#ifndef _LIBCPP_ARRAY
#define _LIBCPP_ARRAY
#include <__config>
#include <__tuple>
#include <type_traits>
#include <utility>
#include <iterator>
#include <algorithm>
#include <stdexcept>
#if defined(_LIBCPP_NO_EXCEPTIONS)
#include <cassert>
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp, size_t _Size>
struct _LIBCPP_TYPE_VIS_ONLY array
{
typedef array __self;
typedef _Tp value_type;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef value_type* iterator;
typedef const value_type* const_iterator;
typedef value_type* pointer;
typedef const value_type* const_pointer;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef std::reverse_iterator<iterator> reverse_iterator;
typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
value_type __elems_[_Size > 0 ? _Size : 1];
_LIBCPP_INLINE_VISIBILITY void fill(const value_type& __u)
{_VSTD::fill_n(__elems_, _Size, __u);}
_LIBCPP_INLINE_VISIBILITY
void swap(array& __a) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value)
{_VSTD::swap_ranges(__elems_, __elems_ + _Size, __a.__elems_);}
_LIBCPP_INLINE_VISIBILITY
iterator begin() _NOEXCEPT {return iterator(__elems_);}
_LIBCPP_INLINE_VISIBILITY
const_iterator begin() const _NOEXCEPT {return const_iterator(__elems_);}
_LIBCPP_INLINE_VISIBILITY
iterator end() _NOEXCEPT {return iterator(__elems_ + _Size);}
_LIBCPP_INLINE_VISIBILITY
const_iterator end() const _NOEXCEPT {return const_iterator(__elems_ + _Size);}
_LIBCPP_INLINE_VISIBILITY
reverse_iterator rbegin() _NOEXCEPT {return reverse_iterator(end());}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rbegin() const _NOEXCEPT {return const_reverse_iterator(end());}
_LIBCPP_INLINE_VISIBILITY
reverse_iterator rend() _NOEXCEPT {return reverse_iterator(begin());}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rend() const _NOEXCEPT {return const_reverse_iterator(begin());}
_LIBCPP_INLINE_VISIBILITY
const_iterator cbegin() const _NOEXCEPT {return begin();}
_LIBCPP_INLINE_VISIBILITY
const_iterator cend() const _NOEXCEPT {return end();}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crbegin() const _NOEXCEPT {return rbegin();}
_LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crend() const _NOEXCEPT {return rend();}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR size_type size() const _NOEXCEPT {return _Size;}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR size_type max_size() const _NOEXCEPT {return _Size;}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR bool empty() const _NOEXCEPT {return _Size == 0;}
_LIBCPP_INLINE_VISIBILITY reference operator[](size_type __n) {return __elems_[__n];}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference operator[](size_type __n) const {return __elems_[__n];}
reference at(size_type __n);
_LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference at(size_type __n) const;
_LIBCPP_INLINE_VISIBILITY reference front() {return __elems_[0];}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference front() const {return __elems_[0];}
_LIBCPP_INLINE_VISIBILITY reference back() {return __elems_[_Size > 0 ? _Size-1 : 0];}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference back() const {return __elems_[_Size > 0 ? _Size-1 : 0];}
_LIBCPP_INLINE_VISIBILITY
value_type* data() _NOEXCEPT {return __elems_;}
_LIBCPP_INLINE_VISIBILITY
const value_type* data() const _NOEXCEPT {return __elems_;}
};
template <class _Tp, size_t _Size>
typename array<_Tp, _Size>::reference
array<_Tp, _Size>::at(size_type __n)
{
if (__n >= _Size)
#ifndef _LIBCPP_NO_EXCEPTIONS
throw out_of_range("array::at");
#else
assert(!"array::at out_of_range");
#endif
return __elems_[__n];
}
template <class _Tp, size_t _Size>
_LIBCPP_CONSTEXPR_AFTER_CXX11
typename array<_Tp, _Size>::const_reference
array<_Tp, _Size>::at(size_type __n) const
{
if (__n >= _Size)
#ifndef _LIBCPP_NO_EXCEPTIONS
throw out_of_range("array::at");
#else
assert(!"array::at out_of_range");
#endif
return __elems_[__n];
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return _VSTD::equal(__x.__elems_, __x.__elems_ + _Size, __y.__elems_);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return !(__x == __y);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return _VSTD::lexicographical_compare(__x.__elems_, __x.__elems_ + _Size, __y.__elems_, __y.__elems_ + _Size);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return __y < __x;
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return !(__y < __x);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
{
return !(__x < __y);
}
template <class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
__is_swappable<_Tp>::value,
void
>::type
swap(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
_NOEXCEPT_(__is_nothrow_swappable<_Tp>::value)
{
__x.swap(__y);
}
template <class _Tp, size_t _Size>
class _LIBCPP_TYPE_VIS_ONLY tuple_size<array<_Tp, _Size> >
: public integral_constant<size_t, _Size> {};
template <size_t _Ip, class _Tp, size_t _Size>
class _LIBCPP_TYPE_VIS_ONLY tuple_element<_Ip, array<_Tp, _Size> >
{
public:
typedef _Tp type;
};
template <size_t _Ip, class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&
get(array<_Tp, _Size>& __a) _NOEXCEPT
{
static_assert(_Ip < _Size, "Index out of bounds in std::get<> (std::array)");
return __a.__elems_[_Ip];
}
template <size_t _Ip, class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _Tp&
get(const array<_Tp, _Size>& __a) _NOEXCEPT
{
static_assert(_Ip < _Size, "Index out of bounds in std::get<> (const std::array)");
return __a.__elems_[_Ip];
}
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <size_t _Ip, class _Tp, size_t _Size>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&&
get(array<_Tp, _Size>&& __a) _NOEXCEPT
{
static_assert(_Ip < _Size, "Index out of bounds in std::get<> (std::array &&)");
return _VSTD::move(__a.__elems_[_Ip]);
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_ARRAY