//function to clear all pointers
void clearMemory(bus* &pointer)
{
  bus *next;
  bandMember *current;
 
 
  next = pointer;
  while(next != NULL)
  {
      current = next->memListPtr;
      while(current)
      {
        bandMember *hold = current;
        current = current->memberPtr;
        delete hold;
      }
    bus* hold = next;
    next = next->busPtr;
    delete hold;
 
  } 
  pointer = NULL;
}
 
void Add(bus*& head)
{
    bus* node = new bus;
    node->busPtr = 0;
    node->memListPtr = 0;
    if(head == NULL)
        head = node;
    else
    {
        bus* next = head;
        while(next->busPtr)
            next = next->busPtr;
        next->busPtr = node;
    }
}
 
int main()
{
    bus* head = 0;
    for(int i = 0; i < 5; i++)
        Add(head);
    clearMemory(head);
}