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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct foo {};
  5.  
  6. foo& operator<<(foo& f, int data)
  7. {
  8. 	cout << "int: " << data;
  9. 	return f;
  10. }
  11.  
  12.  
  13. foo& operator<<(foo& f, const char* data)
  14. {
  15. 	cout << "char: " << data;
  16. 	return f;
  17. }
  18.  
  19. foo& debug_out()
  20. {
  21. 	static foo foo_;
  22. 	return foo_;
  23. }
  24.  
  25. typedef enum {
  26.     Ok = 0,
  27.     NonOk = 10
  28. } MyEnum;
  29.  
  30. foo& operator<<(foo& out, MyEnum var)
  31. {
  32.     switch(var)
  33.     {
  34.         case Ok:
  35.             return out << "Ok";
  36.         case NonOk:
  37.             return out << "NonOk";
  38.         default:
  39.             return out << "wrong val: " << static_cast<int>(var);
  40.     }
  41. };
  42.  
  43. int main() {
  44. 	// your code goes here
  45. 	debug_out() << 10;
  46. 	cout << endl;
  47. 	debug_out() << "10";
  48. 	cout << endl;
  49. 	debug_out() << NonOk;
  50. 	cout << endl;
  51. 	return 0;
  52. }
Success #stdin #stdout 0s 4404KB
comments (?)
stdin
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Standard input is empty
stdout
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int: 10
char: 10
char: NonOk
https://ideone.com/qd3Ses
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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