GNU bug report logs - #14868
flfinite? +nan.0 returns #t

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Göran Weinholt <goran <at> weinholt.se>
To: bug-guile <at> gnu.org
Subject: flfinite? +nan.0 returns #t
Date: Mon, 15 Jul 2013 14:30:38 +0200

[Message part 1 (text/plain, inline)]

Hello schemers,

the flfinite? procedure from (rnrs) is wrong for +nan.0:

scheme@(guile-user)> (import (rnrs))
scheme@(guile-user)> (flfinite? +nan.0)
$1 = #t

The r6rs-lib says this: "flfinite? tests whether it is not an infinity
and not a NaN". Tested with Guile 2.0.9.22-7e816-dirty.

Regards,

-- 
Göran Weinholt <goran <at> weinholt.se>
"Bring me back // to a story left untold // so we can write the ending."
 -- Aly & Fila feat. Jwaydan - We Control The Sunlight

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Message #10 received at 14868-done <at> debbugs.gnu.org (full text, mbox):

From: Mark H Weaver <mhw <at> netris.org>
To: Göran Weinholt <goran <at> weinholt.se>
Cc: 14868-done <at> debbugs.gnu.org
Subject: Re: bug#14868: flfinite? +nan.0 returns #t
Date: Tue, 16 Jul 2013 04:05:04 -0400

Göran Weinholt <goran <at> weinholt.se> writes:
> the flfinite? procedure from (rnrs) is wrong for +nan.0:
>
> scheme@(guile-user)> (import (rnrs))
> scheme@(guile-user)> (flfinite? +nan.0)
> $1 = #t

Fixed in 85b32d43e63bd2939ce3706f44a50f153ba01a46.

    Thanks!
      Mark

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