• sonymegadrive@feddit.uk
    16·
    4 months ago

    C++: Nuh, uh …

    template <typename T>
concept Crackable = requires(T obj) {
    { obj.crack() };
};

auto crack(Crackable auto& nut) {
    nut.crack();
}
    • Aatube@kbin.melroy.org
      2·
      4 months ago

      This is dangerous. The object might not have the crack() method, and this bloats the compiled size by a lot if you use it with different types. There’s also no reason I can see to use concepts here. The saner way would probably be to use inheritance and objects to mimic Java interfaces.