50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
// Copyright (c) 2016 GeometryFactory Sarl (France)
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org)
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Installation/include/CGAL/atomic.h $
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// $Id: atomic.h 52164b1 2019-10-19T15:34:59+02:00 Sébastien Loriot
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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#ifndef CGAL_ATOMIC_H
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#define CGAL_ATOMIC_H
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#include <CGAL/config.h>
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#ifdef CGAL_HAS_THREADS
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# ifdef CGAL_CAN_USE_CXX11_ATOMIC
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# include <atomic>
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# define CGAL_ATOMIC_NS std
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# else // not CGAL_CAN_USE_CXX11_ATOMIC
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# if BOOST_VERSION >= 105300
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# include <boost/atomic.hpp>
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# define CGAL_ATOMIC_NS boost
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# else // BOOST_VERSION < 105300
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# define CGAL_NO_ATOMIC "Boost.Atomic was introduced in Boost-1.53".
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# endif // BOOST_VERSION < 105300
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# endif // not CGAL_CAN_USE_CXX11_ATOMIC
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# ifndef CGAL_NO_ATOMIC
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namespace CGAL {
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namespace cpp11 {
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using CGAL_ATOMIC_NS ::atomic;
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using CGAL_ATOMIC_NS ::memory_order_relaxed;
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using CGAL_ATOMIC_NS ::memory_order_consume;
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using CGAL_ATOMIC_NS ::memory_order_acquire;
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using CGAL_ATOMIC_NS ::memory_order_release;
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using CGAL_ATOMIC_NS ::memory_order_acq_rel;
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using CGAL_ATOMIC_NS ::memory_order_seq_cst;
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using CGAL_ATOMIC_NS ::atomic_thread_fence;
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}
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}
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# endif // CGAL_ATOMIC_NS
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#else
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# define CGAL_NO_ATOMIC "No atomic because CGAL_NO_THREADS is defined."
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#endif // CGAL_HAS_THREADS
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#endif // CGAL_ATOMIC_H
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