220 19881 article Path: news.gmane.org!not-for-mail From: Arthur Tchaikovsky Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: default arguments Date: Tue, 18 Aug 2015 02:42:19 -0700 (PDT) Lines: 140 Approved: news@gmane.org Message-ID: References: Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_84_713134243.1439890939278" X-Trace: ger.gmane.org 1439890944 10058 80.91.229.3 (18 Aug 2015 09:42:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 18 Aug 2015 09:42:24 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBDL6FI4NYYERB7H3ZOXAKGQE2MKKEOY@isocpp.org Tue Aug 18 11:42:23 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pd0-f197.google.com ([209.85.192.197]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZRdPS-00040V-6Q for gclcip-std-proposals@m.gmane.org; Tue, 18 Aug 2015 11:42:22 +0200 Original-Received: by pdbpr2 with SMTP id pr2sf353796049pdb.3 for ; Tue, 18 Aug 2015 02:42:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:in-reply-to:references:subject:mime-version :content-type: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=lbJLj+Vxj10vl+Qsw1pF2jooeYhZ/d8CDBcO/seIP4c=; b=eAgzc8ynEk46MXsF0aNV1PCjPiwpdbMMt7StJyb/lL2cqgOMEFEcWjRmAkxeZTKhxw VbN9NTSmyYkoIoye9MbuMyuVjRyfnqAc9b8KL9huj0YjtgPJRf8tl3sWYyNoZGA7TQyo hzeJIeX42pS9MMPaFjOe/nOMFMETl4MtIkASmJ+230s+/VEQY4GGNOqreQH+zF+kot/x y2SDr5wDi1LBZjtRnUGQbTeaBAeggdRLfffL9DPN6WSQ3FDRHK+7jn4466EyUcwN5oea ElWBaBk+AAybCl5c4Jo+IaW5x5AH7gF2FI6Hmck9vnNQAUll+I12luRRp8Uap4ZiFi6g +HmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:message-id:in-reply-to:references :subject:mime-version:content-type: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=lbJLj+Vxj10vl+Qsw1pF2jooeYhZ/d8CDBcO/seIP4c=; b=atTvvEuho8TG+yvdwR24nqX+hf6YEPIDBkEROnp9f7Cc16Ew3+YuP5nsJc8wvA5dFb EST6Qya8kGRnrWK0x7teAj4VDVALz+NGq+WzcmOuRiMT3JJDEWn2IEmEiAr3D/8NkJGm vezJ10jBNg4zW37yZpzNKOJq15Nf9Xtb5aIv2cr/IpZhXn7S3IexceyrtTp2eeFj2HZu y6UNlIlpB20d+92vci+6BeDv7r1/SeFaGUqC+7REBhfsA6SrJStZgO930z8g40LU6U+M uK6YwvqiX1/WSYYDo9tmNkAj7auufwSXrFZ26tA0lQ7aa4e1+oATQcjb0MJS/VW0U/wk HgAQ== X-Gm-Message-State: ALoCoQly7R4i0Azmco/xKmDnHHtDnMuTL8612+KBTnfWhRsaWVu1nzRjJuEfsNbsSiyAU4ucyH/2 X-Received: by 10.66.185.81 with SMTP id fa17mr5317075pac.9.1439890941103; Tue, 18 Aug 2015 02:42:21 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.140.95.101 with SMTP id h92ls2073100qge.55.gmail; Tue, 18 Aug 2015 02:42:19 -0700 (PDT) X-Received: by 10.140.101.129 with SMTP id u1mr72669qge.27.1439890939965; Tue, 18 Aug 2015 02:42:19 -0700 (PDT) In-Reply-To: X-Original-Sender: atch.cpp@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:19881 Archived-At: ------=_Part_84_713134243.1439890939278 Content-Type: multipart/alternative; boundary="----=_Part_85_837242700.1439890939278" ------=_Part_85_837242700.1439890939278 Content-Type: text/plain; charset=UTF-8 That genuinely seems pointless/silly to me, unless you can provide some convincing use cases. On Tuesday, 18 August 2015 10:34:39 UTC+1, Johannes Schaub wrote: > > > Am 15.08.2015 18:49 schrieb "Arthur Tchaikovsky" >: > > > > Hi, > > Does anyone see helpfulness of such solution: > > Having fnc: > > > > void f(int a = 0, int b = 1, int c = 2, int d = 3); > > > > I think that it would be nice to be able to say whilst calling it and > requiring only some of those args to be non-default: > > > > f(default,2,default,4); > > > > Thoughts? > > > > I would also wanna solve this with named arguments > > f(.b = 2, .d = 4) > > And index based > > f([1] = 2, [3] = 4) > > > > > > > > > > > -- > > > > --- > > 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-proposal...@isocpp.org . > > To post to this group, send email to std-pr...@isocpp.org . > > Visit this group at > http://groups.google.com/a/isocpp.org/group/std-proposals/. > -- --- 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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_85_837242700.1439890939278 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
That genuinely seems pointless/silly to me, unless you can= provide some convincing use cases.

On Tuesday, 18 August 2015 10:34= :39 UTC+1, Johannes Schaub wrote:


Am 15.08.2015 18:49 schrieb "Arthur Tchaikovsky" <atch...@gmail.com= >:
>
> Hi,
> Does anyone see helpfulness of such solution:
> Having fnc:
>
> void f(int a =3D 0, int b =3D 1, int c =3D 2, int d =3D 3);
>
> I think that it would be nice to be able to say whilst calling it and = requiring only some of those args to be non-default:
>
> f(default,2,default,4);
>
> Thoughts?
>

I would also wanna solve this with named arguments

=C2=A0 f(.b =3D 2, .d =3D 4)

And index based

=C2=A0 f([1] =3D 2, [3] =3D 4)

>
>
>
>
> --
>
> ---
> You received this message because you are subscribed to the Google Gro= ups "ISO C++ Standard - Future Proposals" group.
> To unsubscribe from this group and stop receiving emails from it, send= an email to std-proposal...@isocpp.org.
> To post to this group, send email to std-pr...@isocpp.org.
> Visit this group at http://groups.google.com/a/<= wbr>isocpp.org/group/std-proposals/.

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