1// -*- C++ -*-
2//===-------------------------- optional ----------------------------------===//
3//
4//                     The LLVM Compiler Infrastructure
5//
6// This file is dual licensed under the MIT and the University of Illinois Open
7// Source Licenses. See LICENSE.TXT for details.
8//
9//===----------------------------------------------------------------------===//
10#ifndef _LIBCPP_EXPERIMENTAL_OPTIONAL
11#define _LIBCPP_EXPERIMENTAL_OPTIONAL
12
13#include <__config>
14
15#ifdef _LIBCPP_WARNING
16_LIBCPP_WARNING("<experimental/optional> has been removed. Use <optional> instead.")
17#else
18# warning "<experimental/optional> has been removed. Use <optional> instead."
19#endif
20
21#endif // _LIBCPP_EXPERIMENTAL_OPTIONAL
22