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  1.  
  2. #include <functional>
  3. #include <iostream>
  4. #include <string>
  5.  
  6. struct net
  7. {
  8. 	void work() 
  9. 	{ 
  10. 		std::cout << "net: working...\n"; 
  11. 		if(this->onEvent)
  12. 		    this->onEvent("access is allowed");
  13. 	}
  14.  
  15. 	std::function<void(const std::string&)> 
  16. 	    onEvent;
  17. };
  18.  
  19.  
  20. int main() 
  21. {
  22. 	const auto reaction = [](const auto& answer){ 
  23. 		std::cout << "event: " << answer << '\n';  
  24. 	};
  25.  
  26.  
  27. 	net agent;
  28. 	agent.onEvent = reaction;
  29. 	agent.work();
  30. }
Success #stdin #stdout 0s 4564KB
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stdin
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Standard input is empty
stdout
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net: working...
event: access is allowed
https://ideone.com/lmN3u0
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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