Upgrade to boost v1.59.0

boost/memory_order.hpp

@@ -1,57 +0,0 @@
-#ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED
-#define BOOST_MEMORY_ORDER_HPP_INCLUDED
-
-// MS compatible compilers support #pragma once
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
-#endif
-
-//  boost/memory_order.hpp
-//
-//  Defines enum boost::memory_order per the C++0x working draft
-//
-//  Copyright (c) 2008, 2009 Peter Dimov
-//
-//  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)
-
-
-namespace boost
-{
-
-//
-// Enum values are chosen so that code that needs to insert
-// a trailing fence for acquire semantics can use a single
-// test such as:
-//
-// if( mo & memory_order_acquire ) { ...fence... }
-//
-// For leading fences one can use:
-//
-// if( mo & memory_order_release ) { ...fence... }
-//
-// Architectures such as Alpha that need a fence on consume
-// can use:
-//
-// if( mo & ( memory_order_acquire | memory_order_consume ) ) { ...fence... }
-//
-// The values are also in the order of increasing "strength"
-// of the fences so that success/failure orders can be checked
-// efficiently in compare_exchange methods.
-//
-
-enum memory_order
-{
-    memory_order_relaxed = 0,
-    memory_order_consume = 1,
-    memory_order_acquire = 2,
-    memory_order_release = 4,
-    memory_order_acq_rel = 6, // acquire | release
-    memory_order_seq_cst = 14 // acq_rel | 8
-};
-
-} // namespace boost
-
-#endif // #ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED