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  1. #include <iostream>
  2. #include <functional>
  3. using namespace std;
  4.  
  5. template <class TR = void, class ... Types>
  6. struct GenericFunc 
  7. #ifndef SWIG
  8. 	: std::function<TR (Types...)>
  9. #endif
  10. {
  11. 	GenericFunc() {}
  12.  
  13. #ifndef SWIG
  14. 	GenericFunc(const std::function<TR (Types... t)> & Action) : std::function<TR (Types... t)>(Action) {}
  15. #endif
  16. 	virtual TR OnAction(Types ... result) {
  17. 		if(*this) {
  18. 			return (*this)(result...);
  19. 		}
  20. 	}
  21. 	virtual ~GenericFunc(){}
  22. };
  23.  
  24. template<class... Types>
  25. using GenericAction = GenericFunc<void, Types...>;
  26.  
  27. typedef GenericAction<int> iAction;
  28.  
  29. int main() {
  30. 	iAction ia;
  31. 	iAction ia2([&](int i) {std::cout << i << endl;});
  32. 	ia.OnAction(1);
  33. 	ia2.OnAction(2);
  34. 	return 0;
  35. }
Success #stdin #stdout 0s 3276KB
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https://ideone.com/zXqxR1
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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