Implement From<[(K, V); N]> for HashMap

Author: 4LT

src/map.rs

@@ -1580,6 +1580,26 @@ where
     }
 }
 
+// The default hasher is used to match the std implementation signature
+impl<K, V, A, const N: usize> From<[(K, V); N]> for HashMap<K, V, DefaultHashBuilder, A>
+where
+    K: Eq + Hash,
+    A: Default + Allocator + Clone,
+{
+    /// # Examples
+    ///
+    /// ```
+    /// use hashbrown::HashMap;
+    ///
+    /// let map1 = HashMap::from([(1, 2), (3, 4)]);
+    /// let map2: HashMap<_, _> = [(1, 2), (3, 4)].into();
+    /// assert_eq!(map1, map2);
+    /// ```
+    fn from(arr: [(K, V); N]) -> Self {
+        arr.into_iter().collect()
+    }
+}
+
 /// An iterator over the entries of a `HashMap`.
 ///
 /// This `struct` is created by the [`iter`] method on [`HashMap`]. See its

src/set.rs

@@ -1160,7 +1160,6 @@ where
 }
 
 // The default hasher is used to match the std implementation signature
-// see https://doc.rust-lang.org/src/std/collections/hash/set.rs.html#1010-1026
 impl<T, A, const N: usize> From<[T; N]> for HashSet<T, DefaultHashBuilder, A>
 where
     T: Eq + Hash,