/************************************************************

  This example shows how to create, open, and close a group.

  This file is intended for use with HDF5 Library version 1.8

 ************************************************************/

#include "hdf5.h"

#define FNAME "grps.h5"
#define NGROUPS 25
#define GNAME "/levelOneGroup"
#define NAME_LEN 16

herr_t obj_info_all(hid_t loc_id, const char *name, const H5L_info_t *info, void *op_data);

int main(void)
{
    hid_t file, group; 
	char gname[NAME_LEN];
	int i=0;
	
	/* create the 2nd file */
    file = H5Fcreate (FNAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
	group = H5Gcreate (file, GNAME, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
	H5Gclose (group);
	H5Fclose (file);	
	
	for (i=0; i<NGROUPS; i++) {
    	H5O_info_t object_info;
		
		hid_t fid = H5Fopen (FNAME, H5F_ACC_RDWR, H5P_DEFAULT);

		H5Literate(fid, H5_INDEX_NAME, H5_ITER_INC, NULL, obj_info_all, NULL);
		
		group = H5Gopen (file, GNAME, H5P_DEFAULT);
		H5Literate(group, H5_INDEX_NAME, H5_ITER_INC, NULL, obj_info_all, NULL);	

		memset(gname, 0, NAME_LEN);
		sprintf(gname, "group%d", i);
		
		hid_t gid = H5Gcreate (fid, gname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
		H5Literate(gid, H5_INDEX_NAME, H5_ITER_INC, NULL, obj_info_all, NULL);	

		H5Gclose (gid);
		H5Fclose (fid);
	}
}

herr_t obj_info_all(hid_t loc_id, const char *name, const H5L_info_t *info, void *op_data)
{
    herr_t retVal = 0;
    H5O_info_t object_info;


    retVal = H5Oget_info_by_name(loc_id, name, &object_info, H5P_DEFAULT);

    return retVal;
}