Ilya Matveev
20 lines
360 B
Kotlin
20 lines
360 B
Kotlin
var index = 0
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interface IterableIterator : Iterator<Int> {
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operator fun iterator(): Iterator<Int> = this
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}
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val iterator = object : IterableIterator {
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override fun hasNext() = index < 5
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override fun next() = index++
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}
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fun box(): String {
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for (x in 1..5);
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for (x in iterator);
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if (index != 5) return "Fail: $index"
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return "OK"
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}
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