220 40286 <356e6b9d-b632-4274-896d-957935c576c1@isocpp.org> article Path: news.gmane.org!.POSTED!not-for-mail From: Adrian H Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: std::between ? Date: Tue, 2 Oct 2018 08:34:15 -0700 (PDT) Lines: 87 Approved: news@gmane.org Message-ID: <356e6b9d-b632-4274-896d-957935c576c1@isocpp.org> References: <7b85d688-9013-407d-b7d3-10d28494e960@isocpp.org> <52d6bd1b-4afb-4f16-adde-8ee8b5ba1041@isocpp.org> <952795b3-b87b-4140-b4f2-2c9ad968b2f7@isocpp.org> <6d2bdffd-187d-44e7-90b2-4c158ee19fe4@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_1514_775975907.1538494455224" X-Trace: blaine.gmane.org 1538494332 1358 195.159.176.226 (2 Oct 2018 15:32:12 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 2 Oct 2018 15:32:12 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCULLOGNUQIRB6E7Z3OQKGQELNAVNBQ@isocpp.org Tue Oct 02 17:32:08 2018 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-yw1-f69.google.com ([209.85.161.69]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1g7Mec-0000EN-QN for gclcip-std-proposals@m.gmane.org; Tue, 02 Oct 2018 17:32:06 +0200 Original-Received: by mail-yw1-f69.google.com with SMTP id c67-v6sf1132714ywh.13 for ; Tue, 02 Oct 2018 08:34:17 -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=R9ZV04kakEeDpNSpQ90zb9ViizahTmxOD08K2tvDavo=; b=ijWFrW2UaVozO/KVkwQt6ffm9GgcCd8e+uDYCd1Ycsv+Ir9v3JKrTWI3ht3yfILcYM 6Yzr7n9Rt8jh0kH08qnei+d44stvF4JtwJ8PARBY6rk60nBTuufybKfVI4xZ1w9LANRk hLuwykMIoho++Zcr87HxVcH+RROMqJqwlHAp65VmeN44mjpiU7pJV6iW/MmN/M+JeJVy II5DO53PvQj0IeVh029KEiIAMEP/Hz4yQlwpx5qMYTsuHTip9DnzuYZSBhd7dYKpqTqq MSFVE0V1HKR2W5VpsFZvHgADyUiQaA/RgH8ixJWmpGxHsf3JU7Rg7Ae5xrvYVioq4Z1A fuKg== 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=R9ZV04kakEeDpNSpQ90zb9ViizahTmxOD08K2tvDavo=; b=G41Fh80nh/apFiRG5MlE0obstbOimwwx94SJAoC5TyJeDkDNlAgx9F9X/fUham40UR v7U45kqp6Q5wMg1Yvf5pp6o04NdXHZOB2BbTxUyWcPuI/cTok2leRQ0s8apf7ItSDMYJ LPO1WmL+arvquCqZjjj4hahi5GrFkAT4ytsbXnf0qkXjLAj0V9cVx1gKrzgotxSmyzMO VTg/+V4aAw+UNaUSmsl4fvFZOyyw0jINpF9WUJOzDKK7JXOP3adTENjRpI+RHZH1zA+i PZcEs4sSi+Yq4y/5TorMZ1zrmWj0P3dJLhWQURYvSK6KdvL3lVdGWLPWOW6IUcsO09Re 8AVg== 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=R9ZV04kakEeDpNSpQ90zb9ViizahTmxOD08K2tvDavo=; b=bp0DOqH6lPZGnZGF3J4w2/IVqH/QZwnapZYImBqEDC2XVMkTSWUukrO2xwcFrc+QPA XNzcJ/OAMZsBMFlMtGloczqoUFknzNyU1Utg1I3Urf+chK99mhyODFb6373k0HpZSSnY cRSufUOjfsPZKXf/6A3OxZ22LsVD7Eo4VIvx07GM9YCVXV/jMENGPpwHby7hs92VfxQW 4eHyQLVEd3Xz6ZAZ6cGOUm+Qcg4dOuABNQJVGt+nCmvvEXs6op5S5mz2QLW0+4T50aM1 p7EPXL+XUZPgukvdd02PSUb2KqVOi6SbzHhkdika1r6t9dY3314RkbdyfbBAREUy2Hs0 Ff2g== X-Gm-Message-State: ABuFfojjAnh1rIoIWuR9XhudKTXqLVuwTM/dC2wwHbawozcKcu/o/mxz noE6c1hbSChqQjqRfL/jrDcK6Q== X-Google-Smtp-Source: ACcGV61jeeLWoCG7Q9hO+Y7tPVtVDdwu1jmoRbs0szCSqbquPzzPFwfVfoZH1yJwwOBgbtY36kr0oQ== X-Received: by 2002:a25:6c87:: with SMTP id h129-v6mr8147180ybc.31.1538494457015; Tue, 02 Oct 2018 08:34:17 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 2002:a25:4206:: with SMTP id p6-v6ls3240054yba.9.gmail; Tue, 02 Oct 2018 08:34:16 -0700 (PDT) X-Received: by 2002:a25:7414:: with SMTP id p20-v6mr22345ybc.4.1538494455830; Tue, 02 Oct 2018 08:34:15 -0700 (PDT) In-Reply-To: <6d2bdffd-187d-44e7-90b2-4c158ee19fe4@isocpp.org> X-Original-Sender: adrian.hawryluk@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:40286 Archived-At: ------=_Part_1514_775975907.1538494455224 Content-Type: multipart/alternative; boundary="----=_Part_1515_449969710.1538494455224" ------=_Part_1515_449969710.1538494455224 Content-Type: text/plain; charset="UTF-8" On Tuesday, October 2, 2018 at 11:31:32 AM UTC-4, Adrian H wrote: > > Wow. I take it back. The optimizer seems more than capable of removing > all of the cruft. gcc 8.2 output: > > https://godbolt.org/z/DecqoQ > > shows that there doesn't seem to be any boolean mid term storage and short > circuiting does appear to be happening. I'm really impressed. > > Evan MS VC++ 2017 doesn't do too bad of a job. Though it does leave a > bunch of unnecessary code in the binary, it doesn't actually execute it. > https://godbolt.org/z/N58hN4 > > Truly impressive. Seems that there is really no need for this feature > after all. > Maybe something like this this should be added to the std lib then. A -- 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/356e6b9d-b632-4274-896d-957935c576c1%40isocpp.org. ------=_Part_1515_449969710.1538494455224 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Tuesday, October 2, 2018 at 11:31:32 AM UTC-4, Adrian H= wrote:
W= ow.=C2=A0 I take it back.=C2=A0 The optimizer seems more than capable of re= moving all of the cruft. gcc 8.2 output:


shows that there doe= sn't seem to be any boolean mid term storage and short circuiting does = appear to be happening.=C2=A0 I'm really impressed.

Evan MS VC++ 2017 doesn't do too bad of a job.=C2=A0 Though it do= es leave a bunch of unnecessary code in the binary, it doesn't actually= execute it.=C2=A0 https://godbolt.org/z/N58hN4

Truly impressive.=C2=A0 Seems that there is really no need for this f= eature after all.
=C2=A0
Maybe something = like this this should be added to the std lib then.

A=C2=A0

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