#include<stdio.h>
#include<fcntl.h>
#include<errno.h>

main()
{
	int fd;
	if((fd=open("nodata", O_RDONLY))==-1){
	if(errno==ENOENT) printf("nodata is not exist\n");
	else
	printf("unexpected error : errno = %d =n", errno);
	exit(1);
	}
	exit(0);	
}