FizzBuzz with Swift

fizzbuzz.swift

func FizzBuzz(n: Int) {
    for i in 1...n {
        if i % 15 == 0 {
            println("FizzBuzz")
        } else if i % 3 == 0 {
            println("Fizz")
        } else if i % 5 == 0 {
            println("Buzz")
        } else {
            println(i)
        }
    }
}

if C_ARGC != 2 {
    println("Wrong arguments")
    println("Usage: ./fizzbuzz Num")
} else {
    FizzBuzz( String.fromCString(C_ARGV[1]).toInt()! )
}