Describes a simple callback, usually implemented via lambda expression. More...
|virtual error||operator() (Ts...)=0|
(Note that these are not member functions.)
|template<class F >|
|select_callback< F >::type||make_callback (F fun)|
|Creates a callback from a lambda expression. |
Describes a simple callback, usually implemented via lambda expression.
Callbacks are used as "type-safe function objects" wherever an interface requires dynamic dispatching. The alternative would be to store the lambda in a
std::function, which adds another layer of indirection and requires a heap allocation. With the callback implementation of CAF, the object remains on the stack and does not cause more overhead than necessary.