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Bug: Valid number throws an overflow error.

Posted By:      Posted Date: October 05, 2010    Points: 0   Category :.NET Framework
 

I have a major problem. Things were going great until I came across this little bug(?) which has thrown a stick in my spokes. As I will demonstrate below, it seems that when defining certain numbers Visual Studio will throw an overflow error and I have no idea how to resolve this issue.

 

Dim T As ULong = 14774537964905701134 'Overflow error in the IDE

Dim M As ULong = ULong.MaxValue '(18446744073709551615) we are below the maximum value so it should work, right?

 

The one solution I have found is that we can use the following declaration instead.

 

Dim T As ULong = ULong.Parse("14774537964905701134")

 

However, to make matters even more complicated the value in question is unknown and must be compiled using CodeDOM so using the Parse method isn't an option. Unless there is some way I can determine if that value in particular will give me an overflow error. Any solutions or workarounds would be greatly appreciated, thanks for your time.




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