hi guys,
i get the following error when i try to create a new TreeNode
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error C2514: 'TreeNode' : class has no constructors
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this error is caused by the following line:
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treeObj->root = new TreeNode(oneline.c_str());
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and i have declared the following as a global variable:
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TreeNode<char> *treeNodeObj = NULL;
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i am very puzzled abt this because my constructor has already been declared...
i have attached the code for the TreeNode.h below:
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#pragma once
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <deque>
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#include <queue>
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using namespace std;
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template <class T>
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class TreeNode
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{
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public:
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TreeNode<T>(T newItem);
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~TreeNode<T>(void);
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void setItem(T newItem);
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void setLeft(TreeNode *newLeft);
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void setRight(TreeNode *newRight);
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T getItem();
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TreeNode<T>* getLeft();
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TreeNode<T>* getRight();
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bool IsSameNode(T c);
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T item;
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private:
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TreeNode *left;
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TreeNode *right;
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};
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template <class T>
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TreeNode<T>::TreeNode(T newItem)
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{
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item = newItem;
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left = NULL;
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right = NULL;
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}
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template <class T>
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TreeNode<T>::~TreeNode(void)
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{
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}
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template <class T>
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void TreeNode<T>::setItem(T newItem)
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{
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// set methods
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item = newItem;
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}
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template <class T>
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void TreeNode<T>::setLeft(TreeNode *newLeft)
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{
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left = newLeft;
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}
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template <class T>
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void TreeNode<T>::setRight(TreeNode *newRight)
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{
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right = newRight;
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}
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template <class T>
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T TreeNode<T>::getItem()
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{
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// get methods
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return item;
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}
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template <class T>
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TreeNode<T>* TreeNode<T>::getLeft()
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{
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return left;
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}
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template <class T>
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TreeNode<T>* TreeNode<T>::getRight()
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{
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return right;
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}
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template <class T>
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bool TreeNode<T>::IsSameNode(T c)
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{
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return this->item == c;
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}
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any help or suggestion is appreciated so please leave a comment below and i will reply within 5 mins cos i will check this forum every 5mins..
thanks :)
