From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: GCC/clang warning for Complex integers? Date: Mon, 01 Jul 2024 14:55:59 +0300 Message-ID: <86bk3hfhrk.fsf@gnu.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2341"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Gerd =?iso-8859-1?Q?M=F6llmann?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Jul 01 13:56:48 2024 Return-path: Envelope-to: ged-emacs-devel@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 1sOFeJ-0000PT-Mp for ged-emacs-devel@m.gmane-mx.org; Mon, 01 Jul 2024 13:56:47 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sOFdc-0004JI-Lf; Mon, 01 Jul 2024 07:56:04 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sOFda-0004Hn-Vf for emacs-devel@gnu.org; Mon, 01 Jul 2024 07:56:03 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sOFda-0004OV-NF; Mon, 01 Jul 2024 07:56:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=cuE1HTS6OANQG3duRnpHAkdXHY2MxLE5D3hWh0tQpug=; b=kdyjlVWgxZi76mu8+4A6 JhJeu75NXg4b4Zmx9mmqKpFOf0Y498CSCbbXzLMes//vG8Mk2n/egs6905aatgSueDMgE76M0XBu9 GUllbqKJGST+XuInCMTo3XJkY8m3taOjyTHikDKCABKwm3FofpPB9FUtQePsgGD/Z5I490YwleuU8 E2mugJh/tW5Ni/h4oV5FAHaOooHTQctUedfgmK4Wqenij8eSbbBHZYlnN/KD8UYdFPOSQSCxa2Rv0 OOmrkCRxYovOMxFTlI2Gl/kMsVA4fzrXKlPLMCrZ0XuQ+lA3Xu4TQj6Cl/LyD+tTIBUMGwuLRUZ+d tORnGpY4HkpzJg==; In-Reply-To: (message from Gerd =?iso-8859-1?Q?M=F6llmann?= on Mon, 01 Jul 2024 10:40:46 +0200) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:321012 Archived-At: > From: Gerd Möllmann > Date: Mon, 01 Jul 2024 10:40:46 +0200 > > Does someone know how to get a warning for using imaginary numbers like > so (typo)? > > unsigned char *data = alloc (nbytes + 1i, IGC_OBJ_STRING_DATA); > > That compiles without a warning for me, and one is in for a surprise. I > can't find the compiler flag that makes that a warning or error (tried with > clang 18 and GCC 14). Try compiling with -std=c99. (Caveat: you might get gobs of warnings that way.)