1 files changed, 60 insertions, 0 deletions
diff --git a/boost/log/utility/functional/as_action.hpp b/boost/log/utility/functional/as_action.hpp
new file mode 100644
index 0000000000..a12cee250a
--- /dev/null
+++ b/boost/log/utility/functional/as_action.hpp
@@ -0,0 +1,60 @@
+/*
+ *          Copyright Andrey Semashev 2007 - 2014.
+ * 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   as_action.hpp
+ * \author Andrey Semashev
+ * \date   30.03.2008
+ *
+ * This header contains function object adapter for compatibility with Boost.Spirit actions interface requirements.
+ */
+
+#ifndef BOOST_LOG_UTILITY_FUNCTIONAL_AS_ACTION_HPP_INCLUDED_
+#define BOOST_LOG_UTILITY_FUNCTIONAL_AS_ACTION_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 adapter for Boost.Spirit actions
+template< typename FunT >
+struct as_action_adapter
+{
+    typedef typename FunT::result_type result_type;
+
+    BOOST_DEFAULTED_FUNCTION(as_action_adapter(), {})
+    explicit as_action_adapter(FunT const& fun) : m_fun(fun) {}
+
+    template< typename AttributeT, typename ContextT >
+    result_type operator() (AttributeT const& attr, ContextT const& ctx, bool& pass) const
+    {
+        return m_fun(attr);
+    }
+
+private:
+    FunT m_fun;
+};
+
+template< typename FunT >
+BOOST_FORCEINLINE as_action_adapter< FunT > as_action(FunT const& fun)
+{
+    return as_action_adapter< FunT >(fun);
+}
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_UTILITY_FUNCTIONAL_AS_ACTION_HPP_INCLUDED_