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math tests on amd64
From: |
Greg Troxel |
Subject: |
math tests on amd64 |
Date: |
Wed, 18 Jun 2008 15:56:45 -0400 |
User-agent: |
Gnus/5.110011 (No Gnus v0.11) Emacs/22.1 (berkeley-unix) |
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 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