Re: [committed 2/2] libstdc++: Implement constexpr std::bitset for C++23 (P2417R2)

[Jonathan Wakely via Gcc-patches]

On Thu, 22 Sept 2022 at 15:26, Jonathan Wakely via Libstdc++
<libstd...@gcc.gnu.org> wrote:
>
> Tested x86_64-linux. Pushed to trunk.
>
> -- >8 --
>
> Also add _GLIBCXX_HOSTED checks to simplify making <bitset>
> freestanding in the near future.
>
> libstdc++-v3/ChangeLog:
>
>         * include/std/bitset (bitset): Add constexpr for C++23. Guard
>         members using std::string with _GLIBCXX_HOSTED.
>         * include/std/version (__cpp_lib_constexpr_bitset): Define.
>         * testsuite/20_util/bitset/access/constexpr.cc: New test.
>         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: New test.
>         * testsuite/20_util/bitset/count/constexpr.cc: New test.
>         * testsuite/20_util/bitset/ext/constexpr.cc: New test.
>         * testsuite/20_util/bitset/operations/constexpr_c++23.cc: New test.
>         * testsuite/20_util/bitset/version.cc: New test.

The new tests fail with -D_GLIBCXX_DEBUG because I didn't update <debug/bitset>.

I'll do that tomorrow.