/* Determine whether two stat buffers are known to refer to the same file.

   Copyright (C) 2006, 2009-2017 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef SAME_INODE_H

# define SAME_INODE_H 1

# include <sys/types.h>

# if defined __VMS && __CRTL_VER < 80200000

#  define SAME_INODE(a, b)             \

    ((a).st_ino[0] == (b).st_ino[0]    \

     && (a).st_ino[1] == (b).st_ino[1] \

     && (a).st_ino[2] == (b).st_ino[2] \

     && (a).st_dev == (b).st_dev)

# elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__

   /* Native Windows.  */

#  if _GL_WINDOWS_STAT_INODES

    /* stat() and fstat() set st_dev and st_ino to 0 if information about

       the inode is not available.  */

#   define SAME_INODE(a, b) \

     (!((a).st_ino == 0 && (a).st_dev == 0) \

      && (a).st_ino == (b).st_ino && (a).st_dev == (b).st_dev)

#  else

    /* stat() and fstat() set st_ino to 0 always.  */

#   define SAME_INODE(a, b) 0

#  endif

# else

#  define SAME_INODE(a, b)    \

    ((a).st_ino == (b).st_ino \

     && (a).st_dev == (b).st_dev)

# endif

#endif