[Bug libstdc++/122946] New: [C++23] Implement P2404R3, Move-only types for equality_comparable_with, totally_ordered_with, and three_way_comparable_with

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122946

            Bug ID: 122946
           Summary: [C++23] Implement P2404R3, Move-only types for
                    equality_comparable_with, totally_ordered_with, and
                    three_way_comparable_with
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
            Blocks: 106749
  Target Milestone: ---

https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2404r3.pdf

Libc++ and MSVC want to treat this as a DR for C++20 which seems reasonable to
me.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106749
[Bug 106749] Implement C++23 library features