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  1. #include <iostream>
  2. #include <exception>
  3. #include <vector>
  4. #include <string>
  5. #include <iterator>
  6. #include <algorithm>
  7.  
  8. class base
  9. {
  10. public:
  11. 	base() = default;
  12. 	virtual ~base() = default;
  13.  
  14. 	void func()
  15. 	{
  16. 		std::cout << "base" << std::endl;
  17. 	}
  18.  
  19. 	virtual void g()
  20. 	{
  21. 		std::cout << "base::g" << std::endl;
  22. 	}
  23. };
  24.  
  25. class derived : public base
  26. {
  27. public:
  28. 	void func()
  29. 	{
  30. 		std::cout << "derived" << std::endl;
  31. 	}
  32.  
  33. 	void g() override
  34. 	{
  35. 		std::cout << "derived::g" << std::endl;
  36. 	}
  37.  
  38. 	void e()
  39. 	{
  40. 		std::cout << "derived:e" << std::endl;
  41. 	}
  42. };
  43.  
  44. void st(void)
  45. {
  46. 	static int x = 1;
  47. 	std::cout << x << std::endl;
  48. 	++x;
  49. }
  50.  
  51. int main()
  52. {
  53. 	base b;
  54. 	derived d;
  55.  
  56. 	base& bRef = b;
  57. 	base& dRef = d;
  58.  
  59. 	bRef.g();
  60. 	dRef.g();
  61.  
  62. 	static_cast<derived&>(bRef).e();
  63.  
  64. 	return 0;
  65. }
Success #stdin #stdout 0s 15240KB
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Standard input is empty
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base::g
derived::g
derived:e
https://ideone.com/NzK90p
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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