'\' operator does not support floats?

Question

Dim x As Integer = 1.8 \ 1 

Error:

Option Strict On disallows implicit conversions from 'Double' to 'Long'

What Long??

EDIT:

Apparently Visual Basic attempts to convert any floating-point numeric expression to Long. OK, this part is clear.

Now, I can use the

CType((Math.Round(myResultingSingle)), Integer)

but what for MSDN tells that \ operator supports all the types if in reality it supports only Long as expression1 ?!...

Answer 1

From the MSDN page \ Operator (Visual Basic) :

Before performing the division, Visual Basic attempts to convert any floating-point numeric expression to Long

That Long. Because Double to Long is a narrowing conversion, and Option Strict is on, you must explicitly ask for it to happen.

Answer 2

Here (in Remarks section) is the answer:

Before performing the division, Visual Basic attempts to convert any floating-point numeric expression to Long. If Option Strict is On, a compiler error occurs.

Answer 3

The integer division operator requires integral operands. Two possible ways to do it:

• Dim x As Integer = CInt(1.8) \ 2
• Dim x As Integer = CInt(1.8 / 2)