KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q245020: BUG: Bus Error When Copying and Pasting In Browse Window

Article: Q245020
Product(s): Microsoft FoxPro
Version(s): MACINTOSH:3.0b
Operating System(s): 
Keyword(s): kbvfp300b kbXBase KbDBFDBC kbGrpDSFox
Last Modified: 03-AUG-2000

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

- Microsoft Visual FoxPro for Macintosh, version 3.0b 
-------------------------------------------------------------------------------

SYMPTOMS
========

Visual FoxPro for Macintosh quits with a type 2 error, or the Macintosh computer
stops responding, reporting a bus error in some cases, when copying and pasting
in a Browse window. An error of type 11 may also appear.

CAUSE
=====

This is known to happen when the field that is the copy source and copy
destination is defined as eight characters wide. Microsoft has tested this on
Macintosh operating systems 7.5.3, OS 8.1, OS 8.5, OS 8.5.1 and OS 9. We presume
the problem happens on other Macintosh operating systems as well.

RESOLUTION
==========

If it is possible, do not use character fields with a width of eight to copy and
paste into.


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
---------------------------

1. Run the following code to create a new table, add two records and browse it:

  CREATE TABLE test (test1 c(8), test2 c(10))
  INSERT INTO test (test1,test2) VALUES ("Hello","Goodbye")
  APPEND BLANK
  BROWSE

2. The test1 field is a character field that is eight characters wide. Copy the
  data in it with either CMD+C or with the Copy command on the Edit menu.

3. Move to the second record in the test1 field by using the down arrow key.

4. Paste the data into the second record with either CMD+V or the Paste command
  on the Edit menu.

5. If the Macintosh computer does not stop responding or if Visual FoxPro does
  not quit with an error of type 2, continue copying and pasting in the test1
  field.

Cutting and pasting also causes the computer to quit. Copy or cut and then
pasting in a character field wider or narrower than eight characters has not
been reported to be a problem.

Additional query words: lock lockup freeze hang kbDSE

======================================================================
Keywords          : kbvfp300b kbXBase KbDBFDBC kbGrpDSFox 
Technology        : kbHWMAC kbOSMAC kbVFPsearch kbAudDeveloper kbVFP300bMac
Version           : MACINTOSH:3.0b
Issue type        : kbbug
Solution Type     : kbnofix

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

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.