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  1. #include<iostream>
  2. #include<functional>
  3.  
  4. class Foo{
  5. public:
  6.     Foo(void* object): obj(object) {}
  7.  
  8.     template<typename T>
  9.     void callFunc(void (T::*func)()){
  10.         m_func = std::bind(func, static_cast<T*>(obj));
  11.         m_func();
  12.     }
  13.  
  14. private:
  15.     void* obj;
  16.     std::function<void()> m_func;
  17. };
  18.  
  19. class Bar{
  20. public:
  21.     Bar(): foo(this) {}
  22.  
  23.     void callSomeFunc(){
  24.         foo.callFunc(&Bar::someFunc);
  25.     }
  26.  
  27.     void someFunc(){
  28.         std::cout << "hi\n";
  29.     }
  30.  
  31. private:
  32.     Foo foo;
  33. };
  34.  
  35. int main(){
  36.     Bar bar;
  37.     bar.callSomeFunc();
  38.     return 0;
  39. }
Success #stdin #stdout 0s 15240KB
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Standard input is empty
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hi
https://ideone.com/IQG3Hh
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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