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std::basic_...ind_last_of(3)   C++ Standard Libary  std::basic_...ind_last_of(3)

NAME
     std::basic_string_view::find_last_of - std::basic_string_view::find_last_of

Synopsis
	constexpr size_type
	    find_last_of(  basic_string_view  v, size_type pos = npos )      (1)
     (since C++17)
	const noexcept;
	constexpr  size_type						     (2)
     (since C++17)
	    find_last_of( CharT ch, size_type pos = npos ) const noexcept;
	constexpr size_type
	    find_last_of(  const  CharT* s, size_type pos, size_type count ) (3)
     (since C++17)
	const;
	constexpr  size_type						     (4)
     (since C++17)
	    find_last_of( const CharT* s, size_type pos = npos ) const;

	Finds the last character equal to one of characters in the given charac-
     ter sequence.
	Exact  search  algorithm is not specified. The search considers only the
     interval
	[0, pos]. If the character is not present in the interval, npos will  be
     returned.

	1)  Finds the last occurence of any of the characters of v in this view,
     ending at
	position pos.
	2) Equivalent to find_last_of(basic_string_view(std::addressof(ch),  1),
     pos).
	3) Equivalent to find_last_of(basic_string_view(s, count), pos).
	4) Equivalent to find_last_of(basic_string_view(s), pos).

Parameters
	v     - view to search for
	pos   - position at which the search is to finish
	count - length of the string of characters to search for
	s     - pointer to a string of characters to search for
	ch    - character to search for

Return value
	Position  of  the  last occurrence of any character of the substring, or
     npos if no
	such character is found.

Complexity
	O(size() * v.size()) at worst.

Example
     // Run this code

      #include <string_view>

      using namespace std::literals;
      constexpr auto N = std::string_view::npos;

      static_assert(
	  5 == "delete"sv.find_last_of("cdef"sv) &&
	    //	     aaaaaaaaaaaaaaaaaaaaaa
	  N == "double"sv.find_last_of("fghi"sv) &&
	    //
	  0 == "else"sv.find_last_of("bcde"sv, 2 /* pos [0..2]: "els" */) &&
	    //	aaaaaaaaaaaaaaaaaaaaaaaaaa
	  N == "explicit"sv.find_last_of("abcd"sv, 4 /* pos [0..4]: "expli"  */)
     &&
	    //
	  3 == "extern"sv.find_last_of('e') &&
	    //	   aaaaaaaaaaaaaaaaaaaaaa
	  N == "false"sv.find_last_of('x') &&
	    //
	  0 == "inline"sv.find_last_of('i', 2 /* pos [0..2]: "inl" */) &&
	    //	aaaaaaaaaaaaaaaaaaaaaaaaa
	  N == "mutable"sv.find_last_of('a', 2 /* pos [0..2]: "mut" */) &&
	    //
	  3  == "namespace"sv.find_last_of("cdef", 3 /* pos [0..3]: "name" */, 3
     /* "cde" */) &&
	    //	   aaaaaaaaaaaaaaaaaaaaaaaaaaa
	  N == "namespace"sv.find_last_of("cdef", 3 /* pos [0..3]: "name" */,  2
     /* "cd" */)
      );

      int main() {}

See also
	find		  find characters in the view
			  (public member function)
	rfind		  find the last occurrence of a substring
			  (public member function)
	find_first_of	  find first occurrence of characters
			  (public member function)
	find_first_not_of find first absence of characters
			  (public member function)
	find_last_not_of  find last absence of characters
			  (public member function)
			  find last occurrence of characters
	find_last_of	  (public member function of
			  std::basic_string<CharT,Traits,Allocator>)

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