# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1640802603 -3600
# Node ID 81f0d5a958b9b7c2c2500646664f7be44863ee9c
# Parent  6a6a985ee1d57be21d2aa67b0c7c9cbfeec8e96b
patch 8.2.3939: MS-Windows: fnamemodify('', ':p') does not work

Commit: https://github.com/vim/vim/commit/5a664fe57fe7ba65a771bc95ef1c205e4db193b7
Author: Yegappan Lakshmanan <yegappan@yahoo.com>
Date:   Wed Dec 29 18:16:21 2021 +0000

    patch 8.2.3939: MS-Windows: fnamemodify('', ':p') does not work

    Problem:    MS-Windows: fnamemodify('', ':p') does not work.
    Solution:   Do not consider an empty string a full path. (Yegappan Lakshmanan,
                closes #9428, closes #9427)

diff --git a/src/os_mswin.c b/src/os_mswin.c
--- a/src/os_mswin.c
+++ b/src/os_mswin.c
@@ -390,7 +390,7 @@ mch_isFullName(char_u *fname)
     // the same as the name or mch_FullName() fails.  However, this has quite a
     // bit of overhead, so let's not do that.
     if (*fname == NUL)
-	return TRUE;
+	return FALSE;
     return ((ASCII_ISALPHA(fname[0]) && fname[1] == ':'
 				      && (fname[2] == '/' || fname[2] == '\\'))
 	    || (fname[0] == fname[1] && (fname[0] == '/' || fname[0] == '\\')));
diff --git a/src/testdir/test_fnamemodify.vim b/src/testdir/test_fnamemodify.vim
--- a/src/testdir/test_fnamemodify.vim
+++ b/src/testdir/test_fnamemodify.vim
@@ -32,6 +32,7 @@ func Test_fnamemodify()
   call assert_equal('fb2.tar.gz', fnamemodify('abc.fb2.tar.gz', ':e:e:e'))
   call assert_equal('fb2.tar.gz', fnamemodify('abc.fb2.tar.gz', ':e:e:e:e'))
   call assert_equal('tar', fnamemodify('abc.fb2.tar.gz', ':e:e:r'))
+  call assert_equal(getcwd(), fnamemodify('', ':p:h'))
 
   let cwd = getcwd()
   call chdir($HOME)
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3939,
+/**/
     3938,
 /**/
     3937,