From 45d1a4c0c512d78f9ced9be558651f5d2263bc6e Mon Sep 17 00:00:00 2001
From: Oliver Sander <sander@igpm.rwth-aachen.de>
Date: Sun, 1 May 2011 07:08:10 +0000
Subject: [PATCH] add a comment

[[Imported from SVN: r7227]]
---
 dune/gfe/harmonicenergystiffness.hh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dune/gfe/harmonicenergystiffness.hh b/dune/gfe/harmonicenergystiffness.hh
index 7a85534b..ae860ee0 100644
--- a/dune/gfe/harmonicenergystiffness.hh
+++ b/dune/gfe/harmonicenergystiffness.hh
@@ -33,6 +33,8 @@ public:
                const std::vector<TargetSpace>& localSolution) const;
 
 #ifndef HARMONIC_ENERGY_FD_GRADIENT
+    // The finite difference gradient method is in the base class.
+    // If the cpp macro is not set we overload it here.
     /** \brief Assemble the gradient of the energy functional on one element */
     virtual void assembleEmbeddedGradient(const Entity& element,
                                   const std::vector<TargetSpace>& solution,
-- 
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