1///////////////////////////////////////////////////////////////////////////////
2// Copyright 2017 John Maddock
3// Distributed under the Boost
4// Software License, Version 1.0. (See accompanying file
5// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6
7#ifndef BOOST_MATH_ATOMIC_DETAIL_HPP
8#define BOOST_MATH_ATOMIC_DETAIL_HPP
9
10#include <boost/math/tools/config.hpp>
11#include <boost/math/tools/cxx03_warn.hpp>
12
13#ifdef BOOST_HAS_THREADS
14#include <atomic>
15
16namespace boost {
17 namespace math {
18 namespace detail {
19#if (ATOMIC_INT_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
20 typedef std::atomic<int> atomic_counter_type;
21 typedef std::atomic<unsigned> atomic_unsigned_type;
22 typedef int atomic_integer_type;
23 typedef unsigned atomic_unsigned_integer_type;
24#elif (ATOMIC_SHORT_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
25 typedef std::atomic<short> atomic_counter_type;
26 typedef std::atomic<unsigned short> atomic_unsigned_type;
27 typedef short atomic_integer_type;
28 typedef unsigned short atomic_unsigned_type;
29#elif (ATOMIC_LONG_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
30 typedef std::atomic<long> atomic_unsigned_integer_type;
31 typedef std::atomic<unsigned long> atomic_unsigned_type;
32 typedef unsigned long atomic_unsigned_type;
33 typedef long atomic_integer_type;
34#elif (ATOMIC_LLONG_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
35 typedef std::atomic<long long> atomic_unsigned_integer_type;
36 typedef std::atomic<unsigned long long> atomic_unsigned_type;
37 typedef long long atomic_integer_type;
38 typedef unsigned long long atomic_unsigned_integer_type;
39#elif !defined(BOOST_MATH_NO_ATOMIC_INT)
40# define BOOST_MATH_NO_ATOMIC_INT
41#endif
42 } // Namespace detail
43 } // Namespace math
44} // Namespace boost
45
46#else
47# define BOOST_MATH_NO_ATOMIC_INT
48#endif // BOOST_HAS_THREADS
49
50#endif // BOOST_MATH_ATOMIC_DETAIL_HPP
51

source code of include/boost/math/tools/atomic.hpp