On Sun, Dec 29, 2019, 10:51 AM Steve Barnes <GadgetSteve@live.co.uk> wrote:

I do have to disagree here as it is entirely possible, in the world of hardware interfacing, that an external hardware device could possibly supply an sNaN as a something was seriously wrong flag, (as opposed to a I haven't got any data at the moment).

Wouldn't the right time to handle an sNaN coming from hardware *always* be upon acquisition rather than sticking it in a collection to operate on later? Fail-fast fail-hard seems like basic good design, that much more so when it comes to hardware.