Files
llvm/libcxx/include/__tuple/tuple_like_ext.h
Nikolas Klauser 74b9484fd6 [libc++] Simplify <tuple> further (#156351)
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.
2025-09-02 08:42:39 +02:00

42 lines
1.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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_EXT_H
#define _LIBCPP___TUPLE_TUPLE_LIKE_EXT_H
#include <__config>
#include <__cstddef/size_t.h>
#include <__fwd/array.h>
#include <__fwd/pair.h>
#include <__fwd/tuple.h>
#include <__type_traits/integral_constant.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp>
struct __tuple_like_ext : false_type {};
#ifndef _LIBCPP_CXX03_LANG
template <class... _Tp>
struct __tuple_like_ext<tuple<_Tp...> > : true_type {};
#endif
template <class _T1, class _T2>
struct __tuple_like_ext<pair<_T1, _T2> > : true_type {};
template <class _Tp, size_t _Size>
struct __tuple_like_ext<array<_Tp, _Size> > : true_type {};
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___TUPLE_TUPLE_LIKE_EXT_H