Snap for 6212682 from 2f1faf52981f7b57efea6798da1ec5e464c5e49b to rvc-release
Change-Id: I73bce0879439c6432f5957f2a0ea285473ef37dd
diff --git a/Eigen/src/Core/Matrix.h b/Eigen/src/Core/Matrix.h
index 90c336d..42a107f 100644
--- a/Eigen/src/Core/Matrix.h
+++ b/Eigen/src/Core/Matrix.h
@@ -456,6 +456,55 @@
#undef EIGEN_MAKE_TYPEDEFS
#undef EIGEN_MAKE_FIXED_TYPEDEFS
+#if EIGEN_HAS_CXX11
+
+#define EIGEN_MAKE_TYPEDEFS(Size, SizeSuffix) \
+/** \ingroup matrixtypedefs */ \
+/** \brief \cpp11 */ \
+template <typename Type> \
+using Matrix##SizeSuffix = Matrix<Type, Size, Size>; \
+/** \ingroup matrixtypedefs */ \
+/** \brief \cpp11 */ \
+template <typename Type> \
+using Vector##SizeSuffix = Matrix<Type, Size, 1>; \
+/** \ingroup matrixtypedefs */ \
+/** \brief \cpp11 */ \
+template <typename Type> \
+using RowVector##SizeSuffix = Matrix<Type, 1, Size>;
+
+#define EIGEN_MAKE_FIXED_TYPEDEFS(Size) \
+/** \ingroup matrixtypedefs */ \
+/** \brief \cpp11 */ \
+template <typename Type> \
+using Matrix##Size##X = Matrix<Type, Size, Dynamic>; \
+/** \ingroup matrixtypedefs */ \
+/** \brief \cpp11 */ \
+template <typename Type> \
+using Matrix##X##Size = Matrix<Type, Dynamic, Size>;
+
+EIGEN_MAKE_TYPEDEFS(2, 2)
+EIGEN_MAKE_TYPEDEFS(3, 3)
+EIGEN_MAKE_TYPEDEFS(4, 4)
+EIGEN_MAKE_TYPEDEFS(Dynamic, X)
+EIGEN_MAKE_FIXED_TYPEDEFS(2)
+EIGEN_MAKE_FIXED_TYPEDEFS(3)
+EIGEN_MAKE_FIXED_TYPEDEFS(4)
+
+/** \ingroup matrixtypedefs
+ * \brief \cpp11 */
+template <typename Type, int Size>
+using Vector = Matrix<Type, Size, 1>;
+
+/** \ingroup matrixtypedefs
+ * \brief \cpp11 */
+template <typename Type, int Size>
+using RowVector = Matrix<Type, 1, Size>;
+
+#undef EIGEN_MAKE_TYPEDEFS
+#undef EIGEN_MAKE_FIXED_TYPEDEFS
+
+#endif // EIGEN_HAS_CXX11
+
} // end namespace Eigen
#endif // EIGEN_MATRIX_H
