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  1. #include <vector>
  2. #include <functional>
  3. #include <iostream>
  4.  
  5. class test
  6. {
  7.     public:
  8.         int number;
  9.         test(int pass) : number(pass) {}
  10. };
  11.  
  12. int main()
  13. {
  14.     test x(1), y(2);
  15.  
  16.     std::vector<std::reference_wrapper<test>> z{ std::ref(x), std::ref(y) };
  17.  
  18.     x.number = 5;
  19.     y.number = 3;
  20.  
  21.     std::cout << z[0].get().number << std::endl; // 5
  22.     std::cout << z[1].get().number << std::endl; // 3
  23. }
Success #stdin #stdout 0s 2984KB
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Standard input is empty
stdout
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5
3
https://ideone.com/JAyown
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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