[svn-r24336] Bring revisions #24118 - #24200 from trunk.

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diff --git a/c++/examples/h5tutr_rdwt.cpp b/c++/examples/h5tutr_rdwt.cpp
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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 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://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have	     *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ *  This example illustrates how to write to and read from an existing
+ *  dataset. It is used in the HDF5 Tutorial.
+ */
+
+#include <iostream>
+#include <string>
+
+#include "H5Cpp.h"
+
+#ifndef H5_NO_NAMESPACE
+    using namespace H5;
+#endif
+
+const H5std_string	FILE_NAME( "dset.h5" );
+const H5std_string	DATASET_NAME( "dset" );
+const int 	DIM0 = 4;	               // dataset dimensions
+const int 	DIM1 = 6;
+
+int main (void)
+{
+    
+    // Data initialization.
+     
+    int i, j;
+    int data[DIM0][DIM1];	    // buffer for data to write
+
+    for (j = 0; j < DIM0; j++)
+	for (i = 0; i < DIM1; i++)
+	 data[j][i] = i * 6 + j + 1;
+
+    // Try block to detect exceptions raised by any of the calls inside it
+    try
+    {
+	// Turn off the auto-printing when failure occurs so that we can
+	// handle the errors appropriately
+	Exception::dontPrint();
+
+	// Open an existing file and dataset.
+	H5File file( FILE_NAME, H5F_ACC_RDWR );
+	DataSet dataset = file.openDataSet( DATASET_NAME );
+
+	// Write the data to the dataset using default memory space, file
+	// space, and transfer properties.
+	dataset.write( data, PredType::NATIVE_INT );
+
+    }  // end of try block
+
+    // catch failure caused by the H5File operations
+    catch( FileIException error )
+    {
+	error.printError();
+	return -1;
+    }
+
+    // catch failure caused by the DataSet operations
+    catch( DataSetIException error )
+    {
+	error.printError();
+	return -1;
+    }
+
+    return 0;  // successfully terminated
+}