6.12 Define Fletcher32 Parameters for a Variable: nc_def_var_fletcher32
The function nc_def_var_fletcher32 sets the fletcher32 parameters for a
variable in a netCDF-4 file.
This function must be called after the variable is defined, but before
nc_enddef is called.
Usage
nc_def_var_fletcher32(int ncid, int varid, int fletcher32);
ncid- NetCDF ID, from a previous call to nc_open or nc_create.
varid- Variable ID.
fletcher32- If this is non-zero, fletcher32 checksums will be turned on for this
variable.
Errors
nc_def_var_fletcher32 returns the value NC_NOERR if no errors
occurred. Otherwise, the returned status indicates an error.
Possible return codes include:
NC_NOERR- No error.
NC_BADID- Bad ncid.
NC_ENOTNC4- Not a netCDF-4 file.
NC_ENOTVAR- Can't find this variable.
NC_ELATEDEF- This variable has already been the subject of a nc_enddef call. In
netCDF-4 files nc_enddef will be called automatically for any data
read or write. Once enddef has been called, it is impossible to set
the fletcher32 for a variable.
NC_ENOTINDEFINE- Not in define mode. This is returned for netCDF classic or 64-bit
offset files, or for netCDF-4 files, when they were been created with
NC_STRICT_NC3 flag. (see nc_create).
NC_EPERM- Attempt to create object in read-only file.
Example
