deduction guides for std::ranges::join_view
                
                
                From cppreference.com
                    
                                        
                    
                    
                                                            
                    | template<class R> explicit join_view(R&&) -> join_view<views::all_t<R>>; | (since C++20) | |
The deduction guide is provided for std::ranges::join_view to allow deduction from range.
If R is a view, the deduced type is join_view<R>; otherwise, the deduced type is usually join_view<ranges::ref_view<R>>.
Example
| This section is incomplete Reason: no example |