From 385d8b5e42c2e4f28de09e6e3fbc77b3b76bd51f Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Fri, 13 Apr 2018 19:01:37 +0200
Subject: [PATCH] Make hypot_impl compile again for types with
 expression-templates (e.g., boost::multiprecision)

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

diff --git a/Eigen/src/Core/MathFunctionsImpl.h b/Eigen/src/Core/MathFunctionsImpl.h
index b807406de..9c1ceb0eb 100644
--- a/Eigen/src/Core/MathFunctionsImpl.h
+++ b/Eigen/src/Core/MathFunctionsImpl.h
@@ -90,7 +90,7 @@ struct hypot_impl
   static inline RealScalar run(const Scalar& x, const Scalar& y)
   {
     EIGEN_USING_STD_MATH(abs);
-    return positive_real_hypot(abs(x), abs(y));
+    return positive_real_hypot<RealScalar>(abs(x), abs(y));
   }
 };