Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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is_array

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

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

C++ Standard Reference: 3.9.2 and 8.3.4.

Header: #include <boost/type_traits/is_array.hpp> or #include <boost/type_traits.hpp>

Compiler Compatibility: If the compiler does not support partial-specialization of class templates, then this template can give the wrong result with function types.

Examples:

is_array<int[2]> inherits from true_type.

is_array<char[2][3]>::type is the type true_type.

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

is_array<T>::value_type is the type bool.


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