// tree.cpp
#include "tree.h"

template<class type>
tree<type>::tree()
{
	root_ptr = 0;
}

template<class type>
bool tree<type>::is_empty()
{
	if (root_ptr == 0) return true;
	else return false;
}

template<class type>
void tree<type>::build_root(type someitem)
{
	root_ptr = new node<type>(someitem,0,0);
}

template<class type>
node<type> *tree<type>::root()
{
	return root_ptr;
}