Merge pull request #11 from tbu-/pr_ord

Add `PartialOrd` and `Ord` implementation for `ArrayVec`

src/lib.rs

@@ -1,6 +1,7 @@
 extern crate odds;
 extern crate nodrop;
 
+use std::cmp;
 use std::iter;
 use std::mem;
 use std::ptr;
@@ -642,3 +643,15 @@ impl<A: Array> Default for ArrayVec<A> {
         ArrayVec::new()
     }
 }
+
+impl<A: Array> PartialOrd for ArrayVec<A> where A::Item: PartialOrd {
+    fn partial_cmp(&self, other: &ArrayVec<A>) -> Option<cmp::Ordering> {
+        (**self).partial_cmp(other)
+    }
+}
+
+impl<A: Array> Ord for ArrayVec<A> where A::Item: Ord {
+    fn cmp(&self, other: &ArrayVec<A>) -> cmp::Ordering {
+        (**self).cmp(other)
+    }
+}