Microsoft KB Archive/831588

= FIX: The &quot;catch by&quot; reference does not work with the copy constructor that is defined in your Visual C++ .NET 2003 application =

Article ID: 831588

Article Last Modified on 4/7/2006

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APPLIES TO


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

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SYMPTOMS
In Microsoft Visual Studio .NET 2003, when you build and then run an application that you created by using Microsoft Visual C++ .NET 2003, the &quot;catch by&quot; reference does not work with the copy constructor.



CAUSE
This problem occurs because the Visual C++ .NET compiler cannot catch an exception by using the base type of the exception if the copy constructor is not public and if the exception is caught by its reference.



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) 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 --  22-Nov-2003  01:44  13.10.3324.0    933,888  C1.dll 22-Nov-2003 01:44  13.10.3324.0  2,207,744  C1xx.dll 22-Nov-2003 07:28  13.10.3324.0  1,966,080  Feacp.dll 22-Nov-2003 01:53                    5,342  Feacp.lib



WORKAROUND
To work around this problem, use one of the following methods:
 * Make the copy constructor public.
 * Catch the exception by its value instead of by its reference.



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



MORE INFORMATION
For additional information about the terminology that is used to describe Microsoft product updates, 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

Keywords: kbbug kbfix kbqfe kbvsnet2003presp1fix kbhotfixserver KB831588

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