From cc87716218bd084b85c98bf8fd3f61f07337f016 Mon Sep 17 00:00:00 2001
From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Sat, 20 Oct 2012 02:32:21 +0000
Subject: [PATCH] Produce an error for an operation that doesn't make any sense
 in 1d.

git-svn-id: https://svn.dealii.org/trunk@27150 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/source/dofs/dof_renumbering.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/deal.II/source/dofs/dof_renumbering.cc b/deal.II/source/dofs/dof_renumbering.cc
index 1029d8d845..302f2d4cd6 100644
--- a/deal.II/source/dofs/dof_renumbering.cc
+++ b/deal.II/source/dofs/dof_renumbering.cc
@@ -2047,6 +2047,8 @@ namespace DoFRenumbering
         bool operator () (const DHCellIterator& c1,
                           const DHCellIterator& c2) const
           {
+	    Assert (dim >= 2,
+		    ExcMessage ("This operation only makes sense for dim>=2."));
 
             const Point<dim> v1 = c1->center() - center;
             const Point<dim> v2 = c2->center() - center;
-- 
2.39.5