--- /dev/null
+// ---------------------------------------------------------------------
+// $Id$
+//
+// Copyright (C) 2004 - 2013 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, 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 License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+
+
+
+// allow operator= for BlockVectors if dest is same size or empty
+
+#include "../tests.h"
+#include <deal.II/lac/generic_linear_algebra.h>
+#include <deal.II/base/index_set.h>
+#include <deal.II/lac/constraint_matrix.h>
+#include <fstream>
+#include <iostream>
+#include <iomanip>
+#include <vector>
+
+#include "gla.h"
+
+template <class LA>
+void test ()
+{
+ unsigned int myid = Utilities::MPI::this_mpi_process (MPI_COMM_WORLD);
+ unsigned int numproc = Utilities::MPI::n_mpi_processes (MPI_COMM_WORLD);
+
+ if (myid==0)
+ deallog << "numproc=" << numproc << std::endl;
+
+ IndexSet block1(10);
+ if (myid==0)
+ block1.add_range(0,7);
+ if (myid==1)
+ block1.add_range(7,10);
+
+ IndexSet block2(numproc);
+ block2.add_index(myid);
+
+ std::vector<IndexSet> partitioning;
+ partitioning.push_back(block1);
+ typename LA::MPI::BlockVector v_1(partitioning, MPI_COMM_WORLD);
+ partitioning.push_back(block2);
+
+ std::vector<IndexSet> relevant = partitioning;
+ relevant[0].add_index(0);
+ relevant[1].add_range(0,numproc);
+
+ typename LA::MPI::BlockVector v_2(partitioning, MPI_COMM_WORLD);
+
+ {
+ typename LA::MPI::BlockVector x(partitioning, MPI_COMM_WORLD);
+ x=v_2;
+ }
+ {
+ typename LA::MPI::BlockVector x;
+ x=v_2;
+ }
+ {
+ deal_II_exceptions::disable_abort_on_exception();
+ try
+ {
+ typename LA::MPI::BlockVector x=v_1;
+ x=v_2; // error
+ }
+ catch (const ExceptionBase &e)
+ {
+ deallog << "Exception: " << e.get_exc_name() << std::endl;
+ }
+ }
+
+ // done
+ if (myid==0)
+ deallog << "OK" << std::endl;
+}
+
+
+
+int main (int argc, char **argv)
+{
+ Utilities::MPI::MPI_InitFinalize mpi_initialization(argc, argv, 1);
+ MPILogInitAll log(__FILE__);
+ {
+ deallog.push("PETSc");
+ test<LA_PETSc>();
+ deallog.pop();
+ deallog.push("Trilinos");
+ test<LA_Trilinos>();
+ deallog.pop();
+ }
+
+}