Fixed bug in Iterator.iterate which would lead ...

Fixed bug in Iterator.iterate which would lead to a runtime exception
under some circumstances due to inadequate laziness in calculating the
next element. No review.

1 files changed, 5 insertions, 0 deletions

diff --git a/test/files/run/iterator-iterate-lazy.scala b/test/files/run/iterator-iterate-lazy.scala
new file mode 100644
index 0000000000..73886f192b
--- /dev/null
+++ b/test/files/run/iterator-iterate-lazy.scala
@@ -0,0 +1,5 @@
+object Test {
+  def main(args: Array[String]): Unit = {
+    Iterator.iterate(1 to 5 toList)(_.tail).takeWhile(_.nonEmpty).map(_.head).toList
+  }
+}