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

Synopsis of methods

constexpr view_closure< keys_fnkeys {}
 

Public Member Functions

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