From 561f77707525644a10cbd971ad14bf47aa0e93e0 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 27 Jun 2017 12:05:17 +0200
Subject: [PATCH] Fix a gcc7 warning about bool * bool in abs2 default
 implementation.

---
 Eigen/src/Core/MathFunctions.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Eigen/src/Core/MathFunctions.h b/Eigen/src/Core/MathFunctions.h
index 0be4a25da..f5635c076 100644
--- a/Eigen/src/Core/MathFunctions.h
+++ b/Eigen/src/Core/MathFunctions.h
@@ -1059,6 +1059,9 @@ inline EIGEN_MATHFUNC_RETVAL(abs2, Scalar) abs2(const Scalar& x)
   return EIGEN_MATHFUNC_IMPL(abs2, Scalar)::run(x);
 }
 
+EIGEN_DEVICE_FUNC
+inline bool abs2(bool x) { return x; }
+
 template<typename Scalar>
 EIGEN_DEVICE_FUNC
 inline EIGEN_MATHFUNC_RETVAL(norm1, Scalar) norm1(const Scalar& x)