Defined in header <type_traits> | ||
|---|---|---|
template< class T > struct is_aggregate; | (since C++17) |
Checks if T is an aggregate type. The member constant value is equal to true if T is an aggregate type and false otherwise.
The behavior is undefined if std::remove_all_extents_t<T> is an incomplete type other than (possibly cv-qualified) void.
| T | - | a type to check |
template< class T > inline constexpr bool is_aggregate_v = std::is_aggregate<T>::value; | (since C++17) |
| value
[static] | true if T is an aggregate type , false otherwise (public static member constant) |
| operator bool | converts the object to bool, returns value (public member function) |
| operator()
(C++14) | returns value (public member function) |
| Type | Definition |
|---|---|
value_type | bool |
type | std::integral_constant<bool, value> |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/types/is_aggregate