Re: [PATCH 1/3] libstdc++: Fix elements_view::operator* and operator[] [LWG 3502]

[Jonathan Wakely via Gcc-patches]

On 29/03/21 14:49 -0400, Patrick Palka via Libstdc++ wrote:

While we're modifying elements_view, this also implements the one-line
resolution of LWG 3492.

libstdc++-v3/ChangeLog:

        * include/std/ranges (__detail::__returnable_element): New
        concept.
        (elements_view): Use this concept in its constraints.  Add
        missing private access specifier.
        (elements_view::_S_get_element): Define as per LWG 3502.
        (elements_view::operator*, elements_view::operator[]): Use
        _S_get_element.
        (elements_view::operator++): Remove unnecessary constraint
        as per LWG 3492.
        * testsuite/std/ranges/adaptors/elements.cc (test05): New test.

OK, thanks.