220 13938 <8a74f08b-7453-4d1a-9f20-bc1d3866617c@isocpp.org> article Path: news.gmane.org!not-for-mail From: Myriachan Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Reconstruct function idea Date: Wed, 15 Oct 2014 14:17:54 -0700 (PDT) Lines: 74 Approved: news@gmane.org Message-ID: <8a74f08b-7453-4d1a-9f20-bc1d3866617c@isocpp.org> References: Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_5533_1128287717.1413407875193" X-Trace: ger.gmane.org 1413407887 13375 80.91.229.3 (15 Oct 2014 21:18:07 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 15 Oct 2014 21:18:07 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDKLT4PURQHRBBOJ7OQQKGQEWT2SKRI@isocpp.org Wed Oct 15 23:18:01 2014 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-qc0-f199.google.com ([209.85.216.199]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XeVxG-0000RP-RL for gclcip-std-proposals@m.gmane.org; Wed, 15 Oct 2014 23:17:58 +0200 Original-Received: by mail-qc0-f199.google.com with SMTP id i17sf4275163qcy.6 for ; Wed, 15 Oct 2014 14:17:57 -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 :x-original-sender:reply-to:precedence:mailing-list:list-id :list-post:list-help:list-archive:list-subscribe:list-unsubscribe :content-type; bh=DjAno2SjtmPn6KRnqfgWR0mHYDILqytUUwuuuXeTPZY=; b=h8vyYr+jWKlSCbEcZXT4e4nX4c1mMjbSCYS+HZ6pmYYhjswtY41nOmCFKuH+xVzMLL eOtHmceOnvmHu8CVelfCqWBEfhE4ZV4K+2KNsJMZCO0QGPh694h9MdkdNju2Y3bY4C4I ykUJEd92blP07FbZq0JGFqNNgjHjM9lLjZN5W8Bmg3J2G5ZadASZ2WEujruVl+9x6VJp qXnZjfLte61eUh+k+cmraQ1ubhVDpQpvsoOfAe9yKbZC5LOlU6EGJlxOEd1FYUwkzt+8 d23rwNRI2cKZVr7sA1UDot7i3+0lvSFiHdlkkbgcnAsIZ8HDvQJSxo/Lx0BlO+9i5/F3 KFyw== 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:x-original-sender:reply-to:precedence :mailing-list:list-id:list-post:list-help:list-archive :list-subscribe:list-unsubscribe:content-type; bh=DjAno2SjtmPn6KRnqfgWR0mHYDILqytUUwuuuXeTPZY=; b=WfGIeBh0m9hnVvzOZiKhH85P5Z1ZUQ61BfeEcPZZUGfm0z+HFvyacoHVCoxw3bxXDF Eeay+uNLD9Rgy+Z7RAxY4o1ad65+9VXTFecuhTKMQlEdEGPc/XqEM1WNM0Fr0ahZTXEi Q/Kyd0XyfJGHeI0Tr0EuLhZ/WPzHUDckw0t+Pz21zGEvwk9/xc5t3U4ZsyjXmhDW91fN BF5vK9pnqnSj4Z10N0ilfB4Dc8c0WQTNnjYbopcck5mX6CujugRcv7DlgjCzPckoLzpL pM1VuLryC93ZYkQ3Ymr89XRAEx0XxgrfMoqM9Nt0sZ/eGG4jGXDwVQQjpYzqEgshmyRF rZTw== X-Gm-Message-State: ALoCoQnMkRFzvY6h3hMUFXS2UiIQWS3iFoynlnSNT6I8cao51efXbYodQH23ZZ1ih2ZE/dTP7ZOH X-Received: by 10.236.206.113 with SMTP id k77mr7130935yho.56.1413407877670; Wed, 15 Oct 2014 14:17:57 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.107.9.157 with SMTP id 29ls309411ioj.97.gmail; Wed, 15 Oct 2014 14:17:56 -0700 (PDT) X-Received: by 10.50.73.4 with SMTP id h4mr9444igv.0.1413407876971; Wed, 15 Oct 2014 14:17:56 -0700 (PDT) In-Reply-To: X-Original-Sender: myriachan@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:13938 Archived-At: ------=_Part_5533_1128287717.1413407875193 Content-Type: text/plain; charset=UTF-8 On Wednesday, October 15, 2014 2:04:38 PM UTC-7, Nevin ":-)" Liber wrote: > > On 15 October 2014 16:01, Myriachan > > wrote: > >> What about a library function called std::reconstruct or similar to >> destroy and reconstruct an object in place? >> > > It's called std::experimental::optional. > -- > Nevin ":-)" Liber > (847) > 691-1404 > While that is a nice feature, it's not the same as needing to do this to types that weren't created as std::optional. Melissa -- --- 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_5533_1128287717.1413407875193 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On Wednesday, October 15, 2014 2:04:38 PM UTC-7, Nevin ":-= )" Liber wrote:
On 15 October 2014 16:01, Myriachan <myri...@gmail.com> wrote:
What = about a library function called std::reconstruct or similar to destroy and = reconstruct an object in place?

I= t's called std::experimental::optional.
--
 Nevin ":-)"= Liber  <mailto:ne...@evilover= lord.com>  (847) 691-1404

While that is a nice feature, it's not th= e same as needing to do this to types that weren't created as std::optional<T>.
Melissa

--

---
You received this message because you are subscribed to the Google Groups &= quot;ISO C++ Standard - Future Proposals" group.
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.
Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/<= /a>.
------=_Part_5533_1128287717.1413407875193-- .