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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. class Interface
  6. {
  7. public:
  8.         virtual void print() = 0;
  9. };
  10.  
  11. class Derived : public Interface
  12. {
  13. public:
  14.         virtual void print()
  15.         {
  16.                 std::cout << "Derived" << std::endl;
  17.         }
  18. };
  19.  
  20. class PossessDerived
  21. {
  22. public:
  23.         Interface * getPossession()
  24.         {
  25. 		// Gib Interface-Zeiger auf polymorphes Objekt zurück
  26.                 return static_cast<Interface *>(&d);
  27.         }
  28.  
  29. private:
  30.         Derived d;
  31. };
  32.  
  33. int main(int argc, char * argv[])
  34. {
  35.         PossessDerived p;
  36.  
  37.         p.getPossession()->print();
  38.  
  39.         return 0;
  40. }
  41.  
Success #stdin #stdout 0.01s 2724KB
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stdin
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Standard input is empty
stdout
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Derived
https://ideone.com/Z1mQo
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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