My conclusion from this is that _FillValue should never be used to
indicate
a default value for valid data, because it will be treated exactly as if
it
were missing, or never written, by most applications.
OK, you have convinced me this would be a very confusing & stupid thing to
do. But I suspect John Caron
still wants a rule to handle this case if it does occur. I think it would
be reasonable in this case to treat the
_FillValue as valid.
thanks for thinking of my problem. right now im working on an
implementation that would follow brian's rules as default, but still
allows a user to implement confusing and stupid things if they want :^}
"the great thing about standards is that there's so many to choose from!"