小编use*_*175的帖子

我有这个问题,无法看到错误在哪里,所以我希望有人可以帮助解决它.我从编译源代码得到的错误是:

client.c:15:54: error: invalid application of ‘sizeof’ to incomplete type ‘struct client’

我在头文件中有结构定义 - client.h:

#ifndef PW_CLIENT
#define PW_CLIENT

#include <event2/listener.h>
#include <event2/bufferevent.h>
#include <event2/buffer.h>

#include <arpa/inet.h>

#include <stdlib.h>
#include <stdio.h>
#include <errno.h>

struct client {
    int id;
    struct bufferevent *bev;

    struct client *prev;
    struct client *next;
};

struct client *client_head = NULL;

struct client* client_connect(struct bufferevent *bev);
#endif

这是client.c的源代码:

#include <event2/listener.h>
#include <event2/bufferevent.h>
#include <event2/buffer.h>

#include <arpa/inet.h>

#include <stdlib.h>
#include <stdio.h>
#include <errno.h>

struct client* client_connect(struct bufferevent *bev) { …