williamr@2: #ifndef BOOST_SERIALIZATION_TRACKING_ENUM_HPP
williamr@2: #define BOOST_SERIALIZATION_TRACKING_ENUM_HPP
williamr@2: 
williamr@2: // MS compatible compilers support #pragma once
williamr@2: #if defined(_MSC_VER) && (_MSC_VER >= 1020)
williamr@2: # pragma once
williamr@2: #endif
williamr@2: 
williamr@2: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
williamr@2: // tracking_enum.hpp:
williamr@2: 
williamr@2: // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
williamr@2: // Use, modification and distribution is subject to the Boost Software
williamr@2: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: 
williamr@2: //  See http://www.boost.org for updates, documentation, and revision history.
williamr@2: 
williamr@2: namespace boost {
williamr@2: namespace serialization {
williamr@2: 
williamr@2: // addresses of serialized objects may be tracked to avoid saving/loading
williamr@2: // redundant copies.  This header defines a class trait that can be used
williamr@2: // to specify when objects should be tracked
williamr@2: 
williamr@2: // names for each tracking level
williamr@2: enum tracking_type
williamr@2: {
williamr@2:     // never track this type
williamr@2:     track_never = 0,
williamr@2:     // track objects of this type if the object is serialized through a 
williamr@2:     // pointer.
williamr@2:     track_selectivly = 1,
williamr@2:     // always track this type
williamr@2:     track_always = 2
williamr@2: };
williamr@2: 
williamr@2: } // namespace serialization
williamr@2: } // namespace boost
williamr@2: 
williamr@2: #endif // BOOST_SERIALIZATION_TRACKING_ENUM_HPP