61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
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#ifndef BOOST_SERIALIZATION_WRAPPER_HPP
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#define BOOST_SERIALIZATION_WRAPPER_HPP
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// (C) Copyright 2005-2006 Matthias Troyer
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/serialization/traits.hpp>
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#include <boost/type_traits/is_base_and_derived.hpp>
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#include <boost/mpl/eval_if.hpp>
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#include <boost/mpl/bool_fwd.hpp>
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namespace boost { namespace serialization {
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/// the base class for serialization wrappers
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///
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/// wrappers need to be treated differently at various places in the serialization library,
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/// e.g. saving of non-const wrappers has to be possible. Since partial specialization
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// is not supported by all compilers, we derive all wrappers from wrapper_traits.
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template<
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class T,
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int Level = object_serializable,
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int Tracking = track_never,
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unsigned int Version = 0,
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class ETII = extended_type_info_impl< T >
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>
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struct wrapper_traits :
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public traits<T,Level,Tracking,Version,ETII,mpl::true_>
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{};
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template<class T>
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struct is_wrapper_impl :
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boost::mpl::eval_if<
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boost::is_base_and_derived<basic_traits,T>,
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boost::mpl::true_,
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boost::mpl::false_
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>::type
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{};
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template<class T>
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struct is_wrapper {
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typedef typename is_wrapper_impl<const T>::type type;
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};
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} // serialization
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} // boost
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// A macro to define that a class is a wrapper
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#define BOOST_CLASS_IS_WRAPPER(T) \
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namespace boost { \
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namespace serialization { \
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template<> \
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struct is_wrapper_impl<const T> : boost::mpl::true_ {}; \
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} \
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} \
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/**/
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#endif //BOOST_SERIALIZATION_WRAPPER_HPP
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