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

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Message #31 received at 7408 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Jari Aalto <jari.aalto <at> cante.net>
Cc: 7408 <at> debbugs.gnu.org
Subject: Re: bug#7408: Linux patchutils: Development of the project?
Date: Tue, 16 Nov 2010 17:21:27 -0500

>> 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.

You look at it the wrong way: the problem is not with dolist, it's that
you use `return' which is a special form that's not defined in standard
Elisp.  After (require 'cl), `return' gets defined and things work as
you expect.


        Stefan

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