From 8f6ffdefc3328f011695bc0f6c3fd0d36b178dd1 Mon Sep 17 00:00:00 2001
From: Yehuda Katz <wycats@gmail.com>
Date: Mon, 13 Jan 2014 00:25:30 -0800
Subject: [PATCH] Add Clone to TreeSet

---
 src/libextra/treemap.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/libextra/treemap.rs b/src/libextra/treemap.rs
index 5a8cd94c9e9a7..8f1bd3a9df1a0 100644
--- a/src/libextra/treemap.rs
+++ b/src/libextra/treemap.rs
@@ -549,6 +549,7 @@ impl<'a, T> Iterator<&'a T> for TreeSetRevIterator<'a, T> {
 /// A implementation of the `Set` trait on top of the `TreeMap` container. The
 /// only requirement is that the type of the elements contained ascribes to the
 /// `TotalOrd` trait.
+#[deriving(Clone)]
 pub struct TreeSet<T> {
     priv map: TreeMap<T, ()>
 }
@@ -1588,6 +1589,16 @@ mod test_set {
         }
     }
 
+    #[test]
+    fn test_clone_eq() {
+      let mut m = TreeSet::new();
+
+      m.insert(1);
+      m.insert(2);
+
+      assert!(m.clone() == m);
+    }
+
     fn check(a: &[int],
              b: &[int],
              expected: &[int],