add boost on mac

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

@@ -0,0 +1,60 @@
+/*
+ *          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   save_result.hpp
+ * \author Andrey Semashev
+ * \date   19.01.2013
+ *
+ * This header contains function object adapter that saves the result of the adopted function to an external variable.
+ */
+
+#ifndef BOOST_LOG_UTILITY_FUNCTIONAL_SAVE_RESULT_HPP_INCLUDED_
+#define BOOST_LOG_UTILITY_FUNCTIONAL_SAVE_RESULT_HPP_INCLUDED_
+
+#include <boost/log/detail/config.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+//! Function object wrapper for saving the adopted function object result
+template< typename FunT, typename AssigneeT >
+struct save_result_wrapper
+{
+    typedef void result_type;
+
+    save_result_wrapper(FunT fun, AssigneeT& assignee) : m_fun(fun), m_assignee(assignee) {}
+
+    template< typename ArgT >
+    result_type operator() (ArgT const& arg) const
+    {
+        m_assignee = m_fun(arg);
+    }
+
+private:
+    FunT m_fun;
+    AssigneeT& m_assignee;
+};
+
+template< typename FunT, typename AssigneeT >
+BOOST_FORCEINLINE save_result_wrapper< FunT, AssigneeT > save_result(FunT const& fun, AssigneeT& assignee)
+{
+    return save_result_wrapper< FunT, AssigneeT >(fun, assignee);
+}
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_UTILITY_FUNCTIONAL_SAVE_RESULT_HPP_INCLUDED_