Evgeniy.Zhelenskiy
27 lines
776 B
Kotlin
Vendored
27 lines
776 B
Kotlin
Vendored
// IGNORE_BACKEND: JVM
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// WITH_STDLIB
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// KT-44529
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// WORKS_WHEN_VALUE_CLASS
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// LANGUAGE: +ValueClasses
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OPTIONAL_JVM_INLINE_ANNOTATION
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value class InlineDouble3(val values: DoubleArray) {
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operator fun iterator(): DoubleIterator = IteratorImpl(values)
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}
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// This iterator returns the first 3 elements of this.values
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private class IteratorImpl(private val values: DoubleArray) : DoubleIterator() {
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private var index = 0
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override fun hasNext(): Boolean = index < 3
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override fun nextDouble(): Double = values[index++]
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}
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fun box(): String {
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val values = doubleArrayOf(1.0, 2.0, 3.0, 4.0)
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var result = ""
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for (i in InlineDouble3(values)) {
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result += i.toString().substring(0, 1)
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}
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return if (result == "123") "OK" else "Fail: $result"
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}
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