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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Animal {
  5. public:
  6.     virtual void sound() {
  7.         cout << "Animal sound\n";
  8.     }
  9. };
  10.  
  11. class Dog : public Animal {
  12. public:
  13.     void bark() {
  14.         cout << "Woof!\n";
  15.     }
  16. };
  17.  
  18. class Cat : public Animal {
  19. public:
  20.     void meow() {
  21.         cout << "Meow!\n";
  22.     }
  23. };
  24.  
  25. int main() {
  26.     Animal* a = new Dog();
  27.  
  28.     Dog* d = dynamic_cast<Dog*>(a);
  29.  
  30.     if (d != nullptr) {
  31.         d->bark();
  32.     } else {
  33.         cout << "Not a Dog\n";
  34.     }
  35.  
  36.     delete a;
  37. }
Success #stdin #stdout 0s 5316KB
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stdin
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Standard input is empty
stdout
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Woof!
https://ideone.com/WJYhOz
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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