我有这个问题,看不出错误在哪里,所以我希望有人可以帮忙解决它。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的来源:
#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) {
// Client info
struct client *c = (struct client*)malloc(sizeof(struct client));
if (c == NULL) {
// error allocating memory
} else {
if (client_head == NULL) {
// initialize list addresses
c->prev = c->next = NULL;
// set connection id
c->id = 0;
} else {
// set list addresses
client_head->next = c;
c->prev = client_head;
c->next = NULL;
client_head = c;
// set connection id
c->id = (c->prev->id + 1);
}
// initialize user vars
c->bev = bev;
}
return c;
}
谢谢!
答案 0 :(得分:6)
您忘记了#include "client.h"
,因此struct client
中未知client.c
的定义,因此struct client
表示不完整的类型。
答案 1 :(得分:2)
很抱歉,但是你需要包含client.h,编译器只会编译他被告知的内容......
答案 2 :(得分:0)
我没有看到
#include "client.h"
你的.c文件中的