From 5342d9cf0702f8ba79193a3e64128a1567e3700b Mon Sep 17 00:00:00 2001
From: deal <deal@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Tue, 31 Aug 2004 22:43:39 +0000
Subject: [PATCH] Unnamed temporary variables can't be bound to non-const
 references.

git-svn-id: https://svn.dealii.org/trunk@9601 0785d39b-7218-0410-832d-ea1e28bc413d
---
 .../deal.II/include/multigrid/mg_dof_tools.h  |  2 +-
 .../deal.II/source/multigrid/mg_dof_tools.cc  | 20 +++++++++----------
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/deal.II/deal.II/include/multigrid/mg_dof_tools.h b/deal.II/deal.II/include/multigrid/mg_dof_tools.h
index 5b1271df7c..bdfce7388e 100644
--- a/deal.II/deal.II/include/multigrid/mg_dof_tools.h
+++ b/deal.II/deal.II/include/multigrid/mg_dof_tools.h
@@ -217,7 +217,7 @@ class MGTools
 		     MGLevelObject<Vector<number> > &v,
 		     const std::vector<bool> &selected,
 		     const std::vector<unsigned int> &target_component,
-		     std::vector<std::vector<unsigned int> >& cached_sizes
+		     const std::vector<std::vector<unsigned int> >& cached_sizes
 		     = std::vector<std::vector<unsigned int> >());
 };
 
diff --git a/deal.II/deal.II/source/multigrid/mg_dof_tools.cc b/deal.II/deal.II/source/multigrid/mg_dof_tools.cc
index 268613979e..c0997f0025 100644
--- a/deal.II/deal.II/source/multigrid/mg_dof_tools.cc
+++ b/deal.II/deal.II/source/multigrid/mg_dof_tools.cc
@@ -464,7 +464,7 @@ MGTools::reinit_vector (const MGDoFHandler<dim> &mg_dof,
                         MGLevelObject<Vector<number> > &v,
                         const std::vector<bool> &selected,
 			const std::vector<unsigned int> &target_component,
-			std::vector<std::vector<unsigned int> >& ndofs)
+			const std::vector<std::vector<unsigned int> >& cached_dofs)
 {
   Assert (selected.size() == target_component.size(),
 	  ExcDimensionMismatch(selected.size(), target_component.size()));
@@ -482,19 +482,19 @@ MGTools::reinit_vector (const MGDoFHandler<dim> &mg_dof,
   while (!selected[selected_block])
     ++selected_block;
 
-  if (ndofs.size() == 0)
-    {
-      std::vector<std::vector<unsigned int> >
-	new_dofs(mg_dof.get_tria().n_levels(),
-		 std::vector<unsigned int>(target_component.size()));
-      std::swap(ndofs, new_dofs);
-      count_dofs_per_component (mg_dof, ndofs, target_component);
-    }
+  std::vector<std::vector<unsigned int> >
+    n_dofs(mg_dof.get_tria().n_levels(),
+	   std::vector<unsigned int>(target_component.size()));
+
+  if (cached_dofs.size() == 0)
+    count_dofs_per_component (mg_dof, n_dofs, target_component);
+  else
+    n_dofs = cached_dofs;
   
   for (unsigned int level=v.get_minlevel();
        level<=v.get_maxlevel();++level)
     {
-      v[level].reinit(ndofs[level][selected_block]);
+      v[level].reinit(n_dofs[level][selected_block]);
     }
 }
 
-- 
2.39.5