From c1d356e8b4b84fa5c7172567d5529f52191ed85b Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Wed, 5 Dec 2018 15:01:04 +0100
Subject: [PATCH] bug #1635: Use infinity from Numtraits instead of creating it
 manually.

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

diff --git a/Eigen/src/Core/ConditionEstimator.h b/Eigen/src/Core/ConditionEstimator.h
index 8c1a89129..51a2e5f1b 100644
--- a/Eigen/src/Core/ConditionEstimator.h
+++ b/Eigen/src/Core/ConditionEstimator.h
@@ -160,7 +160,7 @@ rcond_estimate_helper(typename Decomposition::RealScalar matrix_norm, const Deco
 {
   typedef typename Decomposition::RealScalar RealScalar;
   eigen_assert(dec.rows() == dec.cols());
-  if (dec.rows() == 0)              return RealScalar(1)/RealScalar(0);
+  if (dec.rows() == 0)              return NumTraits<RealScalar>::infinity();
   if (matrix_norm == RealScalar(0)) return RealScalar(0);
   if (dec.rows() == 1)              return RealScalar(1);
   const RealScalar inverse_matrix_norm = rcond_invmatrix_L1_norm_estimate(dec);