void F_addChild(parentNodePtr,newNodePtr)

A new child is added to the parent node, and a pointer to the new child is returned in newNodePtr. The type of newNodePtr is checked and the new child is of the appropriate type.

The following code creates a new tree and adds an erp child below the top level node.

eventNode *ev;
erpNode *erpPtr;

F_createTree(ev);
F_addChild(ev,erpPtr);