(unknown charset) Re: [BLACKBOX] floating point arithmetic (was: CONSTant expressions)

From: (unknown charset) [at]} <Bernhard>
Date: Sun, 20 Jan 2008 14:45:19 +0100

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Robert raised some very good points. I fully agree that
CONST and VAR arithmetic should behave the same.

I remember vaguely that the flags are not necessarily
preserved when a task switches. If this is true, it makes
things even worse. Sorrily I don't remember where
I read this. Does somebody know more?

GSL (Gnu Scientific Library) allows to control the
floating point options via environment variables.

See
http://www.gnu.org/software/gsl/manual/html_node/Setting-up-your-IEEE-environment.html
http://www.gnu.org/software/gsl/manual/html_node/IEEE-floating_002dpoint-arithmetic.html

regards
    Bernhard

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Received on Sun Jan 20 2008 - 14:45:19 UTC