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- ///////////////////////////////////////////////////////////////////////////////
- // Copyright 2017 John Maddock
- // 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)
- #ifndef BOOST_MATH_ATOMIC_DETAIL_HPP
- #define BOOST_MATH_ATOMIC_DETAIL_HPP
- #include <boost/config.hpp>
- #ifdef BOOST_HAS_THREADS
- #ifndef BOOST_NO_CXX11_HDR_ATOMIC
- # include <atomic>
- # define BOOST_MATH_ATOMIC_NS std
- namespace boost {
- namespace math {
- namespace detail {
- #if ATOMIC_INT_LOCK_FREE == 2
- typedef std::atomic<int> atomic_counter_type;
- typedef std::atomic<unsigned> atomic_unsigned_type;
- typedef int atomic_integer_type;
- typedef unsigned atomic_unsigned_integer_type;
- #elif ATOMIC_SHORT_LOCK_FREE == 2
- typedef std::atomic<short> atomic_counter_type;
- typedef std::atomic<unsigned short> atomic_unsigned_type;
- typedef short atomic_integer_type;
- typedef unsigned short atomic_unsigned_type;
- #elif ATOMIC_LONG_LOCK_FREE == 2
- typedef std::atomic<long> atomic_unsigned_integer_type;
- typedef std::atomic<unsigned long> atomic_unsigned_type;
- typedef unsigned long atomic_unsigned_type;
- typedef long atomic_integer_type;
- #elif ATOMIC_LLONG_LOCK_FREE == 2
- typedef std::atomic<long long> atomic_unsigned_integer_type;
- typedef std::atomic<unsigned long long> atomic_unsigned_type;
- typedef long long atomic_integer_type;
- typedef unsigned long long atomic_unsigned_integer_type;
- #else
- # define BOOST_MATH_NO_ATOMIC_INT
- #endif
- }
- }}
- #else // BOOST_NO_CXX11_HDR_ATOMIC
- //
- // We need Boost.Atomic, but on any platform that supports auto-linking we do
- // not need to link against a separate library:
- //
- #define BOOST_ATOMIC_NO_LIB
- #include <boost/atomic.hpp>
- # define BOOST_MATH_ATOMIC_NS boost
- namespace boost{ namespace math{ namespace detail{
- //
- // We need a type to use as an atomic counter:
- //
- #if BOOST_ATOMIC_INT_LOCK_FREE == 2
- typedef boost::atomic<int> atomic_counter_type;
- typedef boost::atomic<unsigned> atomic_unsigned_type;
- typedef int atomic_integer_type;
- typedef unsigned atomic_unsigned_integer_type;
- #elif BOOST_ATOMIC_SHORT_LOCK_FREE == 2
- typedef boost::atomic<short> atomic_counter_type;
- typedef boost::atomic<unsigned short> atomic_unsigned_type;
- typedef short atomic_integer_type;
- typedef unsigned short atomic_unsigned_integer_type;
- #elif BOOST_ATOMIC_LONG_LOCK_FREE == 2
- typedef boost::atomic<long> atomic_counter_type;
- typedef boost::atomic<unsigned long> atomic_unsigned_type;
- typedef long atomic_integer_type;
- typedef unsigned long atomic_unsigned_integer_type;
- #elif BOOST_ATOMIC_LLONG_LOCK_FREE == 2
- typedef boost::atomic<long long> atomic_counter_type;
- typedef boost::atomic<unsigned long long> atomic_unsigned_type;
- typedef long long atomic_integer_type;
- typedef unsigned long long atomic_unsigned_integer_type;
- #else
- # define BOOST_MATH_NO_ATOMIC_INT
- #endif
- }}} // namespaces
- #endif // BOOST_NO_CXX11_HDR_ATOMIC
- #else // BOOST_HAS_THREADS
- # define BOOST_MATH_NO_ATOMIC_INT
- #endif // BOOST_HAS_THREADS
- #endif // BOOST_MATH_ATOMIC_DETAIL_HPP
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