1*4bdff4beSrobert //===----------------------------------------------------------------------===// 2*4bdff4beSrobert // 3*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 5*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*4bdff4beSrobert // 7*4bdff4beSrobert //===----------------------------------------------------------------------===// 8*4bdff4beSrobert 9*4bdff4beSrobert #ifndef _LIBCPP___FWD_GET_H 10*4bdff4beSrobert #define _LIBCPP___FWD_GET_H 11*4bdff4beSrobert 12*4bdff4beSrobert #include <__concepts/copyable.h> 13*4bdff4beSrobert #include <__config> 14*4bdff4beSrobert #include <__fwd/array.h> 15*4bdff4beSrobert #include <__fwd/pair.h> 16*4bdff4beSrobert #include <__fwd/subrange.h> 17*4bdff4beSrobert #include <__fwd/tuple.h> 18*4bdff4beSrobert #include <__tuple_dir/tuple_element.h> 19*4bdff4beSrobert #include <cstddef> 20*4bdff4beSrobert 21*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 22*4bdff4beSrobert # pragma GCC system_header 23*4bdff4beSrobert #endif 24*4bdff4beSrobert 25*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 26*4bdff4beSrobert 27*4bdff4beSrobert #ifndef _LIBCPP_CXX03_LANG 28*4bdff4beSrobert 29*4bdff4beSrobert template <size_t _Ip, class ..._Tp> 30*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 31*4bdff4beSrobert typename tuple_element<_Ip, tuple<_Tp...> >::type& 32*4bdff4beSrobert get(tuple<_Tp...>&) _NOEXCEPT; 33*4bdff4beSrobert 34*4bdff4beSrobert template <size_t _Ip, class ..._Tp> 35*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 36*4bdff4beSrobert const typename tuple_element<_Ip, tuple<_Tp...> >::type& 37*4bdff4beSrobert get(const tuple<_Tp...>&) _NOEXCEPT; 38*4bdff4beSrobert 39*4bdff4beSrobert template <size_t _Ip, class ..._Tp> 40*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 41*4bdff4beSrobert typename tuple_element<_Ip, tuple<_Tp...> >::type&& 42*4bdff4beSrobert get(tuple<_Tp...>&&) _NOEXCEPT; 43*4bdff4beSrobert 44*4bdff4beSrobert template <size_t _Ip, class ..._Tp> 45*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 46*4bdff4beSrobert const typename tuple_element<_Ip, tuple<_Tp...> >::type&& 47*4bdff4beSrobert get(const tuple<_Tp...>&&) _NOEXCEPT; 48*4bdff4beSrobert 49*4bdff4beSrobert #endif //_LIBCPP_CXX03_LANG 50*4bdff4beSrobert 51*4bdff4beSrobert template <size_t _Ip, class _T1, class _T2> 52*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 53*4bdff4beSrobert typename tuple_element<_Ip, pair<_T1, _T2> >::type& 54*4bdff4beSrobert get(pair<_T1, _T2>&) _NOEXCEPT; 55*4bdff4beSrobert 56*4bdff4beSrobert template <size_t _Ip, class _T1, class _T2> 57*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 58*4bdff4beSrobert const typename tuple_element<_Ip, pair<_T1, _T2> >::type& 59*4bdff4beSrobert get(const pair<_T1, _T2>&) _NOEXCEPT; 60*4bdff4beSrobert 61*4bdff4beSrobert #ifndef _LIBCPP_CXX03_LANG 62*4bdff4beSrobert template <size_t _Ip, class _T1, class _T2> 63*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 64*4bdff4beSrobert typename tuple_element<_Ip, pair<_T1, _T2> >::type&& 65*4bdff4beSrobert get(pair<_T1, _T2>&&) _NOEXCEPT; 66*4bdff4beSrobert 67*4bdff4beSrobert template <size_t _Ip, class _T1, class _T2> 68*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 69*4bdff4beSrobert const typename tuple_element<_Ip, pair<_T1, _T2> >::type&& 70*4bdff4beSrobert get(const pair<_T1, _T2>&&) _NOEXCEPT; 71*4bdff4beSrobert #endif 72*4bdff4beSrobert 73*4bdff4beSrobert template <size_t _Ip, class _Tp, size_t _Size> 74*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 75*4bdff4beSrobert _Tp& 76*4bdff4beSrobert get(array<_Tp, _Size>&) _NOEXCEPT; 77*4bdff4beSrobert 78*4bdff4beSrobert template <size_t _Ip, class _Tp, size_t _Size> 79*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 80*4bdff4beSrobert const _Tp& 81*4bdff4beSrobert get(const array<_Tp, _Size>&) _NOEXCEPT; 82*4bdff4beSrobert 83*4bdff4beSrobert #ifndef _LIBCPP_CXX03_LANG 84*4bdff4beSrobert template <size_t _Ip, class _Tp, size_t _Size> 85*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 86*4bdff4beSrobert _Tp&& 87*4bdff4beSrobert get(array<_Tp, _Size>&&) _NOEXCEPT; 88*4bdff4beSrobert 89*4bdff4beSrobert template <size_t _Ip, class _Tp, size_t _Size> 90*4bdff4beSrobert _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX14 91*4bdff4beSrobert const _Tp&& 92*4bdff4beSrobert get(const array<_Tp, _Size>&&) _NOEXCEPT; 93*4bdff4beSrobert #endif 94*4bdff4beSrobert 95*4bdff4beSrobert #if _LIBCPP_STD_VER >= 20 96*4bdff4beSrobert 97*4bdff4beSrobert namespace ranges { 98*4bdff4beSrobert 99*4bdff4beSrobert template <size_t _Index, class _Iter, class _Sent, subrange_kind _Kind> 100*4bdff4beSrobert requires((_Index == 0 && copyable<_Iter>) || _Index == 1) 101*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr auto get(const subrange<_Iter, _Sent, _Kind>& __subrange); 102*4bdff4beSrobert 103*4bdff4beSrobert template <size_t _Index, class _Iter, class _Sent, subrange_kind _Kind> 104*4bdff4beSrobert requires(_Index < 2) 105*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr auto get(subrange<_Iter, _Sent, _Kind>&& __subrange); 106*4bdff4beSrobert 107*4bdff4beSrobert } // namespace ranges 108*4bdff4beSrobert 109*4bdff4beSrobert using ranges::get; 110*4bdff4beSrobert 111*4bdff4beSrobert #endif // _LIBCPP_STD_VER >= 20 112*4bdff4beSrobert 113*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 114*4bdff4beSrobert 115*4bdff4beSrobert #endif // _LIBCPP___FWD_GET_H 116