On Sat, 8 Jul 2023 at 06:31, Ken Matsui via Libstdc++
<[email protected]> wrote:
>
> This patch lets libstdc++ use new built-in trait __remove_pointer.
>
> libstdc++-v3/ChangeLog:
>
> * include/std/type_traits (remove_pointer): Use __remove_pointer
> built-in trait.
>
> Signed-off-by: Ken Matsui <[email protected]>
OK for trunk after the front-end __remove_pointer is committed.
> ---
> libstdc++-v3/include/std/type_traits | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/libstdc++-v3/include/std/type_traits
> b/libstdc++-v3/include/std/type_traits
> index 0e7a9c9c7f3..81497e2f3e1 100644
> --- a/libstdc++-v3/include/std/type_traits
> +++ b/libstdc++-v3/include/std/type_traits
> @@ -2023,6 +2023,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
>
> // Pointer modifications.
>
> + /// remove_pointer
> +#if __has_builtin(__remove_pointer)
> + template<typename _Tp>
> + struct remove_pointer
> + { using type = __remove_pointer(_Tp); };
> +#else
> template<typename _Tp, typename>
> struct __remove_pointer_helper
> { using type = _Tp; };
> @@ -2031,11 +2037,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
> struct __remove_pointer_helper<_Tp, _Up*>
> { using type = _Up; };
>
> - /// remove_pointer
> template<typename _Tp>
> struct remove_pointer
> : public __remove_pointer_helper<_Tp, __remove_cv_t<_Tp>>
> { };
> +#endif
>
> template<typename _Tp, typename = void>
> struct __add_pointer_helper
> --
> 2.41.0
>
