Forward declare typedef within C++ class

Question

What\'s the best solution to forward declare a typedef within a class. Here\'s an example of what I need to solve:

class A;
class B;

class A
{
    typedef boos         


        

Answer 1

There's no way to forward declare either

1. A typedef
2. A name in another class

So - you can't forward declare a typedef and if you could, you still wouldn't be able to do that, because you'd need to do this:

class B::Ptr;

and that's not possible