DOCUMENT:Q191663  21-JUL-2001  [visualc]
TITLE   :PRB: Unresolved const type_info, __CxxThrowException
PRODUCT :Microsoft C Compiler
PROD/VER:WINDOWS:2.0 2.1
OPER/SYS:
KEYWORDS:kbCPPonly kbVC500 kbVC600 kbOSWinCE200 kbOSWinCE210 kbOSWinCE211

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

 - Microsoft Windows CE Toolkit for Visual C++ 6.0 
 - Microsoft Windows CE Embedded Toolkit for Visual C++ 5.0 
 - Microsoft Windows CE Platform Builder, version 2.11 
-------------------------------------------------------------------------------

SYMPTOMS
========

Building an application results in one or more of the following errors:

   

   file.obj : error LNK2001: unresolved external
        symbol "const  type_info::`vftable'" (??_7type_info@@6B@)

   

   file.obj : error LNK2001: unresolved external
        symbol __CxxThrowException

CAUSE
=====

This product does not currently support C++ exception handling or run-time Type
Information.

RESOLUTION
==========

Remove all references to C++ exception handling from the project. These
include:

 - /GX switch

 - /GR switch

 - Use of catch-and-throw keywords

STATUS
======

This behavior is by design.

NOTE: Microsoft Windows CE Toolkit for Visual C++ 6.0 now generates warning C4531
when compiling for Windows CE version 2.10 and later.

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

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

The following example generates the previously mentioned errors when built for a
Windows CE target platform:

      #include <windows.h>

      int WINAPI WinMain(
          HINSTANCE hInstance,
          HINSTANCE hPrevInstance,
          LPTSTR lpCmdLine,
          int nCmdShow )
   {
     throw 1;
     return 0;
   }

Additional query words: kbDSupport

======================================================================
Keywords          : kbCPPonly kbVC500 kbVC600 kbOSWinCE200 kbOSWinCE210 kbOSWinCE211 
Technology        : kbVCsearch kbAudDeveloper kbSDKSearch kbWinCETKVCSearch kbWinCEETKSearch kbWinCESDKSearch kbWinCESearch kbWinCESDK211 kbWinCETK600VC kbWinCEETKVC500
Version           : WINDOWS:2.0 2.1
Issue type        : kbprb

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

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.

Copyright Microsoft Corporation 2001.