1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP_EXPERIMENTAL_UTILITY
11#define _LIBCPP_EXPERIMENTAL_UTILITY
12
13/*
14 experimental/utility synopsis
15
16// C++1y
17
18#include <utility>
19
20namespace std {
21namespace experimental {
22inline namespace fundamentals_v1 {
23
24 3.1.2, erased-type placeholder
25 struct erased_type { };
26
27} // namespace fundamentals_v1
28} // namespace experimental
29} // namespace std
30
31 */
32
33#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
34# include <__cxx03/experimental/utility>
35#else
36# include <__config>
37# include <utility>
38
39# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
40# pragma GCC system_header
41# endif
42
43_LIBCPP_BEGIN_NAMESPACE_LFTS
44
45struct erased_type {};
46
47_LIBCPP_END_NAMESPACE_LFTS
48
49# if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
50# include <cstddef>
51# endif
52#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
53
54#endif /* _LIBCPP_EXPERIMENTAL_UTILITY */