[libcxx-commits] [libcxx] [libc++][NFC] Explicity use std::swap (PR #189112)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> We were getting errors saying calls with swap were ambiguous because our code defined another swap causing the ambiguity.

Could you post the example that caused the errors?

I believe the C++ standard expects swapping objects in the previously way. If your fancy pointer fails to be _Cpp17Swappable_, then either the fancy pointer type or your `swap` functions need to be fixed.

https://github.com/llvm/llvm-project/pull/189112