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  1. #include <iostream>
  2. #include <string>
  3.  
  4. struct Logger
  5. {
  6.     std::string header;
  7.     Logger(std::string h) : header(h) {}
  8.  
  9.     friend std::ostream& operator<<(std::ostream& os, const Logger& log)
  10.     {
  11.         os << log.header;
  12.         return os;
  13.     }
  14. };
  15.  
  16. int main()
  17. {
  18.     Logger t("INFO: ");
  19.     std::cout << t << "AB:CD:EF:12:34:56 associated\n";
  20.     return 0;
  21. }
  22.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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Standard input is empty
stdout
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INFO: AB:CD:EF:12:34:56 associated
https://ideone.com/rBfILB
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
secret

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