PRB: Unresolved const type_info, __CxxThrowException

ID: Q191663

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 kbWinCE200 kbWinCE210 kbWinCE211
Version : WINDOWS:2.0 2.1
Platform : WINDOWS
Issue type : kbprb