linux-kernel - Re: lots of code could be simplified by using ARRAY

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Message-ID: <653402b90612141516w46e4a623u21ba34f9664f392c@mail.gmail.com>
Date:	Fri, 15 Dec 2006 00:16:01 +0100
From:	"Miguel Ojeda" <maxextreme@...il.com>
To:	"Robert P. J. Day" <rpjday@...dspring.com>
Cc:	"Linux kernel mailing list" <linux-kernel@...r.kernel.org>
Subject: Re: lots of code could be simplified by using ARRAY_SIZE()

On 12/13/06, Robert P. J. Day <rpjday@...dspring.com> wrote:
>
>   there are numerous places throughout the source tree that apparently
> calculate the size of an array using the construct
> "sizeof(fubar)/sizeof(fubar[0])". see for yourself:
>
>   $ grep -Er "sizeof\((.*)\) ?/ ?sizeof\(\1\[0\]\)" *
>
> but we already have, from "include/linux/kernel.h":
>
>   #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

Maybe *(x) instead of (x)[0]?

-- 
Miguel Ojeda
http://maxextreme.googlepages.com/index.htm
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