26 Containers library [containers]

26.3 Sequence containers [sequences]

26.3.7 Class template array [array]

26.3.7.9 Tuple interface to class template array [array.tuple]

template <class T, size_t N> struct tuple_size<array<T, N>> : integral_constant<size_t, N> { };

tuple_element<I, array<T, N>>::type

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Requires: I < N. The program is ill-formed if I is out of bounds.

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Value: The type T.

template <size_t I, class T, size_t N> constexpr T& get(array<T, N>& a) noexcept; template <size_t I, class T, size_t N> constexpr T&& get(array<T, N>&& a) noexcept; template <size_t I, class T, size_t N> constexpr const T& get(const array<T, N>& a) noexcept; template <size_t I, class T, size_t N> constexpr const T&& get(const array<T, N>&& a) noexcept;

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Requires: I < N. The program is ill-formed if I is out of bounds.

4
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Returns: A reference to the Ith element of a, where indexing is zero-based.