Template Subclass

[o1vk4iN6]

I am trying to create a class with a template and than subclass it like so:

template<class T>
class A : public D { //D is defined else where and I am subclassing it as well
protected:
    T* data;

public:
    A(int);
    ~A();
};

template<class T>
A<T>::A(int x) : D(x) { ... }

template<class T>
A<T>::~A() { ... }

Than I have my class which subclasses it:

class B : A<float> {
public:
     B(int);
     ~B();
};

B::B(int x) : A(x) { ... }
B::~B() : ~A() { ... }

I keep getting an unresolved external symbol for A<float>::A() and A<float>::~A().

Thanks for any help.

[helios]

Template functions have to be declared and defined in the header.

_{Man, I've lost count of how many times I've said this already.}