struct stat 的用法

//! 需要包含de头文件
#include <sys/types.h>
#include <sys/stat.h>
 
int stat(const char *filename, struct stat *buf); //! prototype,原型
 
struct stat
{
    dev_t       st_dev;     /* ID of device containing file -文件所在设备的ID*/
    ino_t       st_ino;     /* inode number -inode节点号*/
    mode_t      st_mode;    /* protection -保护模式?*/
    nlink_t     st_nlink;   /* number of hard links -链向此文件的连接数(硬连接)*/
    uid_t       st_uid;     /* user ID of owner -user id*/
    gid_t       st_gid;     /* group ID of owner - group id*/
    dev_t       st_rdev;    /* device ID (if special file) -设备号，针对设备文件*/
    off_t       st_size;    /* total size, in bytes -文件大小，字节为单位*/
    blksize_t   st_blksize; /* blocksize for filesystem I/O -系统块的大小*/
    blkcnt_t    st_blocks;  /* number of blocks allocated -文件所占块数*/
    time_t      st_atime;   /* time of last access -最近存取时间*/
    time_t      st_mtime;   /* time of last modification -最近修改时间*/
    time_t      st_ctime;   /* time of last status change - */
};

#include <iostream>
#include <ctime>
#include <sys/types.h>
#include <sys/stat.h>
 
using namespace std;
 
int
main ()
{
    struct stat buf;
    int result;
    result = stat ("./Makefile", &buf);
    if (result != 0)
      {
	  perror ("Failed ^_^");
      }
    else
      {
	  //! 文件的大小，字节为单位
	  cout << "size of the file in bytes: " << buf.st_size << endl;
	  //! 文件创建的时间
	  cout << "time of creation of the file: " << ctime (&buf.st_ctime) <<
	      endl;
	  //! 最近一次修改的时间
	  cout << "time of last modification of the file: " <<
	      ctime (&buf.st_mtime) << endl;
	  //! 最近一次访问的时间
	  cout << "time of last access of the file: " << ctime (&buf.st_atime)
	      << endl;
      }
    return 0;
}

$ ./test
size of the file in bytes: 36
time of creation of the file: Sun May 24 18:38:10 2009
time of last modification of the file: Sun May 24 18:38:10 2009
time of last access of the file: Sun May 24 18:38:13 2009