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Diffstat (limited to 'src/library/scala/collection/BufferedIterator.scala')
| -rw-r--r-- | src/library/scala/collection/BufferedIterator.scala | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/library/scala/collection/BufferedIterator.scala b/src/library/scala/collection/BufferedIterator.scala index e6e97d584c..1424ef2fd0 100644 --- a/src/library/scala/collection/BufferedIterator.scala +++ b/src/library/scala/collection/BufferedIterator.scala @@ -24,5 +24,11 @@ trait BufferedIterator[+A] extends Iterator[A] { */ def head: A + /** Returns an option of the next element of an iterator without advancing beyond it. + * @return the next element of this iterator if it has a next element + * `None` if it does not + */ + def headOption : Option[A] = if (hasNext) Some(head) else None + override def buffered: this.type = this } |