[libcxx-commits] [libcxx] [libc++] Implement P1901R2: owner_hash and owner_equal for shared_ptr/weak_ptr (PR #210551)

[A. Jiang via libcxx-commits]

================
@@ -817,6 +823,31 @@ struct owner_less<void>
     typedef void is_transparent;
 };
 
+// class owner_hash:                                                          // C++26
+struct owner_hash {
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frederick-vs-ja wrote:

Nit: Indentation and banner from the standard wording.

It might be better to drop `// struct owner_hash` as it's not helpful.
```suggestion
// struct owner_hash
struct owner_hash {                                                            // C++26
```

https://github.com/llvm/llvm-project/pull/210551