How to assign discontinous numpy array to C++ array?

[kaixiongg]

This issue occurs when I tried to slice from 3d numpy array to 2d and then assign it to a C++ list. The result after slicing like np[:,:,1] is a discontinuous array (not in c or fortan order). I can't use std::copy(py::array.buf, my_continous_array_struct).

[kaixiongg]

I figured it out, we could call np.ascontiguousarray() inside pybind which enforce the array to be in c order(memory order).

[jiwaszki]

Take a look here as well: #4211 (comment)

You can use built-in capabilities of pybind to achieve the result.