编写消息队列传送结构体数据
#include<sys/utsname.h>#include <sys/types.h>
#include <sys/ipc.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <sys/msg.h>
#include <csapp.h>
typedef struct STU{
char name ;
int age;
float height;
}*st;
typedef struct {
long int my_msg_type;
st info;
}my_msg_st;
int main(){
int msgid;
struct my_msg_st some_data;
struct STU stu;
msgid = msgget((key_t)1234, 0666 | IPC_CREAT);
if (msgid == -1){
fprintf(stderr,"msgget failed with : %d\n",errno);
exit(EXIT_FAILURE);
}
strcpy(stu.name,"张三");
stu.age = 20;
stu.height = 1.75;
some_data.info = &stu;
some_data.my_msg_type = 1;
if (msgsnd(msgid,(void *)&some_data,sizeof(some_data), 0) == -1 ){
fprintf(stderr,"msgsnd failed\n");
exit(EXIT_FAILURE);
}
exit(EXIT_FAILURE);
}
在Ubuntu14.04.4系统下GCC 出现以下错误：
请求解答一下，今天一天都在解决这个问题，可以说找不到解决的方法
求助啊
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