From bc43e1739234727ebddaf475c2851eab00353324 Mon Sep 17 00:00:00 2001
From: Ethan Dagner <napen123@gmail.com>
Date: Sat, 23 Sep 2017 11:47:21 -0600
Subject: [PATCH] Add doc example to HashMap::hasher

---
 src/libstd/collections/hash/map.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/libstd/collections/hash/map.rs b/src/libstd/collections/hash/map.rs
index 96af2272578..f28577d257e 100644
--- a/src/libstd/collections/hash/map.rs
+++ b/src/libstd/collections/hash/map.rs
@@ -691,6 +691,17 @@ impl<K, V, S> HashMap<K, V, S>
     /// Returns a reference to the map's [`BuildHasher`].
     ///
     /// [`BuildHasher`]: ../../std/hash/trait.BuildHasher.html
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use std::collections::HashMap;
+    /// use std::collections::hash_map::RandomState;
+    ///
+    /// let hasher = RandomState::new();
+    /// let map: HashMap<isize, isize> = HashMap::with_hasher(hasher);
+    /// let hasher: &RandomState = map.hasher();
+    /// ```
     #[stable(feature = "hashmap_public_hasher", since = "1.9.0")]
     pub fn hasher(&self) -> &S {
         &self.hash_builder