X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:content-type :content-transfer-encoding:mime-version; q=dns; s=default; b=H3e jRuofdeRSPBk08ZA0kCVm3Lh5uRA0j5eMvY1qels61XHl/ZaZYDIHn/wZOuK6Pdf fgO5/H9b3VyvD9bZkId28UO8gk+wfhrUT8aXI492k+sxkYytfAHeyoPg6vFYihAb HJ0is0Dlvdgc39dOTizcVLBkz/ibiYhrJLnLBIPw= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:content-type :content-transfer-encoding:mime-version; s=default; bh=QrGL9+0jf IcJrpaZGIgCWDpvdvk=; b=aKyX8gwmQmr75BuX5lgyVdJ39eH1wdY9ziC1hYEm/ A9vFlegGCzhwUjThxPLEH8J1LF0kzb9weqjNDeeEylN/KeNeaY6Owv3lq7JPFfiQ 7+a+E5BGO87kF46PpJUD41MUarVF180CBnUYPDV0E3EXv6oULQU62BVsK2pOShKf w0= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD,SPF_PASS autolearn=ham version=3.3.2 spammy=Hx-languages-length:813, contractor X-HELO: nihcesxway.hub.nih.gov X-SBRS-Extended: Low X-IronPortListener: ces-out From: "Lavrentiev, Anton (NIH/NLM/NCBI) [C]" To: "cygwin AT cygwin DOT com" Subject: Re: Cygwin strptime() is missing "%s" which strftime() has Date: Mon, 24 Jul 2017 02:09:46 +0000 Message-ID: authentication-results: spf=none (sender IP is ) smtp.mailfrom=lavr AT ncbi DOT nlm DOT nih DOT gov; x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;BY1PR09MB0342;7: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 x-ms-office365-filtering-correlation-id: 349d7cbd-a035-41d1-eb74-08d4d2390eb0 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(300000500095)(300135000095)(300000501095)(300135300095)(22001)(300000502095)(300135100095)(2017030254075)(300000503095)(300135400095)(2017052603031)(201703131423075)(201703031133081)(201702281549075)(300000504095)(300135200095)(300000505095)(300135600095)(300000506095)(300135500095);SRVR:BY1PR09MB0342; 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spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 X-MS-Exchange-CrossTenant-originalarrivaltime: 24 Jul 2017 02:09:46.6433 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 14b77578-9773-42d5-8507-251ca2dc2b06 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR09MB0342 X-OriginatorOrg: ncbi.nlm.nih.gov Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id v6O2A8PP010250 > But that's just scanning a decimal integer to time_t. It's not a question of whether I can or can't convert a string into an integer, rather it's a question about portability of code that uses %s for both functions and expects it to work unchanged in the Cygwin environment. Also, strptime() was designed to be a reversal to strftime() (from the man-pages: the strptime() function is the converse function to strftime(3)) so both are supposed to "understand" the same basic set of formats. Because of Cygwin's strptime() missing "%s", the following also does not work even from command line: $ date +"%s" | strptime "%s" strptime: cannot make sense of `1500861577' using the given input formats Thank you, Anton Lavrentiev Contractor NIH/NLM/NCBI -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple