And assignment operators. I don't know why you excluded them.

On Friday, October 7, 2022, Arthur O'Dwyer <arthur.j.odwyer@gmail.com> wrote:
> On Fri, Oct 7, 2022 at 7:42 AM blacktea hamburger via Std-Proposals <std-proposals@lists.isocpp.org> wrote:
>>
>> std::vector<bool>::reference and std::bitset::reference are both proxies, so even if they themselves are const, they can still be used to change the bit they reference.
>> Are there any issues?
>
> IIUC, you're talking about Jonathan Wakely's P/R of LWG 3638, and proposing that it should be amended to say
>     constexpr void flip() const noexcept;
> I would tend to agree with this suggestion (although `flip()` is a dumb member function to have, in general).
> And then bitset::reference [template.bitset.general] should be updated in the same way:
>     constexpr reference& flip() noexcept;
>     constexpr const reference& flip() const noexcept;
> If you're proposing anything else in addition to those two changes to `flip()`, it's not obvious to me from what you said.
> –Arthur