220 32716 <7e3ee19d-f758-4d38-a015-0c474424073d@isocpp.org> article Path: news.gmane.org!.POSTED!not-for-mail From: Jakob Riedle Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Why do we include a Matrix and Vector class into the proposed 2D Graphics Library? Date: Fri, 9 Jun 2017 04:15:02 -0700 (PDT) Lines: 96 Approved: news@gmane.org Message-ID: <7e3ee19d-f758-4d38-a015-0c474424073d@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_1054_557559726.1497006902246" X-Trace: blaine.gmane.org 1497006905 14316 195.159.176.226 (9 Jun 2017 11:15:05 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 9 Jun 2017 11:15:05 +0000 (UTC) To: ISO C++ Standard - Future Proposals Original-X-From: std-proposals+bncBCX2XNFO6MPRBN4G5LEQKGQEXDXADQI@isocpp.org Fri Jun 09 13:15:00 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-oi0-f71.google.com ([209.85.218.71]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dJHsZ-0003Oy-JE for gclcip-std-proposals@m.gmane.org; Fri, 09 Jun 2017 13:14:59 +0200 Original-Received: by mail-oi0-f71.google.com with SMTP id s3sf15181664oia.4 for ; Fri, 09 Jun 2017 04:15:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=date:from:to:message-id:subject:mime-version: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=TPG0f9L9RvweEELUIZwHqkAMCsDn3MVNc0eDmww/XH4=; b=s16oNzEx5c8aY4nDLws9wr9wH7NwldHnQ6pvjekzwhFN29IKSRqiS+GbijiLA0UNTp mb5Aq7EfBbQc6Za/a9FNcfC5gIXaJ9FNUNm40iUQeO5prxBp4J+VdEPobaK3bxMcKj42 acsqY6N04doATJHc6pt6LadF6ZsZ6/5ALmvELY0j3f04luNcMr6TwKQpEpoLCgrCPWVu XX3Mb+x0fdEyyUgdB6JD3v6cG6IGnFYNS3CN87kii5Yc9qDyY4wkGa0stoSL67Oyy9xZ UEi1/6i21ZboCTIxpqPLY3sWARKUnM4s7MhvSH4XtpuXaCErds0V++Em9G3LA/ktv01T KTxw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:message-id:subject:mime-version: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=TPG0f9L9RvweEELUIZwHqkAMCsDn3MVNc0eDmww/XH4=; b=cF9Z5p2zkW9xB5U3iqJRHxF5Zd2/4e6mKuvQr5cyVpIg7e9Lt5BCF1hPDbphStu2uj 0obacC5sp0ok9Esj6DOkQyglACdv1xaC/hEKLNGPLMXr50Qzj1stWXvwb2UaOuEBHG+j mOGRzeLJq+OJNYXWg9RRjbdst+ZV7V/UpUBg1FPyndOzF4brHq2fIqsUb10t7RVt5qsw Y74keF0P7mviNGQHc46ddxfO/vT+lNkKZARda/l867kjsjUr4nwOs+jSxeJYsvAP3bTO ZLQPFb5L/vikm5WkGMP2G1H0mOfYUO9qA4QVovyWhAWrD6sUzkoyEvh/1zexWE7U+HZJ OtjA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:message-id:subject:mime-version :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=TPG0f9L9RvweEELUIZwHqkAMCsDn3MVNc0eDmww/XH4=; b=ZzNytIWqib8ffTCnhZPkYAWlytF/og0APMJwkIEZpYuvRRROoehPVGIv/l8bJcGVw9 ix0UxLU0Zl/yJ1VpZ797h8spV+TMmqWv8u8sIiCbGBBjOg4Ai1ASYIO2DRiGLnIf+/9G X+mUU2ejEOC9A5V4d0jDxaXNa0Na5v0uDyvojEoUA9z9QS9ZhIGm6QRwswdm1END2JR0 CiluMSE6xHI09SsvC5GxgeHDLmXvkD9xY8xKvQ/5sQm5chOHRpwrMl9zqUuvBwf5o/rw /NuXa1/VdBfrRjJiJjMwx2lbAWxjE31vASfVWd8dISnRLxdGfA8hNHTER1aG9RZHVMdU fu7A== X-Gm-Message-State: AODbwcB6O/CTmXjUJ0MaT2E/WLgTWgvlQp0qBrQGfHPED8MvEAhzO+YQ r2odhkUWr6TXAeCP X-Received: by 10.157.35.130 with SMTP id t2mr7040488otb.36.1497006903785; Fri, 09 Jun 2017 04:15:03 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.157.84.28 with SMTP id j28ls10159182oth.10.gmail; Fri, 09 Jun 2017 04:15:02 -0700 (PDT) X-Received: by 10.157.15.157 with SMTP id d29mr980886otd.11.1497006902951; Fri, 09 Jun 2017 04:15:02 -0700 (PDT) X-Original-Sender: jakob.riedle@gmail.com 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:32716 Archived-At: ------=_Part_1054_557559726.1497006902246 Content-Type: multipart/alternative; boundary="----=_Part_1055_1644072671.1497006902246" ------=_Part_1055_1644072671.1497006902246 Content-Type: text/plain; charset="UTF-8" Hello Folks, concerning Proposal P0267R1-4 (the proposed 2D Graphics extension): Recently stated the question, whether there is any interest in something like a matrix/vector/tensor class extension. The Consensus there was, that because we are confronted with the opinions of a bunch of different stakeholders, we should first approach the concept of Matrices from a "conceptional" perspective before we even think about a specific implementation. That means, we should first come up with a set of *Concepts *that provide interfaces for the idea of multidimensional Arrays. Now what is being done in P0267R1-4 is the exact opposite of that: Come up with an arbitrary, highly context dependent Matrix class that is not reusable for anyone but the few people that want to work with 2D Graphics. I have the strong feeling that this is absolutely not desirable from a standpoint of standardization: *We want a C++ standard Library that is consistent in itself and does not reinvent the wheel for every specific extension it gets.* Please let me know your opinions on this! Cheers and have a nice weekend, Jakob -- 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/7e3ee19d-f758-4d38-a015-0c474424073d%40isocpp.org. ------=_Part_1055_1644072671.1497006902246 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello Folks,

concerning Proposal P= 0267R1-4=C2=A0(the proposed 2D Graphics extension):

R= ecently stated the question, whether there is any interest in something lik= e a matrix/vector/tensor class extension.
The Consensus there was= , that because we are confronted with the opinions of a bunch of different = stakeholders,
we should first approach the concept of Matrices fr= om a "conceptional" perspective before we even think about a spec= ific implementation.

That means, we should first c= ome up with a set of Concepts that provide interfaces for the idea o= f multidimensional Arrays.


Now what= is being done in=C2=A0P0267R1-4=C2=A0is the exact opposite of tha= t:
Come up with an arbitrary, highly context dependent Matrix cla= ss that is not reusable for anyone but the few people that want to work wit= h 2D Graphics.


I have the strong fe= eling that this is absolutely not desirable from a standpoint of standardiz= ation:
We want a C++ standard Library that is consistent in it= self and does not reinvent the wheel for every specific extension it gets.<= /b>


Please let me know your opinion= s on this!

Cheers and have a nice weekend,
Jakob

--
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To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposa= ls+unsubscribe@isocpp.org.
To post to this group, send email to std-proposals@isocpp.org.
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