整理

include/boost/smart_ptr/detail/atomic_count.hpp

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+#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+//  boost/detail/atomic_count.hpp - thread/SMP safe reference counter
+//
+//  Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
+//  Copyright (c) 2013 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
+//
+//  typedef <implementation-defined> boost::detail::atomic_count;
+//
+//  atomic_count a(n);
+//
+//    (n is convertible to long)
+//
+//    Effects: Constructs an atomic_count with an initial value of n
+//
+//  a;
+//
+//    Returns: (long) the current value of a
+//    Memory Ordering: acquire
+//
+//  ++a;
+//
+//    Effects: Atomically increments the value of a
+//    Returns: (long) the new value of a
+//    Memory Ordering: acquire/release
+//
+//  --a;
+//
+//    Effects: Atomically decrements the value of a
+//    Returns: (long) the new value of a
+//    Memory Ordering: acquire/release
+//
+
+#include <boost/smart_ptr/detail/deprecated_macros.hpp>
+
+#if defined( BOOST_AC_DISABLE_THREADS )
+# include <boost/smart_ptr/detail/atomic_count_nt.hpp>
+
+#elif defined( BOOST_AC_USE_STD_ATOMIC )
+# include <boost/smart_ptr/detail/atomic_count_std_atomic.hpp>
+
+#elif defined( BOOST_SP_DISABLE_THREADS )
+# include <boost/smart_ptr/detail/atomic_count_nt.hpp>
+
+#else
+# include <boost/smart_ptr/detail/atomic_count_std_atomic.hpp>
+
+#endif
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED