[C++-sig] Member function of other class

[Trigve Siver]

Hi,
I'm curios, why this piece of code does compile?


struct BaseClass
{ void func() {}
}; struct Wrap
{ void func() {}
}; BOOST_PYTHON_MODULE(main)
{ class_<BaseClass>("Base", no_init) .def("func", &Wrap::func) ;
}

I'm asking because a want to do something like this and want to know if it is UB or not:

struct BaseClass
{ void func() {}
}; struct Wrap
{ static void func(BaseClass &Instance) { Instance.func(); }
}; BOOST_PYTHON_MODULE(main)
{ class_<BaseClass>("Base", init<>()) .def("func", &Wrap::func) ;
}

then in python:

import main main.Base().func()

Thank you

Trigve