diff options
| -rw-r--r-- | library/alloc/src/collections/vec_deque/mod.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs index c890ff4ac5e..de607c8fdab 100644 --- a/library/alloc/src/collections/vec_deque/mod.rs +++ b/library/alloc/src/collections/vec_deque/mod.rs @@ -543,9 +543,9 @@ impl<T, A: Allocator> VecDeque<T, A> { /// ``` #[unstable(feature = "allocator_api", issue = "32838")] pub fn with_capacity_in(capacity: usize, alloc: A) -> VecDeque<T, A> { + assert!(capacity < 1_usize << usize::BITS - 1, "capacity overflow"); // +1 since the ringbuffer always leaves one space empty let cap = cmp::max(capacity + 1, MINIMUM_CAPACITY + 1).next_power_of_two(); - assert!(cap > capacity, "capacity overflow"); VecDeque { tail: 0, head: 0, buf: RawVec::with_capacity_in(cap, alloc) } } |