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 >
keys_range_view< all_t< Rng > > operator() (Rng &&rng) const
 

Member Function Documentation

◆ operator()()

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