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Add note to use nightly when using expr in const generics #79374

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Merged
merged 3 commits into from
Nov 24, 2020
Merged

Add note to use nightly when using expr in const generics #79374

merged 3 commits into from
Nov 24, 2020

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mendess
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@mendess mendess commented Nov 24, 2020

As recommended by @icnr in #73899 and in zulip, I've added a note saying that const expressions can be used in nightly.

error: generic parameters may not be used in const operations
  --> $DIR/issue-61935.rs:10:23
   |
 6 |         Self:FooImpl<{N==0}>
   |                       ^ cannot perform const operation using `N`
   |
   = help: const parameters may only be used as standalone arguments, i.e. `N`
   = note: use feature(const_generics) and feature(const_evaluatable_checked) to enable this

error: aborting due to previous error

I hope the note is well written 😅

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r? @petrochenkov

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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 Nov 24, 2020
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lcnr commented Nov 24, 2020

r? @lcnr

@rust-highfive rust-highfive assigned lcnr and unassigned petrochenkov Nov 24, 2020
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mendess commented Nov 24, 2020 •
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r? @lcnr

After this r=me 😅

is this what r=me means? I'm new to this 😅

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lcnr commented Nov 24, 2020

r=me is used to signal that I will approve this PR using bors.

thanks 👍

@bors r+ rollup

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bors commented Nov 24, 2020

📌 Commit 888055e has been approved by lcnr

@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 Nov 24, 2020
@jonas-schievink jonas-schievink mentioned this pull request Nov 24, 2020
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bors added a commit to rust-lang-ci/rust that referenced this pull request Nov 24, 2020
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Auto merge of rust-lang#79377 - jonas-schievink:rollup-ye81i66, r=jon…
53d19b3 
…as-schievink

Rollup of 10 pull requests

Successful merges:

 - rust-lang#76858 (Add exploit mitigations chapter to the rustc book)
 - rust-lang#79310 (Make `fold_item_recur` non-nullable)
 - rust-lang#79312 (Get rid of `doctree::Impl`)
 - rust-lang#79321 (Accept '!' in intra-doc links)
 - rust-lang#79346 (Allow using `-Z fewer-names=no` to retain value names)
 - rust-lang#79351 (Fix typo in `keyword` docs for traits)
 - rust-lang#79354 (BTreeMap: cut out the ceremony around BoxedNode)
 - rust-lang#79358 (BTreeMap/BTreeSet: make public doc more consistent)
 - rust-lang#79367 (Allow disabling TrapUnreachable via -Ztrap-unreachable=no)
 - rust-lang#79374 (Add note to use nightly when using expr in const generics)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit f049b0b into rust-lang:master Nov 24, 2020
@rustbot rustbot added this to the 1.50.0 milestone Nov 24, 2020
@lcnr lcnr added the A-const-generics Area: const generics (parameters and arguments) label Aug 26, 2021
@lcnr lcnr mentioned this pull request Dec 11, 2021
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