event::EventCallback Concept Reference

valid callbacks you can subscribe More...

#include <listener.hpp>

Concept definition

template<typename F, typename TEvent>
concept EventCallback = std::is_invocable_r_v<bool, F, TEvent&> ||    // Returns bool(T&)
                        std::is_invocable_r_v<void, F, TEvent&> ||    // Returns void(T&)
                        std::is_invocable_r_v<bool, F> ||             // Returns bool()
                        std::is_invocable_r_v<void, F>

Detailed Description

valid callbacks you can subscribe

Note

if you dont return a boolean it will return false be default