| // -*- C++ -*- |
| //===---------------------------- array -----------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_ARRAY |
| #define _LIBCPP_ARRAY |
| |
| /* |
| array synopsis |
| |
| namespace std |
| { |
| template <class T, size_t N > |
| struct array |
| { |
| // types: |
| typedef T & reference; |
| typedef const T & const_reference; |
| typedef implementation defined iterator; |
| typedef implementation defined const_iterator; |
| typedef size_t size_type; |
| typedef ptrdiff_t difference_type; |
| typedef T value_type; |
| typedef T* pointer; |
| typedef const T* const_pointer; |
| typedef std::reverse_iterator<iterator> reverse_iterator; |
| typedef std::reverse_iterator<const_iterator> const_reverse_iterator; |
| |
| // No explicit construct/copy/destroy for aggregate type |
| void fill(const T& u); // constexpr in C++20 |
| void swap(array& a) noexcept(is_nothrow_swappable_v<T>); // constexpr in C++20 |
| |
| // iterators: |
| iterator begin() noexcept; // constexpr in C++17 |
| const_iterator begin() const noexcept; // constexpr in C++17 |
| iterator end() noexcept; // constexpr in C++17 |
| const_iterator end() const noexcept; // constexpr in C++17 |
| |
| reverse_iterator rbegin() noexcept; // constexpr in C++17 |
| const_reverse_iterator rbegin() const noexcept; // constexpr in C++17 |
| reverse_iterator rend() noexcept; // constexpr in C++17 |
| const_reverse_iterator rend() const noexcept; // constexpr in C++17 |
| |
| const_iterator cbegin() const noexcept; // constexpr in C++17 |
| const_iterator cend() const noexcept; // constexpr in C++17 |
| const_reverse_iterator crbegin() const noexcept; // constexpr in C++17 |
| const_reverse_iterator crend() const noexcept; // constexpr in C++17 |
| |
| // capacity: |
| constexpr size_type size() const noexcept; |
| constexpr size_type max_size() const noexcept; |
| constexpr bool empty() const noexcept; |
| |
| // element access: |
| reference operator[](size_type n); // constexpr in C++17 |
| const_reference operator[](size_type n) const; // constexpr in C++14 |
| reference at(size_type n); // constexpr in C++17 |
| const_reference at(size_type n) const; // constexpr in C++14 |
| |
| reference front(); // constexpr in C++17 |
| const_reference front() const; // constexpr in C++14 |
| reference back(); // constexpr in C++17 |
| const_reference back() const; // constexpr in C++14 |
| |
| T* data() noexcept; // constexpr in C++17 |
| const T* data() const noexcept; // constexpr in C++17 |
| }; |
| |
| template <class T, class... U> |
| array(T, U...) -> array<T, 1 + sizeof...(U)>; // C++17 |
| |
| template <class T, size_t N> |
| bool operator==(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20 |
| template <class T, size_t N> |
| bool operator!=(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20 |
| template <class T, size_t N> |
| bool operator<(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20 |
| template <class T, size_t N> |
| bool operator>(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20 |
| template <class T, size_t N> |
| bool operator<=(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20 |
| template <class T, size_t N> |
| bool operator>=(const array<T,N>& x, const array<T,N>& y); // constexpr in C++20 |
| |
| template <class T, size_t N > |
| void swap(array<T,N>& x, array<T,N>& y) noexcept(noexcept(x.swap(y))); // constexpr in C++20 |
| |
| template <class T, size_t N> |
| constexpr array<remove_cv_t<T>, N> to_array(T (&a)[N]); // C++20 |
| template <class T, size_t N> |
| constexpr array<remove_cv_t<T>, N> to_array(T (&&a)[N]); // C++20 |
| |
| template <class T> struct tuple_size; |
| template <size_t I, class T> struct tuple_element; |
| template <class T, size_t N> struct tuple_size<array<T, N>>; |
| template <size_t I, class T, size_t N> struct tuple_element<I, array<T, N>>; |
| template <size_t I, class T, size_t N> T& get(array<T, N>&) noexcept; // constexpr in C++14 |
| template <size_t I, class T, size_t N> const T& get(const array<T, N>&) noexcept; // constexpr in C++14 |
| template <size_t I, class T, size_t N> T&& get(array<T, N>&&) noexcept; // constexpr in C++14 |
| template <size_t I, class T, size_t N> const T&& get(const array<T, N>&&) noexcept; // constexpr in C++14 |
| |
| } // std |
| |
| */ |
| |
| #include <__config> |
| #include <__debug> |
| #include <__tuple> |
| #include <algorithm> |
| #include <cstdlib> // for _LIBCPP_UNREACHABLE |
| #include <iterator> |
| #include <stdexcept> |
| #include <type_traits> |
| #include <utility> |
| #include <version> |
| |
| #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_TEMPLATE_VIS array |
| { |
| // types: |
| 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 _VSTD::reverse_iterator<iterator> reverse_iterator; |
| typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator; |
| |
| _Tp __elems_[_Size]; |
| |
| // No explicit construct/copy/destroy for aggregate type |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| void fill(const value_type& __u) { |
| _VSTD::fill_n(data(), _Size, __u); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| void swap(array& __a) _NOEXCEPT_(__is_nothrow_swappable<_Tp>::value) { |
| _VSTD::swap_ranges(data(), data() + _Size, __a.data()); |
| } |
| |
| // iterators: |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| iterator begin() _NOEXCEPT {return iterator(data());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator begin() const _NOEXCEPT {return const_iterator(data());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| iterator end() _NOEXCEPT {return iterator(data() + _Size);} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator end() const _NOEXCEPT {return const_iterator(data() + _Size);} |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reverse_iterator rbegin() _NOEXCEPT {return reverse_iterator(end());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator rbegin() const _NOEXCEPT {return const_reverse_iterator(end());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reverse_iterator rend() _NOEXCEPT {return reverse_iterator(begin());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator rend() const _NOEXCEPT {return const_reverse_iterator(begin());} |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator cbegin() const _NOEXCEPT {return begin();} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator cend() const _NOEXCEPT {return end();} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator crbegin() const _NOEXCEPT {return rbegin();} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator crend() const _NOEXCEPT {return rend();} |
| |
| // capacity: |
| _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_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR bool empty() const _NOEXCEPT {return _Size == 0;} |
| |
| // element access: |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reference operator[](size_type __n) _NOEXCEPT { |
| _LIBCPP_ASSERT(__n < _Size, "out-of-bounds access in std::array<T, N>"); |
| return __elems_[__n]; |
| } |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| const_reference operator[](size_type __n) const _NOEXCEPT { |
| _LIBCPP_ASSERT(__n < _Size, "out-of-bounds access in std::array<T, N>"); |
| return __elems_[__n]; |
| } |
| |
| _LIBCPP_CONSTEXPR_AFTER_CXX14 reference at(size_type __n) |
| { |
| if (__n >= _Size) |
| __throw_out_of_range("array::at"); |
| return __elems_[__n]; |
| } |
| |
| _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference at(size_type __n) const |
| { |
| if (__n >= _Size) |
| __throw_out_of_range("array::at"); |
| return __elems_[__n]; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reference front() _NOEXCEPT {return (*this)[0];} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference front() const _NOEXCEPT {return (*this)[0];} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 reference back() _NOEXCEPT {return (*this)[_Size - 1];} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 const_reference back() const _NOEXCEPT {return (*this)[_Size - 1];} |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| value_type* data() _NOEXCEPT {return __elems_;} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const value_type* data() const _NOEXCEPT {return __elems_;} |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS array<_Tp, 0> |
| { |
| // types: |
| 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 _VSTD::reverse_iterator<iterator> reverse_iterator; |
| typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator; |
| |
| typedef typename conditional<is_const<_Tp>::value, const char, |
| char>::type _CharType; |
| |
| struct _ArrayInStructT { _Tp __data_[1]; }; |
| _ALIGNAS_TYPE(_ArrayInStructT) _CharType __elems_[sizeof(_ArrayInStructT)]; |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| value_type* data() _NOEXCEPT {return nullptr;} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const value_type* data() const _NOEXCEPT {return nullptr;} |
| |
| // No explicit construct/copy/destroy for aggregate type |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| void fill(const value_type&) { |
| static_assert(!is_const<_Tp>::value, |
| "cannot fill zero-sized array of type 'const T'"); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| void swap(array&) _NOEXCEPT { |
| static_assert(!is_const<_Tp>::value, |
| "cannot swap zero-sized array of type 'const T'"); |
| } |
| |
| // iterators: |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| iterator begin() _NOEXCEPT {return iterator(data());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator begin() const _NOEXCEPT {return const_iterator(data());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| iterator end() _NOEXCEPT {return iterator(data());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator end() const _NOEXCEPT {return const_iterator(data());} |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reverse_iterator rbegin() _NOEXCEPT {return reverse_iterator(end());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator rbegin() const _NOEXCEPT {return const_reverse_iterator(end());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reverse_iterator rend() _NOEXCEPT {return reverse_iterator(begin());} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator rend() const _NOEXCEPT {return const_reverse_iterator(begin());} |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator cbegin() const _NOEXCEPT {return begin();} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_iterator cend() const _NOEXCEPT {return end();} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator crbegin() const _NOEXCEPT {return rbegin();} |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| const_reverse_iterator crend() const _NOEXCEPT {return rend();} |
| |
| // capacity: |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR size_type size() const _NOEXCEPT {return 0; } |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR size_type max_size() const _NOEXCEPT {return 0;} |
| _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR bool empty() const _NOEXCEPT {return true;} |
| |
| // element access: |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reference operator[](size_type) _NOEXCEPT { |
| _LIBCPP_ASSERT(false, "cannot call array<T, 0>::operator[] on a zero-sized array"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| const_reference operator[](size_type) const _NOEXCEPT { |
| _LIBCPP_ASSERT(false, "cannot call array<T, 0>::operator[] on a zero-sized array"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reference at(size_type) { |
| __throw_out_of_range("array<T, 0>::at"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| const_reference at(size_type) const { |
| __throw_out_of_range("array<T, 0>::at"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reference front() _NOEXCEPT { |
| _LIBCPP_ASSERT(false, "cannot call array<T, 0>::front() on a zero-sized array"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| const_reference front() const _NOEXCEPT { |
| _LIBCPP_ASSERT(false, "cannot call array<T, 0>::front() on a zero-sized array"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| reference back() _NOEXCEPT { |
| _LIBCPP_ASSERT(false, "cannot call array<T, 0>::back() on a zero-sized array"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| const_reference back() const _NOEXCEPT { |
| _LIBCPP_ASSERT(false, "cannot call array<T, 0>::back() on a zero-sized array"); |
| _LIBCPP_UNREACHABLE(); |
| } |
| }; |
| |
| |
| #if _LIBCPP_STD_VER >= 17 |
| template<class _Tp, class... _Args, |
| class = enable_if_t<__all<_IsSame<_Tp, _Args>::value...>::value> |
| > |
| array(_Tp, _Args...) |
| -> array<_Tp, 1 + sizeof...(_Args)>; |
| #endif |
| |
| template <class _Tp, size_t _Size> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR_AFTER_CXX17 bool |
| operator==(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y) |
| { |
| return _VSTD::equal(__x.begin(), __x.end(), __y.begin()); |
| } |
| |
| template <class _Tp, size_t _Size> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR_AFTER_CXX17 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 |
| _LIBCPP_CONSTEXPR_AFTER_CXX17 bool |
| operator<(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y) |
| { |
| return _VSTD::lexicographical_compare(__x.begin(), __x.end(), |
| __y.begin(), __y.end()); |
| } |
| |
| template <class _Tp, size_t _Size> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR_AFTER_CXX17 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 |
| _LIBCPP_CONSTEXPR_AFTER_CXX17 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 |
| _LIBCPP_CONSTEXPR_AFTER_CXX17 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 _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| typename enable_if |
| < |
| _Size == 0 || |
| __is_swappable<_Tp>::value, |
| void |
| >::type |
| swap(array<_Tp, _Size>& __x, array<_Tp, _Size>& __y) |
| _NOEXCEPT_(noexcept(__x.swap(__y))) |
| { |
| __x.swap(__y); |
| } |
| |
| template <class _Tp, size_t _Size> |
| struct _LIBCPP_TEMPLATE_VIS tuple_size<array<_Tp, _Size> > |
| : public integral_constant<size_t, _Size> {}; |
| |
| template <size_t _Ip, class _Tp, size_t _Size> |
| struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, array<_Tp, _Size> > |
| { |
| static_assert(_Ip < _Size, "Index out of bounds in std::tuple_element<> (std::array)"); |
| 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]; |
| } |
| |
| 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]); |
| } |
| |
| 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 _VSTD::move(__a.__elems_[_Ip]); |
| } |
| |
| #if _LIBCPP_STD_VER > 17 |
| |
| template <typename _Tp, size_t _Size, size_t... _Index> |
| _LIBCPP_INLINE_VISIBILITY constexpr array<remove_cv_t<_Tp>, _Size> |
| __to_array_lvalue_impl(_Tp (&__arr)[_Size], index_sequence<_Index...>) { |
| return {{__arr[_Index]...}}; |
| } |
| |
| template <typename _Tp, size_t _Size, size_t... _Index> |
| _LIBCPP_INLINE_VISIBILITY constexpr array<remove_cv_t<_Tp>, _Size> |
| __to_array_rvalue_impl(_Tp(&&__arr)[_Size], index_sequence<_Index...>) { |
| return {{_VSTD::move(__arr[_Index])...}}; |
| } |
| |
| template <typename _Tp, size_t _Size> |
| _LIBCPP_INLINE_VISIBILITY constexpr array<remove_cv_t<_Tp>, _Size> |
| to_array(_Tp (&__arr)[_Size]) noexcept(is_nothrow_constructible_v<_Tp, _Tp&>) { |
| static_assert( |
| !is_array_v<_Tp>, |
| "[array.creation]/1: to_array does not accept multidimensional arrays."); |
| static_assert( |
| is_constructible_v<_Tp, _Tp&>, |
| "[array.creation]/1: to_array requires copy constructible elements."); |
| return _VSTD::__to_array_lvalue_impl(__arr, make_index_sequence<_Size>()); |
| } |
| |
| template <typename _Tp, size_t _Size> |
| _LIBCPP_INLINE_VISIBILITY constexpr array<remove_cv_t<_Tp>, _Size> |
| to_array(_Tp(&&__arr)[_Size]) noexcept(is_nothrow_move_constructible_v<_Tp>) { |
| static_assert( |
| !is_array_v<_Tp>, |
| "[array.creation]/4: to_array does not accept multidimensional arrays."); |
| static_assert( |
| is_move_constructible_v<_Tp>, |
| "[array.creation]/4: to_array requires move constructible elements."); |
| return _VSTD::__to_array_rvalue_impl(_VSTD::move(__arr), |
| make_index_sequence<_Size>()); |
| } |
| |
| #endif // _LIBCPP_STD_VER > 17 |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_ARRAY |
