From: Mark H Weaver <mhw@netris.org>
To: Taylan Ulrich Bayirli/Kammer <taylanbayirli@gmail.com>
Cc: guile-devel@gnu.org
Subject: Re: 2.0.11 on OS X 10.9 / Xcode 5.1
Date: Thu, 24 Apr 2014 12:04:53 -0400 [thread overview]
Message-ID: <87ha5iaf2y.fsf@yeeloong.lan> (raw)
In-Reply-To: <87a9bcndcy.fsf@taylan.uni.cx> (Taylan Ulrich Bayirli's message of "Wed, 23 Apr 2014 19:51:25 +0200")
Taylan Ulrich Bayirli/Kammer <taylanbayirli@gmail.com> wrote:
> Running numbers.test
> ;;; ("#i1@-0" 1.0 -0.0)
> FAIL: numbers.test: string->number: valid complex number strings
>
> The issue seems to be that (imag-part #i1@-0) => 0.0 instead of -0.0,
Taylan and I did some more debugging on IRC, and we determined that this
is ultimately caused by a bug in the 'cexp' function in MacOS X's math
library. The first two rules given in C11 G.6.3.1 imply that
cexp(0.0-0.0i) must return 1.0-0.0i, but on MacOS the result is
1.0+0.0i.
Mark
prev parent reply other threads:[~2014-04-24 16:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-03 19:35 2.0.11 on OS X 10.9 / Xcode 5.1 Taylan Ulrich Bayırlı/Kammer
2014-04-09 15:14 ` Taylan Ulrich Bayırlı/Kammer
2014-04-09 15:38 ` Taylan Ulrich Bayırlı/Kammer
2014-04-10 14:10 ` Greg Troxel
2014-04-11 1:08 ` Mark H Weaver
2014-04-22 14:36 ` Taylan Ulrich Bayirli/Kammer
2014-04-22 16:28 ` Mark H Weaver
2014-04-23 17:51 ` Taylan Ulrich Bayirli/Kammer
2014-04-24 14:20 ` Taylan Ulrich Bayirli/Kammer
2014-04-24 16:04 ` Mark H Weaver [this message]
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