20 Variadic Functions

Intermediate

Variadic functions can be called with any number of trailing arguments.

This function will take any number of ints as arguments. Cangjie converts trailing values to an array.

Variadic functions can be called in the usual way with individual arguments.

You can also pass normal array of values to variadic function.

variadic_functions.cj

func sum(arr: Array<Int64>): Int64 {
    println(arr)
    var total: Int64 = 0
    for (i in arr) {
        total += i
    }
    println(total)
    return total
}

main() {
    sum(1, 2)

    sum(1, 2, 3)

    let nums = Array<Int64>([1, 2, 3, 4])
    sum(nums)
}

// [1, 2]
// 3
// [1, 2, 3]
// 6
// [1, 2, 3, 4]
// 10