is_array.hpp

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// SPDX-License-Identifier: BSL-1.0
// SPDX-FileCopyrightText: Copyright (C) 2019 Tobias Hienzsch
 
#ifndef TETL_TYPE_TRAITS_IS_ARRAY_HPP
#define TETL_TYPE_TRAITS_IS_ARRAY_HPP
 
#include <etl/_cstddef/size_t.hpp>
#include <etl/_type_traits/bool_constant.hpp>
 
namespace etl {
 
/// \brief Checks whether T is an array type. Provides the member constant value
/// which is equal to true, if T is an array type. Otherwise, value is equal to
/// false.
///
/// \details The behavior of a program that adds specializations for is_array or
/// is_array_v is undefined.
///
/// \ingroup type_traits
template <typename T>
struct is_array : false_type { };
 
template <typename T>
struct is_array<T[]> : true_type { };
 
template <typename T, size_t N>
struct is_array<T[N]> : true_type { };
 
/// \ingroup type_traits
template <typename T>
inline constexpr bool is_array_v = is_array<T>::value;
 
} // namespace etl
 
#endif // TETL_TYPE_TRAITS_IS_ARRAY_HPP