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

NAME
     std::is_pod - std::is_pod

Synopsis
	Defined in header <type_traits>
	template< class T >		 (since C++11)
	struct is_pod;			 (deprecated in C++20)

	std::is_pod is a UnaryTypeTrait.

	If T is a POD type ("plain old data type"), provides the member constant
     value equal
	to true. For any other type, value is false.

	If std::remove_all_extents_t<T> is an incomplete type and not (possibly
	cv-qualified) void, the behavior is undefined.

	If  the  program  adds specializations for std::is_pod or std::is_pod_v,
     the behavior
	is undefined.

Template parameters
	T - a type to check

	Helper variable template

	template< class T >				    (since C++17)
	inline constexpr  bool	is_pod_v  =  is_pod<T>::value;	 (deprecated  in
     C++20)

     Inherited from std::integral_constant

Member constants
	value	 true if T is a POD type, false otherwise
	[static] (public static member constant)

Member functions
	operator bool converts the object to bool, returns value
		      (public member function)
	operator()    returns value
	(C++14)       (public member function)

Member types
	Type	   Definition
	value_type bool
	type	   std::integral_constant<bool, value>

Example
     // Run this code

      #include <type_traits>

      struct A { int m; };
      static_assert(std::is_pod_v<A> == true);

      class B: public A { int m; };
      static_assert(std::is_pod_v<B> == false);

      struct C { virtual void foo(); };
      static_assert(std::is_pod_v<C> == false);

      int main() {}

	Defect reports

	The  following	behavior-changing  defect  reports were applied retroac-
     tively to
	previously published C++ standards.

	   DR	 Applied to	  Behavior as published 	 Correct  behav-
     ior
	LWG 2015 C++11	    T could be an array of incomplete the behavior is
			    class  type with unknown bound     undefined in this
     case

See also
	is_standard_layout checks if a type is a standard-layout type
	(C++11) 	   (class template)
	is_trivial	   checks if a type is trivial
	(C++11) 	   (class template)
	is_scalar	   checks if a type is a scalar type
	(C++11) 	   (class template)

External links
	Why is std::is_pod deprecated in C++20? a StackOverflow

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