[Bug libstdc++/112564] New: std::format(std::thread::id) is incorrectly left-aligned

[blubban at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112564

            Bug ID: 112564
           Summary: std::format(std::thread::id) is incorrectly
                    left-aligned
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: blubban at gmail dot com
  Target Milestone: ---

https://godbolt.org/z/zra9GddY3

N4964 [thread.thread.id]/12 "If the align option is omitted it defaults to >."
Both MSVC and libc++ right-align thread::id here as mandated by that paragraph,
but libstdc++ is left-aligning.

I am not sure how duration should be aligned by default but either libstdc++ or
libc++ are buggy here.


Found by https://github.com/StephanTLavavej