From caa9ced8539a827c415ce3ea0362183d4dcdebc7 Mon Sep 17 00:00:00 2001
From: Hauke Heibel <hauke.heibel@gmail.com>
Date: Tue, 12 Jan 2010 09:41:06 +0100
Subject: [PATCH] Add a real plain matrix type to the ei_nested declaration
 used in product return type.

---
 Eigen/src/Core/Product.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Eigen/src/Core/Product.h b/Eigen/src/Core/Product.h
index 15f44de89..9e1875941 100644
--- a/Eigen/src/Core/Product.h
+++ b/Eigen/src/Core/Product.h
@@ -135,8 +135,8 @@ struct ProductReturnType
 template<typename Lhs, typename Rhs>
 struct ProductReturnType<Lhs,Rhs,UnrolledProduct>
 {
-  typedef typename ei_nested<Lhs,Rhs::ColsAtCompileTime>::type LhsNested;
-  typedef typename ei_nested<Rhs,Lhs::RowsAtCompileTime>::type RhsNested;
+  typedef typename ei_nested<Lhs, Rhs::ColsAtCompileTime, ei_plain_matrix_type<Lhs> >::type LhsNested;
+  typedef typename ei_nested<Rhs, Lhs::RowsAtCompileTime, ei_plain_matrix_type<Rhs> >::type RhsNested;
   typedef GeneralProduct<LhsNested, RhsNested, UnrolledProduct> Type;
 };