input(after:)

Declaration

func input(after input: Range<Date>) -> Range<Date>?

Return Value

If isPositive is true, the range input.lowerBound..<x, where x is the next larger date that this style can differentiate. If isPositive is false, the range x..<input.upperBound, where x is the next higher date this style can differentiate, or nil if there is no such x.

Discussion

If isPositive is true, the next input value maintains the same lowerBound as input, but has a differentupperBound. If isPositive is false, the next input value maintains the same upperBound as input, but as a different lowerBound.

Use this function to determine if the return value provided by discreteInput(before:) is precise enough for your use case for any input y:

guard let x = style.discreteInput(before: y) else {
    return
}

let z = style.input(after: x) ?? y

If the distance between the upperBounds of x and z is too large for the precision you require, you may want to manually probe format(_:) at a higher rate in that interval, as there is no guarantee for what the output will be in that interval.