//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <future>
#include <future>
#ifndef _LIBCPP_VERSION
#error _LIBCPP_VERSION not defined
#endif
int main()
{
}