* Umeyama has now similar performance for RowMajor and ColMajor layouts.

* Fixed a bug in umeyama for fixed size matrices.
* Fixed the umeyama unit test for fixed size matrices.
* Added XprHelper::ei_plain_matrix_type_row_major.

1 files changed, 13 insertions, 0 deletions

diff --git a/Eigen/src/Core/util/XprHelper.h b/Eigen/src/Core/util/XprHelper.h
index f1cf93081..7b139b0c1 100644
--- a/Eigen/src/Core/util/XprHelper.h
+++ b/Eigen/src/Core/util/XprHelper.h
@@ -153,6 +153,19 @@ template<typename T> struct ei_plain_matrix_type_column_major
           > type;
 };
 
+/* ei_plain_matrix_type_row_major : same as ei_plain_matrix_type but guaranteed to be row-major
+ */
+template<typename T> struct ei_plain_matrix_type_row_major
+{
+  typedef Matrix<typename ei_traits<T>::Scalar,
+                ei_traits<T>::RowsAtCompileTime,
+                ei_traits<T>::ColsAtCompileTime,
+                AutoAlign | RowMajor,
+                ei_traits<T>::MaxRowsAtCompileTime,
+                ei_traits<T>::MaxColsAtCompileTime
+          > type;
+};
+
 template<typename T> struct ei_must_nest_by_value { enum { ret = false }; };
 template<typename T> struct ei_must_nest_by_value<NestByValue<T> > { enum { ret = true }; };