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

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Message #77 received at 34852 <at> debbugs.gnu.org (full text, mbox):

From: "Miguel V. S. Frasson" <mvsfrasson <at> gmail.com>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Michael Heerdegen <michael_heerdegen <at> web.de>,
 "Basil L. Contovounesios" <contovob <at> tcd.ie>,
 Nicolas Petton <nicolas <at> petton.fr>, 34852 <at> debbugs.gnu.org
Subject: Re: bug#34852: 26.1; seq-intersection ignores nil as element
Date: Thu, 14 Mar 2019 20:45:55 -0300

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Please ignore this e-mail of mine.

Em qui, 14 de mar de 2019 20:08, Miguel V. S. Frasson <mvsfrasson <at> gmail.com>
escreveu:

> Hi
>
> Em qui, 14 de mar de 2019 18:43, Stefan Monnier
> <monnier <at> iro.umontreal.ca> escreveu:
> >
> > > If ELT=nil, seq-contains currently returns nil anyway;
> >
> > That's true when `testfn` is nil, but not if you provide
> > your own `testfn`.
>
> Not really.
>
> (seq-contains nil '(nil t foo) (lambda (x) t))  ->  nil
>
> It returns *nil* if testfn fails, or *nil* (ELT) if it succeds.
>
> Miguel
>

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