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> Hi Ed, > > sorry for the delayed answer, I was out of office for a few days. > Howdy Notker! Sorry for *my* delayed answer! Things got a little crazy, with some travel (and more to come!) I have reread your very interesting problem report. And I am puzzled. You say that you ran "make check" on HDF5? Are you really sure about that? What I see is that all the problems have to do with floats. Now here is a dirty little secret about netCDF test code: we frequently do exact comparisons of floats. But this should work, with IEEE floating point, I believe. Could you run the tst_atts program, and then do an ncdump of the resulting data file, tst_atts.nc? Send me the output of ncdump. Thanks, Ed Let Ticket Details =================== Ticket ID: THR-976469 Department: Support netCDF Priority: Critical Status: Open