Microsoft KB Archive/872941

= FIX: You may experience inaccurate results when you compile a project in Visual Studio .NET 2003 with either the /Og or the /Ob2 flags for optimization and then try to perform floating-point operations =

Article ID: 872941

Article Last Modified on 5/15/2006

-

APPLIES TO


 * Microsoft Visual Studio .NET 2003 Enterprise Architect
 * Microsoft Visual Studio .NET 2003 Enterprise Developer
 * Microsoft Visual Studio .NET 2003 Academic Edition

-





SYMPTOMS
In Microsoft Visual Studio .NET 2003, you may use the /Og and /Ob2 flags for optimizations. When you compile your project, you may experience inaccurate results from mathematical operations on floating-point values.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Visual Studio .NET 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version       Size       File name --  09-Jul-2004  18:33  13.10.4191.0  1,867,776  C2.dl   09-Jul-2004  18:12  13.10.4191.0     86,016  Cl.exe



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

