Convert vector/array to numpy array

[Wentzell]

• For c2py of stl types take argument by value and move elements
• Convert any std::vector and std::array<T, R> to a numpy array

[parcollet]

Move the deleter in general cpp2py file

[Wentzell]

How about we just do

auto delete_pycapsule = [](PyObject *capsule) {
          auto *ptr = static_cast<std::vector<T> *>(PyCapsule_GetPointer(capsule, "guard"));
          delete ptr;
        };
PyObject * capsule = PyCapsule_New(vec_heap, "guard", delete_pycapsule);

right where we need it?

[parcollet]

same as before

[Wentzell]

Which previous comment are you referring to?

[Wentzell]

@parcollet By taking c2py arguments by value will no longer be able to e.g. convert a member std::vector as a np.ndarray viewing the data. Taking by value cannot be the full solution.