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Excel/Unknown Macro statement

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Question
I have a macro that has the statement:
 If X <> 0# Then
If I output the value of 0# it comes up as zero.
Any idea why this is there like that?

Answer
Ian,

It is zero.  


You can check out the purpose in the immediate window in the Visual Basic Editor:

? typename(0)
Integer
? typename(0#)
Double

so you can see that the # casts the zero constant as a double.

This might be appropriate if X is typed as double as well.  You can think of it as explicit casting - since if you don't, excel/vba will have to do an internal conversion to do the comparison if the types are not of equal type.   In actual practice, it might not make any difference in how the code executes.   

--
Regards,
Tom Ogilvy

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Tom Ogilvy

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Selected as an Excel MVP by Microsoft since 1999. Answering Excel questions in Allexperts since its inception in 2001. Able to answer questions on almost all aspects of Excel's internal capabilities. If seeking a VBA solution, please specify that in your question itself so I give you the answer you want. [Excel has weak protection - if you are distributing an application, I don't answer questions on how to protect your project from your users.]

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