From owner-freebsd-current@FreeBSD.ORG  Mon Jul 14 11:34:36 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 208A737B401
	for <freebsd-current@freebsd.org>;
	Mon, 14 Jul 2003 11:34:36 -0700 (PDT)
Received: from puffin.mail.pas.earthlink.net (puffin.mail.pas.earthlink.net
	[207.217.120.139])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 1CE5D43F3F
	for <freebsd-current@freebsd.org>;
	Mon, 14 Jul 2003 11:34:35 -0700 (PDT)
	(envelope-from tlambert2@mindspring.com)
Received: from user-38ldu3s.dialup.mindspring.com ([209.86.248.124]
	helo=mindspring.com)
	by puffin.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128)
	(Exim 3.33 #1)	id 19c89b-0002Am-00; Mon, 14 Jul 2003 11:34:28 -0700
Message-ID: <3F12F776.67B897AF@mindspring.com>
Date: Mon, 14 Jul 2003 11:33:26 -0700
From: Terry Lambert <tlambert2@mindspring.com>
X-Mailer: Mozilla 4.79 [en] (Win98; U)
X-Accept-Language: en
MIME-Version: 1.0
To: David Leimbach <leimy2k@mac.com>
References: <20030712155333.GA79322@crodrigues.org>
	<BEDC8C48-B4DC-11D7-BE3B-0003937E39E0@mac.com>
	<20030713031312.GA89014@crodrigues.org>
	<401FAE5E-B535-11D7-BE3B-0003937E39E0@mac.com>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a43c6483f9dbc795a822f0c104425d7705350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c
cc: Craig Rodrigues <rodrigc@crodrigues.org>
cc: Alexander Kabaev <kabaev@mail.ru>
cc: freebsd-current@freebsd.org
Subject: Re: GCC 3.3.1, new warnings with <limits>
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 14 Jul 2003 18:34:36 -0000

David Leimbach wrote:
> This is a good policy in general, however, one could easily argue that
> what is trying to be determined with signedness  and such being
> less-than-compared
> to 0 isn't really a big deal and possibly the only way to implement this
> numeric_limits<T>::digits thing without any type introspection which
> C++ currently
> lacks.
> 
> The following would work for example in a template function:

[ ... ]

Gcc needs a #pragma to disable specific warnings as a one-shot.

This was discussed in detail on the GCC mailing list.

-- Terry