[src/trunk]: src/share/misc C99: Suggest using narrow scopes for loop indices.

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

details:   https://anonhg.NetBSD.org/src/rev/b253b998eb8f
branches:  trunk
changeset: 372850:b253b998eb8f
user:      jkoshy <jkoshy%NetBSD.org@localhost>
date:      Fri Dec 30 17:02:31 2022 +0000

description:
C99: Suggest using narrow scopes for loop indices.

diffstat:

 share/misc/style |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (31 lines):

diff -r d76e7ea0155b -r b253b998eb8f share/misc/style
--- a/share/misc/style  Fri Dec 30 15:41:35 2022 +0000
+++ b/share/misc/style  Fri Dec 30 17:02:31 2022 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: style,v 1.65 2022/12/29 18:23:37 jkoshy Exp $ */
+/* $NetBSD: style,v 1.66 2022/12/30 17:02:31 jkoshy Exp $ */
 
 /*
  * The revision control tag appears first, with a blank line after it.
@@ -30,7 +30,7 @@
 #include <sys/cdefs.h>
 __COPYRIGHT("@(#) Copyright (c) 2008\
  The NetBSD Foundation, inc. All rights reserved.");
-__RCSID("$NetBSD: style,v 1.65 2022/12/29 18:23:37 jkoshy Exp $");
+__RCSID("$NetBSD: style,v 1.66 2022/12/30 17:02:31 jkoshy Exp $");
 
 /*
  * VERY important single-line comments look like this.
@@ -259,9 +259,11 @@
         *
         * Braces around single-line bodies are optional; use discretion.
         *
+        * Use narrow scopes for loop variables where possible.
+        *
         * Forever loops are done with for's, not while's.
         */
-       for (p = buf; *p != '\0'; ++p)
+       for (char *p = buf; *p != '\0'; ++p)
                continue;               /* Explicit no-op */
        for (;;)
                stmt;