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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Int
  5. {
  6.     int _i;
  7.     Int(int i=0) :_i{i} {}
  8.     friend Int operator+(const Int& lhs, const Int& rhs);
  9. };
  10.  
  11. Int operator+(const Int& lhs, const Int& rhs)
  12. {
  13. 	return lhs._i+rhs._i;
  14. }
  15.  
  16. int main() 
  17. {
  18. 	Int i;
  19. 	i + 5;
  20. 	5 + i;
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 3336KB
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stdout 
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https://ideone.com/YCf7wX
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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