相关疑难解决方法(0)

我在C中的链表的插入方法遇到了一些麻烦.它似乎只在列表的开头添加.我做的任何其他插入都失败了.而这个CodeBlocks调试器很难理解我仍然没有得到它.它永远不会给我价值,只有内存中的地址.无论如何这是我的功能.你有没有看到它失败的原因？

/* function to add a new node at the end of the list */
int addNodeBottom(int val, node *head){

    //create new node
    node *newNode = (node*)malloc(sizeof(node));

    if(newNode == NULL){
        fprintf(stderr, "Unable to allocate memory for new node\n");
        exit(-1);
    }

    newNode->value = val;

    //check for first insertion
    if(head->next == NULL){
        head->next = newNode;
        printf("added at beginning\n");
    }

    else
    {
        //else loop through the list and find the last
        //node, insert next to it
        node *current = head;
        while(current->next != NULL) …