220 12439 <570663A9-F617-442F-9B48-5B6E7311AE72@gmail.com> article Path: news.gmane.org!not-for-mail From: David Krauss Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Placeholder literals Date: Sun, 24 Aug 2014 09:21:14 +0800 Lines: 65 Approved: news@gmane.org Message-ID: <570663A9-F617-442F-9B48-5B6E7311AE72@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Content-Type: multipart/alternative; boundary="Apple-Mail=_EB93A71B-5D9C-4C78-8786-3EA3A5DF2EA7" X-Trace: ger.gmane.org 1408843388 22930 80.91.229.3 (24 Aug 2014 01:23:08 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 24 Aug 2014 01:23:08 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCW25A7E3QCRB4X44SPQKGQE4ZRHQBQ@isocpp.org Sun Aug 24 03:23:02 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pa0-f70.google.com ([209.85.220.70]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XLMWK-0004Yh-Lh for gclcip-std-proposals@m.gmane.org; Sun, 24 Aug 2014 03:23:01 +0200 Original-Received: by mail-pa0-f70.google.com with SMTP id lf10sf104741877pab.9 for ; Sat, 23 Aug 2014 18:22:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:subject:message-id:date:to:mime-version :x-original-sender:x-original-authentication-results:reply-to :precedence:mailing-list:list-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe:content-type; bh=q9niOV2ZlB4cUS9VFfdo4h/ySpefrh6XnKHsfYttDyA=; b=Hs5ygOkSZPkNnv1HSbJTSJFLdG4btE0AapL0BWEpsHAdSaPeuMyn5ntzGJ35vEY/WK 56/gg4TCkkNUwAQMG1fTZMBkrm/fhMbIiBdZDlCgVgUKdfrGEuiL/5NqDhLTSUsU2rPO HB5zaozD6O+/H8UrsbJdrWO99FH134tkRx8UgaH7WSQUbtgiycj/GvklDo/zhU7rTAkK Jg128j2RdIe0+PsdnmnO23aOJQ+X89j4MNlu5+wUAXCpYyFQjg+eoLNJ8R4+yZ+VE70T Dy+ODkTa1zx/NkRBQlD4DYSHf5PNELUkBO91qx7d3wBneXYe1ZSHzWX+8KLWZhn6rs5l Nv+Q== X-Gm-Message-State: ALoCoQmO9FfHiEGk82YSMHpvoOQ8G6IYNjxr0zOaHlhrI14wgyxqAKfwdBPd2gCzJaqPQaveLLsC X-Received: by 10.66.248.232 with SMTP id yp8mr5654513pac.22.1408843379616; Sat, 23 Aug 2014 18:22:59 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.79.168 with SMTP id k8ls607418igx.6.canary; Sat, 23 Aug 2014 18:22:58 -0700 (PDT) X-Received: by 10.68.104.98 with SMTP id gd2mr17231036pbb.13.1408843378682; Sat, 23 Aug 2014 18:22:58 -0700 (PDT) Original-Received: from mail-pd0-x234.google.com (mail-pd0-x234.google.com [2607:f8b0:400e:c02::234]) by mx.google.com with ESMTPS id ul9si46569476pbc.40.2014.08.23.18.22.58 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 23 Aug 2014 18:22:58 -0700 (PDT) Received-SPF: pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:400e:c02::234 as permitted sender) client-ip=2607:f8b0:400e:c02::234; Original-Received: by mail-pd0-f180.google.com with SMTP id v10so18063555pde.39 for ; Sat, 23 Aug 2014 18:22:58 -0700 (PDT) X-Received: by 10.68.57.144 with SMTP id i16mr17412443pbq.48.1408843378469; Sat, 23 Aug 2014 18:22:58 -0700 (PDT) Original-Received: from [172.20.10.2] ([121.54.54.37]) by mx.google.com with ESMTPSA id h4sm50449938pdi.30.2014.08.23.18.22.33 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 23 Aug 2014 18:22:57 -0700 (PDT) X-Mailer: Apple Mail (2.1878.6) X-Original-Sender: potswa@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:400e:c02::234 as permitted sender) smtp.mail=potswa@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: 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:12439 Archived-At: --Apple-Mail=_EB93A71B-5D9C-4C78-8786-3EA3A5DF2EA7 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1 Why not add literal operator templates returning placeholders? Compare: std::placeholders::_1 // old 1param // new Would it cause a problem to add it in the global namespace with no leading = underscore? This saves the user a using directive and the name operator "" = param is reserved to the language anyway. It should still be an ordinary pa= rt of the language, declared by . The name needs to be bikeshedded. --=20 ---=20 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 e= mail to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposa= ls/. --Apple-Mail=_EB93A71B-5D9C-4C78-8786-3EA3A5DF2EA7 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1 Why not add literal operat= or templates returning placeholders?

Compare:
= std::placeholders::_1 // old
1pa= ram // new

Would it cause a problem to add = it in the global namespace with no leading underscore? This saves the user = a using directive and the name operator "" param is reserved to the language anyway. It sh= ould still be an ordinary part of the language, declared by <functional>.

The name needs = to be bikeshedded.

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