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From: bojohan+news@dd.chalmers.se (Johan Bockgård)
To: emacs-devel@gnu.org
Subject: Re: [PATCH] New convenience macros
Date: Thu, 23 Aug 2007 16:12:30 +0200	[thread overview]
Message-ID: <yoijhcmqfigh.fsf@gamma02.me.chalmers.se> (raw)
In-Reply-To: microsoft-free.874piq4j3h.fsf@youngs.au.com

Steve Youngs <steve@sxemacs.org> writes:

> However, there are situations where this optimisation won't work,
> here's an example...
>
>   (if (and (featurep 'simple) (featurep 'xemacs)) a b)
>
> warns about free variables for both `a' and `b'.  So I think having the
> macros as well as the optimisation is a good idea.

It does the right thing if you reverse the order of the feature tests.

The compiler could do better though.

-- 
Johan Bockgård

  reply	other threads:[~2007-08-23 14:12 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-18 14:30 [PATCH] New convenience macros Steve Youngs
2007-08-19 15:52 ` Richard Stallman
2007-08-20  2:06   ` Steve Youngs
2007-08-20 10:58     ` Kim F. Storm
2007-08-20 18:30     ` Richard Stallman
2007-08-23 10:54       ` Steve Youngs
2007-08-23 14:12         ` Johan Bockgård [this message]
2007-08-23 14:47         ` Stefan Monnier
2007-08-23 18:24           ` Steve Youngs
2007-08-23 19:12             ` Stefan Monnier
2007-08-26 14:52               ` Steve Youngs
2007-08-26 22:47                 ` Richard Stallman
2007-08-27  3:20                   ` Steve Youngs
2007-08-20  4:09 ` Stefan Monnier
2007-08-23 11:13   ` Steve Youngs
2007-08-23 15:11     ` Stefan Monnier
2007-08-23 18:24       ` Steve Youngs

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