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#include <iostream>
using namespace std;
 
class Test {
	public:
	void Start() {
		cout << "Start" << endl;
	}
	void Stop() {
		cout << "Stop" << endl;
	}
};
 
template<typename T = Test> 
class Location : public T {
	public:
	Location() {
		T::Start();
	}
	~Location() {
		T::Stop();
	}
};
 
template<typename T, typename T2> 
class Location<T2> : public T {
	public:
	Location() {
		T::Start();
	}
	~Location() {
		T::Stop();
	}
};
 
int main() {
	Location<Test, int> obj;
	// your code goes here
	return 0;
}

prog.cpp:26:7: error: template parameters not deducible in partial specialization:
 class Location<T2> : public T {
       ^~~~~~~~~~~~
prog.cpp:26:7: note:         ‘T’
prog.cpp: In function ‘int main()’:
prog.cpp:37:20: error: wrong number of template arguments (2, should be at least 0)
  Location<Test, int> obj;
                    ^
prog.cpp:15:7: note: provided for ‘template<class T> class Location’
 class Location : public T {
       ^~~~~~~~

Standard output is empty