220 39419 <5f2e7892-9182-308f-c62f-12136ba961a8@gmail.com> article Path: news.gmane.org!.POSTED!not-for-mail From: Matthew Woehlke Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Revive the unified call syntax. 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[66.194.253.20]) by smtp.googlemail.com with ESMTPSA id t11-v6sm1486524qkt.28.2018.07.26.11.21.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 26 Jul 2018 11:21:53 -0700 (PDT) Openpgp: preference=signencrypt In-Reply-To: <7d32d6f0-77fd-4be5-a96e-0169bd5921c6@isocpp.org> Content-Language: en-US X-Original-Sender: mwoehlke.floss@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="pRT1rQu/"; spf=pass (google.com: domain of mwoehlke.floss@gmail.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=mwoehlke.floss@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:39419 Archived-At: On 2018-03-14 21:18, yakitori1010@gmail.com wrote: > i very hope revive Unified Call Syntax.i say as UCS. > UCS is very visualizerble function chain.so good. Apologies for the thread necro, and this isn't *quite* in the same vein... but I had the same thought just the other day. (That said, I will also acknowledge that I think I might have voted *against* UCS a while back. Eh, well... it has concerns as well as benefits, what else can I say?) Specifically, I wanted to use this little helper: template auto get(Container const& c, Key const& key) -> decltype(std::addressof(*c.find(key))) ....but alas, it doesn't work on vectors. I could rewrite it using `std::find`, but does that DTRT on associative containers that have some form of fast look-up? And do I want `std::find`, or `find` in an associated namespace? Because... it's super awkward to write the latter (no `using namespace` inside of `decltype`). Now, I realize in this specific instance I can probably answer those questions... that's not the point. This comes up also with `swap`, `begin` and so forth. UCS could drastically simplify this sort of thing. -- Matthew -- 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/5f2e7892-9182-308f-c62f-12136ba961a8%40gmail.com. .