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Recommend swap_remove in Vec::remove docs #87644

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merged 1 commit into from
Aug 2, 2021

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Flying-Toast
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@Flying-Toast Flying-Toast commented Jul 30, 2021

I was able to increase the performance (by 20%!) of my project by changing a Vec::remove call to Vec::swap_remove in a hot function. I think we should explicitly put a note in the Vec::remove docs to guide people in the right direction so they don't make a similar oversight.

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r? @joshtriplett

(rust-highfive has picked a reviewer for you, use r? to override)

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 30, 2021
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the8472 commented Jul 31, 2021

LGTM

@bors r+ rollup

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bors commented Jul 31, 2021

📌 Commit 9a2e3f3 has been approved by the8472

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 31, 2021
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 2, 2021
Rollup of 13 pull requests

Successful merges:

 - rust-lang#86183 (Change environment variable getters to error recoverably)
 - rust-lang#86439 (Remove `Ipv4Addr::is_ietf_protocol_assignment`)
 - rust-lang#86509 (Move `os_str_bytes` to `sys::unix`)
 - rust-lang#86593 (Partially stabilize `const_slice_first_last`)
 - rust-lang#86936 (Add documentation for `Ipv6MulticastScope`)
 - rust-lang#87282 (Ensure `./x.py dist` adheres to `build.tools`)
 - rust-lang#87468 (Update rustfmt)
 - rust-lang#87504 (Update mdbook.)
 - rust-lang#87608 (Remove unused field `Session.system_library_path`)
 - rust-lang#87629 (Consistent spelling of "adapter" in the standard library)
 - rust-lang#87633 (Update compiler_builtins to fix i128 shift/mul on thumbv6m)
 - rust-lang#87644 (Recommend `swap_remove` in `Vec::remove` docs)
 - rust-lang#87653 (mark a UB doctest as no_run)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 0c9b35b into rust-lang:master Aug 2, 2021
@rustbot rustbot added this to the 1.56.0 milestone Aug 2, 2021
@wcampbell0x2a
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Could this be a good clippy lint?

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7 participants