220 33489 <20170801082645.GA21296@noemi.bahnhof.se> article Path: news.gmane.org!.POSTED!not-for-mail From: Magnus Fromreide Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: P0329R0 falls short for designated initialisers Date: Tue, 1 Aug 2017 10:26:45 +0200 Lines: 55 Approved: news@gmane.org Message-ID: <20170801082645.GA21296@noemi.bahnhof.se> References: <4892340.tBhI7hZKOg@tjmaciei-mobl1> <26123866-f4fb-42f6-bd11-9123b5223b8e@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Trace: blaine.gmane.org 1501576014 9708 195.159.176.226 (1 Aug 2017 08:26:54 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 1 Aug 2017 08:26:54 +0000 (UTC) User-Agent: Mutt/1.8.0 (2017-02-23) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDELLREETMBRBR7WQDGAKGQEGVZRN3A@isocpp.org Tue Aug 01 10:26:49 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-wm0-f70.google.com ([74.125.82.70]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dcSVn-0001xH-M0 for gclcip-std-proposals@m.gmane.org; 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[2001:6b0:17:f0a0::3]) by mx.google.com with ESMTPS id 24si7103065ljb.142.2017.08.01.01.26.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Aug 2017 01:26:47 -0700 (PDT) Received-SPF: pass (google.com: domain of magfr@lysator.liu.se designates 2001:6b0:17:f0a0::3 as permitted sender) client-ip=2001:6b0:17:f0a0::3; Original-Received: from mail.lysator.liu.se (localhost [127.0.0.1]) by mail.lysator.liu.se (Postfix) with ESMTP id D3AC84009D for ; Tue, 1 Aug 2017 10:26:46 +0200 (CEST) Original-Received: from noemi.bahnhof.se (h-155-4-132-137.NA.cust.bahnhof.se [155.4.132.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.lysator.liu.se (Postfix) with ESMTPSA id A27DC40093 for ; Tue, 1 Aug 2017 10:26:46 +0200 (CEST) Mail-Followup-To: std-proposals@isocpp.org Content-Disposition: inline In-Reply-To: <26123866-f4fb-42f6-bd11-9123b5223b8e@isocpp.org> X-Virus-Scanned: ClamAV using ClamSMTP X-Original-Sender: magfr@lysator.liu.se X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of magfr@lysator.liu.se designates 2001:6b0:17:f0a0::3 as permitted sender) smtp.mailfrom=magfr@lysator.liu.se 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:33489 Archived-At: On Tue, Aug 01, 2017 at 12:32:14AM -0700, Victor Dyachenko wrote: > More examples > > const ::iovec v[] = > { > ::iovec{.iov_base = buf1, .iov_len = buf1_len }, > ::iovec{.iov_base = buf2, .iov_len = buf2_len } > }; > ::writev(fd, v, array_size(v)); > > constexpr sockaddr_in my_endpoint = > { > .sin_family = AF_INET, > .sin_port = htons(123), > .sin_addr = INADDR_ANY > }; System headers contains lots of insanity. This is copied from Linux/glibc. struct sigaction { /* Signal handler. */ #ifdef __USE_POSIX199309 union { /* Used if SA_SIGINFO is not set. */ __sighandler_t sa_handler; /* Used if SA_SIGINFO is set. */ void (*sa_sigaction) (int, siginfo_t *, void *); } __sigaction_handler; # define sa_handler __sigaction_handler.sa_handler # define sa_sigaction __sigaction_handler.sa_sigaction #else __sighandler_t sa_handler; #endif /* more members follows */ }; This also talks against disallowing member.submember = value initialization since it is quite reasonable to assume that sigaction sa = { .sa_handler = &function }; should work. /MF -- 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/20170801082645.GA21296%40noemi.bahnhof.se. .