Exercises

These are meant to be done as you go. If you get stuck, check the hints (or jump to Solutions).

Exercise 1 — Add documentation strings

Add a docstring to one exposed function using the third argument of m.def.

Success criteria:

• help(yourmodule.yourfunction) shows your description.

Hint:

• m.def("name", &fn, "This function ...")

Exercise 2 — Expose an overloaded function

Create two C++ functions with the same name but different signatures (e.g., add(int,int) and add(double,double)) and expose both in Python.

Success criteria:

• both variants are callable from Python without ambiguity.

Hint:

• pybind11 supports overload resolution; you may need py::overload_cast<...>(...).

Exercise 3 — Use keyword arguments

Expose a function so that Python can call it with keyword arguments.

Success criteria:

• fn(a=1, b=2) works.

Hint:

• use py::arg("a"), py::arg("b") in the binding.