From 661f11a2e01fb815747d2b5d2e3d326b627fb5f7 Mon Sep 17 00:00:00 2001
From: Weiming Zhao <weiming.zhao@alibaba-inc.com>
Date: Wed, 28 Mar 2018 18:49:32 -0700
Subject: [PATCH] Avoid using memcpy for non-POD elements

---
 unsupported/Eigen/CXX11/src/Tensor/TensorEvaluator.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorEvaluator.h b/unsupported/Eigen/CXX11/src/Tensor/TensorEvaluator.h
index 2264be3910a..fe62ff1ea37 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorEvaluator.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorEvaluator.h
@@ -55,7 +55,7 @@ struct TensorEvaluator
   EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Dimensions& dimensions() const { return m_dims; }
 
   EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE bool evalSubExprsIfNeeded(CoeffReturnType* dest) {
-    if (dest) {
+    if (!NumTraits<typename internal::remove_const<Scalar>::type>::RequireInitialization && dest) {
       m_device.memcpy((void*)dest, m_data, sizeof(Scalar) * m_dims.TotalSize());
       return false;
     }