Re: Please listen to Ulrich here...
On 2013-08-08 23:29:31 -0400, Michel Hack wrote:
> Vincent Lefèvre, replying to Baker's question:
> > However CA is intended to be implemented in hardware. In software,
> > you would need to extract the sign, exponent and significand from
> > each FP datum... This should be compared to pure FP algorithms
> > (e.g. based on EFT's like TwoSum).
>
> Any standard for CA would describe *behaviour*, not implementation.
CA is there only to provide a particular EDP implementation.
It it *not* a generic arithmetic. For instance, you can't do
polynomial evaluation with it.
> I still believe CA deserves its own standard; unfortunately that takes a
> lot of work, and it certainly couldn't happen in time for 1788 to refer
> to it. Surely we don't want to drag P1788 out for another five years!
P1788 doesn't need to refer to it.
--
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)