///////////////////////////////////////////////////////////////////////////////// action.hpp////  Copyright 2008 Eric Niebler. 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)#ifndef BOOST_XPRESSIVE_DETAIL_CORE_ACTION_HPP_EAN_10_04_2005#define BOOST_XPRESSIVE_DETAIL_CORE_ACTION_HPP_EAN_10_04_2005// MS compatible compilers support #pragma once#if defined(_MSC_VER) && (_MSC_VER >= 1020)# pragma once#endif#include <boost/xpressive/detail/detail_fwd.hpp>#include <boost/xpressive/match_results.hpp> // for type_info_lessnamespace boost { namespace xpressive { namespace detail{    ///////////////////////////////////////////////////////////////////////////////    // actionable    //    struct actionable    {        virtual ~actionable() {}        virtual void execute(action_args_type *) const {}        actionable()          : next(0)        {}        actionable const *next;    };}}} // namespace boost::xpressive::detail#endif