Random floating point double in Inclusive Range

Question

We can easily get random floating point numbers within a desired range [X,Y) (note that X is inclusive and Y is exclusive) with the function listed below since

Answer 1

What would be a situation where you would NEED a floating point value to be inclusive of the upper bound? For integers I understand, but for a float, the difference between between inclusive and exclusive is what like 1.0e-32.