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86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Programmer: Quincey Koziol
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* Saturday, April 17, 2004
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*
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* Purpose: Create a dataset with a null dataspace and an attribute
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* with a null dataspace.
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* This program is used to create the test file `tnullspace.h5' which
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* has dataspaces stored in the newer (version 2) style in the object headers.
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* To build the test file, this program MUST be compiled and linked with
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* the hdf5-1.7+ series of libraries and the generated test file must be
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* put into the 'test' directory in the 1.6.x branch of the library.
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*/
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#include "h5test.h"
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#define NULLFILE "tnullspace.h5"
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#define NULLDATASET "null_dataset"
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#define NULLATTR "null_attribute"
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int
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main(void)
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{
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hid_t fid; /* File ID */
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hid_t gid; /* Group ID */
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hid_t sid; /* Dataspace ID */
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hid_t did; /* Dataset ID */
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hid_t attr; /* Attribute ID */
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herr_t H5_ATTR_NDEBUG_UNUSED ret; /* Generic return value */
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/* Create the file */
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fid = H5Fcreate(NULLFILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
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HDassert(fid > 0);
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sid = H5Screate(H5S_NULL);
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HDassert(sid > 0);
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/* Create dataset */
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did = H5Dcreate2(fid, NULLDATASET, H5T_NATIVE_UINT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
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HDassert(did > 0);
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/* Close the dataset */
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ret = H5Dclose(did);
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HDassert(ret >= 0);
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/* Open the root group */
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gid = H5Gopen2(fid, "/", H5P_DEFAULT);
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HDassert(gid > 0);
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/* Create an attribute for the group */
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attr = H5Acreate2(gid, NULLATTR, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT);
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HDassert(attr > 0);
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/* Close attribute */
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ret = H5Aclose(attr);
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HDassert(ret >= 0);
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/* Close the group */
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ret = H5Gclose(gid);
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HDassert(ret >= 0);
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/* Close the dataspace */
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ret = H5Sclose(sid);
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HDassert(ret >= 0);
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/* Close the file */
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ret = H5Fclose(fid);
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HDassert(ret >= 0);
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return EXIT_SUCCESS;
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}
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