std::experimental::basic_string_view<CharT,Traits>::back
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                    < cpp | experimental | basic string view
                    
                                                            
                    |   constexpr const_reference back() const;  | 
(library fundamentals TS) | |
Returns reference to the last character in the view.
Parameters
(none)
Return value
Reference to the last character, equivalent to operator[](size() - 1).
Complexity
Constant.
See also
|   accesses the first character  (public member function)  |