Revised patch attached.

On Fri, Nov 5, 2021 at 4:46 PM Jonathan Wakely <jwakely.gcc@gmail.com>
wrote:

> On Fri, 5 Nov 2021 at 21:51, Jonathan Wakely via Libstdc++
> <libstdc++@gcc.gnu.org> wrote:
> >
> > OK, thanks.
>
> Actually, we should really have a test to verify it can be called on a
> const object. Please add something when you commit, it can be dumb and
> simple, it just needs to verify that it can be called.
>
>
> >
> >
> > On Fri, 5 Nov 2021 at 21:46, Thomas Rodgers via Libstdc++ <
> > libstdc++@gcc.gnu.org> wrote:
> >
> > >
> > >
>
>