From: Jesper Juhl <juhl-lkml@dif.dk>
To: "Richard B. Johnson" <linux-os@analogic.com>
Cc: Jesper Juhl <juhl-lkml@dif.dk>, Andrew Morton <akpm@osdl.org>,
David Mosberger-Tang <davidm@hpl.hp.com>,
Stephane Eranian <eranian@hpl.hp.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [resend][PATCH] avoid signed vs unsigned comparison in efi_range_is_wc()
Date: Thu, 16 Jun 2005 23:07:34 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.62.0506162306300.2477@dragon.hyggekrogen.localhost> (raw)
In-Reply-To: <Pine.LNX.4.61.0506161629220.3712@chaos.analogic.com>
On Thu, 16 Jun 2005, Richard B. Johnson wrote:
>
> Well long and int are the same size on ix86. What you really need
> is 'size_t' for counters. That's the largest unsigned integer that
> will fit in a register on the target platform. It is platform-
> specific, therefore defined in stddef.h. No index or return-value
> is supposed to be larger than what can be represented in size_t,
> therefore it is a good type to use.
>
> Note that on 64-bit platforms, size_t will be larger than an unsigned
> int. This is good.
>
Good info, thanks Richard.
--
Jesper
next prev parent reply other threads:[~2005-06-16 21:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-16 20:21 [resend][PATCH] avoid signed vs unsigned comparison in efi_range_is_wc() Jesper Juhl
2005-06-16 20:41 ` Andrew Morton
2005-06-16 21:02 ` Jesper Juhl
2005-06-16 21:48 ` Arnd Bergmann
2005-06-16 22:24 ` Jesper Juhl
2005-06-16 20:45 ` Richard B. Johnson
2005-06-16 21:07 ` Jesper Juhl [this message]
2005-06-16 21:32 ` Arnd Bergmann
2005-06-16 21:01 ` David Mosberger
2005-06-20 17:00 ` Jesse Barnes
2005-06-17 0:25 Arnd Bergmann <arnd@arndb.de>
2005-06-17 17:04 ` Jesper Juhl
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