PostDelegating Constructors

Delegating Constructors Delegating constructors allow the default constructor of a class to call the parameterized constructor by default. This is somewhat unintuitive, but has a lot of applications in frameworks that generate components dynamically down inside their operation, but cannot take the arguments at that managerial level. class SpecialWindow : public Gtk::Window { public: // 1. Parameterized Constructor SpecialWindow(std::string inst_name, int inst_val) : name(inst_name), val(inst_val) { // ... } // default /w delegating constructor SpecialWindow() : SpecialWindow("item 1", 100) { //... } }; int main() { auto app = Gtk::Application::create("org.gtkmm.examples.base"); return app->make_window_and_run<SpecialWindow>(argc, argv); } I guess "everybody knew" that already, but I didn't. https://redd.it/1wssxsq @r_cpp