boost/memory_order.hpp

   1 #ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED
   2 #define BOOST_MEMORY_ORDER_HPP_INCLUDED
   3
   4 // MS compatible compilers support #pragma once
   5
   6 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
   7 # pragma once
   8 #endif
   9
  10 //  boost/memory_order.hpp
  11 //
  12 //  Defines enum boost::memory_order per the C++0x working draft
  13 //
  14 //  Copyright (c) 2008 Peter Dimov
  15 //
  16 //  Distributed under the Boost Software License, Version 1.0.
  17 //  See accompanying file LICENSE_1_0.txt or copy at
  18 //  http://www.boost.org/LICENSE_1_0.txt)
  19
  20
  21 namespace boost
  22 {
  23
  24 enum memory_order
  25 {
  26     memory_order_relaxed = 0,
  27     memory_order_acquire = 1,
  28     memory_order_release = 2,
  29     memory_order_acq_rel = 3, // acquire | release
  30     memory_order_seq_cst = 7  // acq_rel | 4
  31 };
  32
  33 } // namespace boost
  34
  35 #endif // #ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED