diff options
Diffstat (limited to 'libcxx/include/__ranges/enable_view.h')
| -rw-r--r-- | libcxx/include/__ranges/enable_view.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/libcxx/include/__ranges/enable_view.h b/libcxx/include/__ranges/enable_view.h index 0c1dff3..f570926 100644 --- a/libcxx/include/__ranges/enable_view.h +++ b/libcxx/include/__ranges/enable_view.h @@ -27,19 +27,20 @@ _LIBCPP_BEGIN_NAMESPACE_STD namespace ranges { -struct view_base { }; +struct view_base {}; -template<class _Derived> +template <class _Derived> requires is_class_v<_Derived> && same_as<_Derived, remove_cv_t<_Derived>> class view_interface; -template<class _Op, class _Yp> +template <class _Op, class _Yp> requires is_convertible_v<_Op*, view_interface<_Yp>*> void __is_derived_from_view_interface(const _Op*, const view_interface<_Yp>*); template <class _Tp> -inline constexpr bool enable_view = derived_from<_Tp, view_base> || - requires { ranges::__is_derived_from_view_interface((_Tp*)nullptr, (_Tp*)nullptr); }; +inline constexpr bool enable_view = derived_from<_Tp, view_base> || requires { + ranges::__is_derived_from_view_interface((_Tp*)nullptr, (_Tp*)nullptr); +}; } // namespace ranges |