GNU bug report logs - #7408
23.2.1 dolist -- subr.el and cl-macs differ with nil-block return

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Package: emacs;

Reported by: Jari Aalto <jari.aalto <at> cante.net>

Date: Mon, 15 Nov 2010 10:47:02 UTC

Severity: normal

Found in version 23.2+1-4

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

Bug is archived. No further changes may be made.

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From: Lennart Borgman <lennart.borgman <at> gmail.com>
To: Jari Aalto <jari.aalto <at> cante.net>
Cc: 7408 <at> debbugs.gnu.org
Subject: bug#7408: Linux patchutils: Development of the project?
Date: Tue, 16 Nov 2010 22:59:53 +0100

On Tue, Nov 16, 2010 at 10:25 PM, Jari Aalto <jari.aalto <at> cante.net> wrote:
> Glenn Morris <rgm <at> gnu.org>
>> subr.el has had a dolist definition since at least Emacs 21.x; ie 9 years.
>> Therefore this cannot be a major issue in practice.
>
> In my book it is still a bug, no matter how many years ago this bug were
> introduced:
>
>    - To have two different implementations of same function.
>    - To not be able to rely on uniform behavior.

IMO subtle differences are among the worst bugs. It can take a long
time to discover what is wrong and you often guess wrong (especially
if you are not aware of how difficult it can be).

And the subtle difference often shows up in complicated situations.

Maybe the cl version should be renamed?
This bug report was last modified 14 years and 185 days ago.

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