Make BTreeSet::new_in const

Sven Bartscher · Sven Bartscher · commit 349d5f522ce2 · 2023-10-09T11:17:56.000+02:00
diff --git a/alloc/src/collections/btree/set.rs b/alloc/src/collections/btree/set.rs
@@ -358,7 +358,7 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
     /// let mut set: BTreeSet<i32> = BTreeSet::new_in(Global);
     /// ```
     #[unstable(feature = "btreemap_alloc", issue = "32838")]
-    pub fn new_in(alloc: A) -> BTreeSet<T, A> {
+    pub const fn new_in(alloc: A) -> BTreeSet<T, A> {
         BTreeSet { map: BTreeMap::new_in(alloc) }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -358,7 +358,7 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {`
`358`	`358`	`/// let mut set: BTreeSet<i32> = BTreeSet::new_in(Global);`
`359`	`359`	/// ```
`360`	`360`	`#[unstable(feature = "btreemap_alloc", issue = "32838")]`
`361`		`- pub fn new_in(alloc: A) -> BTreeSet<T, A> {`
	`361`	`+ pub const fn new_in(alloc: A) -> BTreeSet<T, A> {`
`362`	`362`	`BTreeSet { map: BTreeMap::new_in(alloc) }`
`363`	`363`	`}`
`364`	`364`