26 Sep
2011
26 Sep
'11
5:34 p.m.
On 26/09/2011, at 11:08 AM, Daniel Fischer wrote:
And: distinguish NaNs or identify them all? I lean towards identifying them all, I've never cared for whether they come from 0/0, Infinity - Infinity or what, but I could be convinced.
There are very many bit patterns that count as NaNs, but only two classes worth distinguishing: qNaNs and sNaNs. The payload bits have no cross-platform significance; if it comes to that, there are two opposing conventions for which value of the is-it-quiet bit, so it's not clear if any distinction is worth making.