I need help with this C++ error please.

[mulder]

Ok, I am having to do a child class call MyBinTree for a BinTree parent class. If you can't tell, this is dealing with binary trees. I am getting most of it, but here is an error I am running into. We are asked to write a function call genPreOrderArray, which will read the binary tree in the pre-order traversal. That function is supposed to return a pointer of whatever type is declared (we are using templates). Here is some code...

In the MyBinTree.h (Header file)

template <class obj>
MyBinTree<obj>* MyBinTree<obj>::genPreOrderArray()
{
return preOrder(root);
}

template <class obj>
MyBinTree<obj>* MyBinTree<obj>:: PreOrder(BinNodePtr nodePtr)
{
return nodePtr;
if(nodePtr->leftchild != NULL)
preOrder(nodePtr->leftchild);
if(nodePtr->rightchild != NULL)
preOrder(nodePtr->rightchild);
}

In the main.cpp which is making the calls
cout << &quot;Pre Order : &quot;;
char* treearray = mytree.genPreOrderArray();
for (int j=0;j<mytree.size();j++)
cout << treearray[j] << &quot; &quot;;
cout << endl << endl;
delete [] treearray;

My error generated is that is can't convert MyBinTree<char>* to char* and it refers to the char* treearray = mytree.genPreOrderArray(); line. I know I may have left out information you might need to answer this. So, please ask if you need more. I can't figure out how to fix this. Thanks.

[EDIT]
The reason I have the preOrder function as well as the genPreOrder Array is because the teacher said the genPreOrderArray couldn't take arguments, so this is the shortcut I used instead.