Fix doctest of ExactSizeIterator::is_empty

rozbb · Jul 18, 2016 · 7b2a03f · 7b2a03f
1 parent f2e73d9
commit 7b2a03f
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/libcore/iter/traits.rs b/src/libcore/iter/traits.rs
@@ -530,7 +530,9 @@ pub trait ExactSizeIterator: Iterator {
     /// Basic usage:
     ///
     /// ```
-    /// let mut one_element = [0].iter();
+    /// #![feature(exact_size_is_empty)]
+    ///
+    /// let mut one_element = 0..1;
     /// assert!(!one_element.is_empty());
     ///
     /// assert_eq!(one_element.next(), Some(0));