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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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 files COPYING and Copyright.html. COPYING can be found at the root *
+ * of the source code distribution tree; Copyright.html can be found at the *
+ * root level of an installed copy of the electronic HDF5 document set and *
+ * is linked from the top-level documents page. It can also be found at *
+ * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
+ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Programmer: Quincey Koziol <koziol@ncsa.uiuc.edu>
+ * Saturday, April 17, 2004
+ *
+ * Purpose: Create a dataset with a null dataspace and an attribute
+ * with a null dataspace.
+ * This program is used to create the test file `tnullspace.h5' which
+ * has dataspaces stored in the newer (version 2) style in the object headers.
+ * To build the test file, this program MUST be compiled and linked with
+ * the hdf5-1.7+ series of libraries and the generated test file must be
+ * put into the 'test' directory in the 1.6.x branch of the library.
+ */
+
+#include "hdf5.h"
+#include <assert.h>
+
+#define NULLFILE "tnullspace.h5"
+#define NULLDATASET "null_dataset"
+#define NULLATTR "null_attribute"
+
+int
+main(void)
+{
+ hid_t fid; /* File ID */
+ hid_t gid; /* Group ID */
+ hid_t sid; /* Dataspace ID */
+ hid_t did; /* Dataset ID */
+ hid_t attr; /* Attribute ID */
+ herr_t ret; /* Generic return value */
+
+ /* Create the file */
+ fid = H5Fcreate(NULLFILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ assert(fid>0);
+
+ sid = H5Screate(H5S_NULL);
+ assert(sid>0);
+
+ /* Create dataset */
+ did = H5Dcreate(fid, NULLDATASET, H5T_NATIVE_UINT, sid, H5P_DEFAULT);
+ assert(did>0);
+
+ /* Close the dataset */
+ ret = H5Dclose(did);
+ assert(ret>=0);
+
+ /* Open the root group */
+ gid = H5Gopen(fid,"/");
+ assert(gid>0);
+
+ /* Create an attribute for the group */
+ attr=H5Acreate(gid,NULLATTR,H5T_NATIVE_INT,sid,H5P_DEFAULT);
+ assert(attr>0);
+
+ /* Close attribute */
+ ret=H5Aclose(attr);
+ assert(ret>=0);
+
+ /* Close the group */
+ ret = H5Gclose(gid);
+ assert(ret>=0);
+
+ /* Close the dataspace */
+ ret = H5Sclose(sid);
+ assert(ret>=0);
+
+ /* Close the file */
+ ret = H5Fclose(fid);
+ assert(ret>=0);
+
+ return 0;
+}
+
+