链接列表插入节点 - 如何引用参数

Question

所以我有一个链接列表，我传入一些参数，在这种情况下，它是一个框，参数是长度，宽度和高度。我想要的是能够打印输入的值。目前，我的指针是盒子的体积，长度，宽度和高度相乘。当节点落后于另一个节点时，我希望它显示为10x2x5 inserted at front of list而不是100 inserted at front of list。

插入节点的代码：

template <typename T>void LinkList<T>::insertNode(const T &length, const T &width, const T &height) {
LinkNode<T>*newPtr = getNewNode(length * width * height);
bool inserted = false;

if (isEmpty() || (newPtr->data < firstPtr->data)) {
    newPtr->nextPtr = firstPtr;
    firstPtr = newPtr;
    cout << newPtr->data << " inserted at front of list\n";
}
else {
    LinkNode<T>*currentPtr = firstPtr;
    while (currentPtr->nextPtr && !inserted) {
        if (newPtr->data < currentPtr->nextPtr->data) {
            cout << newPtr->data << " inserted before " << currentPtr->nextPtr->data << endl;
            newPtr->nextPtr = currentPtr->nextPtr;
            currentPtr->nextPtr = newPtr;
            inserted = true;
        }
        else {
            currentPtr = currentPtr->nextPtr;
        }
    }
    if (!inserted) {
        currentPtr->nextPtr = newPtr;
        cout << newPtr->data << " inserted at end of list\n";
    }
}
}

打印值代码：

template<typename T>void LinkList<T>::print()const {
if (isEmpty()) {
    cout << "No boxes in list!\n";
}
else {
    LinkNode<T>*currentPtr = firstPtr;
    cout << "Your boxes are: ";
    while (currentPtr != NULL) {
        cout << currentPtr->data << ' ';
        currentPtr = currentPtr->nextPtr;
    }
    cout << "\n";
}
}

节点类：

//Template ListNode class definition.
#ifndef LINKNODE_H
#define LINKNODE_H

template <typename T> class LinkList;

template <typename T>class LinkNode{
    friend class LinkNode <T>; 

    public:
        LinkNode(const T &); 
        T getData()const;
        T data;
        LinkNode <T> *nextPtr;
};

template <typename T>LinkNode <T>::LinkNode(const T &info):data(info),     nextPtr(NULL){
    // Empty body
}

template <typename T>T LinkNode<T>::getData()const{
    return data;
}

#endif