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std::projected_value_t(3)     C++ Standard Libary    std::projected_value_t(3)

NAME
       std::projected_value_t -	std::projected_value_t

Synopsis
	  Defined in header <iterator>
	  template< std::indirectly_readable I,

		    std::indirectly_regular_unary_invocable<I> Proj >
	  using			      projected_value_t			     =
       (since C++26)

	      std::remove_cvref_t<std::invoke_result<Proj&,
	  std::iter_value_t<I>&>>;

	  The alias template  projected_value_t	 obtains  the  value  type  by
       stripping any
	  reference and	its topmost cv-qualifiers of the result	type of	apply-
       ing Proj	to
	  std::iter_value_t<I>&.

	  projected_value_t  is	 used  to  determine the default value type in
       some algorithms
	  such as ranges::contains.

Template parameters
	  I    - an indirectly readable	type
	  Proj - projection applied to an lvalue reference to value type of I

Notes
			Feature-test  macro			Value	   Std
       Feature
									    de-
       fault  template type __cpp_lib_default_template_type_for_algorithm_val-
       ues 202403L (C++26) for algorithm values
									    us-
       ing
									    std::pro-
       jected_value_t

Example
	   This	section	is incomplete
	   Reason: no example

See also
	  indirect_result_t computes the result	of invoking a callable	object
       on the result of
	  (C++20)	     dereferencing  some  set  of  indirectly_readable
       types
			    (alias template)
	  projected	    helper template for	specifying the constraints  on
       algorithms that
	  (C++20)	    accept projections
			    (class template)

Category:
	    * Todo no example

http://cppreference.com		  2024.06.10	     std::projected_value_t(3)

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