pybind11/tests/test_class.cpp

102     struct BaseClass {
103         BaseClass() = default;
104         BaseClass(const BaseClass &) = default;
105         BaseClass(BaseClass &&) = default;
106         virtual ~BaseClass() {}
108     struct DerivedClass1 : BaseClass { };
109     struct DerivedClass2 : BaseClass { };
111     py::class_<BaseClass>(m, "BaseClass").def(py::init<>());
115     m.def("return_class_1", []() -> BaseClass* { return new DerivedClass1(); });
116     m.def("return_class_2", []() -> BaseClass* { return new DerivedClass2(); });
117     m.def("return_class_n", [](int n) -> BaseClass* {
120         return new BaseClass();
122     m.def("return_none", []() -> BaseClass* { return nullptr; });