From: Barry Margolin <barmar@alum.mit.edu>
To: help-gnu-emacs@gnu.org
Subject: Re: How to discard return value of a function?
Date: Mon, 20 Aug 2012 20:13:35 -0400 [thread overview]
Message-ID: <barmar-92C689.20133520082012@news.eternal-september.org> (raw)
In-Reply-To: 88a339ab-f737-40d1-8f3a-7cd6b66c585e@googlegroups.com
In article <88a339ab-f737-40d1-8f3a-7cd6b66c585e@googlegroups.com>,
jpkotta <jpkotta@gmail.com> wrote:
> On Sunday, August 19, 2012 4:52:21 AM UTC-5, Leo wrote:
> > (progn (YOURFUNCTION ...) nil)
>
> You can also use advice, but (progn ... nil) is probably preferable.
>
> (defun foo ()
> (interactive)
> t)
>
> (defadvice foo (after modify-return-value activate)
> (setq ad-return-value nil))
If he advised search-forward to return nil, that would break lots of
other things. He just wants to ignore the return value in one
particular place where he calls it.
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
next prev parent reply other threads:[~2012-08-21 0:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-19 9:35 How to discard return value of a function? Plamen Tanovski
2012-08-19 9:52 ` Leo
[not found] ` <mailman.7236.1345369957.855.help-gnu-emacs@gnu.org>
2012-08-20 19:47 ` jpkotta
2012-08-21 0:13 ` Barry Margolin [this message]
2012-08-21 15:59 ` jpkotta
2012-08-22 15:04 ` Stefan Monnier
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