add boost on mac

macx64/include/boost/log/utility/functional/bind_assign.hpp

@@ -0,0 +1,55 @@
+/*
+ *          Copyright Andrey Semashev 2007 - 2015.
+ * 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)
+ */
+/*!
+ * \file   bind_assign.hpp
+ * \author Andrey Semashev
+ * \date   30.03.2008
+ *
+ * This header contains a function object that assigns the received value to the bound object.
+ * This is a lightweight alternative to what Boost.Phoenix and Boost.Lambda provides.
+ */
+
+#ifndef BOOST_LOG_UTILITY_FUNCTIONAL_BIND_ASSIGN_HPP_INCLUDED_
+#define BOOST_LOG_UTILITY_FUNCTIONAL_BIND_ASSIGN_HPP_INCLUDED_
+
+#include <boost/log/detail/config.hpp>
+#include <boost/log/utility/functional/bind.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+//! The function object that assigns its second operand to the first one
+struct assign_fun
+{
+    typedef void result_type;
+
+    template< typename LeftT, typename RightT >
+    void operator() (LeftT& assignee, RightT const& val) const
+    {
+        assignee = val;
+    }
+};
+
+template< typename AssigneeT >
+BOOST_FORCEINLINE binder1st< assign_fun, AssigneeT& > bind_assign(AssigneeT& assignee)
+{
+    return binder1st< assign_fun, AssigneeT& >(assign_fun(), assignee);
+}
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_UTILITY_FUNCTIONAL_BIND_ASSIGN_HPP_INCLUDED_