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2021-10-01Clarify a sentence in the documentation of Vec (#84488)chrismit3s-1/+1
2021-09-30Fix standard library for min_specialization changesMatthew Jasper-16/+13
2021-09-30fix issues pointed out in reviewThe8472-10/+11
2021-09-30implement advance_(back_)_by on more iteratorsThe8472-0/+65
2021-09-30Add truncate note to Vec::resizeOwen Gage-0/+1
2021-09-28Additional docs about Vec::leak behaviorMatt Brubeck-2/+5
2021-09-28Avoid allocations and copying in Vec::leakMatt Brubeck-1/+2
Don't shrink the Vec (by calling into_boxed_slice) before leaking it.
2021-09-26Auto merge of #89144 - sexxi-goose:insig_stdlib, r=nikomatsakisbors-0/+7
2229: Mark insignificant dtor in stdlib I looked at all public [stdlib Drop implementations](https://doc.rust-lang.org/stable/std/ops/trait.Drop.html#implementors) and categorized them into Insigificant/Maybe/Significant Drop. Reasons are noted here: https://docs.google.com/spreadsheets/d/19edb9r5lo2UqMrCOVjV0fwcSdS-R7qvKNL76q7tO8VA/edit#gid=1838773501 One thing missing from this PR is tagging HashMap as insigificant destructor as that needs some discussion. r? `@Mark-Simulacrum` cc `@nikomatsakis`
2021-09-25Rollup merge of #89216 - r00ster91:bigo, r=dtolnayManish Goregaokar-7/+7
Consistent big O notation This makes the big O time complexity notation in places with markdown support more consistent. Inspired by #89210
2021-09-25Rollup merge of #89010 - est31:intra_doc_links, r=m-ou-seManish Goregaokar-9/+21
Add some intra doc links
2021-09-25Auto merge of #88343 - steffahn:fix_code_spacing, r=jyn514bors-70/+62
Fix spacing of links in inline code. Similar to #80733, but the focus is different. This PR eliminates all occurrences of pieced-together inline code blocks like [`Box`]`<`[`Option`]`<T>>` and replaces them with good-looking ones (using HTML-syntax), like <code>[Box]<[Option]\<T>></code>. As far as I can tell, I should’ve found all of these in the standard library (regex search with `` r"`\]`|`\[`" ``) \[except for in `core::convert` where I’ve noticed other things in the docs that I want to fix in a separate PR]. In particular, unlike #80733, I’ve added almost no new instance of inline code that’s broken up into multiple links (or some link and some link-free part). I also added tooltips (the stuff in quotes for the markdown link listings) in places that caught my eye, but that’s by no means systematic, just opportunistic. [Box]: https://doc.rust-lang.org/std/boxed/struct.Box.html "Box" [`Box`]: https://doc.rust-lang.org/std/boxed/struct.Box.html "Box" [Option]: https://doc.rust-lang.org/std/option/enum.Option.html "Option" [`Option`]: https://doc.rust-lang.org/std/option/enum.Option.html "Option" Context: I got annoyed by repeatedly running into new misformatted inline code while reading the standard library docs. I know that once issue #83997 (and/or related ones) are resolved, these changes become somewhat obsolete, but I fail to notice much progress on that end right now. r? `@jyn514`
2021-09-25Apply 16 commits (squashed)Frank Steffahn-70/+62
---------- Fix spacing for links inside code blocks, and improve link tooltips in alloc::fmt ---------- Fix spacing for links inside code blocks, and improve link tooltips in alloc::{rc, sync} ---------- Fix spacing for links inside code blocks, and improve link tooltips in alloc::string ---------- Fix spacing for links inside code blocks in alloc::vec ---------- Fix spacing for links inside code blocks in core::option ---------- Fix spacing for links inside code blocks, and improve a few link tooltips in core::result ---------- Fix spacing for links inside code blocks in core::{iter::{self, iterator}, stream::stream, poll} ---------- Fix spacing for links inside code blocks, and improve a few link tooltips in std::{fs, path} ---------- Fix spacing for links inside code blocks in std::{collections, time} ---------- Fix spacing for links inside code blocks in and make formatting of `&str`-like types consistent in std::ffi::{c_str, os_str} ---------- Fix spacing for links inside code blocks, and improve link tooltips in std::ffi ---------- Fix spacing for links inside code blocks, and improve a few link tooltips in std::{io::{self, buffered::{bufreader, bufwriter}, cursor, util}, net::{self, addr}} ---------- Fix typo in link to `into` for `OsString` docs ---------- Remove tooltips that will probably become redundant in the future ---------- Apply suggestions from code review Replacing `…std/primitive.reference.html` paths with just `reference` Co-authored-by: Joshua Nelson <github@jyn.dev> ---------- Also replace `…std/primitive.reference.html` paths with just `reference` in `core::pin`
2021-09-25refactor: VecDeques PairSlices fields to privateDeveloperC-4/+4
2021-09-25Auto merge of #89030 - nbdd0121:box2, r=jonas-schievinkbors-1/+0
Introduce `Rvalue::ShallowInitBox` Polished version of #88700. Implements MCP rust-lang/compiler-team#460, and should allow #43596 to go forward. In short, creating an empty box is split from a nullary-op `NullOp::Box` into two steps, first a call to `exchange_malloc`, then a `Rvalue::ShallowInitBox` which transmutes `*mut u8` to a shallow-initialized `Box<T>`. This allows the `exchange_malloc` call to unwind. Details can be found in the MCP. `NullOp::Box` is not yet removed, purely to make reverting easier in case anything goes wrong as the result of this PR. If revert is needed a reversion of "Use Rvalue::ShallowInitBox for box expression" commit followed by a test bless should be sufficient. Experiments in #88700 showed a very slight compile-time perf regression due to (supposedly) slightly more time spent in LLVM. We could omit unwind edge generation (in non-`oom=panic` case) in box expression MIR construction to restore perf; but I don't think it's necessary since runtime perf isn't affected and perf difference is rather small.
2021-09-25Use Rvalue::ShallowInitBox for box expressionGary Guo-1/+0
2021-09-24unitalicize O(1) complexitiesTakashi Idobe-4/+4
2021-09-24consistent big O notationr00ster91-7/+7
2021-09-23remove trailing whitespaceTakashi Idobe-4/+4
2021-09-23Add time complexities to linked_list.rsTakashi Idobe-0/+10
2021-09-22Rollup merge of #89036 - nbdd0121:alloc, r=yaahcthe8472-0/+3
Fix missing `no_global_oom_handling` cfg-gating Cfg-gate these trait impls that are neglected. These functions compile now because they use `box` syntax which depends on `exchange_malloc` during codegen only; as a result they compiles with cfg `no_global_oom_handling` but shouldn't. Discovered in #89030 because that PR makes `box` syntax depend on `exchange_malloc` lang item during MIR construction.
2021-09-22PR fixupAman Arora-7/+7
2021-09-21Rollup merge of #89086 - WaffleLapkin:stabilize_iter_map_while, r=kennytmthe8472-1/+0
Stabilize `Iterator::map_while` Per the FCP: https://github.com/rust-lang/rust/issues/68537#issuecomment-922385035 This PR stabilizes `Iterator::map_while` and `iter::MapWhile` in Rust 1.57.
2021-09-212229: Annotate stdlib with insignficant dtorsAman Arora-0/+7
2021-09-17refactor: VecDeques IntoIter fields to privateDeveloperC286-2/+8
2021-09-17Stabilize `Iterator::map_while`Maybe Waffle-1/+0
2021-09-17Fix missing `no_global_oom_handling` cfg-gatingGary Guo-0/+3
2021-09-17Optimize unnecessary check in Vec::retainTennyZhuang-3/+24
Co-authored-by: oxalica <oxalicc@pm.me>
2021-09-17Add benchmark for Vec::retainTennyZhuang-0/+15
2021-09-16Add IntoIterator intra doc link to various collectionsest31-5/+10
2021-09-16Add intra-doc-links to BinaryHeap rustdocest31-3/+7
2021-09-16Add intra-doc-links to LinkedList rustdocest31-1/+4
2021-09-15Const DerefDeadbeef-1/+5
2021-09-11Allow reverse iteration of lowercase'd/uppercase'd charsMichael Spector-0/+31
2021-09-08Bump stage0 compiler to 1.56Mark Rousskov-3/+0
2021-09-08rearrange to be panic safetabokie-10/+12
Signed-off-by: tabokie <xy.tao@outlook.com>
2021-09-07Optimize VecDeque::appendtabokie-2/+28
Signed-off-by: tabokie <xy.tao@outlook.com>
2021-09-07Auto merge of #88448 - xu-cheng:btree-blk-build, r=Mark-Simulacrumbors-10/+151
BTreeMap/BTreeSet::from_iter: use bulk building to improve the performance Bulk building is a common technique to increase the performance of building a fresh btree map. Instead of inserting items one-by-one, we sort all the items beforehand then create the BtreeMap in bulk. Benchmark ``` ./x.py bench library/alloc --test-args btree::map::from_iter ``` * Before ``` test btree::map::from_iter_rand_100 ... bench: 3,694 ns/iter (+/- 840) test btree::map::from_iter_rand_10_000 ... bench: 1,033,446 ns/iter (+/- 192,950) test btree::map::from_iter_seq_100 ... bench: 5,689 ns/iter (+/- 1,259) test btree::map::from_iter_seq_10_000 ... bench: 861,033 ns/iter (+/- 118,815) ``` * After ``` test btree::map::from_iter_rand_100 ... bench: 3,033 ns/iter (+/- 707) test btree::map::from_iter_rand_10_000 ... bench: 775,958 ns/iter (+/- 105,152) test btree::map::from_iter_seq_100 ... bench: 2,969 ns/iter (+/- 336) test btree::map::from_iter_seq_10_000 ... bench: 258,292 ns/iter (+/- 29,364) ```
2021-09-05Fix typo: needede -> neededYechan Bae-1/+1
2021-09-05Rollup merge of #88432 - terrarier2111:patch-1, r=joshtriplettMara Bos-1/+1
Fix a typo in raw_vec
2021-09-02Rollup merge of #88505 - ibraheemdev:use-unwrap-unchecked, r=kennytmMara Bos-1/+4
Use `unwrap_unchecked` where possible
2021-09-01Rollup merge of #88040 - nbdd0121:btreemap, r=m-ou-seMara Bos-44/+24
BTree: remove Ord bound from new `K: Ord` bound is unnecessary on `BTree{Map,Set}::new` and their `Default` impl. No elements exist so there are nothing to compare anyway, so I don't think "future proof" would be a blocker here. This is analogous to `HashMap::new` not having a `K: Eq + Hash` bound. #79245 originally does this and for some reason drops the change to `new` and `Default`. I can see why changes to other methods like `entry` or `symmetric_difference` need to be careful but I couldn't find out any reason not to do it on `new`. Removing the bound also makes the stabilisation of `const fn new` not depending on const trait bounds. cc `@steffahn` who suggests me to make this PR. r? `@dtolnay`
2021-08-31add safety annotation to `LinkedList::detach_all_nodes`Ibraheem Ahmed-0/+3
Co-authored-by: kennytm <kennytm@gmail.com>
2021-08-30use `unwrap_unchecked` where possibleibraheemdev-1/+1
2021-08-28VecDeque: improve performance for From<[T; N]>Cheng XU-1/+41
Create VecDeque directly from the array instead of inserting items one-by-one.
2021-08-28add benchmark for From<[T; N]> in VecDequeCheng XU-0/+15
2021-08-28BTreeSet::from_iter: use bulk building to improve the performanceCheng XU-5/+22
Apply the same optimization as BTreeMap::from_iter.
2021-08-28BTreeMap::from_iter: use bulk building to improve the performanceCheng XU-5/+79
Bulk building is a common technique to increase the performance of building a fresh btree map. Instead of inserting items one-by-one, we sort all the items beforehand then create the BtreeMap in bulk.
2021-08-28add benchmark for BTreeMap::from_iterCheng XU-0/+50
2021-08-28Fix a typo in raw_vecterrarier2111-1/+1
2021-08-26Add missing # Panics section to `Vec` methodSebastian Widua-1/+6
namely `Vec::extend_from_within`
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