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clarify that unchecked indexing is UB even if the reference is never used #63233

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Merged
bors merged 3 commits into from
Aug 4, 2019
Merged

clarify that unchecked indexing is UB even if the reference is never used #63233

bors merged 3 commits into from
Aug 4, 2019

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@RalfJung RalfJung commented Aug 3, 2019

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rust-highfive commented Aug 3, 2019

r? @dtolnay

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 3, 2019
Centril
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Thanks! r=me rollup with suggestions applied.

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Centril commented Aug 3, 2019

r? @Centril

@rust-highfive rust-highfive assigned Centril and unassigned dtolnay Aug 3, 2019
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Apply suggestions from code review
3b9cda4 
Co-Authored-By: Mazdak Farrokhzad <[email protected]>
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RalfJung commented Aug 3, 2019

@bors r=Centril rollup

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bors commented Aug 3, 2019

📌 Commit 3b9cda4 has been approved by Centril

@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 Aug 3, 2019
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RalfJung commented Aug 3, 2019 •
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@bors r-

investigating

EDIT: fixed links, waiting for PR CI

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Aug 3, 2019
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RalfJung commented Aug 4, 2019

Okay I give up, we do indeed have to use an absolute link.

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fix links
9b5623f 
relative links do not work because this is included in several places
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RalfJung commented Aug 4, 2019

@bors r=Centril

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bors commented Aug 4, 2019

📌 Commit 9b5623f has been approved by Centril

@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-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Aug 4, 2019
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bors commented Aug 4, 2019

⌛ Testing commit 9b5623f with merge 5170a3f...

bors added a commit that referenced this pull request Aug 4, 2019
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Auto merge of #63233 - RalfJung:get_unchecked, r=Centril
5170a3f 
clarify that unchecked indexing is UB even if the reference is never used
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bors commented Aug 4, 2019

☀️ Test successful - checks-azure
Approved by: Centril
Pushing 5170a3f to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Aug 4, 2019
@bors bors merged commit 9b5623f into rust-lang:master Aug 4, 2019
@RalfJung RalfJung deleted the get_unchecked branch August 5, 2019 16:26
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