//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//==============================================================================
// NOTICE: This file has been modified by Green Hills Software, Inc.  Such
// modifications are subject to copyright by Green Hills Software, Inc.  See the
// "Green Hills Software Modifications" section in the LICENSE.txt included with
// this distribution for more information.
//==============================================================================

#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

#if defined(__ghs__)
  #pragma ghs start_cxx_lib_header
  #pragma ghs startdata
  #if defined(__ghs_max_pack_value)
    #pragma pack (push, __ghs_max_pack_value)
  #endif
#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

#if defined(__ghs__)
  #if defined(__ghs_max_pack_value)
    #pragma pack(pop)
  #endif
  #pragma ghs enddata
  #pragma ghs end_cxx_lib_header
#endif

#endif // _LIBCPP___TUPLE_TUPLE_LIKE_H