线程属性-分离

#ifndef __IO_H__#define __IO_H__#include <stdio.h>#include <stdlib.h>#include <string.h>#include <errno.h>#include <fcntl.h>#include <unistd.h>#include <pthread.h>#endif#include "io.h"void* thread_fun(void* arg){    int i = 0;    while (i++ < 10)    {        printf("i=%d\n", i);        sleep(1);    }    pthread_exit((void*)0);}int main(int argc, char const *argv[]){    pthread_t th;    pthread_attr_t attr;    pthread_attr_init(&attr);    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);    pthread_create(&th, &attr, thread_fun, NULL);    /*pthread_attr_destroy(&attr);*/    int state;    pthread_attr_getdetachstate(&attr, &state);    if (state == PTHREAD_CREATE_DETACHED) {        printf("set detach ok!\n");    } else {        printf("set detach error!\n");    }    if(pthread_join(th, NULL)){        fprintf(stderr, "join:success!%s\n", strerror(errno));    }    pthread_attr_destroy(&attr);    return 0;}