From owner-freebsd-hackers  Sat Jun  9  0:49:53 2001
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Date: Sat, 9 Jun 2001 00:49:40 -0700
From: Damien Neil <neild@misago.org>
To: hackers@FreeBSD.ORG
Subject: Re: free() and const warnings
Message-ID: <20010609004940.B50335@misago.org>
References: <20010607195634.I724@ringworld.oblivion.bg> <XFMail.010607102051.jhb@FreeBSD.org> <20010607124729.B4940@shade.nectar.com>
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In-Reply-To: <20010607124729.B4940@shade.nectar.com>; from n@nectar.com on Thu, Jun 07, 2001 at 12:47:30PM -0500
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On Thu, Jun 07, 2001 at 12:47:30PM -0500, Jacques A. Vidrine wrote:
> C99 says of uintptr_t only that for any valid pointer p, the following
> is true:
> 
>     (void *)(uintptr_t)p == (void *)p
> 
> Likewise for  intptr_t.  I read  that as  covering both code  and data
> pointers.

C89, at least, does not guarantee that you can convert between code
and data pointers.  I believe the same holds for C99.

                     - Damien

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