std::basic_string<CharT,Traits,Allocator>::back (3) - Linux Manuals

std::basic_string<CharT,Traits,Allocator>::back: std::basic_string<CharT,Traits,Allocator>::back

NAME

std::basic_string<CharT,Traits,Allocator>::back - std::basic_string<CharT,Traits,Allocator>::back

Synopsis


CharT& back(); (since C++11)
const CharT& back() const; (since C++11)


Returns reference to the last character in the string. The behavior is undefined if empty() == true.

Parameters


(none)

Return value


reference to the last character, equivalent to operator[](size() - 1).

Complexity


Constant

Example


// Run this code


  #include <iostream>
  #include <string>


  int main()
  {
    {
      std::string s("Exemplary");
      char& back = s.back();
      back = 's';
      std::cout << s << '\n'; // "Exemplars"
    }


    {
      std::string const c("Exemplary");
      char const& back = c.back();
      std::cout << back << '\n'; // 'y'
    }
  }

Output:


  Exemplars
  y

See also


front accesses the first character
        (public member function)
(C++11)

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