From 4387298e806ff58bb25e7d6cb05018960f470276 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Thu, 23 May 2019 15:31:12 +0200
Subject: [PATCH] Cast Index to RealScalar This fixes compilation issues with
 RealScalar types that are not implicitly castable from Index (e.g. ceres Jet
 types). Reported by Peter Anderson-Sprecher via eMail (grafted from
 ac21a08c130b3096669548d18abb13cdd655380f )

---
 Eigen/src/SVD/SVDBase.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Eigen/src/SVD/SVDBase.h b/Eigen/src/SVD/SVDBase.h
index 3d1ef373e..53da28488 100644
--- a/Eigen/src/SVD/SVDBase.h
+++ b/Eigen/src/SVD/SVDBase.h
@@ -183,7 +183,7 @@ public:
     // this temporary is needed to workaround a MSVC issue
     Index diagSize = (std::max<Index>)(1,m_diagSize);
     return m_usePrescribedThreshold ? m_prescribedThreshold
-                                    : diagSize*NumTraits<Scalar>::epsilon();
+                                    : RealScalar(diagSize)*NumTraits<Scalar>::epsilon();
   }
 
   /** \returns true if \a U (full or thin) is asked for in this SVD decomposition */