Added support for tensor references

1 files changed, 1 insertions, 0 deletions

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorForwardDeclarations.h b/unsupported/Eigen/CXX11/src/Tensor/TensorForwardDeclarations.h
index 67f478822..a72e11215 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorForwardDeclarations.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorForwardDeclarations.h
@@ -15,6 +15,7 @@ namespace Eigen {
 template<typename Scalar_, std::size_t NumIndices_, int Options_ = 0> class Tensor;
 template<typename Scalar_, typename Dimensions, int Options_ = 0> class TensorFixedSize;
 template<typename PlainObjectType, int Options_ = Unaligned> class TensorMap;
+template<typename PlainObjectType> class TensorRef;
 template<typename Derived, int AccessLevel = internal::accessors_level<Derived>::value> class TensorBase;
 
 template<typename NullaryOp, typename PlainObjectType> class TensorCwiseNullaryOp;