[squeak-dev] Re: [ANN] Number comparison, hash, NaN, Point, and other partially ordered sets

Tim Olson tim_olson at att.net
Fri Jan 9 15:16:12 UTC 2009

On Jan 8, 2009, at 9:30 AM, Hans-Martin Mosner wrote:

> AFAIK, the Croquet project needs to have exactly reproducible float
> arithmetics on all platforms.

Are you using the exact same code on all platforms for  trancendentals 
and other floating-point functions?  If not, that is going to be the 
greatest source of different results.  They tend to vary widely on 
accuracy, since there is no 1/2 ULP accuracy requirement for those 
functions, unlike for the defined IEEE operations (+,-,*,/,sqrt)

	-- Tim Olson

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