xref: /freebsd/contrib/llvm-project/libcxx/include/__tuple/tuple_indices.h (revision a64729f5077d77e13b9497cb33ecb3c82e606ee8)
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 
9 #ifndef _LIBCPP___TUPLE_MAKE_TUPLE_INDICES_H
10 #define _LIBCPP___TUPLE_MAKE_TUPLE_INDICES_H
11 
12 #include <__config>
13 #include <__utility/integer_sequence.h>
14 #include <cstddef>
15 
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17 #  pragma GCC system_header
18 #endif
19 
20 #ifndef _LIBCPP_CXX03_LANG
21 
22 _LIBCPP_BEGIN_NAMESPACE_STD
23 
24 template <size_t...>
25 struct __tuple_indices {};
26 
27 template <size_t _Ep, size_t _Sp = 0>
28 struct __make_tuple_indices {
29   static_assert(_Sp <= _Ep, "__make_tuple_indices input error");
30   typedef __make_indices_imp<_Ep, _Sp> type;
31 };
32 
33 _LIBCPP_END_NAMESPACE_STD
34 
35 #endif // _LIBCPP_CXX03_LANG
36 
37 #endif // _LIBCPP___TUPLE_MAKE_TUPLE_INDICES_H
38