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Re: [Help-gsl] Make check fails

From: Michael Braun
Subject: Re: [Help-gsl] Make check fails
Date: Tue, 26 May 2009 17:01:55 -0400


I switched the -fast flag to -O2, and it worked. Is this possibly a bug in GCC or GSL, or is it just life with optimized code?


On May 26, 2009, at 9:32 AM, Brian Gough wrote:

At Sun, 24 May 2009 16:04:07 -0400,
Michael Braun wrote:
FAIL: random-libc5, ratio of int to double (1.45346 observed vs
1.66301 expected) [107]
FAIL: test

So I'm not sure if this is a feature or a bug (or something I'm doing
wrong).  Any ideas?

Do you see the same failure if the library is compiled without
optimisation (or with a lower level, e.g. the standard -O2)?  Those
tests certainly pass on other 64 bit platforms so I would suspect a
problem with the optimisation.

Brian Gough
(GSL Maintainer)

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Michael Braun
Homer A. Burnell Career Development Professor, and
        Assistant Professor of Management Science (Marketing Group)
MIT Sloan School of Management
One Amherst St., E40-169
Cambridge, MA 02142

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