Add forgotten bounds check

balt-dev · balt-dev · commit fcfc17f59938 · 2025-06-17T13:04:54.000-05:00
diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs
@@ -2032,7 +2032,7 @@ impl<T, A: Allocator> Vec<T, A> {
     #[stable(feature = "rust1", since = "1.0.0")]
     #[track_caller]
     pub fn insert(&mut self, index: usize, element: T) {
-        let _ = self.insert_mut(index, element);
+        assert!(self.insert_mut(index, element).is_some(), "index out of bounds");
     }
 
     /// Inserts an element at position `index` within the vector, shifting all

Original file line number	Diff line number	Diff line change
`@@ -2032,7 +2032,7 @@ impl<T, A: Allocator> Vec<T, A> {`
`2032`	`2032`	`#[stable(feature = "rust1", since = "1.0.0")]`
`2033`	`2033`	`#[track_caller]`
`2034`	`2034`	`pub fn insert(&mut self, index: usize, element: T) {`
`2035`		`- let _ = self.insert_mut(index, element);`
	`2035`	`+ assert!(self.insert_mut(index, element).is_some(), "index out of bounds");`
`2036`	`2036`	`}`
`2037`	`2037`
`2038`	`2038`	/// Inserts an element at position `index` within the vector, shifting all