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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. struct A {
  6. 	virtual void print(){ cout << "A\n"; }
  7. 	void output(){ cout << "A\n"; }
  8. };
  9.  
  10. struct B : public A {
  11. 	virtual void print(){ cout << "B\n"; }
  12. 	void output(){ cout << "B\n"; }
  13. };
  14.  
  15. struct C : public A {
  16. 	virtual void print(){ cout << "C\n"; }
  17. 	void output(){ cout << "C\n"; }
  18. };
  19.  
  20. struct B1 : public B {
  21. 	virtual void print(){ cout << "B1\n"; }
  22. 	void output(){ cout << "B1\n"; }
  23. };
  24.  
  25. struct B2 : public B {
  26. 	virtual void print(){ cout << "B2\n"; }
  27. 	void output(){ cout << "B2\n"; }
  28. };
  29.  
  30. struct C1 : public C {
  31. 	virtual void print(){ cout << "C1\n"; }
  32. 	void output(){ cout << "C1\n"; }
  33. };
  34.  
  35. struct C11 : public C1 {
  36. 	virtual void print(){ cout << "C11\n"; }
  37. 	void output(){ cout << "C11\n"; }
  38. };
  39.  
  40. int main() {
  41. 	vector<A*> children_;
  42. 	A a;
  43. 	B b;
  44. 	B1 b1;
  45. 	B2 b2;
  46. 	C c;
  47. 	C1 c1;
  48. 	C11 c11;
  49.  
  50. 	children_.push_back(&a);
  51. 	children_.push_back(&b);
  52. 	children_.push_back(&b1);
  53. 	children_.push_back(&b2);	
  54. 	children_.push_back(&c);
  55. 	children_.push_back(&c1);
  56. 	children_.push_back(&c11);
  57.  
  58. 	for(auto& i : children_) {
  59. 		i->print();
  60. 		i->output();
  61.  
  62. 		if(dynamic_cast<B*>(i) != nullptr) {
  63. 			if(dynamic_cast<B1*>(i) != nullptr) {
  64. 				static_cast<B1*>(i)->output();
  65. 			} else if(dynamic_cast<B2*>(i) != nullptr) {
  66. 				static_cast<B2*>(i)->output();
  67. 			} else {
  68. 				static_cast<B*>(i)->output();
  69. 			}
  70. 		} else if(dynamic_cast<C*>(i) != nullptr) {
  71. 			if(dynamic_cast<C1*>(i) != nullptr) {
  72. 				if(dynamic_cast<C11*>(i) != nullptr) {
  73. 					static_cast<C11*>(i)->output();
  74. 				} else {
  75. 					static_cast<C1*>(i)->output();
  76. 				}
  77. 			} else {
  78. 				static_cast<C*>(i)->output();
  79. 			}
  80. 		} else {
  81. 			i->output();
  82. 		}
  83. 		cout << endl;
  84. 	}
  85. }
Success #stdin #stdout 0s 3464KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
A
A
A

B
A
B

B1
A
B1

B2
A
B2

C
A
C

C1
A
C1

C11
A
C11
https://ideone.com/XSjMHW
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
secret

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