Q168379: BUG: Debugger Does Not Step Over to __finally Code Block

Article: Q168379
Product(s): Microsoft C Compiler
Version(s): 5.0,6.0
Operating System(s): 
Keyword(s): kbtool kbVC500bug kbVC600bugkbbuglist
Last Modified: 13-FEB-2002

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The information in this article applies to:

- The Integrated Debugger, used with:
   - Microsoft Visual C++, 32-bit Enterprise Edition, versions 5.0, 6.0 
   - Microsoft Visual C++, 32-bit Professional Edition, versions 5.0, 6.0 
   - Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
   - Microsoft Visual C++.NET (2002) 
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SYMPTOMS
========

The debugger does not Step-Over to code in __finally block from a __try block.

CAUSE
=====

The __finally code is executed via a "call" instead of a "jmp instruction.

RESOLUTION
==========

The workaround is to do a Step-Into (F11 key) instead of Step-Over (F10 key) in
the debugger.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

Compile the following code with debug information.

      #include <iostream.h>

      void main ()
      {
     int counter=0;

      __try {

     counter++;//SET A BREAKPOINT HERE
     cout << "In try block" << endl;

            }

      __finally
            {
        counter++;
        cout << "In finally block" << endl;
            }

      cout << "Exit, counter=" << counter << endl;

      }

Set a breakpoint on the line shown above. Start the debugger with Debug Go or by
pressing the F5 key. Step-Over (or, press F10) from that point onward. The
debugger exits the program without going to the __finally block.

Additional query words:

======================================================================
Keywords          : kbtool kbVC500bug kbVC600bug kbbuglist
Technology        : kbVCsearch kbAudDeveloper kbIntegratedDebugger
Version           : :5.0,6.0
Issue type        : kbbug

=============================================================================

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