add a conj_product functor and optimize dot products

1 files changed, 2 insertions, 2 deletions

diff --git a/Eigen/src/Core/Dot.h b/Eigen/src/Core/Dot.h
index 8eaa62185..9fc2fb60e 100644
--- a/Eigen/src/Core/Dot.h
+++ b/Eigen/src/Core/Dot.h
@@ -41,7 +41,7 @@ struct ei_dot_nocheck
 {
   static inline typename ei_traits<T>::Scalar run(const MatrixBase<T>& a, const MatrixBase<U>& b)
   {
-    return a.conjugate().cwiseProduct(b).sum();
+    return a.template binaryExpr<ei_scalar_conj_product_op<typename ei_traits<T>::Scalar> >(b).sum();
   }
 };
 
@@ -50,7 +50,7 @@ struct ei_dot_nocheck<T, U, true>
 {
   static inline typename ei_traits<T>::Scalar run(const MatrixBase<T>& a, const MatrixBase<U>& b)
   {
-    return a.adjoint().cwiseProduct(b).sum();
+    return a.transpose().template binaryExpr<ei_scalar_conj_product_op<typename ei_traits<T>::Scalar> >(b).sum();
   }
 };