Re: Sun's interval library
On 2013-07-01 10:14:42 -0400, Michel Hack wrote:
> (2) "Quantum" only applies to Decimal formats, and only affects the
> representation, NOT the value. It is also only relevant for exact
> results; inexact results always use the smallest possible quantum
> in order to deliver as much precision as the format allows.
>
> The "quantum" of a BFP datum is always 1 ulp, and the precision is
> always full except for subnormals, which all have the same quantum,
> namely the smallest subnormal value.
AFAIK the notion of ulp is not defined in IEEE 754-2008.
One can see it as a synonymous of quantum (the term "ulp"
suggests that it is a property of the representation).
--
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/>
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