Re: [PATCH 1/3] libstdc++: Implement P1994R1 changes to ranges::elements_view

[Jonathan Wakely via Gcc-patches]

On 26/08/20 16:44 -0400, Patrick Palka via Libstdc++ wrote:

The example from the paper doesn't compile without the proposed
resolution for LWG 3406, so we'll add a testcase for this once the
proposed resolution is in.

libstdc++-v3/ChangeLog:

        P1994R1: elements_view needs its own sentinel.
        * include/std/ranges (elements_view::end): Replace these two
        overloads with four new overloads.
        (elements_view::_Iterator::operator==): Remove.
        (elements_view::_Iterator::operator-): Likewise.
        (elements_view::_Sentinel): Define.

OK, thanks.