From 1b5de5a37b47ef2738e5bdf4135777f00ac5967d Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 18 Feb 2014 13:30:16 +0100
Subject: Add evaluator for Ref

---
 Eigen/src/Core/CoreEvaluators.h | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

(limited to 'Eigen')

diff --git a/Eigen/src/Core/CoreEvaluators.h b/Eigen/src/Core/CoreEvaluators.h
index ef900e236..d02bac0a8 100644
--- a/Eigen/src/Core/CoreEvaluators.h
+++ b/Eigen/src/Core/CoreEvaluators.h
@@ -587,7 +587,7 @@ struct evaluator<MapBase<Derived, AccessorsType> >
   CoeffReturnType coeff(Index index) const 
   { 
     return coeff(RowsAtCompileTime == 1 ? 0 : index,
-		 RowsAtCompileTime == 1 ? index : 0);
+                 RowsAtCompileTime == 1 ? index : 0);
   }
 
   Scalar& coeffRef(Index row, Index col) 
@@ -598,7 +598,7 @@ struct evaluator<MapBase<Derived, AccessorsType> >
   Scalar& coeffRef(Index index) 
   { 
     return coeffRef(RowsAtCompileTime == 1 ? 0 : index,
-		    RowsAtCompileTime == 1 ? index : 0);
+                    RowsAtCompileTime == 1 ? index : 0);
   }
  
   template<int LoadMode> 
@@ -612,7 +612,7 @@ struct evaluator<MapBase<Derived, AccessorsType> >
   PacketReturnType packet(Index index) const 
   { 
     return packet<LoadMode>(RowsAtCompileTime == 1 ? 0 : index,
-			    RowsAtCompileTime == 1 ? index : 0);
+                            RowsAtCompileTime == 1 ? index : 0);
   }
   
   template<int StoreMode> 
@@ -626,8 +626,8 @@ struct evaluator<MapBase<Derived, AccessorsType> >
   void writePacket(Index index, const PacketScalar& x) 
   { 
     return writePacket<StoreMode>(RowsAtCompileTime == 1 ? 0 : index,
-				  RowsAtCompileTime == 1 ? index : 0,
-				  x);
+                                  RowsAtCompileTime == 1 ? index : 0,
+                                  x);
   }
  
 protected:
@@ -647,6 +647,19 @@ struct evaluator<Map<PlainObjectType, MapOptions, StrideType> >
   { }
 };
 
+// -------------------- Ref --------------------
+
+template<typename PlainObjectType, int RefOptions, typename StrideType> 
+struct evaluator<Ref<PlainObjectType, RefOptions, StrideType> >
+  : public evaluator<MapBase<Ref<PlainObjectType, RefOptions, StrideType> > >
+{
+  typedef Ref<PlainObjectType, RefOptions, StrideType> XprType;
+
+  evaluator(const XprType& map) 
+    : evaluator<MapBase<XprType> >(map) 
+  { }
+};
+
 // -------------------- Block --------------------
 
 template<typename ArgType, int BlockRows, int BlockCols, bool InnerPanel,
-- 
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