Make VecDeque::from_iter O(1) from vec(_deque)::IntoIter#105453
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bors merged 2 commits intorust-lang:masterfrom Dec 10, 2022
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Make VecDeque::from_iter O(1) from vec(_deque)::IntoIter#105453bors merged 2 commits intorust-lang:masterfrom
VecDeque::from_iter O(1) from vec(_deque)::IntoIter#105453bors merged 2 commits intorust-lang:masterfrom
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…8472 Make `VecDeque::from_iter` O(1) from `vec(_deque)::IntoIter` As suggested in rust-lang#105046 (comment) by r? `@the8472` `Vec` & `VecDeque`'s `IntoIter`s own the allocations, and even if advanced can be turned into `VecDeque`s in O(1). This is just a specialization, not an API or doc commitment, so I don't think it needs an FCP.
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…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#102406 (Make `missing_copy_implementations` more cautious) - rust-lang#105265 (Add `rustc_on_unimplemented` to `Sum` and `Product` trait.) - rust-lang#105385 (Skip test on s390x as LLD does not support the platform) - rust-lang#105453 (Make `VecDeque::from_iter` O(1) from `vec(_deque)::IntoIter`) - rust-lang#105468 (Mangle "main" as "__main_void" on wasm32-wasi) - rust-lang#105480 (rustdoc: remove no-op mobile CSS `#sidebar-toggle { text-align }`) - rust-lang#105489 (Fix typo in apple_base.rs) - rust-lang#105504 (rustdoc: make stability badge CSS more consistent) - rust-lang#105506 (Tweak `rustc_must_implement_one_of` diagnostic output) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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As suggested in #105046 (comment) by
r? @the8472
Vec&VecDeque'sIntoIters own the allocations, and even if advanced can be turned intoVecDeques in O(1).This is just a specialization, not an API or doc commitment, so I don't think it needs an FCP.