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

NAME
     std::remove_cvref - std::remove_cvref

Synopsis
	Defined in header <type_traits>
	template< class T >		 (since C++20)
	struct remove_cvref;

	If  the  type  T  is  a reference type, provides the member typedef type
     which is the
	type referred to by T with its topmost cv-qualifiers removed.  Otherwise
     type is T
	with its topmost cv-qualifiers removed.

	If  the program adds specializations for std::remove_cvref, the behavior
     is
	undefined.

Member types
	Name Definition
	type the type referred by T or T itself if it is not a	reference,  with
     top-level
	     cv-qualifiers removed

Helper types
	template< class T >			       (since C++20)
	using remove_cvref_t = remove_cvref<T>::type;

Possible implementation
	template<class T>
	struct remove_cvref
	{
	    using type = std::remove_cv_t<std::remove_reference_t<T>>;
	};

Notes
	  Feature-test macro	Value	 Std	    Feature
	__cpp_lib_remove_cvref 201711L (C++20) std::remove_cvref

Example
     // Run this code

      #include <type_traits>

      int main()
      {
	  static_assert(std::is_same_v<std::remove_cvref_t<int>, int>);
	  static_assert(std::is_same_v<std::remove_cvref_t<int&>, int>);
	  static_assert(std::is_same_v<std::remove_cvref_t<int&&>, int>);
	  static_assert(std::is_same_v<std::remove_cvref_t<const int&>, int>);
	  static_assert(std::is_same_v<std::remove_cvref_t<const	int[2]>,
     int[2]>);
	  static_assert(std::is_same_v<std::remove_cvref_t<const     int(&)[2]>,
     int[2]>);
	  static_assert(std::is_same_v<std::remove_cvref_t<int(int)>,
     int(int)>);
      }

See also
	remove_cv
	remove_const
	remove_volatile  removes const and/or volatile specifiers from the given
     type
	(C++11) 	 (class template)
	(C++11)
	(C++11)
	remove_reference removes a reference from the given type
	(C++11) 	 (class template)
	decay		 applies type transformations as when passing a function
     argument by
	(C++11) 	 value
			 (class template)

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