220 17988 <59ED9069-2650-44E2-B00E-0E56ED37B83D@gmail.com> article Path: news.gmane.org!not-for-mail From: David Krauss Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: First draft: Non-copyable call wrapper, std::unique_function Date: Wed, 20 May 2015 00:06:56 +0800 Lines: 67 Approved: news@gmane.org Message-ID: <59ED9069-2650-44E2-B00E-0E56ED37B83D@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2098\)) Content-Type: multipart/alternative; boundary="Apple-Mail=_E1A6F440-2B6C-476F-8975-5972BDFBA697" X-Trace: ger.gmane.org 1432051632 7495 80.91.229.3 (19 May 2015 16:07:12 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 19 May 2015 16:07:12 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCW25A7E3QCRBJV75WVAKGQE673VRNY@isocpp.org Tue May 19 18:07:06 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-ob0-f200.google.com ([209.85.214.200]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Yuk2q-0007lm-FM for gclcip-std-proposals@m.gmane.org; Tue, 19 May 2015 18:07:04 +0200 Original-Received: by obfe9 with SMTP id e9sf27837547obf.1 for ; Tue, 19 May 2015 09:07:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:content-type:subject:message-id:date:to :mime-version:x-original-sender:x-original-authentication-results :reply-to:precedence:mailing-list:list-id:list-post:list-help :list-archive:list-subscribe:list-unsubscribe; bh=PknpEK1R+V26krnwBrikWe3xnO1fmfcgdzS6IfZzWBk=; b=l0/+Y+p2UCIDxDVSi+ZtmCBmjjwHEea8jnOAXp25ESiWq/O7EFMhnQDSRsYnb7l+Zp uM8Yc8FhpsSQQ8zNDVLRDegXym1WMHVrtu+G8FhJRUuFFt7s4YZbOHgJUPiAk4f3yUJV atO4VZXqRfBpVLnApNVgcbBw7UYLiwHJ3fxhqYpORhJTuBau6UASVXsSDW9rO1UkxSU9 EE3LcgGGgkUDrTLUsn0CLZWyzBYheeNLCd2+IxyJ/Z4hRaZtABNQY/8/mbU738V9M1RV pk3agB5ixsuB5JM+7ctioFowt4cl+8zQsvQK3oPCNTgerBAWbAnUts9zBzG00FVHMTmm 171Q== X-Gm-Message-State: ALoCoQnkuE25tlo5gpIWRKIGgIPXxWJzrb/9IFHfLLLzI+ZW482F4LnhhfALsMN3f22WHdul+H+x X-Received: by 10.50.111.194 with SMTP id ik2mr26261798igb.4.1432051623492; Tue, 19 May 2015 09:07:03 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.182.24.39 with SMTP id r7ls98331obf.9.gmail; Tue, 19 May 2015 09:07:02 -0700 (PDT) X-Received: by 10.202.213.70 with SMTP id m67mr23641566oig.26.1432051622815; Tue, 19 May 2015 09:07:02 -0700 (PDT) Original-Received: from mail-ob0-x232.google.com (mail-ob0-x232.google.com. [2607:f8b0:4003:c01::232]) by mx.google.com with ESMTPS id nq4si39530oeb.18.2015.05.19.09.07.02 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 19 May 2015 09:07:02 -0700 (PDT) Received-SPF: pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:4003:c01::232 as permitted sender) client-ip=2607:f8b0:4003:c01::232; Original-Received: by obfe9 with SMTP id e9so15901133obf.1 for ; Tue, 19 May 2015 09:07:02 -0700 (PDT) X-Received: by 10.182.86.9 with SMTP id l9mr25098088obz.61.1432051622681; Tue, 19 May 2015 09:07:02 -0700 (PDT) Original-Received: from [172.20.10.2] ([121.54.44.93]) by mx.google.com with ESMTPSA id my16sm8348410obc.25.2015.05.19.09.07.00 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 19 May 2015 09:07:01 -0700 (PDT) X-Mailer: Apple Mail (2.2098) X-Original-Sender: potswa@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of potswa@gmail.com designates 2607:f8b0:4003:c01::232 as permitted sender) smtp.mail=potswa@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=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:17988 Archived-At: --Apple-Mail=_E1A6F440-2B6C-476F-8975-5972BDFBA697 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Here=E2=80=99s a first draft of a non-copyable polymorphic call wrapper pro= posal: http://bit.ly/uniqfun > This proposal describes a variation of std::function supporting non-copya= ble target objects. It removes the copy constructor, and adds in-place cons= truction of target objects. >=20 All comments welcome. Doesn=E2=80=99t look too scary, I just might prototyp= e it. Inspired by the recent discussion, "smart function pointer proposal." --=20 ---=20 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 e= mail 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-proposa= ls/. --Apple-Mail=_E1A6F440-2B6C-476F-8975-5972BDFBA697 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=UTF-8 Here=E2=80=99s a f= irst draft of a non-copyable polymorphic call wrapper proposal: http://bit.ly/uniqfun

This proposal describ= es a variation of std::function supporting non-copyable = target objects. It removes the copy constructor, and adds in-place construc= tion of target objects.

All comments = welcome. Doesn=E2=80=99t look too scary, I just might prototype it.

Inspired by the recent d= iscussion, "smart function pointer= proposal."

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