| 1 | #ifndef BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP |
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| 2 | #define BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP |
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| 3 | |
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| 4 | // MS compatible compilers support #pragma once |
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| 5 | #if defined(_MSC_VER) |
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| 6 | # pragma once |
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| 7 | #endif |
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| 8 | |
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| 9 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
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| 10 | // assume_abstract_class.hpp: |
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| 11 | |
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| 12 | // (C) Copyright 2008 Robert Ramey |
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| 13 | // Use, modification and distribution is subject to the Boost Software |
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| 14 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 15 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 16 | |
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| 17 | // See http://www.boost.org for updates, documentation, and revision history. |
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| 18 | |
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| 19 | // this is useful for compilers which don't support the boost::is_abstract |
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| 20 | |
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| 21 | #include <boost/type_traits/is_abstract.hpp> |
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| 22 | |
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| 23 | #ifndef BOOST_NO_IS_ABSTRACT |
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| 24 | |
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| 25 | // if there is an intrinsic is_abstract defined, we don't have to do anything |
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| 26 | #define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T) |
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| 27 | |
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| 28 | // but forward to the "official" is_abstract |
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| 29 | namespace boost { |
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| 30 | namespace serialization { |
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| 31 | template<class T> |
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| 32 | struct is_abstract : boost::is_abstract< T > {} ; |
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| 33 | } // namespace serialization |
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| 34 | } // namespace boost |
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| 35 | |
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| 36 | #else |
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| 37 | // we have to "make" one |
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| 38 | |
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| 39 | namespace boost { |
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| 40 | namespace serialization { |
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| 41 | template<class T> |
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| 42 | struct is_abstract : boost::false_type {}; |
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| 43 | } // namespace serialization |
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| 44 | } // namespace boost |
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| 45 | |
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| 46 | // define a macro to make explicit designation of this more transparent |
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| 47 | #define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T) \ |
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| 48 | namespace boost { \ |
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| 49 | namespace serialization { \ |
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| 50 | template<> \ |
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| 51 | struct is_abstract< T > : boost::true_type {}; \ |
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| 52 | template<> \ |
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| 53 | struct is_abstract< const T > : boost::true_type {}; \ |
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| 54 | }} \ |
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| 55 | /**/ |
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| 56 | |
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| 57 | #endif // BOOST_NO_IS_ABSTRACT |
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| 58 | |
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| 59 | #endif //BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP |
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| 60 | |
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