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Re: math tests on amd64
From: |
Marijn Schouten (hkBst) |
Subject: |
Re: math tests on amd64 |
Date: |
Fri, 20 Jun 2008 19:44:36 +0200 |
User-agent: |
Thunderbird 2.0.0.14 (X11/20080620) |
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Greg Troxel wrote:
> I ran 'make check' on guile on NetBSD-current on amd64, and got a
> failure:
>
> guile> (version)
> "1.8.5"
> guile> (eqv? 0.0 (exp -inf.0))
> #f
> guile> (exp -inf.0)
> +nan.0
On my amd64 linux system I get:
guile> (version)
"1.8.5"
guile> (eqv? 0.0 (exp -inf.0))
#t
guile> (exp -inf.0)
0.0
HTH, Marijn
> On i386 and sparc64 this passes. I ran paranoia and that passed (with
> not even flaws). Does this test pass for others on other operating
> systems on amd64? If so, I should look into whether it's a NetBSD bug,
> variance in floating point flags, or a guile bug.
>
> So far this looks like a failure of NetBSD on amd64 to follow POSIX:
> http://www.opengroup.org/onlinepubs/009695399/functions/exp.html
- --
Marijn Schouten (hkBst), Gentoo Lisp project, Gentoo ML
<http://www.gentoo.org/proj/en/lisp/>, #gentoo-{lisp,ml} on FreeNode
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