Hi,
The modification that Harvey made to the nc_type structure is
something that I would find quite useful if it were in the
standard netCDF distribution. That is, adding an undefined
type to the enumerated list.
NC_NAT = 0, /* NAT = 'Not A Type' (c.f. NaN) */
Having such a type has proved necessary when checking whether
a variable object has had its type defined yet. I do this all
the time in NCO (especially to work with packed values) and I end up
comparing an nc_type to an integer flag, which generates a compiler
warning. It would be cleaner to be able to set the nc_type value of
un-typed objects to NC_NAT which is enumerated in nc_type.
Please consider adding this modification to netCDF 3.5.
Thanks,
Charlie
/*
* The netcdf external data types
*/
typedef enum {
NC_NAT = 0, /* NAT = 'Not A Type' (c.f. NaN) */
NC_BYTE = 1, /* signed 1 byte integer */
NC_CHAR = 2, /* ISO/ASCII character */
NC_SHORT = 3, /* signed 2 byte integer */
NC_INT = 4, /* signed 4 byte integer */
NC_FLOAT = 5, /* single precision floating point number */
NC_DOUBLE = 6 /* double precision floating point number */
} nc_type;
--
Charlie Zender zender@xxxxxxx (949) 824-2987/FAX-3256, Department of
Earth System Science, University of California, Irvine CA 92697-3100
