From owner-freebsd-current Wed May 10 12:39:12 2000 Delivered-To: freebsd-current@freebsd.org Received: from anchor-post-31.mail.demon.net (anchor-post-31.mail.demon.net [194.217.242.89]) by hub.freebsd.org (Postfix) with ESMTP id 0738837B92B; Wed, 10 May 2000 12:39:04 -0700 (PDT) (envelope-from dfr@nlsystems.com) Received: from nlsys.demon.co.uk ([158.152.125.33] helo=herring.nlsystems.com) by anchor-post-31.mail.demon.net with esmtp (Exim 2.12 #1) id 12pcJw-000Pj0-0V; Wed, 10 May 2000 20:39:00 +0100 Received: from salmon.nlsystems.com (salmon.nlsystems.com [10.0.0.3]) by herring.nlsystems.com (8.9.3/8.8.8) with ESMTP id UAA70097; Wed, 10 May 2000 20:42:30 +0100 (BST) (envelope-from dfr@nlsystems.com) Date: Wed, 10 May 2000 20:43:44 +0100 (BST) From: Doug Rabson To: Simon Shapiro Cc: freebsd-current@freebsd.org, obrien@freebsd.org, Mike Smith Subject: Re: One more question (different now) In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, 10 May 2000, Simon Shapiro wrote: > > On 10-May-00 Doug Rabson wrote: > > On Tue, 9 May 2000, Mike Smith wrote: > > > >> > On Tue, May 09, 2000 at 04:27:10PM -0700, Mike Smith wrote: > >> > > The only answer I've seen for this one is to kick, hard, whoever it was > >> > > that added -Wcast-qual to the kernel options. > >> > > >> > Or we should just delete it from the options. > >> > >> Ugh. I don't actually like that, because it serves a valid purpose. > >> What irritates me mostly is just that there is no way of casting a > >> volatile object into a non-volatile type, so you can't implement any sort > >> of conditional volatility exclusion. > > > > You can suppress the warning if you cast to uintptr_t first. Pretty ugly > > though. > > It actually worked! Now I will go and see what this uintptr_t > actually is :-) Its an unsigned integer type which is the same size as a pointer (i.e. its safe to cast a pointer to uintptr_t without losing information). -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 20 8442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message