| #ifndef BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP |
| #define BOOST_SERIALIZATION_ASSUME_ABSTRACT_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 |
| // assume_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, we don't have to do anything |
| #define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T) |
| |
| // but forward to the "official" is_abstract |
| namespace boost { |
| namespace serialization { |
| template<class T> |
| struct is_abstract : boost::is_abstract< T > {} ; |
| } // namespace serialization |
| } // namespace boost |
| |
| #else |
| // we have to "make" one |
| |
| 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< T > : boost::true_type {}; \ |
| template<> \ |
| struct is_abstract< const T > : boost::true_type {}; \ |
| }} \ |
| /**/ |
| |
| #endif // BOOST_NO_IS_ABSTRACT |
| |
| #endif //BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP |