std::ranges::adjacent_view::iterator::operator[](3)

NAME
std::ranges::adjacent_view::iterator::operator[] - std::ranges::adjacent_view::iterator::operator[]

Synopsis
   constexpr auto operator[]( difference_type n ) const (since C++23)
       requires ranges::random_access_range<Base>;
   Returns an element at specified relative location.
   Let current_ be an underlying array of iterators.
   Equivalent to:
 return __tuple_transform([&](auto& i) -> decltype(auto) { return i[n]; }, current_);

Parameters
   n - position relative to current location

Return value
   The element at displacement n relative to the current location.

Example
// Run this code
 #include <ranges>
 #include <tuple>
 int main()
 {
     constexpr static auto v = {0, 1, 2, 3, 4, 5};
     // └──┬──┘
     // └─────────────────┐
     constexpr auto view = v | std::views::adjacent<3>; // │
     // ┌───────────────────┬──────────────┘
     // │ ┌──┴──┐
     static_assert(view[2] == std::tuple{2, 3, 4});
 }