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  1. #include <iostream>
  2. #include <functional>
  3.  
  4. class Window
  5. {
  6. public:
  7.     void ProcessMessage(std::function<int()> create, std::function<int()> update)
  8.     {
  9.         create();
  10.         update();
  11.     }
  12. };
  13.  
  14. class App
  15. {
  16. private:
  17.     Window win;
  18.  
  19. private:
  20.     int OnUserCreate()
  21.     {
  22. 		std::cout << "OnUserCreate() called" << std::endl;
  23.         return 1;
  24.     }
  25.  
  26.     int OnUserUpdate()
  27.     {
  28. 		std::cout << "OnUserUpdate() called" << std::endl;
  29.         return 1;
  30.     }
  31.  
  32. public:
  33.     void Run()
  34.     {
  35.         win.ProcessMessage(
  36.         	[this](){ return this->OnUserCreate(); },
  37.         	[this](){ return this->OnUserUpdate(); }
  38.         );
  39.     }
  40. };
  41.  
  42. int main()
  43. {
  44.     App app;
  45.     //while (true)
  46.     {
  47.         app.Run();
  48.     }
  49. }
Success #stdin #stdout 0.01s 5400KB
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stdin
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Standard input is empty
stdout
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OnUserCreate() called
OnUserUpdate() called
https://ideone.com/XL9GUj
language:
C++ 4.3.2 (gcc-4.3.2)
created:
4 years ago
visibility:
public

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