From e655b5a5c8c38258712ec9c2cd213c0d73f821cf Mon Sep 17 00:00:00 2001
From: heister <heister@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Mon, 27 Dec 2010 19:26:56 +0000
Subject: [PATCH] PETScWrappers::MPI::Vector::mean_value() is not implemented
 yet, warn about that fact.

git-svn-id: https://svn.dealii.org/trunk@23072 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/source/lac/petsc_vector_base.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/deal.II/source/lac/petsc_vector_base.cc b/deal.II/source/lac/petsc_vector_base.cc
index 3ada9aee1d..36049663f9 100644
--- a/deal.II/source/lac/petsc_vector_base.cc
+++ b/deal.II/source/lac/petsc_vector_base.cc
@@ -414,6 +414,11 @@ namespace PETScWrappers
   PetscScalar
   VectorBase::mean_value () const
   {
+#ifdef DEBUG
+    Assert(dynamic_cast<const PETScWrappers::MPI::Vector *>(this) != 0,
+    ExcMessage	("::mean_value() not implemented for MPI::Vector."));    
+#endif
+    
                                      // get a representation of the vector and
                                      // loop over all the elements
     PetscScalar *start_ptr;
-- 
2.39.5