We currently use the "group" feature in our latest file format. When we
read older files (based on Netcdf-3), we discovered that NC3_inq_ncid always
returns the file ID as the group ID. We expected the function to return an
error, indicating the "group" was not found (similar to the behavior of
netcdf-4.1.1).
I suggest the function have the following behavior:
If name corresponds to the root id (i.e. is blank or "/") then the function
should behave as it currently does returning NC_NOERR, since that would be a
valid call even for version 3 files. Otherwise, the function should return
an error condition.
Best Regards,
Roy Dennington
Semichem, Inc.
