// TreeNode.h: TreeNode class definition // CS 2150: Lab 5 #ifndef TREENODE_H #define TREENODE_H #include <string> using namespace std; class TreeNode { public: TreeNode(); //Default Constructor TreeNode(const string & val); //Constructor private: string value; TreeNode *left, *right; // for trees friend class TreeCalc; //gives TreeCalc access to private data }; #endif