GNU bug report logs - #34852
26.1; seq-intersection ignores nil as element

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Package: emacs;

Reported by: "Miguel V. S. Frasson" <mvsfrasson <at> gmail.com>

Date: Thu, 14 Mar 2019 02:24:01 UTC

Severity: normal

Tags: fixed

Found in version 26.1

Fixed in version 27.1

Done: Nicolas Petton <nicolas <at> petton.fr>

Bug is archived. No further changes may be made.

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: "Miguel V. S. Frasson" <mvsfrasson <at> gmail.com>
Cc: 34852 <at> debbugs.gnu.org
Subject: bug#34852: 26.1; seq-intersection ignores nil as element
Date: Thu, 14 Mar 2019 13:07:19 +0100

"Miguel V. S. Frasson" <mvsfrasson <at> gmail.com> writes:

> seq-intersection skips nil as common element, so returns wrong result.
>
> Reproducing from emacs -Q:
>
> In *scratch* buffer, eval the expressions
>
> (progn
>   (require 'seq)
>   (seq-intersection '(1 2 nil) '(1 nil) 'eq))
>
> -> (1)
>
> (seq-intersection '(1 2 nil) '(1 nil) 'equal)
>
> -> (1)
>
> Expected result in both cases: (1 nil)

Indeed.

Nicolas, can you have a look?  We probably can't use `seq-contains' in
the implementation.


Thanks,

Michael.
This bug report was last modified 6 years and 64 days ago.

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