220 40234 article Path: news.gmane.org!.POSTED!not-for-mail From: Tony V E Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: std::between ? 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[209.85.220.41]) by mx.google.com with SMTPS id b5-v6sor1095886oiy.36.2018.09.27.10.47.23 for (Google Transport Security); Thu, 27 Sep 2018 10:47:23 -0700 (PDT) Received-SPF: pass (google.com: domain of tvaneerd@gmail.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; X-Received: by 2002:aca:bdc4:: with SMTP id n187-v6mr3886088oif.3.1538070443045; Thu, 27 Sep 2018 10:47:23 -0700 (PDT) In-Reply-To: <7b85d688-9013-407d-b7d3-10d28494e960@isocpp.org> X-Original-Sender: tvaneerd@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=jTb4ZnM6; spf=pass (google.com: domain of tvaneerd@gmail.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=tvaneerd@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:40234 Archived-At: --00000000000065b7e50576ddeedc Content-Type: text/plain; charset="UTF-8" We could argue about the order of params, and what std::between(x, -100, 0) means, or you could look at std::clamp(). On Thu, Sep 27, 2018 at 11:53 AM Addy wrote: > I do this pattern often: > > if (0 < x && x < 100) > > And would love a simple `std::between()` that would take two arguments and > an optional third (compare function) argument. > > Similar to this: https://gist.github.com/martinmoene/9410391 > > templated > bool std::between(T lower, T upper, Compare comp) > { > return comp(lower) && comp(upper); > } > > Does anything like this exist? Should I propose it!? > > -- > 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/7b85d688-9013-407d-b7d3-10d28494e960%40isocpp.org > > . > -- Be seeing you, Tony -- 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/CAOHCbitYKvMhz1kkjZCk5Ep1vkFU9ZUwH7kZ%2Bm9_tyG%3DueEdcw%40mail.gmail.com. --00000000000065b7e50576ddeedc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
We could argue about the order of params, and what std::be= tween(x, -100, 0) means, or you could look at std::clamp().

On Thu, Sep 27, 2018 at 11:53 AM = Addy <aclaure@gmail.com> wro= te:
I do this patt= ern often:

if (0 < x && x < 100)

And would love a simple `std::between()` that would take tw= o arguments and an optional third (compare function) argument.

templated<typename T, typename Compa= re>
bool std::between(T lower, T upper, Compare comp)
{
=C2=A0 =C2=A0 return comp(lower) && comp(upper);
}

Does anything like this exist? Should I pr= opose it!?

--
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--
Be= seeing you,
Tony

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