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  1. #include <iostream>
  2. using namespace std;
  3. using namespace std;
  4.  
  5. struct base
  6. {
  7. 	static int tCount;	
  8. };
  9. int base::tCount = 0;  
  10. template <class T> 
  11. class Test : public base
  12. {  
  13. private:
  14.   T val; 
  15. public:
  16.   static int count;
  17.   Test()
  18.   {
  19.     count++;
  20.     tCount++;
  21.   }
  22.   // some other stuff in class
  23. };
  24.  
  25. template<class T>
  26. int Test<T>::count = 0;
  27.  
  28. int main()
  29. {
  30.   Test<int> a;  // value of count for Test<int> is 1 now
  31.   Test<int> b; 
  32.   Test<int> i;// value of count for Test<int> is 2 now
  33.   Test<double> c;  // value of count for Test<double> is 1 now
  34.   Test<char> d;
  35.   Test<float> e;
  36.   cout << Test<int>::count   << endl;  // prints 2  
  37.   cout << Test<double>::count << endl; //prints 1
  38.   cout << base::tCount <<endl;
  39.  
  40.   return 0;
  41. }
Success #stdin #stdout 0.01s 5476KB
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https://ideone.com/Ei1QYy
language:
C++14 (gcc 8.3)
created:
1 year ago
visibility:
public

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