gistfile1.txt

$ cat test.swift 

cat test.swift 
func quicksort_swift(inout a:[CInt], start:Int, end:Int) {
    if (end - start < 2){
        return
    }
    var p = a[start + (end - start)/2]
    var l = start
    var r = end - 1
    while (l <= r){
        if (a[l] < p){
            l += 1
            continue
        }
        if (a[r] > p){
            r -= 1
            continue
        }
        var t = a[l]
        a[l] = a[r]
        a[r] = t
        l += 1
        r -= 1
    }
    quicksort_swift(&a, start:start, end:r + 1)
    quicksort_swift(&a, start:r + 1, end:end)
}

var a_swift:[CInt] = [0,5,2,8,1234,-1,2, 2983, 2023, 2, 0, -1, 343, -37, 5, 2, 39483, -193]

quicksort_swift(&a_swift, start:0, end:a_swift.count)


## Ubuntu 15.10

$ swiftc -O test.swift -o test
$ time ./test

real    0m0.014s
user    0m0.008s
sys     0m0.008s

## Mac OSX 10.11.1 

$ swiftc -O test.swift -o test
$ time ./test 

real	0m0.015s
user	0m0.005s
sys	0m0.005s