220 30906 article Path: news.gmane.org!.POSTED!not-for-mail From: =?UTF-8?Q?Micha=C5=82_Dominiak?= Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Try-Catch function Date: Wed, 15 Feb 2017 15:32:15 +0000 Lines: 114 Approved: news@gmane.org Message-ID: References: <76d9ab0e-4a74-401d-85ad-327f912a1bb7@isocpp.org> <09970ac7-82aa-46cb-91a3-38b55dea503e@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=f403045de9524029b205489363ff X-Trace: blaine.gmane.org 1487172757 20493 195.159.176.226 (15 Feb 2017 15:32:37 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 15 Feb 2017 15:32:37 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCA6D5ULVYBRBCXJSHCQKGQE2FEHT5Q@isocpp.org Wed Feb 15 16:32:32 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ot0-f200.google.com ([74.125.82.200]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ce1Z8-0004SC-0O for gclcip-std-proposals@m.gmane.org; Wed, 15 Feb 2017 16:32:22 +0100 Original-Received: by mail-ot0-f200.google.com with SMTP id 19sf81165791oti.0 for ; Wed, 15 Feb 2017 07:32:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :x-original-sender:x-original-authentication-results:reply-to :precedence:mailing-list:list-id:x-spam-checked-in-group:list-post :list-help:list-archive:list-subscribe:list-unsubscribe; bh=t/iHiAi0Y5uJoe4/HXftXMCtNu5Wh3vw1Y7vDxX+iYI=; b=U1mIPz1r+YUfKdghjAKIleT9+xEztIO5PkDqA/srBx2kpRK+2YNOVzdcCnM9nEckAY kEP5DhVwvsyDUhIR8xQK+vopnMiK2d1LfEksyo5vioxf6lLqJZt4VK+PTyXdUoX1aCll oKSIybsZHCk199P7syDz0ndpKQks7ZC0PKWIzCBMqt0Gpk3soLChRA1J55aIv4zZzBfI sYRRrQnY4Ph8AtzemiQewAvKUw/DS5Z0LQrZuluN2z2dCYnH6+xUFKTmujfJyg6Q86Dr lc2+dzMe1yg3MwJntowjC0+4QC4EXmkbT0tiP+8GChdlt8HrkR3x6IcwL6ChFZxMNruI B1Xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=t/iHiAi0Y5uJoe4/HXftXMCtNu5Wh3vw1Y7vDxX+iYI=; b=IMqC/6Q1ALW7fUTCM4vOa7hn3pbbBJKRi7XPe7mw9tSsytwhL40cg6D7PxzQSiqKsH w6Rv4lpppxnHq/+1rMpiPItARrESJsXjD+Ui9r4eVW2iY1rkCk3eQ6+jMBjnMUEIwNwX 5rXrZkkNK7AHvCgPIGqoqFPE5/9L7RiSfvaPj9SIb/0Bk+aa6OUF5IGQa5ILoZJxshAf guWEOPlVabmTwrFm64ZunLU1DzrmK5pUncsxQ57BP/9LyPBsca9PxYSKMtk7+2OkYToK 1By0oet4vnNYIFCh+8rOj3Z8uN7OChd0grWqw9OS+bk6L6g/sFVcdJJuH0DrOmSpkztN uYaQ== X-Gm-Message-State: AMke39lafEFmtMueb8OwuFqMvBEgz9bhrn8b25o/mdpSKsec5eBf9boTGDrDraJR5jGBAw== X-Received: by 10.157.67.161 with SMTP id t33mr182641ote.35.1487172747632; Wed, 15 Feb 2017 07:32:27 -0800 (PST) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.157.32.34 with SMTP id n31ls5605636ota.4.gmail; Wed, 15 Feb 2017 07:32:26 -0800 (PST) X-Received: by 10.159.32.38 with SMTP id 35mr18554320uam.12.1487172746616; Wed, 15 Feb 2017 07:32:26 -0800 (PST) Original-Received: from mail-ua0-x232.google.com (mail-ua0-x232.google.com. [2607:f8b0:400c:c08::232]) by mx.google.com with ESMTPS id y71si1285331vky.245.2017.02.15.07.32.26 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 15 Feb 2017 07:32:26 -0800 (PST) Received-SPF: neutral (google.com: 2607:f8b0:400c:c08::232 is neither permitted nor denied by best guess record for domain of admin@griwes.info) client-ip=2607:f8b0:400c:c08::232; Original-Received: by mail-ua0-x232.google.com with SMTP id x12so4507596uax.0 for ; Wed, 15 Feb 2017 07:32:26 -0800 (PST) X-Received: by 10.159.49.25 with SMTP id m25mr18837523uab.87.1487172746054; Wed, 15 Feb 2017 07:32:26 -0800 (PST) In-Reply-To: <09970ac7-82aa-46cb-91a3-38b55dea503e@isocpp.org> X-Original-Sender: griwes@griwes.info X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@griwes-info.20150623.gappssmtp.com; spf=neutral (google.com: 2607:f8b0:400c:c08::232 is neither permitted nor denied by best guess record for domain of admin@griwes.info) smtp.mailfrom=admin@griwes.info 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:30906 Archived-At: --f403045de9524029b205489363ff Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Wed, Feb 15, 2017 at 4:16 PM Nicol Bolas wrote: > On Wednesday, February 15, 2017 at 3:59:15 AM UTC-5, Micha=C5=82 Dominiak= wrote: > > As far as I understand, this already exists in the language (and > coincidentally is the only way to capture exceptions thrown in a ctor ini= t > list). > > > Not quite. If you use function-level try blocks, the catch blocks are not > considered part of the function itself. So they cannot `return`; they can > only `throw`. For some reason, the OP wants to be able to return from the= m. > Even though they are declare outside of the function. > That doesn't sound right. > -- > 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/09970ac7-82a= a-46cb-91a3-38b55dea503e%40isocpp.org > > . > --=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/CAPCFJdTrkxpJHAHdb6FUpoR2W3zpzhabuvkCz3uLcopc2MB= 0_A%40mail.gmail.com. --f403045de9524029b205489363ff Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Wed, Feb 15= , 2017 at 4:16 PM Nicol Bolas <jm= ckesson@gmail.com> wrote:
On Wednesday, February 15, 2017 at 3:59:= 15 AM UTC-5, Micha=C5=82 Dominiak wrote:
As far as I understand,= this already exists in the language (and coincidentally is the only way to= capture exceptions thrown in a ctor init list).

Not quite. If you use function-level try blocks, the catch blocks = are not considered part of the function itself. So they cannot `return`; th= ey can only `throw`. For some reason, the OP wants to be able to return fro= m them. Even though they are declare outside of the function.

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