From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2088 invoked by alias); 29 Aug 2014 09:12:06 -0000 Mailing-List: contact gcc-help-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-help-owner@gcc.gnu.org Received: (qmail 2076 invoked by uid 89); 29 Aug 2014 09:12:04 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-la0-f53.google.com Received: from mail-la0-f53.google.com (HELO mail-la0-f53.google.com) (209.85.215.53) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Fri, 29 Aug 2014 09:12:03 +0000 Received: by mail-la0-f53.google.com with SMTP id s18so2404120lam.12 for ; Fri, 29 Aug 2014 02:11:59 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.152.203.167 with SMTP id kr7mr7139324lac.75.1409303519565; Fri, 29 Aug 2014 02:11:59 -0700 (PDT) Received: by 10.112.219.200 with HTTP; Fri, 29 Aug 2014 02:11:59 -0700 (PDT) In-Reply-To: References: Date: Fri, 29 Aug 2014 09:12:00 -0000 Message-ID: Subject: Re: odd behavior From: Jonathan Wakely To: =?UTF-8?Q?J=C4=99drzej_Dudkiewicz?= Cc: Michael Williamson , gcc-help Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-IsSubscribed: yes X-SW-Source: 2014-08/txt/msg00137.txt.bz2 On 29 August 2014 06:37, J=C4=99drzej Dudkiewicz wrote: > I've seen it few times, but was always my fault and section was in > fact compiled. Try preprocessing your input file using -E option and > check if it really isn't used. No, it definitely happens in code that isn't compiled, try it: #if 0 const char* s =3D "; #endif int main() { } x.c:2:17: warning: missing terminating " character [enabled by default] const char* s =3D "; ^