74b9484fd6
This essentially inlines `__make_tuple_types` and simplifies the support code. This significantly simplifies the implementation, since `__make_tuple_types` has multiple features, but the different places that use it only make use of a subset of the features. Inlining it separates concerns better and leads to less code in total.
67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
//===---------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===---------------------------------------------------------------------===//
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#ifndef _LIBCPP___FWD_TUPLE_H
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#define _LIBCPP___FWD_TUPLE_H
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#include <__config>
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#include <__cstddef/size_t.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <size_t, class>
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struct tuple_element;
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template <size_t _Np, class _Tp>
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using __tuple_element_t _LIBCPP_NODEBUG = typename tuple_element<_Np, _Tp>::type;
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#ifndef _LIBCPP_CXX03_LANG
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template <class...>
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class tuple;
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template <class>
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inline const bool __is_tuple_v = false;
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template <class... _Tp>
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inline const bool __is_tuple_v<tuple<_Tp...>> = true;
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template <size_t _Ip, class... _Tp>
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struct tuple_element<_Ip, tuple<_Tp...> > {
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using type _LIBCPP_NODEBUG = __type_pack_element<_Ip, _Tp...>;
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};
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template <class>
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struct tuple_size;
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template <size_t _Ip, class... _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&
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get(tuple<_Tp...>&) _NOEXCEPT;
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template <size_t _Ip, class... _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&
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get(const tuple<_Tp...>&) _NOEXCEPT;
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template <size_t _Ip, class... _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&&
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get(tuple<_Tp...>&&) _NOEXCEPT;
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template <size_t _Ip, class... _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
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get(const tuple<_Tp...>&&) _NOEXCEPT;
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#endif // _LIBCPP_CXX03_LANG
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___FWD_TUPLE_H
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