220 39027 <228dda03-af94-47b5-a993-673032e86092@isocpp.org> article Path: news.gmane.org!.POSTED!not-for-mail From: Nicol Bolas Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: __COLUMN__ macro to parallel __LINE__ Date: Sun, 8 Jul 2018 20:17:04 -0700 (PDT) Lines: 59 Approved: news@gmane.org Message-ID: <228dda03-af94-47b5-a993-673032e86092@isocpp.org> References: <29394898-f878-45ad-b21c-b589e4a36caf@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_104193_715833981.1531106224596" X-Trace: blaine.gmane.org 1531106105 6217 195.159.176.226 (9 Jul 2018 03:15:05 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 9 Jul 2018 03:15:05 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCEKFTV6ZUMBBMNHRPNAKGQEZ64KCMQ@isocpp.org Mon Jul 09 05:15:01 2018 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-yb0-f199.google.com ([209.85.213.199]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fcMdg-0001Pr-Jf for gclcip-std-proposals@m.gmane.org; Mon, 09 Jul 2018 05:15:00 +0200 Original-Received: by mail-yb0-f199.google.com with SMTP id d6-v6sf18020893ybn.14 for ; Sun, 08 Jul 2018 20:17:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe; bh=W+zSTsCUScBmZBvEO8ppDpOESwpc+vKV6rAvVW8WE/8=; b=K+hcRRAxjNAMKZbH+AXyWYkZUWUkL1qobpjYLsrdlD4skaGf2U3innLViBPVIATrXA qK4OLQJHa2SnjfAmITRaBNmsK5S0BER/NNGhTC3gNsbu59CFpnWYhZ0mIlgrtlYX2wxM iTGauM+PXkUXZaAwZbVh8OdxbXo7L0w1XbcJYD+rGg5J0TXSw7GstH692aPISHAA5D1H nQkOR59rPmRHZSmR1hrww7BdxoArIS7C5/OChQnrBMZP9fFJvhIOdrOLxvPUdG5J3LPY PA0r+q2Y47K/uzrqBzBc+CthYt8EX1y7+0ioEfg7igkZoNXZ6GyOi7/bf0qr2yj4DfRq 2htQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :x-original-sender:reply-to:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe; bh=W+zSTsCUScBmZBvEO8ppDpOESwpc+vKV6rAvVW8WE/8=; b=Rn4fB83LQn46U8iRsmMw+koYWdyR2i1pgZWIOMKvHyivprQhykQb9X6CsglZfc0T3D Hr1UzP/nPRjHuEXHO+48B0wBiInFLjEZYvIG0+6BA4ZVVKzBwwa3G/M/8tVKuUELR6Gu sS2Gc1D40JjQdbWe8sgkmruE10Y0R5uEDwGxsOkH8QPjphsAmjcak9dn96gtz5dejAjc q1HXh6Shj84NDsneyFV2dIWvLPy8TXLtewu5hfO4dFwByhSQwvHLXoCViRTkSTt1pviy 38YZoU4bqJ4BdAGOrc9QTfXO/j9GTCSgcKoIv0+qEWPNHUu6lELXnIDNxj3jUyqWKGEc P+vQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:message-id:in-reply-to:references :subject:mime-version:x-original-sender:reply-to:precedence :mailing-list:list-id:x-spam-checked-in-group:list-post:list-help :list-archive:list-subscribe:list-unsubscribe; bh=W+zSTsCUScBmZBvEO8ppDpOESwpc+vKV6rAvVW8WE/8=; b=g2EEF0t272ArwfNP59fOocjzSPfJV/pOwMB1pVgJKGKe+BpNN+fZBmh9qZPbnObSlw 5uxKnpAhakdYFMECt/TzhaAxg1w4byI0FxFa81RT8H2sOmz+Ajysd82gGyJ7RfsTrNGM ldUizQI1KKcDlwihIUlgQ+CvirBkTeCS7O/OZWrtLH5cupvNVKAnvBpvzIthVHnogVdq sWLXOIITR8VAXR41LRBEHsdPgGhW8DusoVCZX3JeX7547ozL5jlI7K8cJmnu1iZQIbAN hGaHXWtiviYhi5cj+XA3W5e+5t3wz+hoosQCAhRq1V/wQ34n0qA5QUb5L3E0Jp6mtcr1 Yofw== X-Gm-Message-State: APt69E2B+5UTbw4pj+oJdATm0P55W9vfrmlsY96vy6ug2ByJLHexMIAU at3UaNbwfTQeASe3fG9i89ts1A== X-Google-Smtp-Source: AAOMgpdHF1UQzBCSwn2izHdVuzV8oUfdVJHxAM0hlEs/gOzC41Wa+cW3EnUpkz9EFT/UIDQLq7GT3w== X-Received: by 2002:a81:102:: with SMTP id 2-v6mr5607374ywb.128.1531106226466; Sun, 08 Jul 2018 20:17:06 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 2002:a25:2fd2:: with SMTP id v201-v6ls3441490ybv.10.gmail; Sun, 08 Jul 2018 20:17:05 -0700 (PDT) X-Received: by 2002:a25:8448:: with SMTP id r8-v6mr2656384ybm.2.1531106225070; Sun, 08 Jul 2018 20:17:05 -0700 (PDT) In-Reply-To: <29394898-f878-45ad-b21c-b589e4a36caf@isocpp.org> X-Original-Sender: jmckesson@gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:39027 Archived-At: ------=_Part_104193_715833981.1531106224596 Content-Type: multipart/alternative; boundary="----=_Part_104194_531447248.1531106224596" ------=_Part_104194_531447248.1531106224596 Content-Type: text/plain; charset="UTF-8" On Sunday, July 8, 2018 at 6:20:33 PM UTC-4, Justin Bassett wrote: > > We have a __LINE__ macro which expands to the source file line number. Why > not also have __COLUMN__ which expands to the column number? > > There are some cases where a unique identifier is desirable, > Or we could just allow people to declare anonymous variables. It's a language change either way; better to have the change that obsoletes a (small) class of macro usage. -- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. To view this discussion on the web visit https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/228dda03-af94-47b5-a993-673032e86092%40isocpp.org. ------=_Part_104194_531447248.1531106224596 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Sunday, July 8, 2018 at 6:20:33 PM UTC-4, Justin Basset= t wrote:
We ha= ve a __LINE__ macro which expands to the source file line number. Why not a= lso have __COLUMN__ which expands to the column number?

= There are some cases where a unique identifier is desirable,

Or we could just allow people to declare anon= ymous variables. It's a language change either way; better to have the = change that obsoletes a (small) class of macro usage.

--
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To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposa= ls+unsubscribe@isocpp.org.
To post to this group, send email to std-proposals@isocpp.org.
To view this discussion on the web visit https://groups.google.= com/a/isocpp.org/d/msgid/std-proposals/228dda03-af94-47b5-a993-673032e86092= %40isocpp.org.
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