template <typename T, std::size_t N>
class array {
// types:
typedef T& reference;
typedef T const& const_reference;
typedef /*implementation-defined*/ iterator;
typedef /*implementation-defined*/ const_iterator;
typedef std::size_t size_type;
typedef std::ptrdiff_t difference_type;
typedef T value_type;
typedef T* pointer;
typedef T const* const_pointer;
typedef sprout::reverse_iterator<iterator> reverse_iterator;
typedef sprout::reverse_iterator<const_iterator> const_reverse_iterator;
// constants:
SPROUT_STATIC_CONSTEXPR size_type static_size = N;
T elems[N ? N : 1]; // exposition only
// construct/copy/destroy:
template<typename T2>
array& operator=(array<T2, N> const& rhs);
template<typename T2>
array& operator=(array<T2, N>&& rhs);
// modifiers:
void fill(const_reference u);
SPROUT_CONSTEXPR array fill(const_reference value) const;
void assign(const_reference value);
SPROUT_CONSTEXPR array assign(const_reference value) const;
void swap(array&) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(std::swap(std::declval<T&>(), std::declval<T&>())));
// iterators:
iterator begin() SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_iterator begin() const SPROUT_NOEXCEPT;
iterator end() SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_iterator end() const SPROUT_NOEXCEPT;
reverse_iterator rbegin() SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_reverse_iterator rbegin() const SPROUT_NOEXCEPT;
reverse_iterator rend() SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_reverse_iterator rend() const SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_iterator cbegin() const SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_iterator cend() const SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_reverse_iterator crbegin() const SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_reverse_iterator crend() const SPROUT_NOEXCEPT;
// capacity:
SPROUT_CONSTEXPR size_type size() const SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR size_type max_size() const SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT;
// element access:
reference operator[](size_type n);
SPROUT_CONSTEXPR const_reference operator[](size_type n) const;
reference at(size_type n);
SPROUT_CONSTEXPR const_reference at(size_type n) const;
reference front();
SPROUT_CONSTEXPR const_reference front() const;
reference back();
SPROUT_CONSTEXPR const_reference back() const;
pointer data() SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_pointer data() const SPROUT_NOEXCEPT;
pointer c_array() SPROUT_NOEXCEPT;
SPROUT_CONSTEXPR const_pointer c_array() const SPROUT_NOEXCEPT;
};