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  1. #include <iostream>
  2. #include <memory>
  3. using namespace std;
  4.  
  5. class Component {
  6. public: 
  7. 	void show() { cout << "It's me, component "<<this<<endl; }
  8. 	virtual ~Component() {}
  9. };
  10.  
  11. class MeshComponent:public Component {
  12. public:
  13. 	void test() { cout << "It's me, mesh component "<<this<<endl; }
  14. };
  15.  
  16. const shared_ptr<Component> init() {
  17. 	return make_shared<MeshComponent>(); 
  18. }
  19.  
  20. int main() {
  21. 	auto p = init(); 
  22.  
  23. 	p->show(); 
  24. 	auto q = dynamic_pointer_cast<MeshComponent>(init()); 
  25.     if (q) {
  26.     	q->show(); 
  27. 		q->test(); 
  28.     }
  29.     else cout << "Oh oh, something wrong happened"<<endl; 
  30.  
  31. 	return 0;
  32. }
Success #stdin #stdout 0s 4316KB
comments (?)
stdin 
Standard input is empty
stdout 
It's me, component 0x561117bfce80
It's me, component 0x561117bfdeb0
It's me, mesh component 0x561117bfdeb0
https://ideone.com/pEf4Hc
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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