Tracking issue for std::ptr::hash

[dwijnand]

Implemented in #56250 as #[unstable(feature = "ptr_hash")].

[dtolnay]

Updated from:

fn hash<T, S: Hasher>(hashee: *const T, into: &mut S)

to:

fn hash<T: ?Sized, S: Hasher>(hashee: *const T, into: &mut S)
           ^^^^^^

in #56751. Thanks @mbrubeck.

[SimonSapin]

Seems straightforward enough to me.

@rfcbot fcp merge

[rfcbot]

Team member @SimonSapin has proposed to merge this. The next step is review by the rest of the tagged team members:

• @Kimundi
• @SimonSapin
• @alexcrichton
• @dtolnay
• @sfackler
• @withoutboats

No concerns currently listed.

Once a majority of reviewers approve (and none object), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

[rfcbot]

🔔 This is now entering its final comment period, as per the review above. 🔔

[rfcbot]

The final comment period, with a disposition to merge, as per the review above, is now complete.

[matklad]

Question:

We have Arc::ptr_eq, should we have Arc::ptr_hash as well?

[SimonSapin]

We could, but that’s going quickly into diminishing returns IMO. You can always use something like std::ptr::hash::<T, _>(&*arc, s)