220 20300 article Path: news.gmane.org!not-for-mail From: Nicol Bolas Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Progress for universal template parameters Date: Sat, 5 Sep 2015 11:52:55 -0700 (PDT) Lines: 58 Approved: news@gmane.org Message-ID: References: <66e52f79-a8b0-4489-bd52-f13a95edf9f3@isocpp.org> <5b09a8b3-ccb4-44da-9348-fafc8dffdff2@isocpp.org> <8d9b10c4-5487-4639-9ed7-6754ecb132f9@isocpp.org> <07ee1c98-102a-4e38-a9f1-6c4508de5801@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_2046_1229170000.1441479175803" X-Trace: ger.gmane.org 1441479185 13039 80.91.229.3 (5 Sep 2015 18:53:05 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 5 Sep 2015 18:53:05 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCEKFTV6ZUMBBCPUVSXQKGQE4F5VGIQ@isocpp.org Sat Sep 05 20:53:00 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-io0-f200.google.com ([209.85.223.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZYIaA-0002Ou-Bk for gclcip-std-proposals@m.gmane.org; Sat, 05 Sep 2015 20:52:58 +0200 Original-Received: by iofb144 with SMTP id b144sf97890262iof.1 for ; Sat, 05 Sep 2015 11:52:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:message-id:in-reply-to:references: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=jNJPqLaH444CzshhZMd/utpJ0uTF3lS0AbkmDUtFODY=; b=jQyZaxqVS2Zm23NVd0GrWYp1F/IF9t4JwOSUBZlhFOar1cIwT8Edgup2cr6AU2sqUs VO3jiHl6n4Cbw3edExvDU8Vqc7/zVdTmIebXEnNuru2y0Hj95BmVs6Jid5bEXUGWyn/u aMGm0OCYmhbmx8wPe4e+wXQr3BSfR7DEXWdtIoqq1V52C+o4PYZOicFcs6RdOsZBI1Zm G+QXxIvldsxL0sQalwwCgCO13Lqi8lKF4YCWxPDyTXQ55x4AUeKHKpQ393h9CaLCCaK9 pTEmY2ty2U2fPxi3e0uIBAC+UKiv1GBC8shR2qObsrt19b+7af/pemGQBA6vJW1wgrAN e8KQ== 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:in-reply-to:references :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=jNJPqLaH444CzshhZMd/utpJ0uTF3lS0AbkmDUtFODY=; b=hzwG2lJj+Sfwbow4N+q38RYwXIQFvU0dDTQmBAXYjvPeLGRruTKQpINj2wmsrcG//N ar+08XQAlRR3686bV8o8DmWbjWvET1XSdKDHdBU5ayEJeVxiFFwmctZOpxyg0k8IuTdr vmjZmghp3UuUnRmtRT0vEJLpn6qGaNih5fDmt+8/dOkn4aL5rWA662vEp5HjXU3aq2vY iq2Eeat/2hxr+2QbPnwflOllfhcHkQ/1aPTdNfMrFyjcKEQLpVqzA1wPdajZJkcYFIPo +SWcS0KtPNKNHvKjbLSVPej7sK8IyJeLcwJa1DuWgmfpA9r0f7Vt1XtZwJZb5dAqu6eZ rXMg== X-Gm-Message-State: ALoCoQnFSvPUrKMQeq7bD7mywmmcJqu1O2F0gPzDgFg4a9rE8hFrUvV7R/gv6xcW/A7oqLTnkuQ6 X-Received: by 10.182.191.106 with SMTP id gx10mr10085652obc.36.1441479177690; Sat, 05 Sep 2015 11:52:57 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.50.56.111 with SMTP id z15ls483743igp.32.canary; Sat, 05 Sep 2015 11:52:57 -0700 (PDT) X-Received: by 10.50.79.193 with SMTP id l1mr130734igx.2.1441479177015; Sat, 05 Sep 2015 11:52:57 -0700 (PDT) In-Reply-To: X-Original-Sender: jmckesson@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:20300 Archived-At: ------=_Part_2046_1229170000.1441479175803 Content-Type: multipart/alternative; boundary="----=_Part_2047_1953981408.1441479175803" ------=_Part_2047_1953981408.1441479175803 Content-Type: text/plain; charset=UTF-8 On Saturday, September 5, 2015 at 2:41:14 PM UTC-4, Columbo wrote: > > A is not accepting everything. A is solely accepting class or alias > templates; > So A accepts a type template, which could have any number of parameters of any kind. It's not clear what you can actually do with such a type template of unknown nature. Your `arbitrary` doesn't actually do anything with 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. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. ------=_Part_2047_1953981408.1441479175803 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Saturday, September 5, 2015 at 2:41:14 PM UTC-4, Columb= o wrote:
A is not accepting everything. A is solely accepting class or ali= as templates;

So A accepts a type template, whic= h could have any number of parameters of any kind. It's not clear what = you can actually do with such a type template of unknown nature. Your `arbi= trary` doesn't actually do anything with it.

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