keep in mind that not all hardware leaves the nan bits alone.
it seems to be more common of late thast they specify that all nan
results are canonical nans. whether signalling or quiet.
that was why R stopped using a specific nan payload to represent its NA
(Not Available) value. and canonical-only has only gotten more common
since then.
-JimC
--
James Cloos <
cl...@jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6