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Q93435: FIX: GPF/UAE When Converting String > 32K to Double Precision

Article: Q93435
Product(s): Microsoft Visual Basic for Windows
Version(s): 3.0
Operating System(s): 
Keyword(s): 
Last Modified: 23-DEC-2000

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The information in this article applies to:

- Microsoft Visual Basic Professional Edition for Windows, version 3.0 
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SYMPTOMS
========

When converting a large string that is greater than 32K into a double precision
number, a General Protection (GP) fault or Unrecoverable Application Error (UAE)
can occur. An example of this problem is described in detail further below. This
problem also occurs with the functions CCur, CInt, CLng, CSng as well as CDbl.

WORKAROUND
==========

To work around the problem, break the string into two parts, an x part and a y
part. Then you can print both parts one after the other and the error does not
occur because each part is less than 32K. Here is an example:

  Show
  x = String(20000, "1")
  y = String(20000, "1")
  Print CDbl(x);CDbl(y)

STATUS
======

Microsoft has confirmed this to be a problem in the Standard and Professional
Editions of Microsoft Visual Basic version 2.0 for Windows. This problem was
corrected in Microsoft Visual Basic version 3.0 for Windows.

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

The following steps can be used to reproduce this problem:

1. Start VB.EXE.

2. Add the following code to the Form_Load event procedure:

     Show
     x = String(40000, "1")
     Print CDbl(x)

3. Press the F5 key to run the example and a GPF or a UAE occurs.

Additional query words: buglist2.00 fixlist3.00 2.00 3.00

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Keywords          :  
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB300Search kbVB300
Version           : :3.0
Issue type        : kbbug
Solution Type     : kbfix

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