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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Abstract {
  5. public:
  6. 			Abstract( void ) { cout << "Abstract constructor" << endl; };
  7. 	virtual	~Abstract( void ) {};
  8. 	void	Foo( void ) { cout << "Abstract::Foo()"<< endl; };
  9. };
  10.  
  11. class Derived: public Abstract {
  12. public:
  13. 			Derived( void ): Abstract() { cout << "Derived constructor" << endl; };
  14. 			~Derived( void ) {};
  15. 	void	Foo( void ) { cout << "Derived::Foo()"<< endl; };
  16. };
  17.  
  18. void Bar( Derived obj ) {
  19. 	obj.Foo();
  20. }
  21.  
  22. int main(void) {
  23. 	Derived X;
  24. 	Bar ( X );
  25.     return 0;
  26. }
Success #stdin #stdout 0s 3468KB
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Standard input is empty
stdout
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Abstract constructor
Derived constructor
Derived::Foo()
https://ideone.com/b1BmDE
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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