Hi,

I am a just beginner in Eigen C++ library, I am trying to understand the code in the tensor method 'extract_image_patches' which is calling 'TensorImagepatchop' file, but I am unable to debug the tensor evaluator code. When I kept break point on one of those code lines, it is showing as 'The break point will not currently be hit. No symbols have been loaded for this document'. You can find the code for TensorImagePatch here : https://eigen.tuxfamily.org/dox/unsupported/TensorImagePatch_8h_source.html