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std::experi...or_category(3)   C++ Standard Libary  std::experi...or_category(3)

NAME
     std::experimental::ranges::iterator_category	 -	 std::experimen-
     tal::ranges::iterator_category

Synopsis
	Defined in header <experimental/ranges/iterator>
	template< class I >					     (1)
	struct iterator_category {};
	template< class T >					     (2)
	struct iterator_category<T*>;
	template< class T >					     (3)
	struct iterator_category<const T> : iterator_category<T> {};
	template< class T >

	    requires requires { typename T::iterator_category; }     (4)

	struct iterator_category<T>;

	Computes the iterator category of the class I, if any.	Users  may  spe-
     cialize
	iterator_category for a program-defined type.

	1) Primary template is an empty struct.
	2)  Specialization for pointers. If T is an object type, provides a mem-
     ber type type
	equal to ranges::random_access_iterator_tag. Otherwise, there is no mem-
     ber type.
	3) Specialization for const-qualified types.
	4) Specialization for types that define a public and  accessible  member
     type
	iterator_category.  If	T::iterator_category  is  the same as or derived
     from one of
	iterator category tags in namespace std, it is mapped to the correspond-
     ing tag in
	the namespace ranges as described below. Otherwise,  provides  a  member
     type type
	equal to T::iterator_category.
	  * If T::iterator_category is the same as or derives from
	    std::random_access_iterator_tag,  provides	a member type type equal
     to
	    ranges::random_access_iterator_tag.
	  * Otherwise, if T::iterator_category is the same as or derives from
	    std::bidirectional_iterator_tag, provides a member type  type  equal
     to
	    ranges::bidirectional_iterator_tag.
	  * Otherwise, if T::iterator_category is the same as or derives from
	    std::forward_iterator_tag, provides a member type type equal to
	    ranges::forward_iterator_tag.
	  * Otherwise, if T::iterator_category is the same as or derives from
	    std::input_iterator_tag, provides a member type type equal to
	    ranges::input_iterator_tag.
	  * Otherwise, if T::iterator_category is the same as or derives from
	    std::output_iterator_tag, there is no member type.

	Helper alias template

	template< class T >
	using		  iterator_category_t		  =		typename
     (ranges TS)
	ranges::iterator_category<T>::type;

Example
	 This section is incomplete
	 Reason: no example

See also
	input_iterator_tag
	output_iterator_tag
	forward_iterator_tag	   empty class types used to  indicate	iterator
     categories
	bidirectional_iterator_tag (class)
	random_access_iterator_tag
	contiguous_iterator_tag
	(C++20)
	input_iterator_tag
	output_iterator_tag	    empty  class types used to indicate iterator
     categories
	forward_iterator_tag	   (class)
	bidirectional_iterator_tag
	random_access_iterator_tag
				   compatibility traits class that  collects  an
     iteratoras
	iterator_traits 	   associated types
				   (alias template)

Category:
	  * Todo no example

http://cppreference.com 	   2024.06.10	    std::experi...or_category(3)
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