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  1. #include <iostream>
  2.  
  3. class IPlayer
  4. {
  5. public:
  6. 	virtual bool IsValid() = 0;
  7. 	virtual bool Equals(const IPlayer *other) = 0;
  8. };
  9.  
  10. class ILocalPlayer : virtual public IPlayer
  11. {
  12. public:
  13. 	virtual bool CanShoot() = 0;
  14. };
  15.  
  16. class SourcePlayer : virtual public IPlayer
  17. {
  18. public:
  19. 	SourcePlayer(int index)
  20. 		: index(index)
  21. 	{
  22.  
  23. 	}
  24.  
  25. 	virtual bool IsValid()
  26. 	{
  27. 		return true;
  28. 	}
  29.  
  30. 	virtual bool Equals(const IPlayer *other)
  31. 	{
  32. 		//const SourcePlayer *p = dynamic_cast<const SourcePlayer*>(other);
  33. 		//return index == p->index;
  34. 		return Equals(dynamic_cast<const SourcePlayer*>(other));
  35. 	}
  36.  
  37. 	bool Equals(const SourcePlayer *other)
  38. 	{
  39. 		return index == other->index;
  40. 	}
  41.  
  42. private:
  43. 	int index;
  44. };
  45.  
  46. class SourceLocalPlayer : public SourcePlayer, public ILocalPlayer
  47. {
  48. public:
  49. 	SourceLocalPlayer(int index)
  50. 		: SourcePlayer(index)
  51. 	{
  52.  
  53. 	}
  54.  
  55. 	virtual bool CanShoot()
  56. 	{
  57. 		return false;
  58. 	}
  59. };
  60.  
  61. int main()
  62. {
  63. 	ILocalPlayer *local = new SourceLocalPlayer(1);
  64. 	IPlayer *player = new SourcePlayer(1);
  65.  
  66. 	std::cout << (local->Equals(player) ? "gleich" : "ungleich");
  67.  
  68. 	delete player;
  69. 	delete local;
  70. }
Runtime error #stdin #stdout 0s 3984KB
comments (?)
stdin 
Standard input is empty
stdout 
gleich
https://ideone.com/q09i8
language:
C++14 (gcc 8.3)
created:
14 years ago
visibility:
secret

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