Thread: pointer to an instance of a different class

This is what I have in hand as of now:
class classA
{
public:
int classtype;
int dummy;
void * pObj;
};

class classB
{
public:
int classtype;
int dummy;
};

classA iclassA[20];
classB iclassB[20];


int main()
{
iclassA[0].pObj = (void *) &iclassB[0];
iclassB[0].dummy=5;
system("PAUSE");
return 0;
}

Here void * pObj is an attribute of classA that points to an instance of classB namely iclassB[0]. What I would like to know is how I can assign the value of an attribute of the instance iclassB[0] to an attribute of the instance iclassA[0] that holds pObj.

Shall appreciate all input.

Just a new , your post brought up a glaring question to me. In class a you have void * pObj, and in main you typecast a refrence to a classB object to void. What is a pointer to void? Points to nothing? Why don't you use classB * pObj in your classA declaration instead and avoid the typecast? Just a bit confused, then couldn't you just create a pointer in class B say classB * bObj=classA.pObj?

FillYourBrain and curlious, thank you for your input!
What I am still not clear about though is, given that an instance of class now has an attribute in the form of pObj that is of type classB *, how can this be used to assign values of attributes of the instance of classB to other attributes of the the instance of classA. That is, I have declared that iclassB[0].dummy=5. How can i assign the value that is help by this attribute to the "dummy" of iclassA[0] using pObj ??

iclassA[0].dummy = iclassA[0].pObj->dummy;

Is that what you want?