From 8dd17cbe80ef460e9fbd562d6de6ae19b264caea Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Thu, 17 Dec 2015 14:00:33 -0800
Subject: Fixed a clang compilation warning triggered by the use of arrays of
 size 0.

---
 unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h')

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h b/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h
index 785321666..f28a9699d 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h
@@ -101,13 +101,18 @@ bool operator!=(const Tuple<U, V>& x, const Tuple<U, V>& y) {
 
 
 #ifdef EIGEN_HAS_SFINAE
-namespace internal{
+namespace internal {
 
   template<typename IndexType, Index... Is>
   EIGEN_CONSTEXPR EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
   array<Index, sizeof...(Is)> customIndices2Array(IndexType& idx, numeric_list<Index, Is...>) {
     return { idx[Is]... };
   }
+  template<typename IndexType>
+  EIGEN_CONSTEXPR EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+  array<Index, 0> customIndices2Array(IndexType&, numeric_list<Index>) {
+    return array<Index, 0>();
+  }
 
   /** Make an array (for index/dimensions) out of a custom index */
   template<typename Index, std::size_t NumIndices, typename IndexType>
-- 
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