Swift Operating System version check

OSCheck.swift

extension Double {
    
    var operatingSystemIsSameOrHigher: Bool {
        let major = Int(self)
        let minor = Int(round((self - Double(major)) * 10))
        let version = NSOperatingSystemVersion(majorVersion: major, minorVersion: minor, patchVersion: 0)
        return NSProcessInfo().isOperatingSystemAtLeastVersion(version)
    }
    
    var operatingSystemIsLower: Bool {
        return !operatingSystemIsSameOrHigher
    }
}