结构内存分配 [英] Structure memory allocation

问题描述

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

当我们尚未为结构"struct node"分配内存时，编译器如何为"next"成员分配内存

How does the compiler allocate memory for "next" member in when we have not yet allocated memory for the structure "struct node"

推荐答案

next成员是一个指针-一个将包含地址node而不是node本身的变量.所有数据类型的指针通常都具有相同的大小，因此对于编译器来说，知道它是一个能够计算其大小的指针就足够了.

next member is a pointer - a variable that will contain an address of node, not node itself. All data type pointers are usually of the same size so it's enough for the compiler to know that it's a pointer to be able to compute its size.

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