Re: math tests on amd64

[Marijn Schouten (hkBst)]

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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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