diff options
Diffstat (limited to 'unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h')
| -rw-r--r-- | unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h b/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h index 24a0df820..c7af02b11 100644 --- a/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h +++ b/unsupported/Eigen/CXX11/src/Tensor/TensorBroadcasting.h @@ -99,6 +99,10 @@ struct TensorEvaluator<const TensorBroadcastingOp<Broadcast, ArgType>, Device> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE TensorEvaluator(const XprType& op, const Device& device) : m_impl(op.expression(), device) { + // The broadcasting op doesn't change the rank of the tensor. One can't broadcast a scalar + // and store the result in a scalar. Instead one should reshape the scalar into a a N-D + // tensor with N >= 1 of 1 element first and then broadcast. + EIGEN_STATIC_ASSERT(NumDims > 0, YOU_MADE_A_PROGRAMMING_MISTAKE); const typename TensorEvaluator<ArgType, Device>::Dimensions& input_dims = m_impl.dimensions(); const Broadcast& broadcast = op.broadcast(); for (int i = 0; i < NumDims; ++i) { |