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[netCDF #LHM-940222]: netcdf.inc bug

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  • Subject: [netCDF #LHM-940222]: netcdf.inc bug
  • Date: Thu, 15 Apr 2010 08:02:18 -0600
> Hi,
> 
> I currently use netcdf-4.1.1 from the web page.
> There are bugs in netcdf2.inc
> 
> doubleprecision fildoub
> 
> ...
> 
> parameter (fildoub = 9.9692099683868690e+36)
> 
> But double precision values  in Fortran are denoted with an d in the
> exponent and not an e ! Correct would be:
> 
> 
> parameter (fildoub = 9.9692099683868690d+36)
> 
> 
> Analog bug in netcdf3.inc
> 
> doubleprecision nf_fill_double
> 
> ...
> 
> parameter (nf_fill_double = 9.9692099683868690e+36)
> 
> Correct would be:
> 
> parameter (nf_fill_double = 9.9692099683868690d+36)
> 
> Cheerio,
> Luis
> --
> \\\\\\
> (-0^0-)

Gutentag Luis!

One interesting thing about your bug report is that the fortran include file 
netcdf2.inc contains code that is 15 years old at least. And yet no one has 
ever noticed this bug before!

I have researched the issue and agree that, according to the fortran standard, 
double precision real constants should use the "d" not the "e" in their 
exponent.

But how did you notice this? Did it cause a problem for you? Did you get a 
warning from your compiler? Or did you just notice it while reading the code 
one day?

I have checked in fixes. They will be available in the next snapshot, assuming 
they don't break the snapshot build (another problem, currently being worked 
on, precludes me from checking at this time). So this will be tested with 
tonight's snapshot release testing.

Thanks for pointing this out!

Ed


Ticket Details
===================
Ticket ID: LHM-940222
Department: Support netCDF
Priority: Normal
Status: Closed