Boost C++ Libraries

boost/archive/detail/common_oarchive.hpp

#ifndef BOOST_ARCHIVE_DETAIL_COMMON_OARCHIVE_HPP
#define BOOST_ARCHIVE_DETAIL_COMMON_OARCHIVE_HPP

// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif

/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// common_oarchive.hpp

// (C) Copyright 2002 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/detail/basic_oarchive.hpp>
#include <boost/archive/detail/interface_oarchive.hpp>

namespace boost {
namespace archive {
namespace detail {

// note: referred to as Curiously Recurring Template Patter (CRTP)
template<class Archive>
class common_oarchive : 
    public basic_oarchive,
    public interface_oarchive<Archive>
{
private:
    virtual void vsave(const version_type t){
        * this->This() << t;
    }
    virtual void vsave(const object_id_type t){
        * this->This() << t;
    }
    virtual void vsave(const object_reference_type t){
        * this->This() << t;
    }
    virtual void vsave(const class_id_type t){
        * this->This() << t;
    }
    virtual void vsave(const class_id_reference_type t){
        * this->This() << t;
    }
    virtual void vsave(const class_id_optional_type t){
        * this->This() << t;
    }
    virtual void vsave(const class_name_type & t){
        * this->This() << t;
    }
    virtual void vsave(const tracking_type t){
        * this->This() << t;
    }
protected:
    void save_start(const char *name){}
    void save_end(const char *name){}
    void init(){
        // write signature in an archive version independent manner
        const std::string file_signature(ARCHIVE_SIGNATURE);
        * this->This() << file_signature;
        // write library version
        * this->This() << ARCHIVE_VERSION;
    }
    common_oarchive() : 
        basic_oarchive(),
        interface_oarchive<Archive>()
    {}
};

} // namespace detail
} // namespace archive
} // namespace boost

#endif // BOOST_ARCHIVE_DETAIL_COMMON_OARCHIVE_HPP