <stefan <at> marxist.se>:

>> It's quite possible that the current argument order was intended but
>> never really documented. It's occasionally exploited (see
>> image-converter--filter-formats). The asymmetry is stated more
>> explicitly in the doc string and manual entry for
>> assoc-default. Closing the bug is probably wisest.
> 
> Should we fix the doc string for assoc to match assoc-default?

Good question. The TESTFN parameter was added recently (in Emacs time) to assoc (0bece6c6815). Nicolas, did you intend it to be symmetric, or defined in an asymmetric way like in assoc-default?
This bug report was last modified 4 years and 310 days ago.

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