home | help 
std::basic_...first_not_of(3)  C++ Standard Libary std::basic_...first_not_of(3)

NAME
     std::basic_string_view::find_first_not_of		   -		std::ba-
     sic_string_view::find_first_not_of

Synopsis
	constexpr size_type
	    find_first_not_of( basic_string_view v, size_type pos = 0  )     (1)
     (since C++17)
	const noexcept;
	constexpr size_type
	    find_first_not_of(	CharT  ch, size_type pos = 0 ) const	     (2)
     (since C++17)
	noexcept;
	constexpr size_type
	    find_first_not_of( const CharT* s, size_type pos,  size_type     (3)
     (since C++17)
	count ) const;
	constexpr  size_type						     (4)
     (since C++17)
	    find_first_not_of( const CharT* s, size_type pos = 0 ) const;

	Finds the first character not equal to any  of	the  characters  in  the
     given character
	sequence.

	1)  Finds the first character not equal to any of the characters of v in
     this view,
	starting at position pos.
	2) Equivalent to find_first_not_of(basic_string_view(std::addressof(ch),
     1), pos).
	3) Equivalent to find_first_not_of(basic_string_view(s, count), pos).
	4) Equivalent to find_first_not_of(basic_string_view(s), pos).

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

Return value
	Position of the first character not equal to any of  the  characters  in
     the given
	string, or std::string_view::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;

      int main()
      {
	  static_assert(2 == "BCDEF"sv.find_first_not_of("ABC"));
			  //	^
	  static_assert(4 == "BCDEF"sv.find_first_not_of("ABC", 4));
			  //	  ^
	  static_assert(1 == "BCDEF"sv.find_first_not_of('B'));
			  //   ^
	  static_assert(3 == "BCDEF"sv.find_first_not_of('D', 2));
			  //	 ^
      }

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_last_of	  find last occurrence of characters
			  (public member function)
	find_last_not_of  find last absence of characters
			  (public member function)
			  find first absence of characters
	find_first_not_of (public member function of
			  std::basic_string<CharT,Traits,Allocator>)

http://cppreference.com 	   2024.06.10	   std::basic_...first_not_of(3)
home | help