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  1. #include <iostream>
  2. struct LogHelper
  3. {
  4. 	std::ostream& Target;
  5. 	LogHelper(std::ostream& Target)
  6. 		: Target(Target)
  7. 	{
  8. 	}
  9. 	~LogHelper()
  10. 	{
  11. 		Target << std::endl;
  12. 	}
  13. };
  14. template<class T>
  15. std::ostream& operator<< (LogHelper Stream, T const& Rhs)
  16. {
  17. 	return Stream.Target << Rhs;
  18. }
  19. struct Log
  20. {
  21. 	std::ostream& Target;
  22. 	Log(std::ostream& Target)
  23. 		: Target(Target)
  24. 	{
  25. 	}
  26. };
  27. template<class T>
  28. LogHelper operator<< (Log& Stream, T const& Rhs)
  29. {
  30. 	Stream.Target << Rhs;
  31. 	return LogHelper(Stream.Target);
  32. }
  33. Log TollesLog(std::cout);
  34. struct UserDefinedType
  35. {
  36. 	float Lhs, Rhs;
  37. 	UserDefinedType(float Lhs, float Rhs)
  38. 		: Lhs(Lhs), Rhs(Rhs)
  39. 	{
  40. 	}
  41. };
  42. std::ostream& operator<< (std::ostream& Stream, UserDefinedType const& Rhs)
  43. {
  44. 	return Stream << '(' << Rhs.Lhs << '|' << Rhs.Rhs << ')';
  45. }
  46. int main()
  47. {
  48. 	UserDefinedType Var(5, -5);
  49. 	TollesLog << "Hallo" << ' ' << "Welt" << 123;
  50. 	TollesLog << "Hallo Welt";
  51. 	TollesLog << "Mein Typ: " << Var;
  52. }
Success #stdin #stdout 0s 3340KB
comments (?)
stdin 
Standard input is empty
stdout 
Hallo Welt123
Hallo Welt
Mein Typ: (5|-5)
https://ideone.com/91xUwB
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
secret

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