[Mono-bugs] [Bug 23960] New - Bug in Math.Round

bugzilla-daemon@rocky.ximian.com bugzilla-daemon@rocky.ximian.com
28 Apr 2002 00:41:23 -0000


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Changed by totte@labs2.com.

http://bugzilla.ximian.com/show_bug.cgi?id=23960

--- shadow/23960	Sat Apr 27 20:41:23 2002
+++ shadow/23960.tmp.21099	Sat Apr 27 20:41:23 2002
@@ -0,0 +1,55 @@
+Bug#: 23960
+Product: Mono/Class Libraries
+Version: unspecified
+OS: 
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Major
+Component: System
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: totte@labs2.com               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Bug in Math.Round
+
+Math.Round is broken when called for negative numbers.
+
+This example code show the problem :
+
+using System;
+
+class StringTest
+{
+	static void Main(string[] args)
+	{
+		double test = 2.510;
+		Console.WriteLine("{0}", Math.Round(test));
+		test = 2.490;
+		Console.WriteLine("{0}", Math.Round(test));
+
+		test = -2.510;
+		Console.WriteLine("{0}", Math.Round(test));
+		test = -2.490;
+		Console.WriteLine("{0}", Math.Round(test));
+	}
+}
+
+Should return :
+
+3
+2
+-3
+-2
+
+but with our corlib it gets:
+
+3.0000000
+2.0000000
+-2.0000000
+-2.0000000
+
+(Note that our lib also has different default formating)