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-rw-r--r--tests/filename.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/tests/filename.h b/tests/filename.h
index e353363e..e37a373e 100644
--- a/tests/filename.h
+++ b/tests/filename.h
@@ -1,5 +1,5 @@
/* Basic filename support macros.
- Copyright (C) 2001-2025 Free Software Foundation, Inc.
+ Copyright (C) 2001-2026 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -49,7 +49,10 @@ extern "C" {
any notion of "current directory".
IS_RELATIVE_FILE_NAME(Filename)
tests whether Filename may be concatenated
- to a directory filename.
+ to a directory filename to yield the name
+ of a file relative to that directory.
+ Watch out: IS_RELATIVE_FILE_NAME ("") is 1
+ even though "" is not a relative file name.
Note: On native Windows, OS/2, DOS, "c:" is neither an absolute nor a
relative file name!
IS_FILE_NAME_WITH_DIR(Filename) tests whether Filename contains a device