From 40eb34bc5dea506fdbb2508c35d9965bb8c68013 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tobias=20Schl=C3=BCter?= <tobi@schlueters.de>
Date: Thu, 17 Mar 2022 15:28:12 +0000
Subject: [PATCH] Fix RowMajorBit <-> RowMajor mixup.

---
 Eigen/src/SVD/UpperBidiagonalization.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Eigen/src/SVD/UpperBidiagonalization.h b/Eigen/src/SVD/UpperBidiagonalization.h
index e32a3cfe3..7aac93166 100644
--- a/Eigen/src/SVD/UpperBidiagonalization.h
+++ b/Eigen/src/SVD/UpperBidiagonalization.h
@@ -163,13 +163,13 @@ void upperbidiagonalization_blocked_helper(MatrixType& A,
   typedef typename MatrixType::Scalar Scalar;
   typedef typename MatrixType::RealScalar RealScalar;
   typedef typename NumTraits<RealScalar>::Literal Literal;
-  enum { StorageOrder = traits<MatrixType>::Flags & RowMajorBit };
-  typedef InnerStride<int(StorageOrder) == int(ColMajor) ? 1 : Dynamic> ColInnerStride;
-  typedef InnerStride<int(StorageOrder) == int(ColMajor) ? Dynamic : 1> RowInnerStride;
+  static constexpr int StorageOrder = (traits<MatrixType>::Flags & RowMajorBit) ? RowMajor : ColMajor;
+  typedef InnerStride<StorageOrder == ColMajor ? 1 : Dynamic> ColInnerStride;
+  typedef InnerStride<StorageOrder == ColMajor ? Dynamic : 1> RowInnerStride;
   typedef Ref<Matrix<Scalar, Dynamic, 1>, 0, ColInnerStride>    SubColumnType;
   typedef Ref<Matrix<Scalar, 1, Dynamic>, 0, RowInnerStride>    SubRowType;
   typedef Ref<Matrix<Scalar, Dynamic, Dynamic, StorageOrder > > SubMatType;
-  
+
   Index brows = A.rows();
   Index bcols = A.cols();
 
@@ -295,7 +295,7 @@ void upperbidiagonalization_inplace_blocked(MatrixType& A, BidiagType& bidiagona
   Index size = (std::min)(rows, cols);
 
   // X and Y are work space
-  enum { StorageOrder = traits<MatrixType>::Flags & RowMajorBit };
+  static constexpr int StorageOrder = (traits<MatrixType>::Flags & RowMajorBit) ? RowMajor : ColMajor;
   Matrix<Scalar,
          MatrixType::RowsAtCompileTime,
          Dynamic,