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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class MyClass
  5. {
  6. public:
  7. enum MyEnum { CONSTA, CONSTB, CONSTC };
  8.  
  9. friend MyEnum& operator++(MyEnum& orig) { return orig; }
  10. friend MyEnum operator++(MyEnum& orig, int) { return orig; }
  11. };
  12.  
  13. int main() {
  14. MyClass::MyEnum x = MyClass::CONSTA;
  15. x++;
  16. ++x;
  17. return 0;
  18. }
Success #stdin #stdout 0s 3292KB
stdin
Standard input is empty
stdout
Standard output is empty