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Re: [Help-gsl] Error handling
From: |
Brian Gough |
Subject: |
Re: [Help-gsl] Error handling |
Date: |
Wed, 19 Jul 2006 18:24:30 +0100 |
User-agent: |
Wanderlust/2.14.0 (Africa) Emacs/21.3 Mule/5.0 (SAKAKI) |
At Wed, 19 Jul 2006 13:49:51 +0200,
Raphael Mack wrote:
>
> Am Dienstag, den 18.07.2006, 17:19 +0100 schrieb Brian Gough:
> > We don't handle IEEE overflow, it's left to the user to detect it.
>
> ok, but this does not mean, that the return value of a gsl function will
> never be GSL_EOVRFLW and GSL_EUNDRFLW, does it?
The error codes are returned for cases other than IEEE
overflow/underflow. Mostly that is just in the special functions.
> > You can use the standard C function fetestexcept() to check whether
> > any IEEE exceptions were raised during a function call and then reset
> > them if necessary.
>
> Thanks. But are these functions thread safe?
Off the top of my head I don't know, if you find out can you let me
know. Thanks.
--
Brian Gough
Network Theory Ltd,
Publishing Free Software Manuals --- http://www.network-theory.co.uk/