220 34519 article Path: news.gmane.org!.POSTED!not-for-mail From: Manuel Bergler Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: BOYCOTT interface keyword proposal! 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[209.85.220.41]) by mx.google.com with SMTPS id l66sor1139069oib.202.2017.09.29.13.27.49 for (Google Transport Security); Fri, 29 Sep 2017 13:27:49 -0700 (PDT) Received-SPF: pass (google.com: domain of berglerma@gmail.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; X-Received: by 10.202.57.130 with SMTP id g124mr3177163oia.296.1506716869481; Fri, 29 Sep 2017 13:27:49 -0700 (PDT) Original-Received: by 10.74.129.26 with HTTP; Fri, 29 Sep 2017 13:27:48 -0700 (PDT) In-Reply-To: <5facc504-0c16-431c-ac04-313039185938@isocpp.org> X-Original-Sender: berglerma@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=VHuXCula; spf=pass (google.com: domain of berglerma@gmail.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=berglerma@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:34519 Archived-At: --001a113cde84c85936055a59db36 Content-Type: text/plain; charset="UTF-8" 2017-09-29 22:19 GMT+02:00 : > You don't need that in C++. Type erasure can do everything you want. > Depending on your implementation, the type-erasure itself also might be implemented in terms of an abstract interface (see e.g. "Sean Parent's Inheritance is the base class of evil", or Johnathan's reply) . Once we have meta-classes, since it relies on reflection and compile-time code injection, you can easily write a generic type-erasure wrapper template class type_erased; that can be used with any user-defined `interface`. So an `interface` meta-class still provides value in documenting the interface you have, even if you don't use it in the Java sense. > On Friday, September 29, 2017 at 11:57:38 AM UTC-4, Zhihao Yuan wrote: >> >> On Sep 29, 2017 5:31 AM, wrote: >> >> Conflict with concepts lite! I HATE OOP! >> >> >> >> I damn love OOP and Java, Ha Ha Ha! >> >> -- >> Zhihao >> > -- > 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/5facc504-0c16-431c- > ac04-313039185938%40isocpp.org > > . > -- 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/CAM76qmvKL59OOQpeetqbZ75Yeq3kgooy8DxYkXngh9faiJy0Mg%40mail.gmail.com. --001a113cde84c85936055a59db36 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
2017= -09-29 22:19 GMT+02:00 <euloanty@live.com>:
You don't need that in C++. Type er= asure can do everything you want.

Depending on your implementation, the type-erasure itself also might be im= plemented in terms of an abstract interface=C2=A0 (see e.g. "Sean Pare= nt's Inheritance is the base class of evil", or Johnathan's re= ply) . Once we have meta-classes, since it relies on reflection and compile= -time code injection, you can easily write a generic type-erasure wrapper

t= emplate <Interface I>
class type_eras= ed;

th= at can be used with any user-defined `interface`. So an `interface` meta-cl= ass still provides value in documenting the interface you have, even if you= don't use it in the Java sense.


On Friday, September 29, 2017 at 11:57:38 A= M UTC-4, Zhihao Yuan wrote:
On Sep 29, = 2017 5:31 AM, <eulo...@live.com> wrote:
Conflict with concepts lite! = I HATE OOP!

<= /div>

I damn love OOP and Java= , Ha Ha Ha!

--
Zhihao

--
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-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/5fac= c504-0c16-431c-ac04-313039185938%40isocpp.org.

--
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