is_array Class
The latest version of this topic can be found at is_array Class.
Tests if type is array.
Syntax
template <class Ty>
struct is_array;
Parameters
Ty
The type to query.
Remarks
An instance of the type predicate holds true if the type Ty is an array type, otherwise it holds false.
Example
// std_tr1__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
Requirements
Header: <type_traits>
Namespace: std