220 19974 article Path: news.gmane.org!not-for-mail From: NDos Dannyu Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Obtaining the number of arguments of a function Date: Sun, 23 Aug 2015 01:03:57 -0700 (PDT) Lines: 50 Approved: news@gmane.org Message-ID: Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_490_24826131.1440317037667" X-Trace: ger.gmane.org 1440317042 16946 80.91.229.3 (23 Aug 2015 08:04:02 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 23 Aug 2015 08:04:02 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCX7FRO67EHRB3X44WXAKGQEX4VMO7Y@isocpp.org Sun Aug 23 10:04:01 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-qk0-f197.google.com ([209.85.220.197]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZTQG0-0003UL-8x for gclcip-std-proposals@m.gmane.org; Sun, 23 Aug 2015 10:04:00 +0200 Original-Received: by qkda128 with SMTP id a128sf11049413qkd.1 for ; Sun, 23 Aug 2015 01:03:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:message-id:subject:mime-version :content-type:x-original-sender:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=p2p74iRZmVbPmp5vZgc9mdi3kRymzOuPVp0daDGQdKk=; b=VrCHLcU9b4gz/19bkAHIHgBetpZFJBnS+qRGKFYP8vJikEVZC/appq0JZgozkpa0QF YNoYPNLXakvnGG3/c5Sxh6ZMwYvCkxkTsbMkSyWeGD+HDJlV22vcc4i1PfdGJMpjfV1Q WHmRGB/hOaEu9ngsWnBb5huXVXuEtxotcOmxGYIyXbrbiwZKcVG6vgxIaBrRSM1X+bP4 f+4QRkn5rTHb4xje+mENflsfPL95yzPLnEfx61PmXe0cZkdJ5jEoMA68qYUPA5aSotEB gBjYDvq3bBUl2oKtlMy6v3UoDBgWANYhgqtQ145g24ojBtz0PNeAaVn5U88FHoNlWjIy zFfw== X-Gm-Message-State: ALoCoQmlnOOEl4Uy4vapdAfKw5XAscZAkPY4brKiq69N6/Epov9hgfwUQFDCPPjjE84xzt3ziaB2 X-Received: by 10.129.103.130 with SMTP id b124mr15909596ywc.8.1440317039389; Sun, 23 Aug 2015 01:03:59 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.7.79 with SMTP id 76ls1099184ioh.91.gmail; Sun, 23 Aug 2015 01:03:58 -0700 (PDT) X-Received: by 10.50.137.7 with SMTP id qe7mr166482igb.17.1440317038662; Sun, 23 Aug 2015 01:03:58 -0700 (PDT) X-Original-Sender: ndospark320@naver.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:19974 Archived-At: ------=_Part_490_24826131.1440317037667 Content-Type: multipart/alternative; boundary="----=_Part_491_1281651848.1440317037668" ------=_Part_491_1281651848.1440317037668 Content-Type: text/plain; charset=UTF-8 Why this function isn't in the stantard library? It's too easy to implement! *template * *constexpr size_t count_args(R (*)(Args...)) noexcept {* * return sizeof...(Args);* *}* -- --- 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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_491_1281651848.1440317037668 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Why this function isn't in the stantard library? = It's too easy to implement!
template <class R, cla= ss ...Args>
constexpr size_t count_args(R (*)= (Args...)) noexcept {
=C2=A0=C2=A0=C2=A0 return = sizeof...(Args);
}

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