220 33440 <344B1400-86F7-4D11-A7B0-ABB44D5AF397@gmail.com> article Path: news.gmane.org!.POSTED!not-for-mail From: Bryce Glover Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: [idea for proposal] Adding std::shift to Date: Sat, 29 Jul 2017 22:56:39 -0400 Lines: 149 Approved: news@gmane.org Message-ID: <344B1400-86F7-4D11-A7B0-ABB44D5AF397@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Content-Type: multipart/alternative; boundary="Apple-Mail=_81AC97CD-9950-4988-9B14-10761E02E597" X-Trace: blaine.gmane.org 1501383406 1190 195.159.176.226 (30 Jul 2017 02:56:46 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 30 Jul 2017 02:56:46 +0000 (UTC) Cc: std-proposals@isocpp.org To: Dan Raviv Original-X-From: std-proposals+bncBCPMBF5ZZEBBB2UV6XFQKGQEMQV6KCQ@isocpp.org Sun Jul 30 04:56:39 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-it0-f69.google.com ([209.85.214.69]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dbePG-0008NX-7S for gclcip-std-proposals@m.gmane.org; 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[68.50.177.220]) by smtp.gmail.com with ESMTPSA id a127sm10125067itd.33.2017.07.29.19.56.40 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 29 Jul 2017 19:56:40 -0700 (PDT) X-Mailer: Apple Mail (2.3124) X-Original-Sender: RandomDSdevel@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.b=Nsirxjn0; spf=pass (google.com: domain of randomdsdevel@gmail.com designates 2607:f8b0:4001:c0b::244 as permitted sender) smtp.mailfrom=randomdsdevel@gmail.com; dmarc=pass (p=NONE sp=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:33440 Archived-At: --Apple-Mail=_81AC97CD-9950-4988-9B14-10761E02E597 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Dear Mr. Raviv,=20 Here are a thread lurker=E2=80=99s comments on your proposal. First, = your first footnote reads: =20 > =C2=B9 Technically, in some cases std::move can be used with reverse iter= ators to implement a shift of elements forward, but not in all cases and it= is also less efficient, see https://groups.google.com/a/isocpp.org/d/msg/s= td-proposals/I76om68B3t0/25bGu7O6AwAj and https://groups.google.= com/a/isocpp.org/d/msg/std-proposals/I76om68B3t0/SPTeZdofAQAJ . = =20 Within this statement, the part saying, =E2=80=9Cstd::move can be used with= reverse iterators to implement a shift of elements forward,=E2=80=9D shoul= d either read, =E2=80=9Cstd::move can be used with reverse iterators to imp= lement a shift of elements backward,=E2=80=9D (emphasis added by me) or, = =E2=80=9Cstd::move_backwards can be used with reverse iterators to implemen= t a shift of elements forward,=E2=80=9D (emphasis here also added by me,) a= s only one of these alternatives could render the sentence self-consistent = with both itself and the rest of your document. Also, your use of =E2=80= =98in some cases=E2=80=99 should be followed by a comma, though I acknowled= ge that two comma-suffixed dependent relative clauses = (at least, I think that=E2=80=99s what they=E2=80=99re called; you can cor= rect me if my grammar=E2=80=99s off) coming one after another at the beginn= ing of a sentence can read somewhat awkwardly. A reasonable way around tha= t stylistic issue would be to keep =E2=80=99Technically, =E2=80=A6=E2=80=99= at the beginning of the sentence, but move =E2=80=98in some cases=E2=80=99= later on within it=E2=80=89=E2=80=94=E2=80=89specifically, between =E2=80= =98can=E2=80=99 and =E2=80=98be=E2=80=99 such that the resulting sentence f= ragment would, properly using commas as delimiters, read as, =E2=80=9C=E2= =80=A6, std::move can, in some cases, be used=E2=80=A6.=E2=80=9D (If the t= hought of splitting infinitives brings you distaste, I can explain myself: = it turns out that the validity of the rule against doing so is actually a = matter of dispute .)= =20 Second, you might wish to reevaluate your use of fonts: some function= names referenced within particular sentences are not in code font when the= y should be. Other than these concerns and those parts of your proposal wh= ich you have yet to fill in, the document hosting it looks good so far. =20 Regards,=20 Bryce Glover RandomDSdevel@gmail.com --=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. To view this discussion on the web visit https://groups.google.com/a/isocpp= ..org/d/msgid/std-proposals/344B1400-86F7-4D11-A7B0-ABB44D5AF397%40gmail.com= .. --Apple-Mail=_81AC97CD-9950-4988-9B14-10761E02E597 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="UTF-8"

De= ar Mr. Raviv,

Here are a thread lurker=E2=80=99s comments on your = proposal. First, your first footnote reads:

=C2=B9 Technically, in some cases std::move can be used with reverse iter= ators to implement a shift of elements forward, but not in all cases and it= is also less efficient, see https://groups= ..google.com/a/isocpp.org/d/msg/std-proposals/I76om68B3t0/25bGu7O6AwAj&n= bsp;and https://groups.google.com/a/isocpp.= org/d/msg/std-proposals/I76om68B3t0/SPTeZdofAQAJ.

Within this statement, the part saying, = =E2=80=9Cstd::move can be used with reverse iterators to implement a shift = of elements forward,=E2=80=9D should either read, =E2=80=9Cstd::move can be= used with reverse iterators to implement a shift of elements backward,=E2=80=9D (emphasis added by me) or, =E2=80=9Cstd::move_backwards can be used with reverse iterators to implement= a shift of elements forward,=E2=80=9D (emphasis here also added by me,) as= only one of these alternatives could render the sentence self-consistent w= ith both itself and the rest of your document. Also, your use of =E2= =80=98in some cases=E2=80=99 should be followed by a comma, though I acknow= ledge that two comma-suffixed dependent relative clauses (at le= ast, I think that=E2=80=99s what they=E2=80=99re cal= led; you can correct me if my grammar=E2=80=99s off) coming one after anoth= er at the beginning of a sentence can read somewhat awkwardly. A reas= onable way around that stylistic issue would be to keep =E2=80=99Technicall= y, =E2=80=A6=E2=80=99 at the beginning of the sentence, but move =E2=80=98i= n some cases=E2=80=99 later on within it=E2=80=89=E2=80=94=E2=80=89specific= ally, between =E2=80=98can=E2=80=99 and =E2=80=98be=E2=80=99 such that the = resulting sentence fragment would, properly using commas as delimiters, rea= d as, =E2=80=9C=E2=80=A6, std::move can, in some cases, be used=E2=80=A6.= =E2=80=9D (If the thought of splitting infinitives brings you distast= e, I can explain myself: it turns out that the validity of the rule a= gainst doing so is actually a matter of dispute.)

Second, you might wish to reevaluate your= use of fonts: some function names referenced within particular sente= nces are not in code font when they should be. Other than these conce= rns and those parts of your proposal which you have yet to fill in, the doc= ument hosting it looks good so far.

Re= gards,

Bryce Glover

RandomDSdevel@gmail.com

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