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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. int &fun()
  5. {
  6.     int x = 10;
  7.     return x;
  8. }
  9. int main()
  10. {
  11.     fun() = 30;
  12.     cout << fun();
  13.     return 0;
  14. }
Success #stdin #stdout 0s 3340KB
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https://ideone.com/EK8PxQ
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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