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### is_unbounded_array

    template<class T>
    struct is_unbounded_array
        : true_type-or-false_type { };

Inherits: If T is a (possibly cv-qualified) array type of unknown bound, then inherits from true_type, otherwise inherits from false_type.

Header: `#include <boost/type_traits/is_unbounded_array.hpp>`

Compiler Compatibility: All current compilers are supported by this trait.

Examples:

> `is_unbounded_array<int[]>` inherits from `true_type`.

> `is_unbounded_array<char[][3]>::type` is the type `true_type`.

> `is_unbounded_array<double[]>::value` is an integral constant expression that evaluates to true.

> `is_unbounded_array<T>::value_type` is the type `bool`.