3.7 Find a Group's Parent: nc_inq_grp_parent
Given ncid, find the ncid of the parent group.
When used with the root group, this function returns the NC_ENOGRP
error (since the root group has no parent.)
Usage
int nc_inq_grp_parent(int ncid, int *parent_ncid);
ncid- The group id.
parent_ncid- Pointer to an int. The ncid of the group will be copied there.
-
Errors
NC_NOERR- No error.
NC_EBADID- Bad group id.
NC_ENOGRP- No parent group found (i.e. this is the root group).
NC_ENOTNC4- Attempting a netCDF-4 operation on a netCDF-3 file. NetCDF-4
operations can only be performed on files defined with a create mode
which includes flag HDF5. (see nc_open).
NC_ESTRICTNC3- This file was created with the strict netcdf-3 flag, therefore
netcdf-4 operations are not allowed. (see nc_open).
NC_EHDFERR- An error was reported by the HDF5 layer.
Example
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_grp(ncid, HENRY_VII, &henry_vii_id)) ERR;
if (nc_inq_grp_parent(henry_vii_id, &parent_ncid)) ERR;
if (parent_ncid != ncid) ERR;
if (nc_close(ncid)) ERR;
