C++에서 템플릿 상속할때...

#include
using namespace std;

template
class Bag{
T *array;
int capacity;
int top;
public:
Bag(int bagCapacity){
if(bagCapacity < 0) throw "Bag capacity must be >0";
capacity = bagCapacity;
array = new T[bagCapacity];
top = -1;
}
virtual ~Bag(){
delete[] array;
}

virtual int Size(){
return top+1;
}
virtual bool IsEmpty(){
return (top == -1);
}
virtual T& element(){
if(IsEmpty()) throw "Bag is empty";
return array[0];
}

virtual void Push(T x){
if(top+1 == capacity){
T *newBag = new T[2*capacity];
for(int i = 0; i < capacity; i++){
newBag[i] = array[i];
}
capacity *= 2;
delete[] array;
array = newBag;
}
top += 1;
array[top] = x;
}
virtual void Pop();
};

template
class Stack: public Bag{
public:
inline Stack(int stackCapacity){
if(stackCapacity <0) throw "Stack capacity must be >0";
this.capacity = stackCapacity;
this.array = new T[stackCapacity];
this.top = -1;
}
~Stack(){
delete[] this.array;
}

T& Top()const{
if(this.IsEmpty()) throw "Stack is empty.";
return this.array[this.top];
}

void Pop(){
if(this.IsEmpty()) throw "Stack is empty.";
this.array[this.top] = '\0';
this.top -= 1;
}
};

int main(){

Stack test(10);

return 0;
}

라고 했는데 저기 Stack 에서 constructor가 잘못됐다는 거는 알겠는데 어떻게 고쳐야 하는지 모르겠습니다..

템플릿 관련 상속은 전혀 감이 잡히지 않아서..