I want to Cython wrap a set of C++ functions that return multiple 2D std::vector arrays by passing numpy arrays to it by reference. To illustrate this use case, below is a c++ function that returns ...

Functions that return multiple values are hard to name clearly. It's easy to mistake the order of the return values. (password, username) = GetUsernameAndPassword() ...

This is something that has bugged me somewhat, and I haven't found a very clear answer. So you have a function that is supposed to do something. You pass it input and get output. References would ...