std::ranges::random_access_range(3)

NAME
std::ranges::random_access_range - std::ranges::random_access_range

Synopsis
   Defined in header <ranges>
   template< class T >
   concept random_access_range = (since C++20)
   ranges::bidirectional_range<T> &&
   std::random_access_iterator<ranges::iterator_t<T>>;
   The random_access_range concept is a refinement of range for which ranges::begin
   returns a model of random_access_iterator.

Example
// Run this code
 #include <ranges>
 #include <vector>
 #include <array>
 #include <deque>
 #include <valarray>
 #include <list>
 #include <set>
 template<typename T> concept RAR = std::ranges::random_access_range<T>;
 int main()
 {
     int a[4];
     static_assert(
             RAR<std::vector<int>> and
             RAR<std::vector<bool>> and
             RAR<std::deque<int>> and
             RAR<std::valarray<int>> and
             RAR<decltype(a)> and
         not RAR<std::list<int>> and
         not RAR<std::set<int>> and
             RAR<std::array<std::list<int>,42>>
     );
 }

See also
   ranges::sized_range specifies that a range knows its size in constant time
   (C++20) (concept)
   ranges::contiguous_range specifies a range whose iterator type satisfies
   (C++20) contiguous_iterator
                        (concept)