From 9c8f7dfe9455bf48abe6275fb8b9022faac23e60 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Wed, 27 Jan 2016 18:34:42 +0100
Subject: bug #1156: fix several function declarations whose arguments were
 passed by value instead of being passed by reference

---
 unsupported/Eigen/AlignedVector3 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'unsupported/Eigen/AlignedVector3')

diff --git a/unsupported/Eigen/AlignedVector3 b/unsupported/Eigen/AlignedVector3
index f5c40a189..135eec572 100644
--- a/unsupported/Eigen/AlignedVector3
+++ b/unsupported/Eigen/AlignedVector3
@@ -188,7 +188,7 @@ template<typename _Scalar> class AlignedVector3
     }
 
     template<typename Derived>
-    inline bool isApprox(const MatrixBase<Derived>& other, RealScalar eps=NumTraits<Scalar>::dummy_precision()) const
+    inline bool isApprox(const MatrixBase<Derived>& other, const RealScalar& eps=NumTraits<Scalar>::dummy_precision()) const
     {
       return m_coeffs.template head<3>().isApprox(other,eps);
     }
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