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Re: 960317: NetCDF-2.4 on IRIX64 ...

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  • Subject: Re: 960317: NetCDF-2.4 on IRIX64 ...
  • Date: Mon, 18 Mar 1996 08:22:16 -0700
>To: address@hidden
>From: "Armin Beckert" <address@hidden>
>Subject: NetCDF-2.4 on IRIX64 ...
>Organization: German Aerospace Research Establishment (DLR)
>Keywords: 199603181043.AA02941

Hi Armin,

> (The programming language is C.)
> I'm working on both, 32-bit and 64-bit architectures.
> Now I have a Problem with the netcdf-2.4-Version on Irix64.
> 
> I want to write out a long-Variable in a netCDF-File (as NC_LONG)
> (under IRIX64),
> This causes the same problems than writing out a long-Variable as NC_SHORT on
> a 32-bit machine.
> Writing out a field of long values, causes a field in which is written only
> every second value.
> What must I do, to make netCDF understand, that I want to write out a
> long-value (in 64-bit mode)??
> Is it necessary to define a special type for long (typedef)
> in my header-Files ??

There is already a typedef, `nclong', defined in the netcdf.h include file
that is intended to be used for NC_LONG data.  Note that NC_LONG data, as
stored on the disk, is still only 32 bits, and on 64-bit platforms such as
the DEC Alpha and IRIX64, the nclong typedef is an `int'.

There is no netCDF type corresponding to 64-bit integers yet.  Currently, if
you want more precision then you can get in 32-bit integers, you have to use
type NC_DOUBLE.

______________________________________________________________________________

Russ Rew                                           UCAR Unidata Program
address@hidden                              http://www.unidata.ucar.edu