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  1. #include <iostream>
  2. #include <sstream> //for std::ostringstream
  3.  
  4. struct Trace
  5. {
  6.    std::ostringstream ss;
  7.  
  8.    template<typename T>
  9.    Trace& operator << (T const & data)
  10.    {
  11.         ss << data;
  12.         return *this;
  13.    }
  14.    ~Trace()
  15.    {
  16.        std::cout << ss.str() << std::endl;
  17.    }
  18. };
  19.  
  20. int main()
  21. {
  22.     Trace() << "Hello World\n" << 100 << "\nBye\n";
  23. }
Success #stdin #stdout 0.01s 2860KB
comments (?)
stdin
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Standard input is empty
stdout
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Hello World
100
Bye
https://ideone.com/gfzUd0
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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