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

NAME
     std::is_trivial - std::is_trivial

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

	std::is_trivial is a UnaryTypeTrait.

	If  T  is  a  trivial  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_trivial or std::is_triv-
     ial_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_trivial_v = is_trivial<T>::value;

     Inherited from std::integral_constant

Member constants
	value	 true if T is a trivial 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_trivial_v<A> == true);

      struct B { B() {} };
      static_assert(std::is_trivial_v<B> == 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_trivially_copyable		   checks if a type is	trivially  copy-
     able
	(C++11) 			   (class template)
	is_default_constructible
	is_trivially_default_constructible
	is_nothrow_default_constructible    checks  if a type has a default con-
     structor
	(C++11) 			   (class template)
	(C++11)
	(C++11)

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