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  1. #include <iostream>
  2.  
  3. struct T
  4. {
  5.     mutable int x;
  6.  
  7.     T() : x(0) {}
  8. };
  9.  
  10. void bar(int& x)
  11. {
  12.    x = 42;
  13. }
  14.  
  15. void foo(const T& t)
  16. {
  17.    bar(t.x);
  18. }
  19.  
  20. int main()
  21. {
  22.    T t;
  23.    foo(t);
  24.    std::cout << t.x << '\n';
  25. }
Success #stdin #stdout 0.01s 2680KB
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stdin
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Standard input is empty
stdout
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42
https://ideone.com/Fs7IkH
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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