math/tools/atomic.hpp

0001 ///////////////////////////////////////////////////////////////////////////////
0002 //  Copyright 2017 John Maddock
0003 //  Distributed under the Boost
0004 //  Software License, Version 1.0. (See accompanying file
0005 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006
0007 #ifndef BOOST_MATH_ATOMIC_DETAIL_HPP
0008 #define BOOST_MATH_ATOMIC_DETAIL_HPP
0009
0010 #include <boost/math/tools/config.hpp>
0011 #include <boost/math/tools/cxx03_warn.hpp>
0012
0013 #ifdef BOOST_HAS_THREADS
0014 #include <atomic>
0015
0016 namespace boost {
0017    namespace math {
0018       namespace detail {
0019 #if (ATOMIC_INT_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
0020          typedef std::atomic<int> atomic_counter_type;
0021          typedef std::atomic<unsigned> atomic_unsigned_type;
0022          typedef int atomic_integer_type;
0023          typedef unsigned atomic_unsigned_integer_type;
0024 #elif (ATOMIC_SHORT_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
0025          typedef std::atomic<short> atomic_counter_type;
0026          typedef std::atomic<unsigned short> atomic_unsigned_type;
0027          typedef short atomic_integer_type;
0028          typedef unsigned short atomic_unsigned_type;
0029 #elif (ATOMIC_LONG_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
0030          typedef std::atomic<long> atomic_unsigned_integer_type;
0031          typedef std::atomic<unsigned long> atomic_unsigned_type;
0032          typedef unsigned long atomic_unsigned_type;
0033          typedef long atomic_integer_type;
0034 #elif (ATOMIC_LLONG_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
0035          typedef std::atomic<long long> atomic_unsigned_integer_type;
0036          typedef std::atomic<unsigned long long> atomic_unsigned_type;
0037          typedef long long atomic_integer_type;
0038          typedef unsigned long long atomic_unsigned_integer_type;
0039 #elif !defined(BOOST_MATH_NO_ATOMIC_INT)
0040 #  define BOOST_MATH_NO_ATOMIC_INT
0041 #endif
0042       } // Namespace detail
0043    } // Namespace math
0044 } // Namespace boost
0045
0046 #else
0047 #  define BOOST_MATH_NO_ATOMIC_INT
0048 #endif // BOOST_HAS_THREADS
0049
0050 #endif // BOOST_MATH_ATOMIC_DETAIL_HPP