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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using std::cout;
  5. using std::endl;
  6. using std::vector;
  7.  
  8. class A
  9. {
  10.     public:
  11.         virtual void f() { cout << "A" << endl; }
  12. };
  13.  
  14. class B : public A
  15. {
  16.     public:
  17.         void f() { cout << "B" << endl; }
  18. };
  19.  
  20. int main()
  21. {
  22.     vector<A*> items;
  23.     items.push_back(new A());
  24.     items.push_back(new B());
  25.     items[0]->f();
  26.     items[1]->f();
  27.     return 0;
  28. }
  29.  
Success #stdin #stdout 0s 3472KB
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stdin
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Standard input is empty
stdout
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A
B
https://ideone.com/27qJ2d
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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