caf::callback< Ts > Class Template Reference

Describes a simple callback, usually implemented via lambda expression. More...

#include <callback.hpp>

Public Member Functions
virtual error	operator() (Ts...)=0

Related Functions
(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.

Detailed Description

template<class... Ts>
class caf::callback< Ts >

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.

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The documentation for this class was generated from the following file:

• /build/actor-framework-OZYk4D/actor-framework-0.16.3/libcaf_core/caf/callback.hpp