std::is_unbounded_array

Since C++20

Header: <type_traits>

std::is_unbounded_array is a UnaryTypeTrait.

# Declarations

template< class T >
struct is_unbounded_array;

(since C++20)

# Notes

Feature-test macro Value Std Feature __cpp_lib_bounded_array_traits 201902L (C++20) std::is_bounded_array, std::is_unbounded_array

# Example

#include <type_traits>
 
class A {};
 
static_assert
(""
    && std::is_unbounded_array_v<A> == false
    && std::is_unbounded_array_v<A[]> == true
    && std::is_unbounded_array_v<A[3]> == false
    && std::is_unbounded_array_v<float> == false
    && std::is_unbounded_array_v<int> == false
    && std::is_unbounded_array_v<int[]> == true
    && std::is_unbounded_array_v<int[3]> == false
);
 
int main() {}

# See also