"Kent Karlsson" <kentk@md.chalmers.se> writes:
[...]
| No-one seems to have come up with a really good use
| for *signalling* NaNs, but seems to be and inheritance from pre-IEEE
| floating point implementations ("invalid operands")...
I've seen a software (written in C) that used signalling NaN to tag
"unintialized data". I think that was a case of "good use".
-- Gaby