HELP! Need Decent RS6000 Fortran Compiler!

[Marc Andreessen]

In article <JKORPELA.91May10100448 at vipunen.hut.fi> jkorpela at vipunen.hut.fi (Jukka Korpela) writes:
>- peculiarly, if you want to test within a program whether the value
>  of X is NaN, X.NE.X seems to be the (undocumented) way; there are
>  probably ways of detecting infinities as well

Also, while I have not tried them in Fortran, isnan and its counterparts
unordered, finite, and class, can be useful for specific variable
and expression checking.

Marc

-- 
Marc Andreessen___________University of Illinois Materials Research Laboratory
Internet: andreessen at uimrl7.mrl.uiuc.edu____________Bitnet: andreessen at uiucmrl