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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Man;
  5.  
  6. class Dog{
  7. public:
  8.  
  9.     Man *man;
  10.     void (Man::*callbackFunc)(void);
  11.  
  12.     void setCallback(Man *_man,void (Man::*_callbackFunc)(void)){
  13.         callbackFunc=_callbackFunc;
  14.         man=_man;
  15.     }
  16.  
  17.     void bite();
  18.  
  19. };
  20.  
  21. class Man
  22. {
  23. public:
  24.     void haveDogBiteYou(){
  25.         Dog *myDog = new Dog();
  26.         myDog->setCallback(this,&Man::sayAh); // How???
  27.         myDog->bite();
  28.     }
  29.  
  30.     void sayAh(){
  31.         cout << "AHHHHHH!";
  32.     }
  33. };
  34.  
  35.  
  36. void Dog::bite(){
  37. 	(man->*callbackFunc)();
  38. }
  39.  
  40.  
  41.  
  42. int main() {
  43. 	Man m;
  44. 	m.haveDogBiteYou();
  45. 	return 0;
  46. }
Success #stdin #stdout 0s 3428KB
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stdin
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Standard input is empty
stdout
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AHHHHHH!
https://ideone.com/wjRwi4
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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