63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
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///////////////////////////////////////////////////////////////////////////////
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// Copyright 2017 John Maddock
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// Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_MP_DETAIL_ATOMIC_HPP
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#define BOOST_MP_DETAIL_ATOMIC_HPP
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#include <boost/multiprecision/detail/standalone_config.hpp>
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#ifdef BOOST_HAS_THREADS
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# include <atomic>
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# define BOOST_MATH_ATOMIC_NS std
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namespace boost {
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namespace multiprecision {
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namespace detail {
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#if ATOMIC_INT_LOCK_FREE == 2
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using atomic_counter_type = std::atomic<int>;
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using atomic_unsigned_type = std::atomic<unsigned>;
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using atomic_integer_type = int;
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using atomic_unsigned_integer_type = unsigned;
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#elif ATOMIC_SHORT_LOCK_FREE == 2
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using atomic_counter_type = std::atomic<short>;
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using atomic_unsigned_type = std::atomic<unsigned short>;
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using atomic_integer_type = short;
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using atomic_unsigned_integer_type = unsigned short;
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#elif ATOMIC_LONG_LOCK_FREE == 2
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using atomic_unsigned_integer_type = std::atomic<long>;
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using atomic_unsigned_type = std::atomic<unsigned long>;
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using atomic_unsigned_integer_type = unsigned long;
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using atomic_integer_type = long;
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#elif ATOMIC_LLONG_LOCK_FREE == 2
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using atomic_unsigned_integer_type = std::atomic<long long>;
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using atomic_unsigned_type = std::atomic<unsigned long long>;
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using atomic_integer_type = long long;
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using atomic_unsigned_integer_type = unsigned long long;
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#else
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#define BOOST_MT_NO_ATOMIC_INT
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#endif
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}
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}}
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#else // BOOST_HAS_THREADS
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#define BOOST_MT_NO_ATOMIC_INT
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#endif // BOOST_HAS_THREADS
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namespace boost { namespace multiprecision { namespace detail {
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#ifdef BOOST_MT_NO_ATOMIC_INT
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using precision_type = unsigned;
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#else
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using precision_type = atomic_unsigned_type;
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#endif
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} } }
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#endif // BOOST_MP_DETAIL_ATOMIC_HPP
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