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_PAIR_H 10 #define _LIBCPP___FWD_PAIR_H 11 12 #include <__config> 13 #include <__fwd/tuple.h> 14 #include <cstddef> 15 16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17 # pragma GCC system_header 18 #endif 19 20 _LIBCPP_BEGIN_NAMESPACE_STD 21 22 template <class, class> 23 struct _LIBCPP_TEMPLATE_VIS pair; 24 25 template <size_t _Ip, class _T1, class _T2> 26 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, pair<_T1, _T2> >::type& 27 get(pair<_T1, _T2>&) _NOEXCEPT; 28 29 template <size_t _Ip, class _T1, class _T2> 30 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, pair<_T1, _T2> >::type& 31 get(const pair<_T1, _T2>&) _NOEXCEPT; 32 33 #ifndef _LIBCPP_CXX03_LANG 34 template <size_t _Ip, class _T1, class _T2> 35 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, pair<_T1, _T2> >::type&& 36 get(pair<_T1, _T2>&&) _NOEXCEPT; 37 38 template <size_t _Ip, class _T1, class _T2> 39 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, pair<_T1, _T2> >::type&& 40 get(const pair<_T1, _T2>&&) _NOEXCEPT; 41 #endif 42 43 _LIBCPP_END_NAMESPACE_STD 44 45 #endif // _LIBCPP___FWD_PAIR_H 46