From dcb395c6f5ae420edf83d0640c3f1d4f3493f3d6 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Mon, 15 Feb 2010 11:09:33 +0100
Subject: [PATCH] explicitly disable the use of evalTo for dense object

---
 Eigen/src/Core/DenseBase.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Eigen/src/Core/DenseBase.h b/Eigen/src/Core/DenseBase.h
index 700c11929..21d792f49 100644
--- a/Eigen/src/Core/DenseBase.h
+++ b/Eigen/src/Core/DenseBase.h
@@ -486,6 +486,12 @@ template<typename Derived> class DenseBase
     #include EIGEN_DENSEBASE_PLUGIN
     #endif
 
+    // disable the use of evalTo for dense objects with a nice compilation error
+    template<typename Dest> inline void evalTo(Dest& dst) const
+    {
+      EIGEN_STATIC_ASSERT((ei_is_same_type<Dest,void>::ret),THE_EVAL_EVALTO_FUNCTION_SHOULD_NEVER_BE_CALLED_FOR_DENSE_OBJECTS);
+    }
+
   protected:
     /** Default constructor. Do nothing. */
     DenseBase()