59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
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// 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); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: LGPL-3.0+
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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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