tuple.h 1.6 KB

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  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. #ifndef _LIBCPP___FWD_TUPLE_H
  9. #define _LIBCPP___FWD_TUPLE_H
  10. #include <__config>
  11. #include <cstddef>
  12. #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  13. # pragma GCC system_header
  14. #endif
  15. _LIBCPP_BEGIN_NAMESPACE_STD
  16. template <size_t, class>
  17. struct _LIBCPP_TEMPLATE_VIS tuple_element;
  18. #ifndef _LIBCPP_CXX03_LANG
  19. template <class...>
  20. class _LIBCPP_TEMPLATE_VIS tuple;
  21. template <class>
  22. struct _LIBCPP_TEMPLATE_VIS tuple_size;
  23. template <size_t _Ip, class... _Tp>
  24. _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&
  25. get(tuple<_Tp...>&) _NOEXCEPT;
  26. template <size_t _Ip, class... _Tp>
  27. _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&
  28. get(const tuple<_Tp...>&) _NOEXCEPT;
  29. template <size_t _Ip, class... _Tp>
  30. _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 typename tuple_element<_Ip, tuple<_Tp...> >::type&&
  31. get(tuple<_Tp...>&&) _NOEXCEPT;
  32. template <size_t _Ip, class... _Tp>
  33. _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
  34. get(const tuple<_Tp...>&&) _NOEXCEPT;
  35. #endif // _LIBCPP_CXX03_LANG
  36. _LIBCPP_END_NAMESPACE_STD
  37. #endif // _LIBCPP___FWD_TUPLE_H