220 36980 article Path: news.gmane.org!.POSTED!not-for-mail From: Zach Laine Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: const std::map operator [] Date: Tue, 20 Feb 2018 10:17:27 -0600 Lines: 53 Approved: news@gmane.org Message-ID: References: Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="f403045f4f609a97d40565a72574" X-Trace: blaine.gmane.org 1519143330 32380 195.159.176.226 (20 Feb 2018 16:15:30 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 20 Feb 2018 16:15:30 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCYIDPWPOAIJTFFR2QCRUBBW6UIJW@isocpp.org Tue Feb 20 17:15:26 2018 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lf0-f71.google.com ([209.85.215.71]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eoAZg-0007uL-R5 for gclcip-std-proposals@m.gmane.org; Tue, 20 Feb 2018 17:15:25 +0100 Original-Received: by mail-lf0-f71.google.com with SMTP id v123sf600825lfa.4 for ; 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[209.85.220.41]) by mx.google.com with SMTPS id d23sor451747lfb.61.2018.02.20.08.17.29 for (Google Transport Security); Tue, 20 Feb 2018 08:17:29 -0800 (PST) Received-SPF: pass (google.com: domain of whatwasthataddress@gmail.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; X-Received: by 10.25.222.207 with SMTP id i76mr82775lfl.133.1519143448384; Tue, 20 Feb 2018 08:17:28 -0800 (PST) Original-Received: by 10.46.41.147 with HTTP; Tue, 20 Feb 2018 08:17:27 -0800 (PST) In-Reply-To: X-Original-Sender: whatwasthataddress@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=mUZRnqiu; spf=pass (google.com: domain of whatwasthataddress@gmail.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=whatwasthataddress@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=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:36980 Archived-At: --f403045f4f609a97d40565a72574 Content-Type: text/plain; charset="UTF-8" On Tue, Feb 20, 2018 at 7:17 AM, wrote: > I've considered doing similar things a few times. I usually opt for > throwing an exception if the key doesn't match an item however. > That's not a very exceptional circumstance, nor is it an error. An optional is a much better convention is such code. Zach -- 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/CALOpkJBTZ%2BTyymMbJWMWiTkArQEusFqyAkfLofBoskj57Oe2iA%40mail.gmail.com. --f403045f4f609a97d40565a72574 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On T= ue, Feb 20, 2018 at 7:17 AM, <frederik.hertzum@gmail.com>= wrote:
I've = considered doing similar things a few times. I usually opt for throwing an = exception if the key doesn't match an item however.

That's not a very exceptional circumstance, nor = is it an error.=C2=A0 An optional is a much better convention is such code.=

Zach


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