From: "Chris K. Jester-Young" <cky944@gmail.com>
To: guile-devel@gnu.org
Subject: Re: when and unless
Date: Tue, 6 Dec 2011 14:05:52 -0500 [thread overview]
Message-ID: <20111206190552.GA14416@yarrow.destinee.acro.gen.nz> (raw)
In-Reply-To: <4EDDC8B1.3000509@gentoo.org>
On Tue, Dec 06, 2011 at 08:48:01AM +0100, Marijn wrote:
> Couldn't help but wonder why they don't return the value of the last
> body form, so I looked around a bit and both CLHS[1] and my racket
> REPL seem to agree that they should:
[...]
> Is there some other source that suggests that the return value should
> be unspecified?
This isn't so much because the return value is somehow specified or
useful, but rather to avoid breaking tail position. See this discussion
I had with Eli Barzilay where this is explained:
http://rotty.yi.org/irclogs/freenode/%23scheme/2011-11-02/#e208
(Start at the 07:24 timestamp if the fragment reference isn't working.)
Cheers,
Chris.
next prev parent reply other threads:[~2011-12-06 19:05 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-30 10:44 when and unless Andy Wingo
2011-06-30 21:46 ` Ludovic Courtès
2011-07-01 7:50 ` Andy Wingo
2011-07-01 12:47 ` Ludovic Courtès
2011-12-05 20:23 ` Andy Wingo
2011-12-06 7:48 ` Marijn
2011-12-06 8:29 ` Alex Shinn
2011-12-06 11:17 ` David Kastrup
2011-12-06 16:25 ` Andy Wingo
2011-12-06 16:42 ` David Kastrup
2011-12-06 17:35 ` Andy Wingo
2011-12-06 22:08 ` David Kastrup
2011-12-06 23:05 ` Chris K. Jester-Young
2011-12-07 9:23 ` David Kastrup
2011-12-07 15:58 ` Chris K. Jester-Young
2011-12-08 8:42 ` David Kastrup
2011-12-08 15:34 ` Chris K. Jester-Young
2011-12-08 16:10 ` David Kastrup
2011-12-08 18:10 ` Ian Price
2011-12-07 16:10 ` Chris K. Jester-Young
2011-12-06 19:05 ` Chris K. Jester-Young [this message]
2011-12-06 19:33 ` Andy Wingo
2011-12-06 14:39 ` Ludovic Courtès
2011-12-07 14:19 ` Ludovic Courtès
2011-12-07 14:27 ` David Kastrup
2012-01-07 0:16 ` Andy Wingo
2012-01-07 22:36 ` Ludovic Courtès
2012-01-20 20:19 ` Andy Wingo
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