Nico Weber 716ed5fccd
[libc++] Undeprecate shared_ptr atomic access APIs (#92920)
This patch reverts 9b832b72 (#87111):
- [libc++] Deprecated `shared_ptr` Atomic Access APIs as per P0718R2
- [libc++] Implemented P2869R3: Remove Deprecated `shared_ptr` Atomic Access APIs from C++26

As explained in [1], the suggested replacement in P2869R3 is `__cpp_lib_atomic_shared_ptr`,
which libc++ does not yet implement. Let's not deprecate the old way of doing things before
the new way of doing things exists.

[1]: https://github.com/llvm/llvm-project/pull/87111#issuecomment-2112740039
2024-06-07 11:31:17 -04:00
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