struct person {
    int id;
    char name[64+1];
    struct person * next;
};

#pragma once

#include "struct.h"

//
// list.h 似魔鬼的步伐, 单链表库
// $LIST 需要嵌入 struct 的第一行
// void * list = nullptr;      // create list
// list_delete(list, fide);    // delete list [可选]
//
struct $list {
    struct $list * next;
};

#define $LIST struct $list $node;

/**
 * struct list_node - an entry in a doubly-linked list
 * @next: next entry (self if empty)
 * @prev: previous entry (self if empty)
 *
 * This is used as an entry in a linked list.
 * Example:
 *    struct child {
 *        const char *name;
 *        // Linked list of all us children.
 *        struct list_node list;
 *    };
 */
struct list_node
{
    struct list_node *next, *prev;
};

/**
 * struct list_head - the head of a doubly-linked list
 * @h: the list_head (containing next and prev pointers)
 *
 * This is used as the head of a linked list.
 * Example:
 *    struct parent {
 *        const char *name;
 *        struct list_head children;
 *        unsigned int num_children;
 *    };
 */
struct list_head
{
    struct list_node n;
};

struct write_buffer {
    struct write_buffer * next;
    const void * buffer;
    char * ptr;
    size_t sz;
    bool userobject;
};

struct write_buffer_udp {
    struct write_buffer buffer;
    uint8_t udp_address[UDP_ADDRESS_SIZE];
};

struct wb_list {
    struct write_buffer * head;
    struct write_buffer * tail;
};

不知道有没有人好奇, 为什么不直接一开始就上升呢, 可能生命不需要赶着投胎吧, 浪费不是时间, 也不是人生, 也可能是享受到了时间, 享受到了自己来回波动的人生. 

: ) Good luckly ~

4. 未来时代, 对于个人而言, C 融入自己思维一部分, 可能不再去主动写了.