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Move safe computation out of unsafe block #149194

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Move safe computation out of unsafe block #149194

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8 changes: 4 additions & 4 deletions library/alloc/src/collections/vec_deque/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2479,11 +2479,11 @@ impl<T, A: Allocator> VecDeque<T, A> {
let other_len = len - at;
let mut other = VecDeque::with_capacity_in(other_len, self.allocator().clone());

unsafe {
let (first_half, second_half) = self.as_slices();
let (first_half, second_half) = self.as_slices();
let first_len = first_half.len();
let second_len = second_half.len();

let first_len = first_half.len();
let second_len = second_half.len();
unsafe {
if at < first_len {
// `at` lies in the first half.
let amount_in_first = first_len - at;
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