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  1. #include <iostream>
  2. #include <functional>
  3.  
  4. template<class R,class derived> class Base;
  5. template<class F>
  6. class AnyFunction:public Base<typename std::function<F>::result_type,AnyFunction<F>>{
  7. 	std::function<F> Fun;
  8. public:
  9.  
  10. 	typedef typename std::function<F>::result_type RT;
  11.  
  12. 	AnyFunction(std::function<F> Function){
  13. 		Fun = Function;
  14. 	}
  15.  
  16. 	RT DoFunction(typename std::function<F>::argument_type&& Arge){
  17. 		return Fun(Arge);
  18. 	}
  19.  
  20. };
  21.  
  22. template<class R,class Derived>
  23. class Base
  24. {
  25.  
  26. public:
  27.  
  28. 	typedef R RT;
  29. public:
  30. 	template<class ...Arges>
  31. 	RT operator()(Arges&& ... Arge){
  32. 		return static_cast<Derived*>(this)->DoFunction(Arge...);
  33. 	}
  34. };
  35.  
  36.  
  37.  
  38. int main(){
  39.  
  40. 	AnyFunction<int(int&)> AF([](int& N)->int{std::cout <<"Calling Lambada!"<< std::endl; return N; });
  41.  
  42. 	int N = AF(10);
  43.  
  44. 	std::cout << AF(10) << std::endl;
  45.  
  46. 	return 0;
  47. }
Success #stdin #stdout 0s 3472KB
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Calling Lambada!
Calling Lambada!
10
https://ideone.com/fs9YOw
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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