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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. #include <set>
  5.  
  6. template <class V, class T>
  7. class Class
  8. {
  9. public:
  10.     typedef std::set<const Class<V, T>* > instances_list;
  11.  
  12.     explicit Class(const V& Value):m_value(Value)
  13.     {
  14. 	s_instances.insert(this);
  15.     }
  16. private:
  17.     static instances_list s_instances;
  18.     V m_value;
  19. };
  20.  
  21. template <typename V, typename T>
  22. typename Class<V,T>::instances_list Class<V,T>::s_instances;
  23.  
  24. class Something : public Class<int, Something>
  25. {
  26. public:
  27.     static const Something SOMETHING_CONSTANT;
  28.  
  29. private:
  30.     explicit Something(int value): Class<int, Something>(value)
  31.     {}
  32. };
  33.  
  34. const Something Something::SOMETHING_CONSTANT (1);
  35.  
  36.  
  37. int main() {
  38. 	// your code goes here
  39. 	return 0;
  40. }
Runtime error #stdin #stdout 0s 3452KB
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Standard input is empty
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Standard output is empty
https://ideone.com/Dhh8Hl
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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