c++ - C++ —有关typedef的问题

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                                7年前关闭。
            
                    
给出以下代码：

typedef struct IntElement
{
    struct IntElement *next; // use struct IntElement
    int         data;
} IntElement;

typedef struct IntElement
{
    IntElement *next; // Use IntElement
    int         data;
} IntElement; // why I can re-use IntElement here?

我使用上面的数据结构来定义一个链表节点。


哪个更好？
为什么可以使用重复的名称（即typedef端的struct IntElement和IntElement）？

最佳答案

C ++也不是。第一个声明是旧的C语法。第二个人是意识到您在C ++中不需要它的人，然后在一行中忘记了它。 C ++这样做是这样的：

struct IntElement {
    IntElement* next;
    int data;
};