[libcxx-commits] [libcxx] [libc++][chrono] P2592R3: Hashing for chrono (PR #165132)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

Looks like we need to add

```C++
#if _LIBCPP_STD_VER >= 26
  using std::hash;
#endif
```

here:

https://github.com/llvm/llvm-project/blob/7de1a17cc64bfcd1f0de055682d562dfb6476fb2/libcxx/modules/std/chrono.inc#L286-L287

https://github.com/llvm/llvm-project/pull/165132