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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Strip{
  5. public:
  6.     typedef void(Strip::*LOG)(const std::string&);
  7. 	void log(const string& s)
  8. 	{
  9. 		cout << "log() called\n";
  10. 	}     
  11. };
  12.  
  13. class Observable{
  14. public:
  15.   Observable( Strip::LOG l )
  16. 	{
  17. 		Strip s;
  18. 		(s.*l)("string");
  19. 	}
  20. };
  21.  
  22. int main() {
  23.  
  24. 	Strip::LOG log = &Strip::log;
  25. 	Observable o( log );
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 3428KB
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stdin
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Standard input is empty
stdout
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log() called
https://ideone.com/RD4K1r
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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