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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Int
  5. {
  6. public:
  7. 	Int(const int& num) : _num(num) {}
  8. 	Int(const Int& num) : _num(num._num) {}
  9. 	Int& operator=(const Int& num) {
  10. 		_num = num._num;
  11. 		return *this;
  12. 	}
  13. 	~Int(void) {}
  14.  
  15. 	const int& num(void) const {
  16. 		return _num;
  17. 	}
  18.  
  19. 	Int operator++(int) {
  20. 		Int result(*this);
  21. 		_num++;
  22. 		return result;
  23. 	}
  24. private:
  25. 	int _num;
  26. };
  27.  
  28. inline const Int operator+(const Int& a, const Int& b) {
  29. 	return Int(a.num() + b.num());
  30. }
  31.  
  32.  
  33. int main(void)
  34. {
  35. 	{
  36. 		int C=2, U=0;
  37. 		U = C + C++;
  38.  
  39. 		cout << "U = " << U << endl;
  40. 	}
  41.  
  42. 	{
  43. 		Int C=2, U=0;
  44. 		U = C + C++;
  45.  
  46. 		cout << "U = " << U.num() << endl;
  47. 	}
  48. 	return 0;
  49. }
Success #stdin #stdout 0.01s 2724KB
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stdin
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Standard input is empty
stdout
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U = 4
U = 5
https://ideone.com/4S1uA
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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