From a4f378929c3a5d0c5a8233526d4c0ce6260d8403 Mon Sep 17 00:00:00 2001
From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Fri, 31 Dec 2010 13:25:01 +0000
Subject: [PATCH] Correct condition in an Assert.

git-svn-id: https://svn.dealii.org/trunk@23092 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/source/lac/petsc_vector_base.cc | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/deal.II/source/lac/petsc_vector_base.cc b/deal.II/source/lac/petsc_vector_base.cc
index 36049663f9..68cc7b28ee 100644
--- a/deal.II/source/lac/petsc_vector_base.cc
+++ b/deal.II/source/lac/petsc_vector_base.cc
@@ -414,10 +414,8 @@ 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
+    Assert(dynamic_cast<const PETScWrappers::MPI::Vector *>(this) == 0,
+	   ExcMessage	("::mean_value() not implemented for MPI::Vector."));
     
                                      // get a representation of the vector and
                                      // loop over all the elements
-- 
2.39.5