[PATCH] libstdc++: Implement LWG 3553 change to split_view

[Jonathan Wakely]

On Fri, 18 Jun 2021 at 05:01, Patrick Palka via Libstdc++
<libstdc++@gcc.gnu.org> wrote:
>
> libstdc++-v3/ChangeLog:
>
>         * include/std/ranges (split_view::_OuterIter::value_type::begin):
>         Remove the non-const overload, and remove the copyable constraint
>         on the const overload as per LWG 3553.


OK


> ---
>  libstdc++-v3/include/std/ranges | 6 ------
>  1 file changed, 6 deletions(-)
>
> diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
> index bf85b1629f0..49babe81437 100644
> --- a/libstdc++-v3/include/std/ranges
> +++ b/libstdc++-v3/include/std/ranges
> @@ -2932,14 +2932,8 @@ namespace views::__adaptor
>
>             constexpr _InnerIter<_Const>
>             begin() const
> -             requires copyable<_OuterIter>
>             { return _InnerIter<_Const>{_M_i}; }
>
> -           constexpr _InnerIter<_Const>
> -           begin()
> -             requires (!copyable<_OuterIter>)
> -           { return _InnerIter<_Const>{std::move(_M_i)}; }
> -
>             constexpr default_sentinel_t
>             end() const
>             { return default_sentinel; }
> --
> 2.32.0.93.g670b81a890
>