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Date:      Wed, 09 Oct 2002 14:20:29 -0400 (EDT)
From:      John Baldwin <jhb@FreeBSD.org>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        Peter Wemm <peter@wemm.org>, freebsd-arch@FreeBSD.ORG, Andrew Gallatin <gallatin@cs.duke.edu>
Subject:   Re: lp64 vs lp32 printf
Message-ID:  <XFMail.20021009142029.jhb@FreeBSD.org>
In-Reply-To: <XFMail.20021009140419.jhb@FreeBSD.org>

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On 09-Oct-2002 John Baldwin wrote:
> 
> On 09-Oct-2002 Andrew Gallatin wrote:
>> 
>> Peter Wemm writes:
>>  > > 
>>  > > Um, using intmax_t to print size_t's would be incorrect, since it is
>>  > > signed.  Using uintmax_t would be bloat.  Very few typedefed types
>>  > > need the full bloat of [u]intmax_t, and size_t is unlikely to become
>>  > > one of them before casting it to uintmax_t to print it becomes a style
>>  > > bug in the kernel too (when %z is implemented).
>>  > 
>>  > Bring it on!  The sooner %z gets here the better.  The only problem is that
>>  > gcc has been taught that %z means something different in the kernel. :-(
>> 
>> Where is gcc taught these things?  Can we update it?
> 
> We should be able to change the kernel %z to some other weird letter.

Actually, nothing in the kernel uses %z.  It is a version of %x that
allows for a sign (e.g. -0x10 instead of 0xfffffff0, or +0x10).

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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