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

  This example shows how to iterate over group members using
  H5Giterate.

  This file is intended for use with HDF5 Library version 1.6

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

#include "hdf5.h"
#include <stdio.h>

#define FILENAME "h5ex_g_iterate.h5"

/*
 * Operator function to be called by H5Giterate.
 */
herr_t op_func(hid_t loc_id, const char *name, void *operator_data);

int
main(void)
{
    hid_t  file; /* Handle */
    herr_t status;

    /*
     * Open file.
     */
    file = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);

    /*
     * Begin iteration.
     */
    printf("Objects in root group:\n");
    status = H5Giterate(file, "/", NULL, op_func, NULL);

    /*
     * Close and release resources.
     */
    status = H5Fclose(file);

    return 0;
}

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

  Operator function.  Prints the name and type of the object
  being examined.

 ************************************************************/
herr_t
op_func(hid_t loc_id, const char *name, void *operator_data)
{
    herr_t     status;
    H5G_stat_t statbuf;

    /*
     * Get type of the object and display its name and type.
     * The name of the object is passed to this function by
     * the Library.
     */
    status = H5Gget_objinfo(loc_id, name, 0, &statbuf);
    switch (statbuf.type) {
        case H5G_GROUP:
            printf("  Group: %s\n", name);
            break;
        case H5G_DATASET:
            printf("  Dataset: %s\n", name);
            break;
        case H5G_TYPE:
            printf("  Datatype: %s\n", name);
            break;
        default:
            printf("  Unknown: %s\n", name);
    }

    return 0;
}
