hdf5_ep

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

 * Copyright by The HDF Group.                                               *

 * Copyright by the Board of Trustees of the University of Illinois.         *

 * All rights reserved.                                                      *

 *                                                                           *

 * This file is part of HDF5.  The full HDF5 copyright notice, including     *

 * terms governing use, modification, and redistribution, is contained in    *

 * the COPYING file, which can be found at the root of the source code       *

 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *

 * If you do not have access to either file, you may request a copy from     *

 * help@hdfgroup.org.                                                        *

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

​

/*

 *  This program illustrates the usage of the H5A Interface functions.

 *  It creates and writes a dataset, and then creates and writes array,

 *  scalar, and string attributes of the dataset.

 *  Program reopens the file, attaches to the scalar attribute using

 *  attribute name and reads and displays its value. Then index of the

 *  third attribute is used to read and display attribute values.

 *  The H5Aiterate function is used to iterate through the dataset attributes,

 *  and display their names. The function is also reads and displays the values

 *  of the array attribute.

 */

​

#include <stdlib.h>

​

#include "hdf5.h"

​

#define H5FILE_NAME "Attributes.h5"

​

#define RANK  1   /* Rank and size of the dataset  */

#define SIZE  7

​

#define ARANK  2   /* Rank and dimension sizes of the first dataset attribute */

#define ADIM1  2

#define ADIM2  3

#define ANAME  "Float attribute"      /* Name of the array attribute */

#define ANAMES "Character attribute" /* Name of the string attribute */

​

static herr_t attr_info(hid_t loc_id, const char *name, const H5A_info_t *ainfo, void *opdata);

                                     /* Operator function */

​

int

main (void)

{

​

   hid_t   file, dataset;       /* File and dataset identifiers */

​

   hid_t   fid;                 /* Dataspace identifier */

   hid_t   attr1, attr2, attr3; /* Attribute identifiers */