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Re: 961002: problem with ncdump (fwd)
- Subject: Re: 961002: problem with ncdump (fwd)
- Date: Wed, 02 Oct 1996 14:57:36 -0600
>To: address@hidden
>From: Patrick Guio <address@hidden>
>Subject: problem with ncdump (fwd)
>Organization: .
>Keywords: 199610020843.AA13593
Patrick,
Oops, I didn't test that patch I sent you sufficiently. It should be
portable, but it contains a peculiar statement that is incorrectly
compiled by several Unix systems, and incorrectly optimized by several
others:
#define IS_FINITE(x) (((x)-(x))==((x)-(x)))
This macro works OK on AIX 4.2, HP-UX 9, SunOS 4.x, SunOS 5.x.
It works OK unless compiled with the -O flag on ULTRIX and IRIX 6.2.
It gets optimized incorrectly by default on IRIX64 and OSF1.
I'll have to keep looking for a portable way to determine whether a
number is an IEEE infinity value.
--Russ
_____________________________________________________________________
Russ Rew UCAR Unidata Program
address@hidden http://www.unidata.ucar.edu
