Microsoft KB Archive/818609

= FIX: The debugger reports incorrectly that it steps into lines that are not executed when you step through code in the Visual C++ debugger in Visual Studio .NET 2002 =

Article ID: 818609

Article Last Modified on 10/18/2005

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APPLIES TO


 * Microsoft Visual Studio .NET 2002 Professional Edition
 * Microsoft Visual Studio .NET 2002 Enterprise Architect
 * Microsoft Visual Studio .NET 2002 Enterprise Developer
 * Microsoft Visual Studio .NET 2002 Academic Edition

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SYMPTOMS
In Microsoft Visual Studio .NET 2002, the debugger reports incorrectly that it steps into lines that are not executed. This problem occurs regardless of whether the project uses Managed Extensions for C++ or unmanaged C++.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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 -  16-Apr-2003  14:51  13.0.9692.0  2,105,344  C1xx.dll 16-Apr-2003 14:52  13.0.9692.0  1,753,088  C2.dll



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



Steps to reproduce the problem
 In Visual Studio .NET 2002, create a new Managed C++ Application project.  Paste the following code in the project. ... ... int _tmain(void) {   char *buf; try {       buf = new char[512]; if (buf == 0) throw &quot;Error allocating memory&quot;; }catch ( char *str) { std::cout << &quot;Exception: &quot; << str << '\n'; }
 * 1) include

return 0; }   Set a breakpoint at the following line of code. buf = new char[512];  Start the debugger.  Use the F10 key to step through the code. The debugger steps through the lines in the following order. buf = new char[512]; if (buf == 0) throw &quot;Error allocating memory&quot;; The code that appears in this project will not enter the IF statement. However, the debugger reports incorrectly that it steps into the following line. throw &quot;Error allocating memory&quot;; </li></ol>

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

Keywords: kbbug kbfix kbqfe kbvs2002sp1sweep KB818609

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