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  1. #include <iostream>
  2.  
  3. template <typename T>
  4. class C
  5. {
  6. public:
  7.     explicit C(T data) : data_(data) {}
  8.     friend std::ostream& operator<<(std::ostream& os, const C<T>& dt)
  9.     {
  10.         return os << dt.data_;
  11.     }
  12. private:
  13.     T data_;
  14. };
  15.  
  16. int main()
  17. {
  18.     C<int> der(234);
  19.     std::cout << der;
  20. }
  21.  
Success #stdin #stdout 0s 3412KB
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Standard input is empty
stdout
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234
https://ideone.com/ddT847
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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