func roundedToNextSignificant()

in Source/Charts/Utils/ChartUtils.swift [75:88]

• 13 lines of code
• 2 McCabe index (conditional complexity)

    func roundedToNextSignificant() -> Double
    {
        guard
            !isInfinite,
            !isNaN,
            self != 0
            else { return self }

        let d = ceil(log10(self < 0 ? -self : self))
        let pw = 1 - Int(d)
        let magnitude = pow(10.0, Double(pw))
        let shifted = (self * magnitude).rounded()
        return shifted / magnitude
    }