Simplest way to calculate amount of even numbers in given range

Question

What is the simplest way to calculate the amount of even numbers in a range of unsigned integers?

An example: if range is [0...4] then the answer is 3 (0,2,4)

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Answer 1

I'd say

(max - min + 1 + (min % 2)) / 2

Edit: Erm okay for some reason I thought that (min % 2) returns 1 for even numbers.... :). The correct version is

(max - min + 1 + 1 - (min % 2)) / 2

or rather

(max - min + 2 - (min % 2)) / 2