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std::basic_..._view::back(3)   C++ Standard Libary  std::basic_..._view::back(3)

NAME
     std::basic_string_view::back - std::basic_string_view::back

Synopsis
	constexpr const_reference back() const;  (since C++17)

	Returns reference to the last character in the view. The behavior is un-
     defined 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_view>

      int main()
      {
	  for  (std::string_view  str{"ABCDEF"};  !str.empty();  str.remove_suf-
     fix(1))
	      std::cout << str.back() << ' ' << str << '\n';
      }

Output:
      F ABCDEF
      E ABCDE
      D ABCD
      C ABC
      B AB
      A A

See also
	front accesses the first character
	      (public member function)
	empty checks whether the view is empty
	      (public member function)
	back  accesses the last character
	(DR*) (public member function of  std::basic_string<CharT,Traits,Alloca-
     tor>)

http://cppreference.com 	   2024.06.10	    std::basic_..._view::back(3)
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