"Florian Weimer" <fw@deneb.enyo.de> a �crit dans le message news: 877kwycfw7.fsf@deneb.enyo.de...
> "Jean-Pierre Rosen" <rosen@adalog.fr> writes:
>
> > And is the result really portable? Even for numerics on a non-IEEE
> > machine ?
>
> Yes, I think so. Some people claim that the JVM support for floating
> point operations was designed so that it runs fast and correctly only
> on Sun's hardware. ;-)
What makes you think so ? The trouble is that Java *requires* IEEE arithmetic. On non IEEE hardware you have a choice of a) emulate
IEEE in software (correct and slow) or b) ignore the requirement (incorrect and fast). On a non-IEEE number-crunching machine (like
SGI), my bet is that the solution b) will be taken, hence my concern...

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           J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr