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#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
//
// boost/detail/spinlock.hpp
//
// Copyright (c) 2008 Peter Dimov
//
// 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)
//
// struct spinlock
// {
// void lock();
// bool try_lock();
// void unlock();
//
// class scoped_lock;
// };
//
// #define BOOST_DETAIL_SPINLOCK_INIT <unspecified>
//
#include <boost/config.hpp>
#include <boost/smart_ptr/detail/sp_has_sync.hpp>
#if defined( BOOST_SP_USE_PTHREADS )
# include <boost/smart_ptr/detail/spinlock_pt.hpp>
#elif defined(__GNUC__) && defined( __arm__ ) && !defined( __thumb__ )
# include <boost/smart_ptr/detail/spinlock_gcc_arm.hpp>
#elif defined( BOOST_SP_HAS_SYNC )
# include <boost/smart_ptr/detail/spinlock_sync.hpp>
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
# include <boost/smart_ptr/detail/spinlock_w32.hpp>
#elif defined(BOOST_HAS_PTHREADS)
# include <boost/smart_ptr/detail/spinlock_pt.hpp>
#elif !defined(BOOST_HAS_THREADS)
# include <boost/smart_ptr/detail/spinlock_nt.hpp>
#else
# error Unrecognized threading platform
#endif
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
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