B4R Question ... don't know why - error or not?:-))

[Hans- Joachim Krahe]

code#
Dim diffx As Float
Dim endcountNextXR As UInt
Dim endcountXR As UInt
endcountNextXR = 23000
endcountXR = 25000

diffx = endcountNextXR - endcountXR
Log( "diffX = ", diffx) ' diffX = 63536 !!! wrong !!!


'----------------------------------------------------------------------------------------------------------

Dim diffx As Float
Dim endcountNextXR As UInt
Dim endcountXR As UInt
endcountNextXR = 23000
endcountXR = 25000

diffx = endcountNextXR
diffx = diffx - endcountXR
Log( "diffX = ", diffx) ' diffX = -2000 !!! right!!!



'----------------------------------------------------------------------------------------------------------
code#/
tried on Mega with B4R 2.2

 

[Erel]

Please use [code]code here...[/code] tags when posting code.

The result of UInt - UInt is a UInt (unsigned int).

You will get the correct result if you store it in an Int:

Dim endcountNextXR As UInt = 23000
Dim endcountXR As UInt = 25000
Dim i As Int = endcountNextXR - endcountXR
Log(i)