| Stephen Hines | c6ca60f | 2023-05-09 02:19:22 -0700 | [diff] [blame^] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef _LIBCPP___FWD_GET_H |
| 10 | #define _LIBCPP___FWD_GET_H |
| 11 | |
| 12 | #include <__concepts/copyable.h> |
| 13 | #include <__config> |
| 14 | #include <__fwd/array.h> |
| 15 | #include <__fwd/pair.h> |
| 16 | #include <__fwd/subrange.h> |
| 17 | #include <__fwd/tuple.h> |
| 18 | #include <__tuple_dir/tuple_element.h> |
| 19 | #include <cstddef> |
| 20 | |
| 21 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 22 | # pragma GCC system_header |
| 23 | #endif |
| 24 | |
| 25 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 26 | |
| 27 | #ifndef _LIBCPP_CXX03_LANG |
| 28 | |
| 29 | template <size_t _Ip, class ..._Tp> |
| 30 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 31 | typename tuple_element<_Ip, tuple<_Tp...> >::type& |
| 32 | get(tuple<_Tp...>&) _NOEXCEPT; |
| 33 | |
| 34 | template <size_t _Ip, class ..._Tp> |
| 35 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 36 | const typename tuple_element<_Ip, tuple<_Tp...> >::type& |
| 37 | get(const tuple<_Tp...>&) _NOEXCEPT; |
| 38 | |
| 39 | template <size_t _Ip, class ..._Tp> |
| 40 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 41 | typename tuple_element<_Ip, tuple<_Tp...> >::type&& |
| 42 | get(tuple<_Tp...>&&) _NOEXCEPT; |
| 43 | |
| 44 | template <size_t _Ip, class ..._Tp> |
| 45 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 46 | const typename tuple_element<_Ip, tuple<_Tp...> >::type&& |
| 47 | get(const tuple<_Tp...>&&) _NOEXCEPT; |
| 48 | |
| 49 | #endif //_LIBCPP_CXX03_LANG |
| 50 | |
| 51 | template <size_t _Ip, class _T1, class _T2> |
| 52 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 53 | typename tuple_element<_Ip, pair<_T1, _T2> >::type& |
| 54 | get(pair<_T1, _T2>&) _NOEXCEPT; |
| 55 | |
| 56 | template <size_t _Ip, class _T1, class _T2> |
| 57 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 58 | const typename tuple_element<_Ip, pair<_T1, _T2> >::type& |
| 59 | get(const pair<_T1, _T2>&) _NOEXCEPT; |
| 60 | |
| 61 | #ifndef _LIBCPP_CXX03_LANG |
| 62 | template <size_t _Ip, class _T1, class _T2> |
| 63 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 64 | typename tuple_element<_Ip, pair<_T1, _T2> >::type&& |
| 65 | get(pair<_T1, _T2>&&) _NOEXCEPT; |
| 66 | |
| 67 | template <size_t _Ip, class _T1, class _T2> |
| 68 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 69 | const typename tuple_element<_Ip, pair<_T1, _T2> >::type&& |
| 70 | get(const pair<_T1, _T2>&&) _NOEXCEPT; |
| 71 | #endif |
| 72 | |
| 73 | template <size_t _Ip, class _Tp, size_t _Size> |
| 74 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 75 | _Tp& |
| 76 | get(array<_Tp, _Size>&) _NOEXCEPT; |
| 77 | |
| 78 | template <size_t _Ip, class _Tp, size_t _Size> |
| 79 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 80 | const _Tp& |
| 81 | get(const array<_Tp, _Size>&) _NOEXCEPT; |
| 82 | |
| 83 | #ifndef _LIBCPP_CXX03_LANG |
| 84 | template <size_t _Ip, class _Tp, size_t _Size> |
| 85 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 86 | _Tp&& |
| 87 | get(array<_Tp, _Size>&&) _NOEXCEPT; |
| 88 | |
| 89 | template <size_t _Ip, class _Tp, size_t _Size> |
| 90 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 |
| 91 | const _Tp&& |
| 92 | get(const array<_Tp, _Size>&&) _NOEXCEPT; |
| 93 | #endif |
| 94 | |
| 95 | #if _LIBCPP_STD_VER >= 20 |
| 96 | |
| 97 | namespace ranges { |
| 98 | |
| 99 | template <size_t _Index, class _Iter, class _Sent, subrange_kind _Kind> |
| 100 | requires((_Index == 0 && copyable<_Iter>) || _Index == 1) |
| 101 | _LIBCPP_HIDE_FROM_ABI constexpr auto get(const subrange<_Iter, _Sent, _Kind>& __subrange); |
| 102 | |
| 103 | template <size_t _Index, class _Iter, class _Sent, subrange_kind _Kind> |
| 104 | requires(_Index < 2) |
| 105 | _LIBCPP_HIDE_FROM_ABI constexpr auto get(subrange<_Iter, _Sent, _Kind>&& __subrange); |
| 106 | |
| 107 | } // namespace ranges |
| 108 | |
| 109 | using ranges::get; |
| 110 | |
| 111 | #endif // _LIBCPP_STD_VER >= 20 |
| 112 | |
| 113 | _LIBCPP_END_NAMESPACE_STD |
| 114 | |
| 115 | #endif // _LIBCPP___FWD_GET_H |