[libcxx-commits] [libcxx] [libcxx] P2278R4: implement `{basic_, }const_iterator`, and have `cbegin` et. al. return it (PR #99915)

[nicole mazzuca via libcxx-commits]

strega-nil wrote:

@mordante can do! I hope to write tests on Monday so I actually get this going again haha

https://github.com/llvm/llvm-project/pull/99915