WARNING: VB code!
Here is a very popular problem that many VB developers fail to see. Furthermore, it is hard to find once in the code. Can you spot it?
imports Microsoft.VisualBasic imports System public module MyModule sub Main dim a as integer = 0 dim b as integer = CInt(iif(a=0, 100, SomeCalc(a))) end sub private function SomeCalc(a as integer) as integer if a = 0 then throw new ArgumentNullException("a") else return CInt(100 / a) end if end function end module