Floating point exception in Msadrh15!CRowsetHelper::ProcessAccessor (830497)


The information in this article applies to:

  • Microsoft Data Access Components 2.8

SYMPTOMS

A floating point exception occurs inside a process and you do not reset the floating point flags by using the _fpreset function. When you then open a Microsoft ActiveX Data Objects (ADO) 2.8 Recordset, a seemingly unrelated floating point exception may occur inside the internal ADO CRowsetHelper::ProcessAccessor function when the function reads a field value from the ADO Recordset.

CAUSE

The CRowsetHelper::ProcessAccessor function in certain cases can copy data by using a floating point assignment and does this without first resetting the floating point flags. This can cause a floating point exception to occur if the flags already indicate a floating point error such as underflow or overflow.

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, Microsoft recommends that you wait for the next MDAC 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 has the file attributes (or later) 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     
   -------------------------------------------------------
   17-Oct-2003  19:59  2.80.1022.44 53,248  Msadrh15.dll
Note For a list of all the hotfixes available for MDAC 2.8, click the following article number to view the article in the Microsoft Knowledge Base:

839801 FIX: Hotfixes are available for MDAC 2.8

WORKAROUND

To avoid the problem, reset the floating point flags after you appropriately handle any floating point exceptions in your program. You can reset the flags by using the _fpreset() function.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

REFERENCES

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft Software updates

Modification Type:MajorLast Reviewed:4/7/2006
Keywords:KB830497 kbAudDeveloper
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