From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Wolfgang Jenkner Newsgroups: gmane.emacs.bugs Subject: bug#19874: 25.0.50; encode-time not working as expected Date: Sun, 01 Mar 2015 23:49:29 +0100 Message-ID: <85twy4cozq.fsf@iznogoud.viz> References: <54EE0959.5080901@cs.ucla.edu> <86sidta5ak.fsf@chateau.d.if> <54EED638.8070604@cs.ucla.edu> <85385s94c9.fsf@iznogoud.viz> <54EF5ECD.2030909@cs.ucla.edu> <85mw405whp.fsf@iznogoud.viz> <86a900sbix.fsf@chateau.d.if> <85ioeo5tgf.fsf@iznogoud.viz> <8661aos5ui.fsf@chateau.d.if> <85h9u8rrsb.fsf@iznogoud.viz> <864mq8ar1g.fsf@chateau.d.if> <54F010E7.3040900@cs.ucla.edu> <8561an5k8q.fsf@iznogoud.viz> <54F10399.8010207@cs.ucla.edu> <85lhjim8ig.fsf@iznogoud.viz> <54F21A4E.70707@cs.ucla.edu> <85vbikvewg.fsf@iznogoud.viz> <54F35A32.90202@cs.ucla.edu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1425250230 986 80.91.229.3 (1 Mar 2015 22:50:30 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 1 Mar 2015 22:50:30 +0000 (UTC) Cc: 19874@debbugs.gnu.org, Ashish SHUKLA To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Mar 01 23:50:20 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YSCgk-0007Lu-Pv for geb-bug-gnu-emacs@m.gmane.org; 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Sun, 01 Mar 2015 23:49:29 +0100 User-Agent: Gnus/5.130012 (Ma Gnus v0.12) Emacs/25.0.50 (berkeley-unix) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:99941 Archived-At: On Sun, Mar 01 2015, Paul Eggert wrote: >> I was simply thinking about something like >> >> q = environ_tmp; >> for (p = environ; *p; p++, q++) >> *q = strdup(*p); >> environ = environ_tmp; > > The behavior of getenv, setenv, etc. are undefined after a program > modifies environ[0], environ[1], etc. See POSIX 8.1 > . So, > although a POSIX-conforming program can do the above, it can't use > getenv etc. afterwards. The parenthetical remark in the getenv RATIONALE section is about what the *implementation* may do. the implementation can at that point reinitialize based on the new environment. (This may include copying the environment strings into a new array and assigning environ to point to it.) The code snippet above just illustrates a possible interpretation of the parenthetical remark above.