alt Hacker NewsYou could do:
template<class R, class... Args>
struct FnBase {
virtual R operator()(Args...) = 0;
};
class MyThread : FnBase<void> { ... };You could do:
template<class R, class... Args>
struct FnBase {
virtual R operator()(Args...) = 0;
};
class MyThread : FnBase<void> { ... };
This is pithy and clever, but in exchange makes the code less obviously self-documenting (implementation details creeping into type declarations) and complicates implementing multiple interfaces on the same receiver.