epoc32/include/stdapis/boost/serialization/level.hpp
author William Roberts <williamr@symbian.org>
Tue, 16 Mar 2010 16:12:26 +0000
branchSymbian2
changeset 2 2fe1408b6811
permissions -rw-r--r--
Final list of Symbian^2 public API header files
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#ifndef BOOST_SERIALIZATION_LEVEL_HPP
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#define BOOST_SERIALIZATION_LEVEL_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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// level.hpp:
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// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
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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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#include <boost/config.hpp>
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#include <boost/detail/workaround.hpp>
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#include <boost/type_traits/is_fundamental.hpp>
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#include <boost/type_traits/is_enum.hpp>
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#include <boost/type_traits/is_array.hpp>
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#include <boost/type_traits/is_class.hpp>
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#include <boost/type_traits/is_base_and_derived.hpp>
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#include <boost/mpl/eval_if.hpp>
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#include <boost/mpl/int.hpp>
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#include <boost/mpl/integral_c.hpp>
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#include <boost/mpl/integral_c_tag.hpp>
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#include <boost/mpl/aux_/nttp_decl.hpp>
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#include <boost/serialization/level_enum.hpp>
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namespace boost {
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namespace serialization {
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struct basic_traits;
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// default serialization implementation level
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template<class T>
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struct implementation_level {
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    template<class U>
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    struct traits_class_level {
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        typedef  BOOST_DEDUCED_TYPENAME U::level type;
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    };
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    typedef mpl::integral_c_tag tag;
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    // note: at least one compiler complained w/o the full qualification
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    // on basic traits below
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    typedef
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        BOOST_DEDUCED_TYPENAME mpl::eval_if<
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            is_base_and_derived<boost::serialization::basic_traits, T>,
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            traits_class_level<T>,
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        //else
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        BOOST_DEDUCED_TYPENAME mpl::eval_if<
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            is_fundamental<T>,
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            mpl::int_<primitive_type>,
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        //else
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        BOOST_DEDUCED_TYPENAME mpl::eval_if<
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            is_class<T>,
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            mpl::int_<object_class_info>,
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        //else
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        BOOST_DEDUCED_TYPENAME mpl::eval_if<
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            is_array<T>,
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            #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x560))
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                mpl::int_<not_serializable>,
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            #else
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                mpl::int_<object_serializable>,
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            #endif
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        //else
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        BOOST_DEDUCED_TYPENAME mpl::eval_if<
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            is_enum<T>,
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            //#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x560))
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            //    mpl::int_<not_serializable>,
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            //#else
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                mpl::int_<primitive_type>,
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            //#endif
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        //else
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            mpl::int_<not_serializable>
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        >
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        >
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        >
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        >
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        >::type type;
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        // vc 7.1 doesn't like enums here
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    BOOST_STATIC_CONSTANT(int, value = implementation_level::type::value);
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};
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template<class T, BOOST_MPL_AUX_NTTP_DECL(int, L) >
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inline bool operator>=(implementation_level<T> t, enum level_type l)
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{
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    return t.value >= (int)l;
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}
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} // namespace serialization
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} // namespace boost
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// specify the level of serialization implementation for the class
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// require that class info saved when versioning is used
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#define BOOST_CLASS_IMPLEMENTATION(T, E)                 \
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    namespace boost {                                    \
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    namespace serialization {                            \
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    template <>                                          \
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    struct implementation_level< T >                     \
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    {                                                    \
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        typedef mpl::integral_c_tag tag;                 \
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        typedef mpl::int_< E > type;                     \
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        BOOST_STATIC_CONSTANT(                           \
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            int,                                         \
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            value = implementation_level::type::value    \
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        );                                               \
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    };                                                   \
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    }                                                    \
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    }
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    /**/
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#endif // BOOST_SERIALIZATION_LEVEL_HPP