我有一个简单的参数列表.我只是想把它打印到stdout,但我在打印"结束"之前得到了有线输出.有谁知道空行和不可读的字符来自哪里?
输出:
start
hello
hello2
hello3
hello 4
UH??AWAVAUATE1?S1?H??HH?E?
end
void printTest(const char* msg, ...) {
va_list ap;
int i;
const char* curMsg=0;
va_start(ap, msg);
printf("start\n");
for(curMsg= msg ; curMsg!=0 ; curMsg = va_arg(ap, const char*)){
printf("%s\n", curMsg);
}
printf("end\n");
va_end(ap);
}
int main(){
printTest("hello", "hello2", "hello3", "hello 4");
return 0;
}
Run Code Online (Sandbox Code Playgroud) struct addrinfo *myAddrinfo, *curMyAddrinfo, hint;
memset(&hint, 0, sizeof(struct addrinfo));
hint.ai_family = AF_INET;
hint.ai_protocol = AI_PASSIVE;
hint.ai_socktype = SOCK_STREAM;
const int code = getaddrinfo(NULL, SERVER_PORT, &hint, &myAddrinfo);
if ((code) != 0) {
printf("getaddrinfo error occours: %s ",
gai_strerror(code));
return 1;
}
Run Code Online (Sandbox Code Playgroud)
这给出了错误:如果我注释掉hint.ai_protocol = AI_PASSIVE;它,它将通过:“不支持ai_socktype” ,但是我想知道为什么会发生?
谢谢你的时间