varid return value

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To: netcdf-perl@xxxxxxxxxxxxxxxx
Subject: varid return value
From: Gary Hodges <Gary.Hodges@xxxxxxxx>
Date: Thu, 01 Feb 2007 15:20:14 -0700

The netcdf man page indicates that ncvarid will return a value of -1 ifan 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 aflag based on the result so I'm not necessarily tied to varid.


Gary

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