v1/__fwd/tuple.h

0001 //===---------------------------------------------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===---------------------------------------------------------------------===//
0008
0009 #ifndef _LIBCPP___FWD_TUPLE_H
0010 #define _LIBCPP___FWD_TUPLE_H
0011
0012 #include <__config>
0013 #include <__cstddef/size_t.h>
0014
0015 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0016 #  pragma GCC system_header
0017 #endif
0018
0019 _LIBCPP_BEGIN_NAMESPACE_STD
0020
0021 template <size_t, class>
0022 struct _LIBCPP_TEMPLATE_VIS tuple_element;
0023
0024 #ifndef _LIBCPP_CXX03_LANG
0025
0026 template <class...>
0027 class _LIBCPP_TEMPLATE_VIS tuple;
0028
0029 template <class>
0030 struct _LIBCPP_TEMPLATE_VIS tuple_size;
0031
0032 template <size_t _Ip, class... _Tp>
0033 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&
0034 get(tuple<_Tp...>&) _NOEXCEPT;
0035
0036 template <size_t _Ip, class... _Tp>
0037 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&
0038 get(const tuple<_Tp...>&) _NOEXCEPT;
0039
0040 template <size_t _Ip, class... _Tp>
0041 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&&
0042 get(tuple<_Tp...>&&) _NOEXCEPT;
0043
0044 template <size_t _Ip, class... _Tp>
0045 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
0046 get(const tuple<_Tp...>&&) _NOEXCEPT;
0047
0048 #endif // _LIBCPP_CXX03_LANG
0049
0050 _LIBCPP_END_NAMESPACE_STD
0051
0052 #endif // _LIBCPP___FWD_TUPLE_H