Sha256: 2674129570a448a538d346a3bb5d7865fa398261a57520210946ab264c0338be
Contents?: true
Size: 1.24 KB
Versions: 71
Compression:
Stored size: 1.24 KB
Contents
struct Clock: Equatable, CustomStringConvertible {
var hours: Int
var minutes: Int
init(hours: Int, minutes: Int = 0) {
self.hours = hours
self.minutes = minutes
normalize()
}
var description: String { return self.toString }
func add(minutes: Int) -> Clock {
return Clock(hours: self.hours, minutes: self.minutes + minutes)
}
func subtract(minutes: Int) -> Clock {
return add(minutes: -minutes)
}
private var toString: String {
let h = String(format: "%02d", self.hours)
let m = String(format: "%02d", self.minutes)
return h + ":" + m
}
private mutating func normalize() {
if minutes >= 60 {
self.hours += self.minutes / 60
self.minutes = self.minutes % 60
}
while self.minutes < 0 {
self.hours -= 1
self.minutes += 60
}
if self.hours >= 24 {
self.hours = self.hours % 24
}
while self.hours < 0 {
self.hours += 24
}
}
}
private extension String {
init(_ clock: Clock) {
self = clock.description
}
}
func == (lhs: Clock, rhs: Clock) -> Bool {
return lhs.description == rhs.description
}
Version data entries
71 entries across 71 versions & 1 rubygems