1 files changed, 113 insertions, 0 deletions
diff --git a/test/set_extend.c b/test/set_extend.c
new file mode 100644
index 0000000..9cb2cb6
--- /dev/null
+++ b/test/set_extend.c
@@ -0,0 +1,113 @@
+
+
+#include "hdf5.h"
+
+/*-------------------------------------------------------------------------
+ *
+ * Tests the function H5Dset_extend. In the current version of the library 
+ * the dataset MUST be chunked.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#define DATASETNAME "ShrinkArray" 
+#define RANK         2
+
+
+int main( void )
+{
+ 
+  hid_t   file_id;
+  hid_t   dataset_id;
+  hid_t   space_id;  
+  hid_t   plist_id;
+  hsize_t dims[2] = { 3, 3};
+  hsize_t dims_new[2] = { 2, 2};
+  hsize_t dims_chunk[2] = { 3, 3};
+  hsize_t dims_out[2];
+  hsize_t maxdims[1] = { H5S_UNLIMITED };
+  int     data1[3][3] = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} }; 
+  int     buf[2][2];
+  herr_t  status; 
+  int     i, j;
+  
+  /* Create a new file using default properties. */
+  file_id = H5Fcreate( "set_extend.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT );
+
+  /* Create the data space with unlimited dimensions. */
+  space_id = H5Screate_simple( RANK, dims, maxdims ); 
+
+  /* Modify dataset creation properties, i.e. enable chunking. */
+  plist_id = H5Pcreate (H5P_DATASET_CREATE);
+  status = H5Pset_chunk( plist_id, RANK, dims_chunk);
+
+  /* Create a new dataset within the file using cparms creation properties. */
+  dataset_id = H5Dcreate( file_id , DATASETNAME, H5T_NATIVE_INT, space_id, plist_id );
+
+  /* Write the data. */
+  status = H5Dwrite( dataset_id , H5T_NATIVE_INT, space_id, H5S_ALL, H5P_DEFAULT, data1 );
+
+/*-------------------------------------------------------------------------
+ * Set new dimensions for the array
+ *-------------------------------------------------------------------------
+ */
+  
+  /* Set new dimensions for the array. */
+  status = H5Dset_extend( dataset_id , dims_new );
+
+   /* Get the space. */
+  space_id = H5Dget_space( dataset_id );
+
+  /* Get dimensions. */
+  status = H5Sget_simple_extent_dims( space_id, dims_out, NULL);
+
+  for( i = 0; i < 2; i++ ) 
+  {
+   if (  dims_out[i] != dims_new[i] ) 
+    goto out;
+  }
+
+
+/*-------------------------------------------------------------------------
+ * Read
+ *-------------------------------------------------------------------------
+ */
+ 
+  /* Read the new dataset. */
+  status = H5Dread( dataset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf );
+
+  /* Compare the read array with the original array */
+  for( i = 0; i < dims_out[0]; i++ ) 
+   for( j = 0; j < dims_out[1]; j++ )
+   {
+    if (  buf[i][j] != data1[i][j] ) {
+     goto out;
+    }
+   }
+
+
+    
+/*-------------------------------------------------------------------------
+ * end
+ *-------------------------------------------------------------------------
+ */
+ 
+ /* Close/release resources. */
+ H5Dclose( dataset_id );
+ H5Sclose( space_id );
+ H5Pclose( plist_id  );
+ H5Fclose( file_id );
+ printf("%s \n", "H5Dset_extend test PASSED" );
+
+ return 0;
+
+out:
+ H5Dclose( dataset_id );
+ H5Sclose( space_id );
+ H5Pclose( plist_id  );
+ H5Fclose( file_id );
+ printf("%s \n", "H5Dset_extend FAILED" );
+ return 1;
+
+}
+