Access via iterator to pointer container

[atlmallu]

I am a c++ newbie and I am trying something very similar. Here's my code -

class A
{
protected:
  Pointer * p;
  double d;
};

class B:public A
{
.
.
}

int main()
{
 for (list<B *>::const_iterator it = listeB_.begin(); it!=listeB_.end(); it++)
        {
                cout << (it->p)->getNumero() << endl; 
}

The error is 'request for member 'p' in ...., which is of non-class type ....

Basically, I need to print the value for p. Where am I going wrong?

Thanks for your help in advance.

Raj

[tabstop]

it is a iterator over a list<B *>, therefore if you dereference it (which you do with the -> notation), you get a ... B*, and not a B. Therefore the left hand side is not a class, and therefore any attempt to access a member will fail miserably. You will need to take it, dereference it once to get a B*, and then again to get a B; so something like (*it)-> ....

[CornedBee]

Your current problem doesn't actually have anything to do with the other thread, so I split this off. But even if it did have something to do, you should create a new thread and link the old one instead of taking over.

Your first problem is that you have an iterator over a container holding pointers. Let's keep in mind that a->b is supposed to be semantically equivalent to (*a).b
What is the type of (*it) in your example? Because the container is of B*, the type of (*it) is also B*, on which you can't use the dot operator. To access the members of B, you need to do (*it)->member.

But that doesn't resolve your other problem. You're outside B. You have no access rights to B's non-public members, no matter where they come from. If you need that access, you have a design problem, and we'll need more information to help you with that.