SI-7837 quickSort, along with Ordering[K], may result in stackoverflow because the code uses '==' instead of 'equiv'

== instead of equiv (from Ordering) was used by mistake.  Fixed.

Also created a test to make sure that == is not used by throwing an exception if it is (as suggested by Jason).

1 files changed, 2 insertions, 2 deletions

diff --git a/src/library/scala/util/Sorting.scala b/src/library/scala/util/Sorting.scala
index 276e157f55..2e021ad9d9 100644
--- a/src/library/scala/util/Sorting.scala
+++ b/src/library/scala/util/Sorting.scala
@@ -141,14 +141,14 @@ object Sorting {
         var done = false
         while (!done) {
           while (b <= c && x(b) <= v) {
-            if (x(b) == v) {
+            if (x(b) equiv v) {
               swap(a, b)
               a += 1
             }
             b += 1
           }
           while (c >= b && x(c) >= v) {
-            if (x(c) == v) {
+            if (x(c) equiv v) {
               swap(c, d)
               d -= 1
             }