https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105241
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-04-12
Ever confirmed|0 |1
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Arthur O'Dwyer from comment #0)
> Swapping elements via the std::swap two-step works for `std::vector<bool>`;
Not according to the C++ standard it doesn't. That's https://wg21.link/lwg3638
> I see no reason it shouldn't also work for `std::bitset<N>`.
I see no requirement in the standard for it to work.
> libc++ and Microsoft STL both support `swap` on `bitset::reference` just
> fine.
That's a non-standard extension.
I think we could add it to libstdc++, but this seems like an LWG issue to me.
