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Re: A Level 2 query



On 2013-06-21 15:08:33 +0100, John Pryce wrote:
> I await an answer to my query: what about an implementation that by
> default evaluates an expression in single precision (but stores the
> result in double) even when its inputs are double precision
> intervals? My view at present is: that doesn't violate the standard,
> it's just lousy QoI.

It doesn't violate the standard in the "valid" accuracy mode. But
if the implementation claimed that the function is implemented in
the "accurate" or "tightest" accuracy mode, this would violate the
standard.

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Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/>
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