DOCUMENT:Q172256 18-JUN-2001 [vbwin] TITLE :FIX: RISC: CByte Doesn't Fail on Negative Values in Native Exe PRODUCT :Microsoft Visual Basic for Windows PROD/VER:WINDOWS:5.0,97 OPER/SYS: KEYWORDS:kbVBp500bug kbVS97sp2fix kbvbp500sp2fix ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Visual Basic Enterprise Edition for Windows, version 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== In a native executable, passing a negative value to the CByte function does not generate an error. It should cause an Overflow error. STATUS ====== Microsoft has confirmed this to be a problem in the Microsoft products that are listed at the beginning of this article. This bug has been fixed in Visual Studio 97 Service Pack 2. For additional information on the Visual Studio 97 Service Pack 2, click the article number below to view the article in the Microsoft Knowledge Base: Q170365 INFO: Visual Studio 97 Service Packs - What, Where, and Why For a list of the Visual Basic 5.0 bugs that were fixed in the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base: Q171554 INFO: Visual Basic 5.0 Fixes in Visual Studio 97 Service Pack 2 MORE INFORMATION ================ This problem does not occur in the IDE or in P-Code executables. This problem does not occur in the Intel version of the product regardless of how the application is compiled. Once the RISC version of Visual Studio 97 Service Pack 2 is installed, code such as: Dim b as Byte b = CByte(-2) correctly results in an Overflow error regardless of how the application is compiled. Additional query words: ====================================================================== Keywords : kbVBp500bug kbVS97sp2fix kbvbp500sp2fix Technology : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB500Search kbVB500 Version : WINDOWS:5.0,97 Issue type : kbbug Solution Type : kbfix ============================================================================= 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.