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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. class Animal
  6. {
  7. public:
  8.   virtual void makeSound() {  
  9.     cout << "Animal!" << endl;
  10.   }
  11. };
  12.  
  13. class Dog : public Animal
  14. {
  15. public:
  16.   void makeSound() {
  17.     cout << "Woof" << endl;
  18.   }
  19. };
  20.  
  21.  
  22. int main()
  23. {
  24.   Dog dog;
  25.  
  26.   vector<Animal*> animal {&dog};
  27.   animal.at(0)->makeSound();
  28.   // or: animal[0]->makeSound();
  29.  
  30.   return 0;
  31. }
Success #stdin #stdout 0s 5396KB
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Standard input is empty
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Woof
https://ideone.com/DDHXPy
language:
C++ 4.3.2 (gcc-4.3.2)
created:
3 years ago
visibility:
public

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