#ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED#define BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED// MS compatible compilers support #pragma once#if defined(_MSC_VER) && (_MSC_VER >= 1020)# pragma once#endif//// boost/detail/lwm_nop.hpp//// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.//// Distributed under the Boost Software License, Version 1.0. (See// accompanying file LICENSE_1_0.txt or copy at// http://www.boost.org/LICENSE_1_0.txt)//namespaceboost{namespacedetail{classlightweight_mutex{public:typedeflightweight_mutexscoped_lock;};}// namespace detail}// namespace boost#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED