Re: varid return value

• To: Gary Hodges <Gary.Hodges@xxxxxxxx>
• Subject: Re: varid return value
• From: Steve Emmerson <steve@xxxxxxxxxxxxxxxx>
• Date: Thu, 01 Feb 2007 15:32:03 -0700

Gary,

Does the perl script exit after the error occurs?  Are you using the
NetCDF::opts() function to tell the netCDF library not to terminate
when an error occurs?

Regards,
Steve Emmerson

Gary Hodges wrote:

The netcdf man page indicates that ncvarid will return a value of -1 if an error occurs. I have the following code and I know that "head_temp2" does not exist in the netcdf file.

my $vid = NetCDF::varid($ncid, "head_temp2");
print("$vid\n);

I get the error "ncvarid: ncid 5: Variable not found" when this is run. Ultimately what I want to do is test if a variable exists and set a flag based on the result so I'm not necessarily tied to varid.

Gary

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• References:
  • varid return value
    • From: Gary Hodges