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Rollup merge of #105126 - Sp00ph:const_new_in, r=dtolnay

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Make `VecDeque::new_in` unstably const

(See #105072)
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Matthias Krüger 2022-12-02 08:28:09 +01:00 committed by GitHub
commit 4c4dec4408
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1 changed files with 2 additions and 3 deletions
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5
library/alloc/src/collections/vec_deque/mod.rs
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@ -566,10 +566,9 @@ impl<T, A: Allocator> VecDeque<T, A> {
///
/// let deque: VecDeque<u32> = VecDeque::new();
/// ```
// FIXME: This should probably be const
#[inline]
#[unstable(feature = "allocator_api", issue = "32838")]
pub fn new_in(alloc: A) -> VecDeque<T, A> {
pub const fn new_in(alloc: A) -> VecDeque<T, A> {
VecDeque { head: 0, len: 0, buf: RawVec::new_in(alloc) }
}
@ -2152,7 +2151,7 @@ impl<T, A: Allocator> VecDeque<T, A> {
self.head = tail;
} else {
// ´free` is smaller than both `head_len` and `tail_len`.
// `free` is smaller than both `head_len` and `tail_len`.
// the general algorithm for this first moves the slices
// right next to each other and then uses `slice::rotate`
// to rotate them into place: