Article: Q253317
Product(s): Microsoft C Compiler
Version(s): WINDOWS:2.5,2.6; winnt:6.0
Operating System(s):
Keyword(s): kbVC kbVC600bug kbGrpDSVCDB kbGrpDSMDAC kbDSupport kbADO250bug kbADO260bug kbATM kbado2
Last Modified: 23-AUG-2001
-------------------------------------------------------------------------------
The information in this article applies to:
- Microsoft Visual C++, 32-bit Enterprise Edition, version 6.0
- Microsoft Visual C++, 32-bit Professional Edition, version 6.0
- Microsoft Visual C++, 32-bit Learning Edition, version 6.0
- ActiveX Data Objects (ADO), versions 2.5, 2.6, 2.7
-------------------------------------------------------------------------------
SYMPTOMS
========
When you compile an ActiveX Data Objects (ADO) application in Visual C++ 6.0
using the #import directive with version 2.5 or 2.6 of Msado15.dll, you may
receive the following warning:
warning C4146: unary minus operator applied to unsigned type, result still
unsigned
RESOLUTION
==========
Although this problem will most likely have no effect on your application, you
can suppress the warning with the following code:
#pragma warning(push)
#pragma warning(disable:4146)
#import "c:\program files\common files\system\ado\MSADO15.DLL"
#pragma warning(pop)
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
---------------------------
Save the following code as a .cpp file, and then compile and run the program with
Visual C++. Accept the default workspace when prompted.
#import "C:\Program Files\Common Files\SYSTEM\ADO\MSADO15.DLL" rename_namespace("ado20")
using namespace ado20;
#include <iostream>
using namespace std;
void main ()
{
cout <<" You should see the warning in compiler's debug window"<<endl;
}
Additional query words:
======================================================================
Keywords : kbVC kbVC600bug kbGrpDSVCDB kbGrpDSMDAC kbDSupport kbADO250bug kbADO260bug kbATM kbado270
Technology : kbVCsearch kbAudDeveloper kbADOsearch kbADO250 kbADO260 kbVC600 kbVC32bitSearch kbADO270
Version : WINDOWS:2.5,2.6; winnt:6.0
Issue type : kbbug
Solution Type : kbpending
=============================================================================