From c851044eae0b0c4be639f6b4fd09825c8ed64d16 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Wed, 7 Jul 2010 10:52:59 +0200
Subject: [PATCH] fix row cwise-prod column in coeff based products... I really
 don't know why this worked so far...

---
 Eigen/src/Core/products/CoeffBasedProduct.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Eigen/src/Core/products/CoeffBasedProduct.h b/Eigen/src/Core/products/CoeffBasedProduct.h
index a17ce901b..1474bc1bb 100644
--- a/Eigen/src/Core/products/CoeffBasedProduct.h
+++ b/Eigen/src/Core/products/CoeffBasedProduct.h
@@ -318,7 +318,7 @@ struct ei_product_coeff_vectorized_dyn_selector
   typedef typename Lhs::Index Index;
   EIGEN_STRONG_INLINE static void run(Index row, Index col, const Lhs& lhs, const Rhs& rhs, typename Lhs::Scalar &res)
   {
-    res = lhs.row(row).cwiseProduct(rhs.col(col)).sum();
+    res = lhs.row(row).transpose().cwiseProduct(rhs.col(col)).sum();
   }
 };
 
@@ -330,7 +330,7 @@ struct ei_product_coeff_vectorized_dyn_selector<Lhs,Rhs,1,RhsCols>
   typedef typename Lhs::Index Index;
   EIGEN_STRONG_INLINE static void run(Index /*row*/, Index col, const Lhs& lhs, const Rhs& rhs, typename Lhs::Scalar &res)
   {
-    res = lhs.cwiseProduct(rhs.col(col)).sum();
+    res = lhs.transpose().cwiseProduct(rhs.col(col)).sum();
   }
 };
 
@@ -340,7 +340,7 @@ struct ei_product_coeff_vectorized_dyn_selector<Lhs,Rhs,LhsRows,1>
   typedef typename Lhs::Index Index;
   EIGEN_STRONG_INLINE static void run(Index row, Index /*col*/, const Lhs& lhs, const Rhs& rhs, typename Lhs::Scalar &res)
   {
-    res = lhs.row(row).cwiseProduct(rhs).sum();
+    res = lhs.row(row).transpose().cwiseProduct(rhs).sum();
   }
 };
 
@@ -350,7 +350,7 @@ struct ei_product_coeff_vectorized_dyn_selector<Lhs,Rhs,1,1>
   typedef typename Lhs::Index Index;
   EIGEN_STRONG_INLINE static void run(Index /*row*/, Index /*col*/, const Lhs& lhs, const Rhs& rhs, typename Lhs::Scalar &res)
   {
-    res = lhs.cwiseProduct(rhs).sum();
+    res = lhs.transpose().cwiseProduct(rhs).sum();
   }
 };