Path: csiph.com!feeder.erje.net!2.us.feeder.erje.net!news.glorb.com!peer03.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!Xl.tags.giganews.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Tue, 16 Feb 2016 07:10:01 -0600 Return-Path: Sender: lang-cpp-request@vandevoorde.com Approved: c.l.c.m@bazarov.com Message-ID: Newsgroups: comp.lang.c++.moderated From: Joe Bentley Subject: Is required? Organization: unknown Content-Type: text/plain; charset=ISO-8859-1 X-Original-Date: Mon, 15 Feb 2016 23:01:12 -0800 (PST) X-Submission-Address: lang-cpp-submit@vandevoorde.com Date: Tue, 16 Feb 2016 07:03:40 CST Lines: 12 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-o6JbaM2nzOMYQrcMr87fh8CCdNSmGklL3ZRlp5bpAHgr0N7iNPr/EDzU6HK8tlziTFHLhi9vcdTSQpb!JmPT0sZ8x+aesRikOx7DkDaaFqu7JTY0S+2DF4VFrYCYc8f3hHRqhAjv3DNInGCmcEshf4MSO+Qk!REDfr/pN4L0= 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 X-Original-Bytes: 1643 X-Received-Bytes: 1755 X-Received-Body-CRC: 920173447 Xref: csiph.com comp.lang.c++.moderated:7369 Is the header file required? I have noticed that in some implementations it appears to be automatically included. Maybe it's picked up by or some other common header file, but I can't find any reference on this. Does the "standard" have anything to say on its inclusion by other header files? -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]