Chris A. Brandlehner BLOG | Is this a compiler bug in Lotus Notes 6?

Friday 28th, May 2004

Is this a compiler bug in Lotus Notes 6?05/28/2004 06:56 PM

I came along a very strange problem with the Lotus Notes 6 compiler today. Just to save time I tried to use 1024 * 1024 instead of 1048576. The Lotus Notes Designer Client refused to save this with error "overflow". When using a variable containing 1024 instead of using the number itself there seems to be no problem. Weird!

Sub Click(Source As Button)
Dim number As Double
Dim a As Double
a = 1024
' just to proof that Long is big enough
number = 1048576
'next line will work fine
number = a * 1024
' this would not work, why??
' number = 1024 * 1024
Print number
End Sub

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Comments:

1. Christian Brandlehner06/04/2004 15:34:46
Homepage: http://chris.brandlehner.at

This problem has been assigned SPR # PCOY5ZJBNH by IBM Lotus Support.
The same problem occurs also for additions:

A lower limit is also reached with addition

Sub Click(Source As Button)
Dim number As Double
number = 32768
msgbox number
End Sub

However try set the same value using multiplication, you will get a compile error 'Overflow..'

Sub Click(Source As Button)
Dim number As Double
number = 30000 + 2768 ' (Which will equal 32768)
msgbox number
End Sub

2. Christian Brandlehner08/12/2004 21:43:12
Homepage: http://chris.brandlehner.at

IBM Lotus Support confirmed that this is a bug although there are no plans to fix this problem in the 6.x codestream.

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