From: Bruce Ellis <bruce.ellis@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] 6c bug?
Date: Tue, 28 Feb 2012 18:14:31 +1100 [thread overview]
Message-ID: <CAJQxxw=AN0dUGdu_sbdOc2Vkew3BXWPhvTOAxKKLgjHGxpxVjw@mail.gmail.com> (raw)
In-Reply-To: <8f46f79042d0cf94c0309c883a046dd6@brasstown.quanstro.net>
what values of p[1] do you expect the test to be of use?
On 28 February 2012 15:40, erik quanstrom <quanstro@quanstro.net> wrote:
> for p = uchar*, Nbus==256,
>
> if((uint)p[1] >= Nbus){
>
> generates
>
> warning: ./mp.c:212 useless or misleading comparison: UCHAR >= 0x100
>
> i'm pretty sure that 6c is incorrectly issuing the diagnostic before
> applying the cast. (the cast is there to shut the compiler up.)
>
> - erik
>
--
Don't meddle in the mouth -- MVS (0416935147, +1-513-3BRUCEE)
next prev parent reply other threads:[~2012-02-28 7:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-28 4:40 erik quanstrom
2012-02-28 7:14 ` Bruce Ellis [this message]
[not found] ` <CAJQxxw=AN0dUGdu_sbdOc2Vkew3BXWPhvTOAxKKLgjHGxpxVjw@mail.gmail.c>
2012-02-28 7:20 ` erik quanstrom
2012-02-28 9:22 ` Bruce Ellis
[not found] ` <CAJQxxwka-EGOgyTV-xBB1YOWTXLzyL=qtRWDkfz0NmD82koFpQ@mail.gmail.c>
2012-02-28 18:37 ` erik quanstrom
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