Chris@16: #ifndef BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP
Chris@16: #define BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@16: // assume_abstract_class.hpp:
Chris@16: 
Chris@16: // (C) Copyright 2008 Robert Ramey
Chris@16: // Use, modification and distribution is subject to the Boost Software
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org for updates, documentation, and revision history.
Chris@16: 
Chris@16: // this is useful for compilers which don't support the boost::is_abstract
Chris@16: 
Chris@16: #include <boost/type_traits/is_abstract.hpp>
Chris@16: 
Chris@16: #ifndef BOOST_NO_IS_ABSTRACT
Chris@16: 
Chris@16: // if there is an intrinsic is_abstract defined, we don't have to do anything
Chris@16: #define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T)
Chris@16: 
Chris@16: // but forward to the "official" is_abstract
Chris@16: namespace boost {
Chris@16: namespace serialization {
Chris@16:     template<class T>
Chris@16:     struct is_abstract : boost::is_abstract< T > {} ;
Chris@16: } // namespace serialization
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #else
Chris@16: // we have to "make" one
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace serialization {
Chris@16:     template<class T>
Chris@16:     struct is_abstract : boost::false_type {};
Chris@16: } // namespace serialization
Chris@16: } // namespace boost
Chris@16: 
Chris@16: // define a macro to make explicit designation of this more transparent
Chris@16: #define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T)        \
Chris@16: namespace boost {                                     \
Chris@16: namespace serialization {                             \
Chris@16: template<>                                            \
Chris@16: struct is_abstract< T > : boost::true_type {};        \
Chris@16: template<>                                            \
Chris@16: struct is_abstract< const T > : boost::true_type {};  \
Chris@16: }}                                                    \
Chris@16: /**/
Chris@16: 
Chris@16: #endif // BOOST_NO_IS_ABSTRACT
Chris@16: 
Chris@16: #endif //BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP