#ifndef BTNODEVISITOR_H
#define BTNODEVISITOR_H

template <class T, class S, class R>
class btNodeVisitor;

#include "binTreeNode.h"

template <class T, class S, class R>
class btNodeVisitor
{
public:
  virtual R visit(binTreeNode<T> *p, const S& x) = 0;
};
#endif