mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-12-27 08:01:04 +08:00
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
|
|
* 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 example illustrates how to create an attribute attached to a
|
|
* dataset. It is used in the HDF5 Tutorial.
|
|
*/
|
|
|
|
#include "hdf5.h"
|
|
#define FILE "dset.h5"
|
|
|
|
int
|
|
main()
|
|
{
|
|
|
|
hid_t file_id, dataset_id, attribute_id, dataspace_id; /* identifiers */
|
|
hsize_t dims;
|
|
int attr_data[2];
|
|
herr_t status;
|
|
|
|
/* Initialize the attribute data. */
|
|
attr_data[0] = 100;
|
|
attr_data[1] = 200;
|
|
|
|
/* Open an existing file. */
|
|
file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
|
|
|
|
/* Open an existing dataset. */
|
|
dataset_id = H5Dopen2(file_id, "/dset", H5P_DEFAULT);
|
|
|
|
/* Create the data space for the attribute. */
|
|
dims = 2;
|
|
dataspace_id = H5Screate_simple(1, &dims, NULL);
|
|
|
|
/* Create a dataset attribute. */
|
|
attribute_id = H5Acreate2(dataset_id, "Units", H5T_STD_I32BE, dataspace_id, H5P_DEFAULT, H5P_DEFAULT);
|
|
|
|
/* Write the attribute data. */
|
|
status = H5Awrite(attribute_id, H5T_NATIVE_INT, attr_data);
|
|
|
|
/* Close the attribute. */
|
|
status = H5Aclose(attribute_id);
|
|
|
|
/* Close the dataspace. */
|
|
status = H5Sclose(dataspace_id);
|
|
|
|
/* Close to the dataset. */
|
|
status = H5Dclose(dataset_id);
|
|
|
|
/* Close the file. */
|
|
status = H5Fclose(file_id);
|
|
}
|