From cppreference.com
template<classT>structis_pod;(since C++11)
(deprecated in C++20)std::is_pod is a
.
If T is a
("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<classT>constexprboolis_pod_v=is_pod<T>::value;(since C++17)
(deprecated in C++20)Inherited from
Member constants
value
[static]
true if T is a POD type, false otherwise
(public static member constant)Member functions
operator bool
converts the object to bool, returns value
(public member function)operator()
(C++14)
returns value
(public member function)Member types
Type Definition value_typebooltypestd::integral_constant<bool,value>Example
Run this code
#include<type_traits>structA{intm;};static_assert(std::is_pod_v<A>==true);classB:publicA{intm;};static_assert(std::is_pod_v<B>==false);structC{virtualvoidfoo();};static_assert(std::is_pod_v<C>==false);intmain(){}Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR Applied to Behavior as published Correct behavior
C++11 T could be an array of incomplete
class type with unknown bound the behavior is
undefined in this case See also
External links