It just states, inc()/dec() shouln't return anothe...

# announcements

[bernhard]

It just states, inc()/dec() shouln't return another instance than it is called on
like

class Report {
    var qualified = 0
    var disqualified = 0

    operator fun inc() = Report().apply { 
        qualified = [e-mail] + 1
        disqualified = [e-mail]
    }
    operator fun dec() = Report().apply {
        qualified = [e-mail]
        disqualified = [e-mail] + 1
    }
}