From 24e4a3af2b15883422d14f4e13f656451d8d4f6d Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 14 Feb 2013 21:40:00 +0100
Subject: [PATCH] Add missing using std::sqrt

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

diff --git a/Eigen/src/Core/Functors.h b/Eigen/src/Core/Functors.h
index 2a6c3c003..e54a49808 100644
--- a/Eigen/src/Core/Functors.h
+++ b/Eigen/src/Core/Functors.h
@@ -154,6 +154,7 @@ template<typename Scalar> struct scalar_hypot_op {
   {
     using std::max;
     using std::min;
+    using std::sqrt;
     Scalar p = (max)(_x, _y);
     Scalar q = (min)(_x, _y);
     Scalar qp = q/p;