5.6 ncgen4
The ncgen4 tool is an experimental version of ncgen that
is capable of producing netcdf-4 files. It operates
essentially identically to ncgen, except that generation
of FORTRAN code is not supported.
The CDL input to ncgen4 may include data model constructs
from the netcdf-4 data model. In particular, it includes
new primitive types such as unsigned integers and strings,
opaque data, enumerations, and user-defined constructs using
vlen and compound types.
The ncgen4 man page should be consulted for more detailed information.