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[Bug-gsl] Re: more info on vector check failure on solaris
From: |
Brian Gough |
Subject: |
[Bug-gsl] Re: more info on vector check failure on solaris |
Date: |
Tue, 13 Jan 2004 11:33:01 +0000 |
Britton Kerin writes:
> r: 1, x: 3, y: 3, z: 1
> fabs(r - z): 1.000000000000000000e+00
> 2 * GSL_FLT_EPSILON * fabs(z): 2.384185791015625000e-07
>
> r: 0.8, x: 4, y: 5, z: 0.8
> fabs(r - z): 8.000000000000000444e-01
> 2 * GSL_FLT_EPSILON * fabs(z): 1.907348632812500106e-07
Hello,
The output of fabs(r-z) is inconsistent with the values of r and z,
which appears to be compiler problem.
Try the latest version of gcc -- if it has the same problem try to
come up with a small test case and file it as bug report for gcc
http://gcc.gnu.org/bugs.html
best regards,
--
Brian Gough