percentage postfix operator

percent.swift

postfix operator %

public postfix func %(int: Int) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: Int8) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: Int16) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: Int32) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: Int64) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: UInt) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: UInt8) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: UInt16) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: UInt32) -> CGFloat {
    return CGFloat(int) / 100.0
}

public postfix func %(int: UInt64) -> CGFloat {
    return CGFloat(int) / 100.0
}

usage.swift

100% // 1.0
0%   // 0.0
80%  // 0.8


UIColor(white: 0%, alpha: 80%)