diff options
Diffstat (limited to 'src/corelib/global/qtypeinfo.h')
| -rw-r--r-- | src/corelib/global/qtypeinfo.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/corelib/global/qtypeinfo.h b/src/corelib/global/qtypeinfo.h index 30db5c4487..c0617a41f2 100644 --- a/src/corelib/global/qtypeinfo.h +++ b/src/corelib/global/qtypeinfo.h @@ -324,6 +324,16 @@ struct expand_operator_less_than_tuple<std::variant<T...>> : expand_operator_les } +template<typename T, typename = void> +struct is_dereferenceable : std::false_type {}; + +template<typename T> +struct is_dereferenceable<T, std::void_t<decltype(std::declval<T>().operator->())> > + : std::true_type {}; + +template <typename T> +constexpr bool is_dereferenceable_v = is_dereferenceable<T>::value; + template<typename T> struct has_operator_equal : detail::expand_operator_equal<T> {}; template<typename T> |