Determining IEEE NaN and INF on RISC Ultrix

[Frank Wortner]

The ULTRIX 4.0 distribution includes a fixed /usr/include/nan.h file. 
If you can't upgrade,
your could try just reversing the bit fields in the nan.h file.  For
example, in the inf_parts
structure, the fraction_low bit field is the first instead of the last.

Regards,
					Frank