Question

class BaseA
{
}

class B : public BaseA
{
}

template <class T>
class C : public vector<T>
{
}

void someFunction (void)
{
    C<B> myClass;

    // I can't seem to do this...is it not possible?
    vector<BaseA> converted = ((vector<BaseA>) myClass);
}

See comment in code for what I am trying to do.

Answer 1

A vector of B isn’t a vector of A even if B is an A (I assume a mixup between A and BaseA)

Try

vector<A> converted(myClass.begin(), myClass.end());

which is probably what you want to express.

(BTW inheriting from vector is bad idea in general, it isn’t designed for that.)