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Diffstat (limited to 'src')
-rw-r--r-- | src/library/scala/collection/Iterator.scala | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/library/scala/collection/Iterator.scala b/src/library/scala/collection/Iterator.scala index cbf8cc4931..696bc4ab5c 100644 --- a/src/library/scala/collection/Iterator.scala +++ b/src/library/scala/collection/Iterator.scala @@ -1111,9 +1111,10 @@ trait Iterator[+A] extends TraversableOnce[A] { * $willNotTerminateInf */ def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Unit = { + require(start >= 0 && start < xs.length, s"start $start out of range ${xs.length}") var i = start - val end = start + math.min(len, xs.length) - while (hasNext && i < end) { + val end = start + math.min(len, xs.length - start) + while (i < end && hasNext) { xs(i) = next() i += 1 } |