[src/trunk]: src/bin/sh parenthesize for safety.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3818822af31b
branches:  trunk
changeset: 344187:3818822af31b
user:      christos <christos%NetBSD.org@localhost>
date:      Wed Mar 16 19:02:26 2016 +0000

description:
parenthesize for safety.

diffstat:

 bin/sh/syntax.h |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r e632c5c3ec8e -r 3818822af31b bin/sh/syntax.h
--- a/bin/sh/syntax.h   Wed Mar 16 18:58:34 2016 +0000
+++ b/bin/sh/syntax.h   Wed Mar 16 19:02:26 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: syntax.h,v 1.5 2016/03/16 17:01:39 christos Exp $      */
+/*     $NetBSD: syntax.h,v 1.6 2016/03/16 19:02:26 christos Exp $      */
 
 /*-
  * Copyright (c) 1991, 1993
@@ -68,7 +68,7 @@
 
 /* These defines assume that the digits are contiguous (which is guaranteed) */
 #define        is_digit(c)     ((unsigned)((c) - '0') <= 9)
-#define sh_ctype(c)    (is_type+SYNBASE)[(int)c]
+#define sh_ctype(c)    (is_type+SYNBASE)[(int)(c)]
 #define        is_alpha(c)     (sh_ctype(c) & (ISUPPER|ISLOWER))
 #define        is_name(c)      (sh_ctype(c) & (ISUPPER|ISLOWER|ISUNDER))
 #define        is_in_name(c)   (sh_ctype(c) & (ISUPPER|ISLOWER|ISUNDER|ISDIGIT))