Re: NAN and INF

[Christopher Larrieu <larrieu@jlab.org>]

Marty Kraimer wrote:

> With the message from Bob Soliday I think we are now OK for vxWorks, 
> solaris, Linux (at least recent releases), and WIN32.
>
> What about HPUX and VMS? 

 HP-UX provides both isnan() and isinf(), either as macros defined in 
math.h
or as functions implemented in libm.  One potential problem on HP-UX 10.20
is that these will return incorrect results if passed floats instead of 
doubles,
and if the preprocessor flag HPUX_SOURCE is not specified.  However, most
HP-UX sites should be using the proper flags, and it's a non-issue with 
HP-UX 11.

Chris

--
Christopher A. Larrieu
Computer Scientist, Acc. Controls Group
Thomas Jefferson National Accelerator Facility