From 8885d56928e45b3beda91e529845e369a17d0a91 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 9 Jul 2009 23:59:18 +0200
Subject: commit woking versions of triangular solvers naturally handling
 conjuagted expression. still have to bench whether it is faster (runtime and
 compile time) to directly call the cache friendly functions, whence all the
 commented piece of code...

---
 Eigen/src/Core/Product.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'Eigen/src/Core/Product.h')

diff --git a/Eigen/src/Core/Product.h b/Eigen/src/Core/Product.h
index 44fde3dcf..8bd6af1b8 100644
--- a/Eigen/src/Core/Product.h
+++ b/Eigen/src/Core/Product.h
@@ -129,6 +129,19 @@ template<typename Scalar, typename NestedXpr> struct ei_product_factor_traits<Cw
   { return - Base::extractScalarFactor(x._expression()); }
 };
 
+// pop opposite
+template<typename NestedXpr> struct ei_product_factor_traits<NestByValue<NestedXpr> >
+ : ei_product_factor_traits<NestedXpr>
+{
+  typedef typename NestedXpr::Scalar Scalar;
+  typedef ei_product_factor_traits<NestedXpr> Base;
+  typedef NestByValue<NestedXpr> XprType;
+  typedef typename Base::ActualXprType ActualXprType;
+  static inline const ActualXprType& extract(const XprType& x) { return Base::extract(static_cast<const NestedXpr&>(x)); }
+  static inline Scalar extractScalarFactor(const XprType& x)
+  { return Base::extractScalarFactor(static_cast<const NestedXpr&>(x)); }
+};
+
 /*  Helper class to determine the type of the product, can be either:
  *    - NormalProduct
  *    - CacheFriendlyProduct
-- 
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