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path: root/library/alloc/src/vec/mod.rs
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2025-07-30Implement push_mutBalt-14/+108
2025-07-15Auto merge of #143877 - xizheyin:143813, r=scottmcm,saethlinbors-3/+17
`std::vec`: Add UB check for `set_len`, `from_raw_parts_in`, and etc. Closes rust-lang/rust#143813 I noticed that `from_parts_in` do the similar things like `from_raw_parts_in`, so I add the UB check in the last commit. If it is not appropriate, I will remove it. And I fix a typo in the first commit. r? `@scottmcm`
2025-07-13update issue number for `const_trait_impl`Deadbeef-1/+1
2025-07-13std::vec: Add UB check in `from_parts_in`xizheyin-0/+5
Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
2025-07-13std::vec: Add UB check in `from_raw_parts_in`xizheyin-0/+5
Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
2025-07-13`std::vec`: Upgrade `debug_assert` to UB check in `set_len`xizheyin-2/+6
Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
2025-07-13Fix typo in `std::vec`xizheyin-1/+1
Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
2025-07-07Make `Default` const and add some `const Default` implsEsteban Küber-1/+2
Full list of `impl const Default` types: - () - bool - char - Cell - std::ascii::Char - usize - u8 - u16 - u32 - u64 - u128 - i8 - i16 - i32 - i64 - i128 - f16 - f32 - f64 - f128 - std::marker::PhantomData<T> - Option<T> - std::iter::Empty<T> - std::ptr::Alignment - &[T] - &mut [T] - &str - &mut str - String - Vec<T>
2025-07-02Auto merge of #143338 - matthiaskrgr:rollup-ykaxh04, r=matthiaskrgrbors-82/+82
Rollup of 11 pull requests Successful merges: - rust-lang/rust#131923 (Derive `Copy` and `Hash` for `IntErrorKind`) - rust-lang/rust#138340 (Remove some unsized tuple impls now that we don't support unsizing tuples anymore) - rust-lang/rust#141219 (Change `{Box,Arc,Rc,Weak}::into_raw` to only work with `A = Global`) - rust-lang/rust#142212 (bootstrap: validate `rust.codegen-backends` & `target.<triple>.codegen-backends`) - rust-lang/rust#142237 (Detect more cases of unused_parens around types) - rust-lang/rust#142964 (Attribute rework: a parser for single attributes without arguments) - rust-lang/rust#143070 (Rewrite `macro_rules!` parser to not use the MBE engine itself) - rust-lang/rust#143235 (Assemble const bounds via normal item bounds in old solver too) - rust-lang/rust#143261 (Feed `explicit_predicates_of` instead of `predicates_of`) - rust-lang/rust#143276 (loop match: handle opaque patterns) - rust-lang/rust#143306 (Add `track_caller` attributes to trace origin of Clippy lints) r? `@ghost` `@rustbot` modify labels: rollup try-job: aarch64-apple try-job: x86_64-msvc-1 try-job: x86_64-gnu try-job: dist-i586-gnu-i586-i686-musl try-job: test-various
2025-07-02Rollup merge of #142138 - ashivaram23:vec_into_chunks, r=scottmcmMatthias Krüger-0/+55
Add `Vec::into_chunks` Tracking issue rust-lang/rust#142137
2025-07-01Change `{Box,Arc,Rc,Weak}::into_raw` to only work with `A = Global`Amanieu d'Antras-82/+82
Also applies to `Vec::into_raw_parts`. The expectation is that you can round-trip these methods with `from_raw`, but this is only true when using the global allocator. With custom allocators you should instead be using `into_raw_with_allocator` and `from_raw_in`. The implementation of `Box::leak` is changed to use `Box::into_raw_with_allocator` and explicitly leak the allocator (which was already the existing behavior). This is because, for `leak` to be safe, the allocator must not free its underlying backing store. The `Allocator` trait only guarantees that allocated memory remains valid until the allocator is dropped.
2025-06-11update docs, testJeremy Smart-5/+1
2025-06-07fix wording in assertAmogh Shivaram-1/+1
2025-06-07cfg for no no_global_oom_handlingAmogh Shivaram-0/+1
2025-06-06put feature attribute in exampleAmogh Shivaram-0/+2
2025-06-06Add `into_chunks`Amogh Shivaram-0/+52
2025-06-06fix testsJeremy Smart-0/+1
2025-06-04add Vec::peek_mutJeremy Smart-0/+35
2025-05-17Docs(lib/extract_if): Unify example descriptionPaul Mabileau-1/+1
Signed-off-by: Paul Mabileau <paul.mabileau@harfanglab.fr>
2025-05-17Docs(lib/extract_if): Unify paragraph about elements mutationPaul Mabileau-2/+2
Take the one from `BTreeMap` that seems the best-worded and most precise among the available variations. Signed-off-by: Paul Mabileau <paul.mabileau@harfanglab.fr>
2025-05-17Docs(lib/extract_if): Unify paragraph about closure actionsPaul Mabileau-3/+3
Also fixes `HashSet`'s that incorrectly designated itself as a `list`. Signed-off-by: Paul Mabileau <paul.mabileau@harfanglab.fr>
2025-05-17Docs(lib/alloc/vec): Add the missing `an` to `extract_if`'s first sentencePaul Mabileau-1/+1
As inspired by the equivalent methods from other collection types. Signed-off-by: Paul Mabileau <paul.mabileau@harfanglab.fr>
2025-05-05Simplify `Vec::as_non_null` implementation and make it `const`Vilim Lendvaj-3/+3
2025-05-05Rollup merge of #135734 - nk9:extract_if-doc-equivalent, r=tgross35Trevor Gross-6/+12
Correct `extract_if` sample equivalent. Tracking issue: https://github.com/rust-lang/rust/issues/43244 Original PR: #133265 The sample code marked as equivalent in the doc comment isn't currently equivalent. Given the same predicate and range, if your vector were `[1, 2, 3, 3, 3, 3, 3, 3, 4, 5, 6]`, then all of the 3s would be removed. `i` is only incremented when an element is dropped, but `range.end` is unchanged, so the items shift down. I got very confused when reading the docs and trying to square this sample code with the explanation of how the function works. Fortunately, the real `extract_if()` does not have this problem. I've added an `end` variable to align the behavior. I've also taken the opportunity to simplify the predicate, which now just matches odd numbers, and to pad out the vec of numbers to line up the zero-indexed range with the integers in the vec. r? the8472
2025-05-04extract_if's sample equivalent now really equivalent.Nick Kocharhook-6/+12
Simpler predicate. Compare sample code output to that of the library function.
2025-05-03Suggest `retain_mut` over `retain` as `Vec::extract_if` alternativePaolo Barbolini-2/+2
2025-04-20Implement lint against dangerous implicit autorefsUrgau-1/+1
2025-04-09replace version placeholderBoxy-9/+9
2025-04-08document panic behavior of Vec::resize and Vec::resize_withJonathan Gruner-0/+8
2025-03-30Delete unreacheable `#[rustc_on_unimplemented]`mejrs-8/+0
2025-03-16Rollup merge of #136293 - hkBst:patch-32, r=AmanieuJacob Pratt-0/+13
document capacity for ZST as example The main text already covers this, although it provides weaker guarantees, but I think an example in the right spot does not hurt. Fixes #80747
2025-03-09document capacity for ZST as example and proseMarijn Schouten-0/+13
2025-03-08Stabilize `const_vec_string_slice`Martin Habovstiak-7/+7
This feature was approved for stabilization in https://github.com/rust-lang/rust/issues/129041#issuecomment-2508940661 so this change stabilizes it.
2025-03-07Fully test the alloc crate through alloctestsbjorn3-38/+9
For the tests that make use of internal implementation details, we include the module to test using #[path] in alloctests now.
2025-03-06library: Use size_of from the prelude instead of importedThalia Archibald-5/+5
Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the prelude instead of importing or qualifying them. These functions were added to all preludes in Rust 1.80.
2025-02-24Rollup merge of #137109 - bend-n:knife, r=oli-obkTrevor Gross-4/+2
stabilize extract_if Tracking issue: #43244 Closes: #43244 FCP completed: https://github.com/rust-lang/rust/issues/43244#issuecomment-2523595704
2025-02-24Rollup merge of #135933 - hkBst:patch-19, r=workingjubileeTrevor Gross-5/+17
Explain how Vec::with_capacity is faithful This is a revival of https://github.com/rust-lang/rust/pull/99790 building on the prose of `@workingjubilee` and edits of `@jmaargh.` Closes https://github.com/rust-lang/rust/issues/99385.
2025-02-23stabilize extract_ifbendn-4/+2
2025-02-21Explain how Vec::with_capacity is faithfulMarijn Schouten-5/+17
Co-authored-by: Jubilee <workingjubilee@gmail.com> and jmaargh
2025-02-18update version placeholdersJosh Stone-1/+1
(cherry picked from commit e4840ce59bdddb19394df008c5c26d9c493725f8)
2025-02-13alloc: Apply missing_unsafe_on_externEric Huss-1/+1
2025-02-09Rollup merge of #135488 - GrigorenkoPV:vec_pop_if, r=jhprattMatthias Krüger-3/+1
Stabilize `vec_pop_if` Tracking issue: #122741 FCP completed in https://github.com/rust-lang/rust/issues/122741#issuecomment-2605116387
2025-01-25[Clippy] Add vec_reserve & vecdeque_reserve diagnostic itemswowinter13-0/+1
2025-01-24Rollup merge of #135728 - hkBst:patch-8, r=joboetMatthias Krüger-3/+5
document order of items in iterator from drain fixes #135710
2025-01-25Stabilize `vec_pop_if`Pavel Grigorenko-3/+1
2025-01-24Rollup merge of #135983 - hkBst:patch-13, r=jhprattMatthias Krüger-4/+3
Doc difference between extend and extend_from_slice fixes #97119
2025-01-24Doc difference between extend and extend_from_sliceMarijn Schouten-4/+3
fixes #97119
2025-01-24Make `Vec::pop_if` a bit more presentablePavel Grigorenko-7/+4
2025-01-19Fix whitespaceMarijn Schouten-1/+1
2025-01-19document order of items in iterator from drainMarijn Schouten-3/+5
fixes 135710
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