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-rw-r--r--ctype/ctype.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/ctype/ctype.h b/ctype/ctype.h
index 37e2cbeb35..5f732d2340 100644
--- a/ctype/ctype.h
+++ b/ctype/ctype.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 93, 95, 96, 97 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 93, 95, 96, 97, 98 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
@@ -39,9 +39,9 @@ __BEGIN_DECLS
# include <endian.h>
# if __BYTE_ORDER == __BIG_ENDIAN
-# define _ISbit(bit) (1 << bit)
+# define _ISbit(bit) (1 << (bit))
# else /* __BYTE_ORDER == __LITTLE_ENDIAN */
-# define _ISbit(bit) (bit < 8 ? ((1 << bit) << 8) : ((1 << bit) >> 8))
+# define _ISbit(bit) ((bit) < 8 ? ((1 << (bit)) << 8) : ((1 << (bit)) >> 8))
# endif
enum