220 21345 <9e17f8a6-4f5b-47dd-9f76-a4675a5ede3c@isocpp.org> article Path: news.gmane.org!not-for-mail From: =?UTF-8?Q?Germ=C3=A1n_Diago?= Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Resumable expressions p0114r0 vs async/await P0057R0 Date: Tue, 6 Oct 2015 04:34:02 -0700 (PDT) Lines: 82 Approved: news@gmane.org Message-ID: <9e17f8a6-4f5b-47dd-9f76-a4675a5ede3c@isocpp.org> References: <639f0012-8cb4-4db3-82a6-8d042a3497f9@isocpp.org> <401aa118-ed0b-4c7b-92cf-3fbd706eff9d@isocpp.org> <1d15dbc4-e0c1-4df1-86db-014e11f14d26@isocpp.org> <1bf00a8f-5f20-43de-a319-2712ab34eafd@isocpp.org> <36f46c03-b1f1-4230-b686-a7a9a1c491cb@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_6158_1606441187.1444131243023" X-Trace: ger.gmane.org 1444131249 15686 80.91.229.3 (6 Oct 2015 11:34:09 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 6 Oct 2015 11:34:09 +0000 (UTC) Cc: german.diago@hubblehome.com To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBDC2VXM4YYDRBLHDZ2YAKGQESKVNQZI@isocpp.org Tue Oct 06 13:34:09 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ig0-f197.google.com ([209.85.213.197]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZjQVR-0007cN-HK for gclcip-std-proposals@m.gmane.org; Tue, 06 Oct 2015 13:34:05 +0200 Original-Received: by igcph1 with SMTP id ph1sf247371634igc.2 for ; Tue, 06 Oct 2015 04:34:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc: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=OFISvek4SXAe5x4HeZq6aHtECxr0iLzFLxcpaTPH9zg=; b=XeTSlIYWWpvSrOykUiXM8CbtYYIh5OGIdUd0/zlu3KH/3DPo0nDLGfOTV+sAyvkGuH O77GM94x/bWMy9a5fCNoqfxtVybCiVevd31NzxuXnK2rqgFj4rsi/h7ch+5l80vPEBq2 FM888bdMbvLb1bTMET0Px7f+wtNF/IdZLOJDTG5TrGwANF98MYt/VUmWBlrgtIy+aHJc tGx+oA3IL04Mspjk+aQ13HYYuUaBNJyzKNyPfjkSvAY2yyrDs24PHTh0wFrx9N8urQaZ Ok1S1170gzes70PsSamdmYsCEkykia49bQa54sRQkIRS4mklAg1u4OEBWB2ZWi32LqjP 0Tdw== 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:cc: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=OFISvek4SXAe5x4HeZq6aHtECxr0iLzFLxcpaTPH9zg=; b=DpURKTTr42Z6TNAxK5ohBuDljR29O9tJ+Av3o7BzEls4oofEWTzc4e54QI0cmE5l8r VYitkXWvHmY4YW8RrF29joY1lHZEOpNQ8XlIp9GhjX9MH9o9KePta8M5xvFe5hmqs06O py0wYkiBacKvH3utowB+RVNj9iUea1OOKroOLjCywnC2JROWQdAl72xZlYsZZ6haMo5Z O+tFE4x6TYxEEfE6Fg5/Uvi1pGETnbI3l8yA87zkmJG9HB+XIkaKlIF6mMyci5qQrCqu tGCBaXe4qLiGBLljTMLxBmLglxOTAFipH5pV7jsA7ZPpE54ScI8YHM1xYiXHe9jOfakT lODw== X-Gm-Message-State: ALoCoQn1700CdUdnx23Zb41XWzadfukcoWRyOcyZM1RpI94X9FDvCuTQ4zNHk4yEjvqqV3hVl73R X-Received: by 10.50.55.71 with SMTP id q7mr13598828igp.7.1444131244680; Tue, 06 Oct 2015 04:34:04 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.12.194 with SMTP id 63ls1921523iom.103.gmail; Tue, 06 Oct 2015 04:34:03 -0700 (PDT) X-Received: by 10.50.30.102 with SMTP id r6mr187992igh.3.1444131243842; Tue, 06 Oct 2015 04:34:03 -0700 (PDT) In-Reply-To: <36f46c03-b1f1-4230-b686-a7a9a1c491cb@isocpp.org> X-Original-Sender: germandiago@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:21345 Archived-At: ------=_Part_6158_1606441187.1444131243023 Content-Type: multipart/alternative; boundary="----=_Part_6159_1670705577.1444131243023" ------=_Part_6159_1670705577.1444131243023 Content-Type: text/plain; charset=UTF-8 How much more performant? Is it enough to be worth arguing about? After > all, most things you'll be using await for won't be cheap operations. Will > you actually *notice* any such performance loss? > Well this is a usual argument to use "productivity languages". As far as I know, the definition of performance for C++ is that between C++ and machine code, we can only choose assembly. So far, it has been good to me. Boxing is bad, bad, bad. I do not think it is a good idea in a language abstraction. About the scheduling, not sure, but I believe what you say for now :). > When a resumable function is used in a resumable expression, the > definition of the function must appear before the end of the translation > unit. > There is an example of a boxed generator with separate compilation in the paper. Doesn't that contradict whay you are claiming? -- --- You received this message because you are subscribed to the Google Groups "ISO C++ Standard - Future Proposals" group. 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= How much more performant? Is it enough to be worth arguing about? After all= , most things you'll be using await for won't be cheap operations. = Will you actually notice any such performance loss?

Well this is a usual argument to use "productivity lang= uages". As far as I know, the definition of performance for C++ is tha= t between C++ and machine code, we can only choose assembly.
So far, it = has been good to me. Boxing is bad, bad, bad. I do not think it is a good i= dea in a language abstraction. About the scheduling, not sure, but I believ= e what you say for now :).
=C2=A0
=C2=A0
When a resumable function is used in = a resumable expression, the definition of the function must appear before t= he end of the translation unit.

There is an = example of a boxed generator with separate compilation in the paper. Doesn&= #39;t that contradict whay you are claiming?

=C2=A0

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