[libcxx-commits] [libcxx] [libcxx] replaces SFINAE with requires-expressions in `bind_front` and `bind_back` (PR #68249)

[Christopher Di Bella via libcxx-commits]

cjdb wrote:

GitHub doesn't have a way to cc folks, so I've added @lnihlen as a reviewer (lemme know if there's a better way to do this).

https://github.com/llvm/llvm-project/pull/68249