| description | Learn more about: is_array Class | ||
|---|---|---|---|
| title | is_array Class | ||
| ms.date | 11/04/2016 | ||
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| ms.assetid | 61fb2201-8de3-4746-9721-617f02df170f |
Tests if type is array.
template <class Ty>
struct is_array;Ty
The type to query.
An instance of the type predicate holds true if the type Ty is an array type, otherwise it holds false.
// std__type_traits__is_array.cpp
// compile with: /EHsc
#include <type_traits>
#include <iostream>
struct trivial
{
int val;
};
int main()
{
std::cout << "is_array<trivial> == " << std::boolalpha
<< std::is_array<trivial>::value << std::endl;
std::cout << "is_array<int> == " << std::boolalpha
<< std::is_array<int>::value << std::endl;
std::cout << "is_array<int[5]> == " << std::boolalpha
<< std::is_array<int[5]>::value << std::endl;
return (0);
}is_array<trivial> == false
is_array<int> == false
is_array<int[5]> == true
Header: <type_traits>
Namespace: std