1 #ifndef BOOST_SERIALIZATION_TRACKING_ENUM_HPP

     2 #define BOOST_SERIALIZATION_TRACKING_ENUM_HPP

     3 

     4 // MS compatible compilers support #pragma once

     5 #if defined(_MSC_VER) && (_MSC_VER >= 1020)

     6 # pragma once

     7 #endif

     8 

     9 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8

    10 // tracking_enum.hpp:

    11 

    12 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 

    13 // Use, modification and distribution is subject to the Boost Software

    14 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at

    15 // http://www.boost.org/LICENSE_1_0.txt)

    16 

    17 //  See http://www.boost.org for updates, documentation, and revision history.

    18 

    19 namespace boost {

    20 namespace serialization {

    21 

    22 // addresses of serialized objects may be tracked to avoid saving/loading

    23 // redundant copies.  This header defines a class trait that can be used

    24 // to specify when objects should be tracked

    25 

    26 // names for each tracking level

    27 enum tracking_type

    28 {

    29     // never track this type

    30     track_never = 0,

    31     // track objects of this type if the object is serialized through a 

    32     // pointer.

    33     track_selectivly = 1,

    34     // always track this type

    35     track_always = 2

    36 };

    37 

    38 } // namespace serialization

    39 } // namespace boost

    40 

    41 #endif // BOOST_SERIALIZATION_TRACKING_ENUM_HPP