```// @HEADER
// ***********************************************************************
//
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
//
//
// ***********************************************************************

// Define serial dense vectors
// This code should be run with at least two processes

#include "Epetra_ConfigDefs.h"
#ifdef HAVE_MPI
#include "mpi.h"
#include "Epetra_MpiComm.h"
#else
#include "Epetra_SerialComm.h"
#endif
#include "Epetra_Map.h"
#include "Epetra_SerialDenseVector.h"

int main(int argc, char *argv[])
{

#ifdef HAVE_MPI
MPI_Init(&argc, &argv);
Epetra_MpiComm Comm(MPI_COMM_WORLD);
#else
Epetra_SerialComm Comm;
#endif

// Total number of elements in vectors
int NumRows = 5;

Epetra_SerialDenseVector x;

// shape this object
x.Size( NumRows );

// set the elements of the vector
for( int i=0 ; i<NumRows ; ++i )  x[i] = 1.0*i;
// NOTE: x[i] performs the same operations of x(i);
// however, the former checks for the bounds, while the latter
// do such only if Epetra is compiled with -DEPETRA_ARRAY_BOUNDS_CHECK

// now try to write out of memory
//int Length = x.Length();

//x[Length] = 12;

cout << x;

#ifdef HAVE_MPI
MPI_Finalize();
#endif

return(0);

} /* main */

#else

#include <stdlib.h>
#include <stdio.h>

int main(int argc, char *argv[])
{