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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. template <typename T>
  5. class Singleton
  6. {
  7. public:
  8. 	static T& Get() noexcept
  9. 	{
  10. 		static T instance;
  11. 		return instance;
  12. 	};
  13.  
  14. protected:
  15. 	Singleton() = default;
  16. };
  17.  
  18. class Foo : public Singleton<Foo>
  19. {
  20. public:
  21. 	int t = 0;
  22. };
  23.  
  24. int main() {
  25.  
  26. 	Foo foo;
  27. 	Foo::Get().t += 10;
  28.  
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 4836KB
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https://ideone.com/jwYk0J
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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