Tracking Issue for `vec_deque_iter_as_slices`

Feature gate: #![feature(vec_deque_iter_as_slices)]

This is a tracking issue for:

• alloc::collections::vec_deque::Iter::as_slices
• alloc::collections::vec_deque::IterMut::into_slices
• alloc::collections::vec_deque::IterMut::as_slices
• alloc::collections::vec_deque::IterMut::as_mut_slices

Each of these functions obtains a pair of slices from a VecDeque iterator, similar to VecDeque::as_slices.

Public API

use std::collections::vec_deque::{Iter, IterMut};

impl<'a, T> Iter<'a, T> {
    pub fn as_slices(&self) -> (&'a [T], &'a [T]) { ... }
}

impl<'a, T> IterMut<'a, T> {
    pub fn into_slices(self) -> (&'a mut [T], &'a mut [T]) { ... }
    pub fn as_slices(&self) -> (&[T], &[T]) { ... }
    pub fn as_mut_slices(&mut self) -> (&mut [T], &mut [T]) { ... }
}

Steps / History

• Implementation: #123947
• Final comment period (FCP)^1
• Stabilization PR

Unresolved Questions

• None yet.

Review the public APIs listed under alloc::collections::vec_deque::Iter and IterMut, along with implementation PR #123947. Check the feature lifecycle and stabilization guidance before determining whether the final comment period and stabilization PR are ready; done means the required stabilization process has completed for all four methods.