Make BTreeMap::new_in const

Closes rust-lang/wg-allocators#118
2023-10-09 11:08:48 +02:00 · 2023-10-09 11:08:48 +02:00 · bbc230478c
commit bbc230478c
parent 093b9d5b29
1 changed files with 1 additions and 1 deletions
--- a/library/alloc/src/collections/btree/map.rs
+++ b/library/alloc/src/collections/btree/map.rs
@ -669,7 +669,7 @@ pub fn clear(&mut self) {
    /// map.insert(1, "a");
    /// ```
    #[unstable(feature = "btreemap_alloc", issue = "32838")]
-    pub fn new_in(alloc: A) -> BTreeMap<K, V, A> {
+    pub const fn new_in(alloc: A) -> BTreeMap<K, V, A> {
        BTreeMap { root: None, length: 0, alloc: ManuallyDrop::new(alloc), _marker: PhantomData }
    }
 }