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59 lines
1.9 KiB
59 lines
1.9 KiB
#ifndef BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP |
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#define BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP |
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// MS compatible compilers support #pragma once |
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#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
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# pragma once |
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#endif |
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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
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// assume_abstract_class.hpp: |
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// (C) Copyright 2008 Robert Ramey |
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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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// See http://www.boost.org for updates, documentation, and revision history. |
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// this is useful for compilers which don't support the boost::is_abstract |
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#include <boost/type_traits/is_abstract.hpp> |
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#ifndef BOOST_NO_IS_ABSTRACT |
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// if there is an intrinsic is_abstract defined, we don't have to do anything |
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#define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T) |
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// but forward to the "official" is_abstract |
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namespace boost { |
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namespace serialization { |
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template<class T> |
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struct is_abstract : boost::is_abstract< T > {} ; |
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} // namespace serialization |
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} // namespace boost |
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#else |
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// we have to "make" one |
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namespace boost { |
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namespace serialization { |
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template<class T> |
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struct is_abstract : boost::false_type {}; |
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} // namespace serialization |
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} // namespace boost |
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// define a macro to make explicit designation of this more transparent |
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#define BOOST_SERIALIZATION_ASSUME_ABSTRACT(T) \ |
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namespace boost { \ |
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namespace serialization { \ |
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template<> \ |
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struct is_abstract< T > : boost::true_type {}; \ |
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template<> \ |
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struct is_abstract< const T > : boost::true_type {}; \ |
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}} \ |
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/**/ |
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#endif // BOOST_NO_IS_ABSTRACT |
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#endif //BOOST_SERIALIZATION_ASSUME_ABSTRACT_HPP
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