From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20971 invoked by alias); 29 Jun 2009 14:10:13 -0000 Received: (qmail 20961 invoked by uid 22791); 29 Jun 2009 14:10:12 -0000 X-SWARE-Spam-Status: No, hits=-1.3 required=5.0 tests=AWL,BAYES_00,SARE_MSGID_LONG40,SPF_NEUTRAL X-Spam-Check-By: sourceware.org Received: from fencepost.gnu.org (HELO fencepost.gnu.org) (140.186.70.10) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 29 Jun 2009 14:10:06 +0000 Received: from mail.gnu.org ([199.232.76.166]:41934 helo=mx10.gnu.org) by fencepost.gnu.org with esmtp (Exim 4.67) (envelope-from ) id 1MLHYZ-0007XB-Io for gcc@gnu.org; Mon, 29 Jun 2009 10:10:04 -0400 Received: from Debian-exim by monty-python.gnu.org with spam-scanned (Exim 4.60) (envelope-from ) id 1MLHYX-0006hp-FF for gcc@gnu.org; Mon, 29 Jun 2009 10:10:02 -0400 Received: from mail-ew0-f208.google.com ([209.85.219.208]:44836) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MLHYW-0006fK-PV for gcc@gnu.org; Mon, 29 Jun 2009 10:10:00 -0400 Received: by ewy4 with SMTP id 4so3014839ewy.42 for ; Mon, 29 Jun 2009 07:09:51 -0700 (PDT) MIME-Version: 1.0 Received: by 10.216.0.206 with SMTP id 56mr2048070web.102.1246284591050; Mon, 29 Jun 2009 07:09:51 -0700 (PDT) In-Reply-To: <84fc9c000906290613pe17c15ax879d1c52731e1b94@mail.gmail.com> References: <84fc9c000906290613pe17c15ax879d1c52731e1b94@mail.gmail.com> Date: Mon, 29 Jun 2009 16:25:00 -0000 Message-ID: <6c33472e0906290709q6d4db132u60df53018125499b@mail.gmail.com> Subject: Re: GCC feature req: warn when bitops exceed type size (was: conntrack untracked match is broken) From: =?ISO-8859-1?Q?Manuel_L=F3pez=2DIb=E1=F1ez?= To: Richard Guenther Cc: Jan Engelhardt , gcc@gnu.org Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized. X-IsSubscribed: yes Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2009-06/txt/msg00675.txt.bz2 2009/6/29 Richard Guenther : > On Mon, Jun 29, 2009 at 3:10 PM, Jan Engelhardt wrote: >> Hi gcc list, >> >> >> I am forwarding below's bugreport here(*), to implicitly make aware >> of a feature that I deem important to have in a future gcc. >> > > -Wconversion should say > > t.c:4: warning: conversion to =91unsigned char=92 from =91int=92 may alte= r its value =46rom GCC 4.4.0 it says: bug.c:6: warning: conversion to =91uint8_t=92 from =91int=92 may alter its = value More info abut new Wconversion: http://gcc.gnu.org/wiki/NewWconversion Cheers, Manuel.