| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___TUPLE_TUPLE_LIKE_H |
| #define _LIBCPP___TUPLE_TUPLE_LIKE_H |
| |
| #include <__config> |
| #include <__fwd/array.h> |
| #include <__fwd/pair.h> |
| #include <__fwd/tuple.h> |
| #include <__tuple/tuple_types.h> |
| #include <__type_traits/integral_constant.h> |
| #include <cstddef> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <class _Tp> struct __tuple_like : false_type {}; |
| |
| template <class _Tp> struct __tuple_like<const _Tp> : public __tuple_like<_Tp> {}; |
| template <class _Tp> struct __tuple_like<volatile _Tp> : public __tuple_like<_Tp> {}; |
| template <class _Tp> struct __tuple_like<const volatile _Tp> : public __tuple_like<_Tp> {}; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| template <class... _Tp> struct __tuple_like<tuple<_Tp...> > : true_type {}; |
| #endif |
| |
| template <class _T1, class _T2> struct __tuple_like<pair<_T1, _T2> > : true_type {}; |
| |
| template <class _Tp, size_t _Size> struct __tuple_like<array<_Tp, _Size> > : true_type {}; |
| |
| template <class... _Tp> struct __tuple_like<__tuple_types<_Tp...> > : true_type {}; |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___TUPLE_TUPLE_LIKE_H |
