X-Recipient: archive-cygwin AT delorie DOT com X-Spam-Check-By: sourceware.org Date: Wed, 28 Jan 2009 18:24:22 +0100 From: Corinna Vinschen To: newlib AT sourceware DOT org Cc: cygwin AT cygwin DOT com Subject: [Fwd: Possible sscanf %f conversion glitch] Message-ID: <20090128172422.GA16129@calimero.vinschen.de> Reply-To: newlib AT sourceware DOT org Mail-Followup-To: newlib AT sourceware DOT org, cygwin AT cygwin DOT com MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.17 (2007-11-01) 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 I'm forwarding this problem to the newlib list. I checked against the latest Cygwin from CVS and the problem still exists, afaics. ----- Forwarded message from KHMan ----- > Date: Wed, 28 Jan 2009 23:19:07 +0800 > From: KHMan > Subject: Possible sscanf %f conversion glitch > To: cygwin AT cygwin DOT com > > Hi all, > > Someone ran into a problem with sscanf %f conversion on the Lout list. It > appeared that one specific case fails. I am running cygwin-1.5.25-15. Test > cases: > > #include > int main() > { > char *foo1 = "10i"; > char *foo2 = "0i"; > char *foo3 = "0.0i"; > char *foo4 = "1.0i"; > char *foo5 = "0.1i"; > float f; > printf("%d ", sscanf(foo1, "%f", &f)); printf("%f\n", f); > printf("%d ", sscanf(foo2, "%f", &f)); printf("%f\n", f); > printf("%d ", sscanf(foo3, "%f", &f)); printf("%f\n", f); > printf("%d ", sscanf(foo4, "%f", &f)); printf("%f\n", f); > printf("%d ", sscanf(foo5, "%f", &f)); printf("%f\n", f); > } > > As the scanf man page specifies, 'i' is not supposed to be converted, only > the number part is supposed to be recognized. > > On Cygwin: > $ ./test > 1 10.000000 > 0 10.000000 > 1 0.000000 > 1 1.000000 > 1 0.100000 > > On Linux (Ubuntu 8.04) and MinGW, the second case succeeds, the result > being the same as the third case. I've done some googling, and haven't > found anything related to this behaviour. > > -- > Cheers, > Kein-Hong Man (esq.) > Kuala Lumpur, Malaysia ----- End forwarded message ----- Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/