plus

infix operator fun plus(other: Int): Int
infix operator fun plus(other: NonZeroInt): Int
infix operator fun plus(other: PositiveInt): PositiveInt
infix operator fun plus(other: StrictlyPositiveInt): StrictlyPositiveInt
infix operator fun plus(other: NegativeInt): Int
infix operator fun plus(other: StrictlyNegativeInt): Int

Adds the other value to this value.