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  1. #include <iostream>
  2. #include <map>
  3. #include <memory>
  4. #include <typeinfo>
  5.  
  6.  
  7. struct Component
  8. {
  9.     template<typename T>
  10.     T & getAttribute() { return *static_cast<T*>(mAttributes[&typeid(T)].get()); }
  11.  
  12.     template<typename T>
  13.     void setAttribute(const T & inValue) { mAttributes[&typeid(T)] = std::shared_ptr<void>(new T(inValue)); }
  14.  
  15.     std::map<const std::type_info*, std::shared_ptr<void> > mAttributes;
  16. };
  17.  
  18.  
  19. int main()
  20. {
  21. 	Component comp;
  22. 	comp.setAttribute<int>(3);
  23. 	comp.setAttribute<bool>(false);
  24. 	comp.setAttribute<std::string>("abc");
  25.  
  26. 	std::cout << comp.getAttribute<int>() << std::endl;
  27. 	std::cout << comp.getAttribute<bool>() << std::endl;
  28. 	std::cout << comp.getAttribute<std::string>() << std::endl;
  29.  
  30. }
Success #stdin #stdout 0s 3072KB
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stdin
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Standard input is empty
stdout
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3
0
abc
https://ideone.com/mDX5m
language:
C++14 (gcc 8.3)
created:
13 years ago
visibility:
public

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