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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Base {
  5. 	virtual void foo() = 0;
  6. };
  7. struct Derived : public Base {
  8. 	void foo() {
  9. 		cout << "Hello ";
  10. 		Base::foo();
  11. 		cout << endl;
  12. 	}
  13. };
  14.  
  15. void Base::foo() {
  16. 	cout << " world";
  17. }
  18.  
  19. int main() {
  20. 	Derived d;
  21. 	d.foo();
  22. 	return 0;
  23. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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Hello  world
https://ideone.com/xoW9Hr
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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