106c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 206c3fb27SDimitry Andric // 306c3fb27SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 406c3fb27SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 506c3fb27SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 606c3fb27SDimitry Andric // 706c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 806c3fb27SDimitry Andric 906c3fb27SDimitry Andric #ifndef _LIBCPP___TUPLE_TUPLE_LIKE_EXT_H 1006c3fb27SDimitry Andric #define _LIBCPP___TUPLE_TUPLE_LIKE_EXT_H 1106c3fb27SDimitry Andric 1206c3fb27SDimitry Andric #include <__config> 1306c3fb27SDimitry Andric #include <__fwd/array.h> 1406c3fb27SDimitry Andric #include <__fwd/pair.h> 1506c3fb27SDimitry Andric #include <__fwd/tuple.h> 1606c3fb27SDimitry Andric #include <__tuple/tuple_types.h> 1706c3fb27SDimitry Andric #include <__type_traits/integral_constant.h> 1806c3fb27SDimitry Andric #include <cstddef> 1906c3fb27SDimitry Andric 2006c3fb27SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 2106c3fb27SDimitry Andric # pragma GCC system_header 2206c3fb27SDimitry Andric #endif 2306c3fb27SDimitry Andric 2406c3fb27SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 2506c3fb27SDimitry Andric 26*cb14a3feSDimitry Andric template <class _Tp> 27*cb14a3feSDimitry Andric struct __tuple_like_ext : false_type {}; 2806c3fb27SDimitry Andric 29*cb14a3feSDimitry Andric template <class _Tp> 30*cb14a3feSDimitry Andric struct __tuple_like_ext<const _Tp> : public __tuple_like_ext<_Tp> {}; 31*cb14a3feSDimitry Andric template <class _Tp> 32*cb14a3feSDimitry Andric struct __tuple_like_ext<volatile _Tp> : public __tuple_like_ext<_Tp> {}; 33*cb14a3feSDimitry Andric template <class _Tp> 34*cb14a3feSDimitry Andric struct __tuple_like_ext<const volatile _Tp> : public __tuple_like_ext<_Tp> {}; 3506c3fb27SDimitry Andric 3606c3fb27SDimitry Andric #ifndef _LIBCPP_CXX03_LANG 37*cb14a3feSDimitry Andric template <class... _Tp> 38*cb14a3feSDimitry Andric struct __tuple_like_ext<tuple<_Tp...> > : true_type {}; 3906c3fb27SDimitry Andric #endif 4006c3fb27SDimitry Andric 41*cb14a3feSDimitry Andric template <class _T1, class _T2> 42*cb14a3feSDimitry Andric struct __tuple_like_ext<pair<_T1, _T2> > : true_type {}; 4306c3fb27SDimitry Andric 44*cb14a3feSDimitry Andric template <class _Tp, size_t _Size> 45*cb14a3feSDimitry Andric struct __tuple_like_ext<array<_Tp, _Size> > : true_type {}; 4606c3fb27SDimitry Andric 47*cb14a3feSDimitry Andric template <class... _Tp> 48*cb14a3feSDimitry Andric struct __tuple_like_ext<__tuple_types<_Tp...> > : true_type {}; 4906c3fb27SDimitry Andric 5006c3fb27SDimitry Andric _LIBCPP_END_NAMESPACE_STD 5106c3fb27SDimitry Andric 5206c3fb27SDimitry Andric #endif // _LIBCPP___TUPLE_TUPLE_LIKE_EXT_H 53