docs: make HashSet::retain doctest more clear

2023-01-07 17:08:04 +13:00 · 2023-01-07 17:08:04 +13:00 · 43bec83266
commit 43bec83266
parent 84f22e44c5
1 changed files with 1 additions and 1 deletions
--- a/library/std/src/collections/hash/set.rs
+++ b/library/std/src/collections/hash/set.rs
@ -317,7 +317,7 @@ impl<T, S> HashSet<T, S> {
    ///
    /// let mut set = HashSet::from([1, 2, 3, 4, 5, 6]);
    /// set.retain(|&k| k % 2 == 0);
-    /// assert_eq!(set.len(), 3);
+    /// assert_eq!(set, HashSet::from([2, 4, 6]));
    /// ```
    ///
    /// # Performance