[libcxx-commits] [libcxx] [libc++][ranges] LWG4035: single_view should provide empty (PR #98371)

[Hristo Hristov via libcxx-commits]

H-G-Hristov wrote:

This recreates an earlier, unreviewed PR, which I destroyed disastrously while rebasing.

https://github.com/llvm/llvm-project/pull/98371