220 21868 <9b1a8c6f-616d-447c-a074-fdf068ef929a@isocpp.org> article Path: news.gmane.org!not-for-mail From: Evgeny Panasyuk Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: is await an extension of the do-notation? (was Re: Re: Resumable expressions p0114r0 vs async/await P0057R0) Date: Sun, 18 Oct 2015 01:02:49 -0700 (PDT) Lines: 79 Approved: news@gmane.org Message-ID: <9b1a8c6f-616d-447c-a074-fdf068ef929a@isocpp.org> References: <639f0012-8cb4-4db3-82a6-8d042a3497f9@isocpp.org> <401aa118-ed0b-4c7b-92cf-3fbd706eff9d@isocpp.org> <1d15dbc4-e0c1-4df1-86db-014e11f14d26@isocpp.org> <56114953.4030701@wanadoo.fr> <561B403D.4030403@gmail.com> <561C07D1.3080304@gmail.com> <561C213F.1060009@gmail.com> <561C3875.2050701@gmail.com> <86924069-44d0-447f-bf8a-a42e46579832@isocpp.org> <561D79A7.8080007@gmail.com> <894616d6-9609-4038-b2bc-d2c62df21e0f@isocpp.org> <99bdb3ae-9214-4440-8572-4c47a61eda46@isocpp.org> <58628096-14ae-42b2-89d3-c0bd2183bbc0@isocpp.org> <561DC957.8080603@gmail.com> <2e09660f-d688-474a-8811-85fb041f68b8@isocpp.org> <8b78abb4-16b6-4b65-8513-6e2c17317647@isocpp.org> <779be861-3b2a-427a-b36b-ad2874c81129@isocpp.org> <767364f8-785d-4f8f-9bc0-852df56ee4eb@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_845_767107397.1445155369660" X-Trace: ger.gmane.org 1445155382 25977 80.91.229.3 (18 Oct 2015 08:03:02 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 18 Oct 2015 08:03:02 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBC54TLGKR4LBBK5ERWYQKGQELRKIZZQ@isocpp.org Sun Oct 18 10:02:54 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ob0-f198.google.com ([209.85.214.198]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Znivc-0005cP-PI for gclcip-std-proposals@m.gmane.org; Sun, 18 Oct 2015 10:02:52 +0200 Original-Received: by obsn11 with SMTP id n11sf173228664obs.2 for ; Sun, 18 Oct 2015 01:02:51 -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=1D+8Pgod7/abC0XRPY57+O/h09kQ7XbW6yjRrhWrjAo=; b=DyyN7W6VJZiA+UIBpTtGJKfYqZLw8xL0GBlVRC2SjjUw29L06H4oP19fw5jO8U/7fi /LNQWCYTDS1JgMOmjsVnF7znX8yJYpVt5L+eMZeqGMRNEdnjVMKBdd9a3Yve3VUvBWFX UyCgjU6s6AhEozcfKbP/btumYZGZef1iyftHcCreRJ6OLMtZYBvGlLBqiTjczElzNltP nDSC5NoSXAGTj4jaYdtZFXUY2J8gmLMuQx/VL7HXmB19TG7XuEOSqLFwgPdYyNai835K JS+CWaauMy/K+4oIKs1+L7JNSv0hUQ7u/84tdPEJtjaSk030Sy+lDgvk2uigpqpjCajB wshA== 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=1D+8Pgod7/abC0XRPY57+O/h09kQ7XbW6yjRrhWrjAo=; b=DnhIrmgd/yTb6DAQPadcJCCY0sRpYpbloK8IuViC82U2ZGCX0fNOAa8LkMf7/U0O8S nDRjtqtJgOrA1OgJaXcynDK1ex0LqYNSrrbOyKNgqtQHe6BBt6ZRqBZRxvYqs4GDNenC r1WCffxczSSsgmwmaYpcAI+lZpGfFk0OgsqRDjMBADGhY9ZjZENxYNoxtyf+I61/M7Jk EXrcSuVYqfepQHWtmpC8EALJkvtspFo36WBU+OUdQfB3zgy4XK4U9WdB88hs6WRvZtJL pXdk5Gngf3r1LtwkqICLhPinYvBoU5bjMz0L+zNueoetIa+tapaHk9Cv39vwPlBnwYhS NK/Q== X-Gm-Message-State: ALoCoQmJNZnTaZi0bhMyy3tBMeZWKto9TTNJI+0QJ0cIvJHdXQfK+xA2D4lT1lmdO/mFZlxu4PgM X-Received: by 10.182.24.42 with SMTP id r10mr20512843obf.42.1445155371534; Sun, 18 Oct 2015 01:02:51 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.137.104 with SMTP id qh8ls594844igb.7.gmail; Sun, 18 Oct 2015 01:02:50 -0700 (PDT) X-Received: by 10.50.43.229 with SMTP id z5mr266700igl.8.1445155370941; Sun, 18 Oct 2015 01:02:50 -0700 (PDT) In-Reply-To: <767364f8-785d-4f8f-9bc0-852df56ee4eb@isocpp.org> X-Original-Sender: Evgeny.Panasyuk@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:21868 Archived-At: ------=_Part_845_767107397.1445155369660 Content-Type: multipart/alternative; boundary="----=_Part_846_467564723.1445155369660" ------=_Part_846_467564723.1445155369660 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 18 October 2015 =D0=B3., 0:47:38 UTC+3 Nicol Bolas : > > > But I don't claim to know everything. So I accept the existence of such= =20 > application domains. However, your suggestion was to adopt Boost.Coroutin= e *instead=20 > of* P0057, not in addition to. So while you would be serving your=20 > application domain, you would also be performing a *disservice* to the=20 > application domain served by P0057. > > Remember that P0057's primary use case is .then-style continuations. And= =20 > Boost.Coroutine doesn't help with that at all. > > Why? await can be implemented on top of Boost.Coroutine. And I already did= =20 this: https://github.com/boostorg/coroutine/blob/master/example/cpp11/asymmetric/= await_emu.cpp https://github.com/panaseleus/await_emu --=20 ---=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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposa= ls/. ------=_Part_846_467564723.1445155369660 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
18 October 2015 =D0=B3., 0:47:38 UTC+3 Nicol Bolas :
But I don't claim to kn= ow everything. So I accept the existence of such application domains. Howev= er, your suggestion was to adopt Boost.Coroutine instead of P0057, n= ot in addition to. So while you would be serving your application domain, y= ou would also be performing a disservice to the application domain s= erved by P0057.

Remember that P0057's primary use case is .then-= style continuations. And Boost.Coroutine doesn't help with that at all.=


Why? await can be implemented on top of= Boost.Coroutine. And I already did this:
https://github.com/boostorg/co= routine/blob/master/example/cpp11/asymmetric/await_emu.cpp
https://githu= b.com/panaseleus/await_emu

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