Add an assertion.

diff --git a/include/deal.II/lac/trilinos_tpetra_vector.h b/include/deal.II/lac/trilinos_tpetra_vector.h
index c5d134e2b5d8f000778f752cb24af8972bdbdf53..67bb9c42ee7dc57a4e4b5759ddc011ddaf1410fc 100644 (file)
--- a/include/deal.II/lac/trilinos_tpetra_vector.h
+++ b/include/deal.II/lac/trilinos_tpetra_vector.h
@@ -1003,6 +1003,10 @@ namespace LinearAlgebra
                                      const size_type *indices,
                                      const Number    *values)
     {
+      // if we have ghost values, do not allow
+      // writing to this vector at all.
+      Assert(!has_ghost_elements(), ExcGhostsPresent());
+
       // First create an alias for the type of a view into our vectors.
       // The actual type is declared through several re-directions in
       // Tpetra, so instead of spelling it out, we get it via decltype: