C++ | Templates | Question 4
Output of following program?
#include <iostream> using namespace std; template <class T> class Test { private: T val; public: static int count; Test() { count++; } }; template<class T> int Test<T>::count = 0; int main() { Test<int> a; Test<int> b; Test<double> c; cout << Test<int>::count << endl; cout << Test<double>::count << endl; return 0; } |
(A)
0 0
(B)
1 1
(C)
2 1
(D)
1 0
Answer: (C)
Explanation: There are two classes created by the template: Test and Test.
Since count is a static member, every class has its own copy of it. Also, count gets incremented in constructor.
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