From -5260909982954529816 X-Google-Thread: 7894ca11fe,8390690191732735,start X-Google-Attributes: gid7894ca11fe,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news2.google.com!news1.google.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Fri, 18 Dec 2009 15:10:08 -0600 Return-Path: To: (Usenet) From: Scott Meyers Newsgroups: comp.std.c++ Subject: Why is std::array an aggregate? Organization: albasani.net Sender: cppmods@cs.rpi.edu Approved: stephen.clamage@sun.com Message-ID: Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-Original-Date: Thu, 17 Dec 2009 22:52:14 -0800 X-Submission-Address: std-c++@netlab.cs.rpi.edu Date: Fri, 18 Dec 2009 15:00:50 CST Lines: 16 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-xvFMsXRYkvOB4RsJc99QVgcGwB5XruyXqtTaJPnRIMFAboF9aFl86vbObjzxcgflLnAdT7JJOK6lZBd!4OeKFvpRrFLvUOFgdpmmFt6MAbD29Q3FUMQ6UFk0sUUgB0P+JdvtHwo3 X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 Xref: g2news1.google.com comp.std.c++:1933 In TR1, std::tr1::array needed to be an aggregate so that it could be brace-initialized. To offer the same capability for C++0x's std::array, the class could simply declare a constructor taking a std::initializer_list. So why is std::array an aggregate? Making it a non-aggregate would permit e.g., giving it a constructor taking a pair of iterators. Thanks for all illumination. Scott -- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@netlab.cs.rpi.edu] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.comeaucomputing.com/csc/faq.html ]