std::ranges::output_range

From cppreference.com
< cpp‎ | ranges
 
 
Ranges library
Range adaptors
 
Defined in header <ranges>
template<class R, class T>

concept output_range =

    ranges::range<R> && std::output_iterator<ranges::iterator_t<R>, T>;
(since C++20)

The output_range concept is a refinement of range for which ranges::begin returns a model of output_iterator.