KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q103716: INFO: Debug Session Still Active Even After Last "}" of Main

Article: Q103716
Product(s): Microsoft C Compiler
Version(s): WINDOWS:
Operating System(s): 
Keyword(s): kbide kbVC
Last Modified: 22-JUL-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Visual Workbench for Windows, used with:
   - *EDITOR Please do not choose this product*Microsoft Visual C++ 32-bit Edition* use 241, 265, 225, versions 1.0, 2.0, 2.1, 4.0 
   - *EDITOR Please do not choose this product*Visual C++ for Windows* use 1699, versions 1.0, 1.5 
-------------------------------------------------------------------------------

SUMMARY
=======

When stepping over the last curly brace "}" of main, WinMain, or LibMain, the
message box

  There is no source line debugging information

appears and prompts for an OK. This indicates that the debugging session is still
active and that there is no source code available for the remaining executable
statements.

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

This is an expected behavior of the integrated debugger. To terminate the
debugging session, press F5 (GO). This results in the message box:

  Process <X> terminated, exit code <X> (X).

Pressing ALT+F5 to stop the debugging session also works. However, using ALT+F5
is not recommended because this method completely stops the debugger. The
program's exit code is not executed and other resources may not be freed.

It is possible to step past the closing curly brace by switching to mixed source
and assembly mode. Press CTRL+F7 or select the View menu and Choose Mixed
Source/Asm. This enables you to step into the assembly code for the exit code.
The exit code terminates the program and is executed by the run-time library
after all the executable statements in a program are completed. When the final
line of assembly code is reached, the above message will appear.

Additional query words:

======================================================================
Keywords          : kbide kbVC 
Technology        : kbVSsearch kbAudDeveloper
Version           : WINDOWS:
Issue type        : kbinfo

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

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.