diff lib/same-inode.h @ 12069:1a57a12a6e7f

same-inode: revert prior change; it is not yet ready This reverts commit b5eb8386645bf1bcfafa63c729ff9a86454def87. * NEWS: Undo mention of this change. * lib/same-inode.h (same-inode.h): Undo tri-state change. * lib/cycle-check.h (CYCLE_CHECK_REFLECT_CHDIR_UP): Update caller. * lib/cycle-check.c (cycle_check): Likewise. * lib/same.c (same_name): Likewise. * lib/at-func2.c (at_func2): Likewise. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Thu, 24 Sep 2009 05:51:28 -0600
parents fbde8fb7f644
children b5e42ef33b49
line wrap: on
line diff
--- a/lib/same-inode.h
+++ b/lib/same-inode.h
@@ -1,6 +1,6 @@
 /* Determine whether two stat buffers refer to the same file.
 
-   Copyright (C) 2006, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2006 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
@@ -18,18 +18,8 @@
 #ifndef SAME_INODE_H
 # define SAME_INODE_H 1
 
-/* Perform a tri-state query on whether STAT_BUF_1 and STAT_BUF_2
-   represent the same file.  Return 1 for equal, 0 for distinct, and
-   -1 for indeterminate (the latter is generally possible only on
-   mingw).  Algorithms that use this macro must be prepared to handle
-   the indeterminate case without wrong results.  For example, if an
-   optimization is possible if two files are the same but unsafe if
-   distinct, use SAME_INODE()==1; whereas for an optimization that is
-   possible only for distinct files, use !SAME_INODE().  */
-
 # define SAME_INODE(Stat_buf_1, Stat_buf_2) \
-   (((Stat_buf_1).st_ino == (Stat_buf_2).st_ino         \
-     && (Stat_buf_1).st_dev == (Stat_buf_2).st_dev)     \
-    ? 1 - 2 * !(Stat_buf_1).st_ino : 0)
+   ((Stat_buf_1).st_ino == (Stat_buf_2).st_ino \
+    && (Stat_buf_1).st_dev == (Stat_buf_2).st_dev)
 
 #endif