GNU bug report logs - #21701
25.0.50; ert explainer for equal can't handle negative numbers (work in 24.5)

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Message #33 received at 21701 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Anders Lindgren <andlind <at> gmail.com>
Cc: 21701 <at> debbugs.gnu.org
Subject: Re: Fwd: cl-typecase broken (was 25.0.50;
 ert explainer for equal can't handle negative numbers)
Date: Fri, 04 Dec 2015 16:25:50 -0500

> I assumed that `characterp' and the `character' type class was connected in
> Common Lisp.

They are.  The CLHS says:

          (characterp object) ==  (typep object 'character)

In Elisp that would translate to

          (cl-characterp object) ==  (cl-typep object 'character)

But cl-lib does not define cl-characterp and Elisp defines characterp
differently than Common-Lisp.

> If they aren't I guess the current system makes sense.

I think the current system can't make complete sense, sadly, because of
such subtle incompatibility between Elisp and Common Lisp.


        Stefan

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