std::experimental::ranges::IndirectUnaryPredicate
Min standard notice:
Header: <experimental/ranges/iterator>
# Declarations
template< class F, class I >
concept bool IndirectUnaryPredicate =
Readable<I> && CopyConstructible<F> &&
Predicate<F&, ranges::value_type_t<I>&> &&
Predicate<F&, ranges::reference_t<I>> &&
Predicate<F&, ranges::iter_common_reference_t<I>>;
(ranges TS)