<Slow forEach in Kotlin for ranges> I used the fol...

# stackoverflow

[user]

Slow forEach in Kotlin for ranges
I used the following code to measure performance of different syntax constructions in Kotlin

fun time(what: String, body: () -> Int) {
val start = System.currentTimeMillis()
var sum = 0

repeat(10) {
sum += body()
}

val end = System.currentTimeMillis()

println("$what: ${(end - start) / 10}")
}

val n = 200000000
val rand = Random()
val arr = IntArray(n) { rand.nextInt() }

time("for in range") {
var sum = 0
for (i in (0 until n))
sum +=...