#ifndef BOOST_SERIALIZATION_IS_ABSTRACT_CLASS_HPP
#define BOOST_SERIALIZATION_IS_ABSTRACT_CLASS_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
// is_abstract_class.hpp:

// (C) Copyright 2008 Robert Ramey
// 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.

// this is useful for compilers which don't support the boost::is_abstract

#include <boost/type_traits/is_abstract.hpp>

#ifndef BOOST_NO_IS_ABSTRACT

// if there is an intrinsic is_abstract defined, 
// or if we have a working is_abstract then forward to it:
#define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T)

namespace boost {
namespace serialization {
    template<class T>
    struct is_abstract : boost::is_abstract<T>{};
} // namespace serialization
} // namespace boost

#else
// we have to "make" one

//#include <boost/mpl/bool.hpp>
namespace boost {
namespace serialization {
    template<class T>
    struct is_abstract : boost::false_type{};
} // namespace serialization
} // namespace boost

// define a macro to make explicit designation of this more transparent
#define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T)        \
namespace boost {                                     \
namespace serialization {                             \
template<>                                            \
struct is_abstract<const T > : boost::true_type {};         \
}}                                                    \
/**/

//#define BOOST_IS_ABSTRACT(T) boost::serialization::is_abstract<T>

#endif // BOOST_IS_ABSTRACT

#endif //BOOST_SERIALIZATION_IS_ABSTRACT_CLASS_HPP