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 _LIBCPP_TEMPLATE_VIS 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 */ 55