From f100d1494ced3fdfb2c6a364596fc251a9e6cecc Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Fri, 29 Apr 2016 18:14:33 -0700
Subject: [PATCH] Return the proper size (ie 1) for tensors of rank 0

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

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorDimensions.h b/unsupported/Eigen/CXX11/src/Tensor/TensorDimensions.h
index 977dcafb0..f0b8ac958 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorDimensions.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorDimensions.h
@@ -275,7 +275,7 @@ struct DSizes : array<DenseIndex, NumDims> {
   }
 
   EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE DenseIndex TotalSize() const {
-    return internal::array_prod(*static_cast<const Base*>(this));
+    return (NumDims == 0) ? 1 : internal::array_prod(*static_cast<const Base*>(this));
   }
 
   EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE DSizes() {