libcxx/include/__cxx03/__tuple/tuple_element.h

//===----------------------------------------------------------------------===//
//
// 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___CXX03___TUPLE_TUPLE_ELEMENT_H
#define _LIBCPP___CXX03___TUPLE_TUPLE_ELEMENT_H

#include <__cxx03/__config>
#include <__cxx03/__tuple/tuple_indices.h>
#include <__cxx03/__tuple/tuple_types.h>
#include <__cxx03/cstddef>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

template <size_t _Ip, class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element;

template <size_t _Ip, class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, const _Tp> {
  typedef _LIBCPP_NODEBUG const typename tuple_element<_Ip, _Tp>::type type;
};

template <size_t _Ip, class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, volatile _Tp> {
  typedef _LIBCPP_NODEBUG volatile typename tuple_element<_Ip, _Tp>::type type;
};

template <size_t _Ip, class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, const volatile _Tp> {
  typedef _LIBCPP_NODEBUG const volatile typename tuple_element<_Ip, _Tp>::type type;
};

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___CXX03___TUPLE_TUPLE_ELEMENT_H