一、定位尾结点
思路:
- 初始时令指向p指向头结点,循环条件为
p->pnext!=NULL
来遍历链表即可
代码:
/// @brief 定位链表尾结点
/// @param plist
/// @return 返回定位结果
/// @retval 非NULL:尾结点地址
/// @retval NULL:定位失败
myLNode* xxx_locateTail(myLinkList* plist)
{
if (plist == NULL)
{
return NULL;
}
return xxx_locateTail_(plist->phead);
}
myLNode* xxx_locateTail_(myLNode* phead)
{
if (phead == NULL || phead->pnext == NULL)
{
return NULL;
}
myLNode* p = phead;
while (p->pnext != NULL)
{
p = p->pnext;
}
return p;
}