c - C结构链表分割错误

我正在学习C语言中的链表，我的删除功能有问题。线路出现分段故障：
while(current1 != NULL && (current1->next->data != d))

void delete(int d)
{
    struct list * current1 = head;
    struct list * current2;

    if (len() == 0)
    { //prtError("empty");
        exit(0);
    }
    if (head -> data == d)
    {
        head = head -> next;
    }

    //Check if last node contains element
    while (current1->next->next != NULL)
        current1 = current1->next;
    if(current1->next->data == d)
            current1->next == NULL;

    current1 = head; //move current1 back to front */

    while(current1 != NULL && (current1->next->data != d))
        current1 = current1 -> next;

    current2 = current1 -> next;
    current1 -> next = current2 -> next;
}

最佳答案

您的测试要确保current1中至少有一个元素，因此current1 != NULL可以保证工作，但它可能返回current1->next本身，导致NULL在尝试从下一个元素获取数据时崩溃。

关于c - C结构链表分割错误，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/17559120/