%module(directors="1") cpp11_directors %feature("director"); %inline %{ class Foo { public: virtual ~Foo() noexcept {} virtual int ping() noexcept = 0; virtual int pong() noexcept = 0; virtual int pang() const& noexcept = 0; virtual int peng() & noexcept = 0; virtual int pung() & = 0; }; %}