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- #ifndef LOG_ARCHIVE_HPP
- #define LOG_ARCHIVE_HPP
- // MS compatible compilers support #pragma once
- #if defined(_MSC_VER)
- # pragma once
- #endif
- /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
- // log_archive.hpp
- // (C) Copyright 2010 Robert Ramey - http://www.rrsd.com .
- // Use, modification and distribution is subject to 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)
- // See http://www.boost.org for updates, documentation, and revision history.
- #include <boost/archive/xml_oarchive.hpp>
- namespace boost {
- namespace archive {
- namespace detail {
- template<class Archive> class interface_oarchive;
- } // namespace detail
- } // namespace archive
- } // boost
- /////////////////////////////////////////////////////////////////////////
- // log data to an output stream. This illustrates a simpler implemenation
- // of text output which is useful for getting a formatted display of
- // any serializable class. Intended to be useful as a debugging aid.
- class log_archive :
- /* protected ? */
- public boost::archive::xml_oarchive_impl<log_archive>
- {
- typedef boost::archive::xml_oarchive_impl<log_archive> base;
- // give serialization implementation access to this clas
- friend class boost::archive::detail::interface_oarchive<log_archive>;
- friend class boost::archive::basic_xml_oarchive<log_archive>;
- friend class boost::archive::save_access;
- /////////////////////////////////////////////////////////////////////
- // Override functions defined in basic_xml_oarchive
- // Anything not an attribute and not a name-value pair is an
- // error and should be trapped here.
- template<class T>
- void save_override(T & t){
- // make it a name-value pair and pass it on.
- // this permits this to be used even with data types which
- // are not wrapped with the name
- base::save_override(boost::serialization::make_nvp(NULL, t));
- }
- template<class T>
- void save_override(const boost::serialization::nvp< T > & t){
- // this is here to remove the "const" requirement. Since
- // this class is to be used only for output, it's not required.
- base::save_override(t);
- }
- // specific overrides for attributes - not name value pairs so we
- // want to trap them before the above "fall through"
- // since we don't want to see these in the output - make them no-ops.
- void save_override(const boost::archive::object_id_type & t){}
- void save_override(const boost::archive::object_reference_type & t){}
- void save_override(const boost::archive::version_type & t){}
- void save_override(const boost::archive::class_id_type & t){}
- void save_override(const boost::archive::class_id_optional_type & t){}
- void save_override(const boost::archive::class_id_reference_type & t){}
- void save_override(const boost::archive::class_name_type & t){}
- void save_override(const boost::archive::tracking_type & t){}
- public:
- log_archive(std::ostream & os, unsigned int flags = 0) :
- boost::archive::xml_oarchive_impl<log_archive>(
- os,
- flags | boost::archive::no_header
- )
- {}
- };
- #endif // LOG_ARCHIVE_HPP
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