Range-v3
Range algorithms, views, and actions for the Standard Library
ranges::views::keys_fn Struct Reference
+ Inheritance diagram for ranges::views::keys_fn:

Public Member Functions

template<typename Rng >
requires viewable_range<Rng> && input_range<Rng> && detail::kv_pair_like_<range_reference_t<Rng>>
keys_range_view< all_t< Rng > > operator() (Rng &&rng) const
 

Related Functions

(Note that these are not member functions.)

constexpr view_closure< keys_fnkeys {}