GNU bug report logs - #53227
master: Wrong error message with M-: (funcall).

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Package: emacs;

Reported by: Alan Mackenzie <acm <at> muc.de>

Date: Thu, 13 Jan 2022 07:40:02 UTC

Severity: minor

Tags: patch

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

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From: Alan Mackenzie <acm <at> muc.de>
To: 53227 <at> debbugs.gnu.org
Subject: bug#53227: master: Wrong error message with M-: (funcall).
Date: Thu, 13 Jan 2022 07:39:05 +0000

Hello, Emacs.

In the master branch, with emacs -Q, do

    M-: (funcall) RET

..  The error message one sees is

    (void-function nil)

..  This is wrong.  There is no function, nil or otherwise, supplied to
funcall.  The error message ought to be "Too few arguments", or
something like that.

The cause of the bug lies in Ffuncall in .../src/eval.c.  There, the
code uses args[0] without first checking that nargs > 0.

-- 
Alan Mackenzie (Nuremberg, Germany).
This bug report was last modified 3 years and 125 days ago.

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