From: Richard M. Stallman <rms@gnu.org>
Date: Tue, 29 Apr 1997 00:51:47 +0000 (+0000)
Subject: (Fexpand_file_name): Check length > 0 when necessary.
X-Git-Tag: emacs-20.1~2353
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=15fc2f8c1ff669907dae2ecc6a741b79a0b39ad7;p=emacs.git

(Fexpand_file_name): Check length > 0 when necessary.
---

diff --git a/src/fileio.c b/src/fileio.c
index a05dbd5f221..6560f28bb70 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -1251,7 +1251,7 @@ See also the function `substitute-in-file-name'.")
       /* Get rid of any slash at the end of newdir, unless newdir is
        just // (an incomplete UNC name). */
       length = strlen (newdir);
-      if (IS_DIRECTORY_SEP (newdir[length - 1])
+      if (length > 0 && IS_DIRECTORY_SEP (newdir[length - 1])
 #ifdef WINDOWSNT
 	  && !(length == 2 && IS_DIRECTORY_SEP (newdir[0]))
 #endif