pthread_t ntid;
void printids(const char *s){
pid_t pid;
pthread_t tid;
pid = getpid();
tid = pthread_self();
printf("%s pid %u tid %u (0x%x)\n", s, (unsigned int)pid, (unsigned int)tid, (unsigned int)tid);
return;
}
void * thr_fn(void *arg){
printids("new thread: ");
return ((void *)0);
}
int main(void) {
int err;
err = pthread_create(&ntid, NULL, thr_fn, NULL);
if(err!=0)
printf("cannot create thread: %s\n", strerror(err));
printids("main thread: ");
sleep(1);
return EXIT_SUCCESS;
}
报错:undefined reference to `pthread_create',这个是为什么,怎么解决,多谢
gcc 版本 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)
ubuntu 7.10
[问题]请教:创建线程出错
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- 帖子: 8
- 注册时间: 2007-07-02 21:28