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1 /*
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2 * Distributed under the Boost Software License, Version 1.0.
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3 * (See accompanying file LICENSE_1_0.txt or copy at
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4 * http://www.boost.org/LICENSE_1_0.txt)
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5 *
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6 * Copyright (c) 2009 Helge Bahmann
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7 * Copyright (c) 2013 Tim Blechmann
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8 * Copyright (c) 2012 - 2014 Andrey Semashev
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9 */
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10 /*!
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11 * \file atomic/detail/caps_msvc_x86.hpp
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12 *
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13 * This header defines feature capabilities macros
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14 */
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15
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16 #ifndef BOOST_ATOMIC_DETAIL_CAPS_MSVC_X86_HPP_INCLUDED_
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17 #define BOOST_ATOMIC_DETAIL_CAPS_MSVC_X86_HPP_INCLUDED_
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18
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19 #include <boost/atomic/detail/config.hpp>
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20
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21 #ifdef BOOST_HAS_PRAGMA_ONCE
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22 #pragma once
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23 #endif
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24
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25 #if defined(_M_IX86) && _M_IX86 >= 500
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26 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B 1
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27 #endif
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28
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29 #if _MSC_VER >= 1500 && defined(_M_AMD64) && !defined(BOOST_ATOMIC_NO_CMPXCHG16B)
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30 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B 1
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31 #endif
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32
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33 #define BOOST_ATOMIC_INT8_LOCK_FREE 2
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34 #define BOOST_ATOMIC_INT16_LOCK_FREE 2
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35 #define BOOST_ATOMIC_INT32_LOCK_FREE 2
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36
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37 #if defined(_M_AMD64) || defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B)
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38 #define BOOST_ATOMIC_INT64_LOCK_FREE 2
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39 #endif
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40
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41 #if defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B) && (defined(BOOST_HAS_INT128) || !defined(BOOST_NO_ALIGNMENT))
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42 #define BOOST_ATOMIC_INT128_LOCK_FREE 2
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43 #endif
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44
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45 #define BOOST_ATOMIC_POINTER_LOCK_FREE 2
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46
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47 #define BOOST_ATOMIC_THREAD_FENCE 2
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48 #define BOOST_ATOMIC_SIGNAL_FENCE 2
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49
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50 #endif // BOOST_ATOMIC_DETAIL_CAPS_MSVC_X86_HPP_INCLUDED_
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