From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#47518: 28.0.50; gcc 5.5.0 -Wstrict-overflow warning in INT_ADD_WRAPV Date: Sat, 08 May 2021 14:08:26 +0200 Message-ID: <8735uxsa11.fsf@gnus.org> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30147"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 47518@debbugs.gnu.org To: David Fussner Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat May 08 14:09:25 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lfLls-0007g2-RI for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 08 May 2021 14:09:24 +0200 Original-Received: from localhost ([::1]:53888 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lfLlr-0005qk-3x for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 08 May 2021 08:09:23 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46374) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lfLlW-0005q9-Mn for bug-gnu-emacs@gnu.org; Sat, 08 May 2021 08:09:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:38324) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lfLlW-0005da-9R for bug-gnu-emacs@gnu.org; Sat, 08 May 2021 08:09:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lfLlW-0002QI-4h for bug-gnu-emacs@gnu.org; Sat, 08 May 2021 08:09:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 08 May 2021 12:09:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47518 X-GNU-PR-Package: emacs Original-Received: via spool by 47518-submit@debbugs.gnu.org id=B47518.16204757179296 (code B ref 47518); Sat, 08 May 2021 12:09:02 +0000 Original-Received: (at 47518) by debbugs.gnu.org; 8 May 2021 12:08:37 +0000 Original-Received: from localhost ([127.0.0.1]:49866 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lfLl7-0002Ps-Kw for submit@debbugs.gnu.org; Sat, 08 May 2021 08:08:37 -0400 Original-Received: from quimby.gnus.org ([95.216.78.240]:42620) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lfLl6-0002Pl-5l for 47518@debbugs.gnu.org; Sat, 08 May 2021 08:08:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=z4aiowpKM203jo2PwQLP35Lq4yxm0jaQw290msEs4VE=; b=VcQIqxUcWGO9fSdK98cgJlEy8D iiW1fFUlTnq956NejdkHSQOMQZajVIXLwBDpge2Fz48wLFGotIAKY0JPcjoqXyOsGYrLt366dEEFS EnkOUkcbkw/i31unAwy+PcIdF7sq/be+cWPyuEAcByeinM0PUXixIECpgGttAy0Q+x0c=; Original-Received: from cm-84.212.220.105.getinternet.no ([84.212.220.105] helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lfLkx-00043Z-TX; Sat, 08 May 2021 14:08:30 +0200 X-Now-Playing: King Crimson's _In the Court of the Crimson King (1)_: "Epitaph (Including March For No Reason and Tomorrow And Tomorrow)" In-Reply-To: (David Fussner's message of "Wed, 31 Mar 2021 11:12:29 +0100") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:206001 Archived-At: David Fussner writes: > Since late December, when compiling master with gcc 5.5.0 on a 32-bit > Slackware install I see multiple warnings like the following. _All_ > of the messages involve INT_ADD_WRAPV: > > In file included from dispnew.c:27:0: > lisp.h: In function 'modiff_incr': > lisp.h:3505:3: warning: assuming signed overflow does not occur when > assuming that (X + c) > X is always true [-Wstrict-overflow] > bool modiff_overflow = INT_ADD_WRAPV (a0, 1, a); > ^ > (This last from every .c file that includes lisp.h.) It's to be expected to get warnings in older gcc versions for a variety of things -- and gcc 5.5.0 is five years old. We don't have a strict policy for this in Emacs, but it's been common to disregard warnings from gcc versions that are a few years old. So I'm closing this bug report. If somebody thinks that this is something that should be worked on, please respond to the debbugs address and we'll reopen. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no