220 33109 article Path: news.gmane.org!.POSTED!not-for-mail From: Nicol Bolas Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: =?UTF-8?Q?=5Bstd=2Dproposals=5D_Re=3A_Proposal_to_extend_range=2Dbased_?= =?UTF-8?Q?=E2=80=98for=E2=80=99_loop_example=3A__for=281=3A10=29?= Date: Tue, 4 Jul 2017 13:33:42 -0700 (PDT) Lines: 136 Approved: news@gmane.org Message-ID: References: <524ec202-94cf-44cf-af4b-ff1339e6f394@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_2653_488252739.1499200422996" X-Trace: blaine.gmane.org 1499200425 30084 195.159.176.226 (4 Jul 2017 20:33:45 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 4 Jul 2017 20:33:45 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCEKFTV6ZUMBBJ7X57FAKGQEISPOJYI@isocpp.org Tue Jul 04 22:33:41 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-qk0-f197.google.com ([209.85.220.197]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dSUVw-0007ZR-7t for gclcip-std-proposals@m.gmane.org; Tue, 04 Jul 2017 22:33:40 +0200 Original-Received: by mail-qk0-f197.google.com with SMTP id g89sf107440307qkh.15 for ; Tue, 04 Jul 2017 13:33:45 -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=z3Pg1AlOAdnfLWnthSAkg42hCH6mwhCGY3Lk8wIKuTc=; b=Haz7VamxlXT5uw/dQUzZCSEdpVlcW0RoJprwA5GekngrArsceq4xgA68cYIjOwoEo9 cS7TF0GCyx4NaAtfn7Kzgb4NNfx/n3YlEI3WU8sJ0PfU4gr7GVw0/9Uygl+gzM43j5xh PYg61IU49cWQjzQh5X4nLULvCusg7huw/AekhWKTNmLDOKWGotRZ+n3IzmYxoCekGDVz dDJ8y99Clev3RcyNDsyE9YBbnnxQ4wwahbO1mUxehCD9Llr6IqrKdXd74rPGOjHxkLQV 50ty/UxV6QJNmOshXYeqFwvOyF1YdiCsnRjYBSsKNPJNFWI04okjjavzpxsN0XknsANM /06g== 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=z3Pg1AlOAdnfLWnthSAkg42hCH6mwhCGY3Lk8wIKuTc=; b=LSf9ZODspHJWbvYvjUJMGey2cWSRp8Wz7DyvEIYaHnPaXo72CiBh1NEsmLoZqMqTf7 TUJYQ8dW4Huy+bHt/pEkLgfik9xSIV7Uf97fQvt5+nHv0GdJ4UYv+WrSedfEaDj7Pj0o hbGMXwWhvJAB+9T1EIVCk/1xY9GWKriRbMeyYJEd+cdIF9jNf1Br2lL9TaI9V9zVpJ3W 4V9616CSBQeKYL6QEdhcEPLWG14Cft7dz2iUi0tpxCi5+TLZ4vIoN5kUgPsH0+ocPqSu POQ3v+e+hmegZU/HV/VSFE/BmI5G59lPpOLkoFLyIszRlUgpFnZVG7DKj1TRxjnzO8Ry rRZA== 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=z3Pg1AlOAdnfLWnthSAkg42hCH6mwhCGY3Lk8wIKuTc=; b=bJJUO+/HYk5cSb0kfo+okgw5GmFPSLdTnO166i5kQP+KPkXq0s+vN3B/zh43SCH+Bm 6OShURGZ3HBv1G4GQFCdWbKRRtAqK/DsvTf6z8yk6Z1ObtWSQYQBq7AvL11yhzvtvqPu 3G/CZoAzs3k57WBy6r2rJwAB8uK9+yUPup+wLWsxH0cO1gauXIILMgw9btqboWnOXmEe EC3izcGwwwG94SxK8RMDIamT9R4TEu4ZtLxr1xmfWBgilYw2arRxDBWDI5PVj7R+v6JO 8p9H5DSe8Cp1mhMn3ztWoldIsUwUVasu/MVTImLpfehU+hHfpw5ZQVCOpLT4zOvsSSrw xTEg== X-Gm-Message-State: AIVw110SqDRBpJqThLHsF5Xvx64RGuh6YZoWFtyMcIA2Jg6J+nsldfr7 yMnQAtLtwh9hls+3 X-Received: by 10.200.3.80 with SMTP id w16mr14929439qtg.64.1499200425370; Tue, 04 Jul 2017 13:33:45 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.36.94.142 with SMTP id h136ls8861855itb.0.gmail; Tue, 04 Jul 2017 13:33:43 -0700 (PDT) X-Received: by 10.36.3.72 with SMTP id e69mr1361963ite.1.1499200423692; Tue, 04 Jul 2017 13:33:43 -0700 (PDT) In-Reply-To: <524ec202-94cf-44cf-af4b-ff1339e6f394@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-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:33109 Archived-At: ------=_Part_2653_488252739.1499200422996 Content-Type: multipart/alternative; boundary="----=_Part_2654_563973965.1499200422996" ------=_Part_2654_563973965.1499200422996 Content-Type: text/plain; charset="UTF-8" On Tuesday, July 4, 2017 at 2:20:37 PM UTC-4, Abdulla Herzallah wrote: > > HI ISO C++ Standard committee, > > Apology if I am not following a proper specifications draft, I hope it > will be reviewed by someone who can help in *evaluating or enhancing* > this proposal. > Here's an even better idea: for(auto i; std::ints(10)) { } Now we don't have to extend anything. We add one standard library function, and we get everything you need. We can even add a literal to make getting `size_t`s easier: for(auto i; std::ints(10z)) { } Speaking of literals, we can even have literals that do the entire job, so we don't need `std::ints` at all: for(auto i; 10rng) { } In short, there is no good reason to extend the language to do this. We have plenty of tools to do the job adequately ourselves. -- 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/fd09d6f6-d5c0-4443-b116-5160e12ce13e%40isocpp.org. ------=_Part_2654_563973965.1499200422996 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Tuesday, July 4, 2017 at 2:20:37 PM UTC-4, Abdu= lla Herzallah wrote:
HI ISO C++ Standard committee,
=C2=A0=C2=A0
Apology if I a= m not following a proper specifications draft, I hope it will be reviewed b= y someone who can help in evaluating or enhancing this proposal.

Here's an even better idea:

=
for(auto i; std::ints(10))
{
}

Now we do= n't have to extend anything. We add one standard library function, and = we get everything you need. We can even add a literal to make getting `size= _t`s easier:

<= div class=3D"subprettyprint">for(auto= i<= span style=3D"color: #660;" class=3D"styled-by-prettify">; std::ints(10z))
{<= /span>
= }

Speaking of literals, we can even have literals that do the entire = job, so we don't need `std::ints` at all:

for(auto i; 1= 0rng)
{
}

In = short, there is no good reason to extend the language to do this. We have p= lenty of tools to do the job adequately ourselves.

--
You received this message because you are subscribed to the Google Groups &= quot;ISO C++ Standard - Future Proposals" group.
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/fd09d6f6-d5c0-4443-b116-5160e12ce13e= %40isocpp.org.
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