On Wed, 20 Oct 2021 at 06:48, Tim Song wrote:
>
> On Tue, Oct 19, 2021 at 9:05 AM Jonathan Wakely via Gcc-patches
> <gcc-patches@gcc.gnu.org> wrote:
> >
> > +constexpr bool
> > +test_copy_elision()
> > +{
> > + return true;
> > +}
> > +
> > +static_assert( test_copy_elision() );
> > +
>
> This isn't much of a test :)
The ultimate copy elision. The copies even get removed from the source code.
Thanks for spotting it. I meant to check we're constructing directly
into the union member without materializing the temporary early. I'll
add that today.
