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Unsigned Short in VB?

platiumstar
platiumstar asked
on
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Last Modified: 2012-06-27
How do you have Unsigned Short in VB? I know this doesn't exist, but I'm porting some stuff from C to VB and I need this data type.
any ideas?
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Commented:
Isn't it a Byte (if not what is the range)
Commented:
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Commented:
That having been said, personally I would use a structure:
Type tUShort
  MSB As Byte
  LSB As Byte
End Type
Dim UShort as tUShort

Author

Commented:
I guess the worst comes to worst, I'll have to use that tUShort as you suggested. but I'm trying to avoid it as much as possible.

Although the document tell you to declare uint in C as long in VB, it doesn't tell you what to do with unsigned short, I declared it as just integer, but too many problems when doing network stuff where you have to shift the bits around.

for example: when I do
htons(PortNumber) where PortNumber = 2001, it gave me the value of -12025. Now this convert to hex is FFFF7D10, which would be correct if not for the FFFF part. This really bites.


Commented:
I grabbed the wrong line in the Books Online file.
That should have been:
SHORT      ByVal variable As Integer      An expression that evaluates to an Integer

If you don't want to use tUShort, you can convert find it's true value with this code:
Dim lTrueVal As Long
If nShort >= 0 then
  lTrueVal = CLng(nShort)
Else
  lTrueVal = 32767 + Abs(CLng(nShort))
End If

Author

Commented:
thanks, I'll  give it a shot.
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