From 348ff4b6176a379dba943a6b6e0dbc71410f454f Mon Sep 17 00:00:00 2001
From: Jason Zaugg <jzaugg@gmail.com>
Date: Thu, 14 Feb 2013 15:10:58 +0100
Subject: SI-7128 Fix regression in copyToArray for empty arrays

---
 src/library/scala/collection/Iterator.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/library/scala/collection/Iterator.scala b/src/library/scala/collection/Iterator.scala
index 696bc4ab5c..2bb5bd1df9 100644
--- a/src/library/scala/collection/Iterator.scala
+++ b/src/library/scala/collection/Iterator.scala
@@ -1111,7 +1111,7 @@ 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}")
+    require(start >= 0 && (start < xs.length || xs.length == 0), s"start $start out of range ${xs.length}")
     var i = start
     val end = start + math.min(len, xs.length - start)
     while (i < end && hasNext) {
-- 
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