From 2c0ef43b48074d03c2737459e1771e41ff061362 Mon Sep 17 00:00:00 2001
From: William Talbot <william.talbot97@gmail.com>
Date: Mon, 4 Apr 2022 16:50:09 +0000
Subject: [PATCH] Added Scaling function overload for vector rvalue reference

---
 Eigen/src/Core/DiagonalMatrix.h | 4 ++++
 Eigen/src/Geometry/Scaling.h    | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/Eigen/src/Core/DiagonalMatrix.h b/Eigen/src/Core/DiagonalMatrix.h
index 45375d5c8..06cfdc170 100644
--- a/Eigen/src/Core/DiagonalMatrix.h
+++ b/Eigen/src/Core/DiagonalMatrix.h
@@ -200,6 +200,10 @@ class DiagonalMatrix
     explicit EIGEN_STRONG_INLINE DiagonalMatrix(const std::initializer_list<std::initializer_list<Scalar>>& list)
       : m_diagonal(list) {}
 
+    /** \brief Constructs a DiagonalMatrix from an r-value diagonal vector type */
+    EIGEN_DEVICE_FUNC
+    explicit inline DiagonalMatrix(DiagonalVectorType&& diag) : m_diagonal(std::move(diag)) {}
+
     /** Copy constructor. */
     template<typename OtherDerived>
     EIGEN_DEVICE_FUNC
diff --git a/Eigen/src/Geometry/Scaling.h b/Eigen/src/Geometry/Scaling.h
index 48a192ed0..8bcdce634 100644
--- a/Eigen/src/Geometry/Scaling.h
+++ b/Eigen/src/Geometry/Scaling.h
@@ -162,6 +162,11 @@ template<typename Derived>
 inline const DiagonalWrapper<const Derived> Scaling(const MatrixBase<Derived>& coeffs)
 { return coeffs.asDiagonal(); }
 
+/** Constructs an axis aligned scaling expression from vector \a coeffs when passed as an rvalue reference */
+template<typename Derived>
+inline typename DiagonalWrapper<const Derived>::PlainObject Scaling(MatrixBase<Derived>&& coeffs)
+{ return typename DiagonalWrapper<const Derived>::PlainObject(std::move(coeffs.derived())); }
+
 /** \deprecated */
 typedef DiagonalMatrix<float, 2> AlignedScaling2f;
 /** \deprecated */