templatizing a derived class

is it possible to templatize a derived class?

supposed i have class A, using the type string.

but i want to derive class B from class A, but templatizing it. supposed i wanted to use some of class A's functions...does the type passed have to be casted to type string?

I'm not sure what you are asking, but here are a few examples that might help:

Code:

---

// Legal
class A
{
};

template<typename T>
class B : public A
{
};

// Legal
template<typename T>
class A
{
};

class B : public A<std::string>
{
};

// Legal
template<typename S>
class A
{
};

template<typename T>
class B : public A<T>
{
};

// NOT Legal
template<typename T>
class A
{
};

class B : public A
{
};

---

thanks..why is the last one not legal? if ia class is templated all of its derivates have to also be templated?

wait nevermind, you have give it a type. that answered my question (bascially the 3rd example)
thanks :)