[PATCH] libstdc++: Implement final wording of C++26 P3778R0 - type_order

[Jonathan Wakely]

On Mon, 10 Nov 2025, 06:26 Jakub Jelinek, <jakub@redhat.com> wrote:

> Hi!
>
> The approved P3778R0 wording doesn't have type_order<_Tp, _Up>::type, so
> this patch removes it.
>
> Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
>

OK, thanks



> 2025-11-10  Jakub Jelinek  <jakub@redhat.com>
>
>         * libsupc++/compare: Implement final wording of C++26 P3778R0 - Fix
>         for type_order template definition.
>         (std::type_order): Remove type member.
>
> --- libstdc++-v3/libsupc++/compare.jj   2025-09-02 16:52:09.435337136 +0200
> +++ libstdc++-v3/libsupc++/compare      2025-11-08 08:31:23.827194690 +0100
> @@ -1272,7 +1272,6 @@ namespace std _GLIBCXX_VISIBILITY(defaul
>      {
>        static constexpr strong_ordering value = __builtin_type_order(_Tp,
> _Up);
>        using value_type = strong_ordering;
> -      using type = type_order<_Tp, _Up>;
>        constexpr operator value_type() const noexcept { return value; }
>        constexpr value_type operator()() const noexcept { return value; }
>      };
>
>         Jakub
>
>
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