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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class B1 {
  5. public:
  6.     virtual void m1() { 
  7.     	cout << "B1::m1\n"; 
  8.    	}
  9. };
  10.  
  11. class B2 {
  12. public:
  13.     virtual void m2() = 0;
  14. };
  15.  
  16. class I : public B1, public B2 {
  17. public:
  18.     virtual void m2() = 0;
  19. };
  20.  
  21. class D1 : public I {
  22. public:
  23.     virtual void m2() {
  24.     	cout << "D1::m2\n";
  25.     }
  26.  
  27. };
  28.  
  29. class D2 : public I {
  30. public:
  31.     virtual void m2() {
  32.     	cout << "D2::m2\n";
  33.     }
  34.  
  35. };
  36.  
  37. class Client {
  38. public:
  39. 	Client() {
  40. 		optionD1 = new D1();
  41. 		optionD2 = new D2();
  42. 	}
  43. 	~Client() {
  44. 		delete optionD1;
  45. 		delete optionD2;
  46. 	}
  47. 	void m3() {
  48. 		optionD1->m1();
  49. 		optionD1->m2();
  50. 		optionD2->m1();
  51. 		optionD2->m2();
  52. 	}
  53. private:
  54.     I *optionD1;
  55.     I *optionD2;
  56. };
  57.  
  58. int main() {
  59. 	Client c;
  60. 	c.m3();
  61. 	return 0;
  62. }
Success #stdin #stdout 0s 3428KB
comments (?)
stdin 
Standard input is empty
stdout 
B1::m1
D1::m2
B1::m1
D2::m2
https://ideone.com/V7aEoo
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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