Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com Message-ID: <000d01c0e507$64435540$0401a8c0@ntserv> From: "Stan Malyshev" To: Subject: Fw: BUG REPORT: unexpected floating point behavior Date: Fri, 25 May 2001 03:42:27 -0700 Organization: XP Consulting, Inc. MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 ----- Original Message ----- From: Stan Malyshev To: cygwin@cygwin.com Cc: Tennyson Lee Sent: Friday, May 25, 2001 3:40 AM Subject: BUG REPORT: unexpected floating point behavior Consider the following unexpected output of a simple loop that increments a floating value by 0.1 at every iteration: #include int main() { float x; for (x = 0; x < 4; x += 0.1f) { printf("x=%f\n", x); } return 0; } ------------------ x=0.000000 x=0.100000 x=0.200000 x=0.300000 x=0.400000 x=0.500000 x=0.600000 x=0.700000 x=0.800000 x=0.900000 x=1.000000 x=1.100000 x=1.200000 x=1.300000 x=1.400000 x=1.500000 x=1.600000 x=1.700000 x=1.800000 x=1.900000 x=2.000000 x=2.100000 x=2.200000 x=2.300000 x=2.400000 x=2.500000 x=2.600000 x=2.700000 x=2.799999 x=2.899999 x=2.999999 x=3.099999 x=3.199999 x=3.299999 x=3.399999 x=3.499999 x=3.599999 x=3.699999 x=3.799999 x=3.899998 x=3.999998 -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple