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

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> This one definitely looks like a feature to me, do you have additional context on why the other implementations did this as a DR?

[N4970](https://wg21.link/n4970) said that [P2836R1](https://wg21.link/p2836r1) was accepted as a DR. Not sure whether we need to add a note for this.

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