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// Copyright David Abrahams 2002.
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// Distributed under the Boost Software License, Version 1.0. (See
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// 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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#ifndef REGISTERED_DWA2002710_HPP
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# define REGISTERED_DWA2002710_HPP
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# include <boost/python/type_id.hpp>
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# include <boost/python/converter/registry.hpp>
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# include <boost/python/converter/registrations.hpp>
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# include <boost/type_traits/transform_traits.hpp>
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# include <boost/type_traits/cv_traits.hpp>
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# include <boost/type_traits/is_void.hpp>
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# include <boost/detail/workaround.hpp>
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# include <boost/python/type_id.hpp>
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# include <boost/type.hpp>
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namespace boost {
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// You'll see shared_ptr mentioned in this header because we need to
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// note which types are shared_ptrs in their registrations, to
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// implement special shared_ptr handling for rvalue conversions.
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template <class T> class shared_ptr;
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namespace python { namespace converter {
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struct registration;
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namespace detail
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{
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template <class T>
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struct registered_base
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{
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static registration const& converters;
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};
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}
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template <class T>
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struct registered
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: detail::registered_base<
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typename add_reference<
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typename add_cv<T>::type
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>::type
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>
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{
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};
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# if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
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&& !BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1310))
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// collapses a few more types to the same static instance. MSVC7.1
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// fails to strip cv-qualification from array types in typeid. For
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// some reason we can't use this collapse there or array converters
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// will not be found.
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template <class T>
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struct registered<T&>
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: registered<T> {};
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# endif
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//
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// implementations
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//
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namespace detail
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{
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inline void
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register_shared_ptr0(...)
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{
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}
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template <class T>
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inline void
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register_shared_ptr0(shared_ptr<T>*)
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{
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registry::lookup_shared_ptr(type_id<shared_ptr<T> >());
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}
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template <class T>
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inline void
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register_shared_ptr1(T const volatile*)
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{
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detail::register_shared_ptr0((T*)0);
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}
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template <class T>
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inline registration const&
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registry_lookup2(T&(*)())
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{
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detail::register_shared_ptr1((T*)0);
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return registry::lookup(type_id<T&>());
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}
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template <class T>
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inline registration const&
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registry_lookup1(type<T>)
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{
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return registry_lookup2((T(*)())0);
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}
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inline registration const&
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registry_lookup1(type<const volatile void>)
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{
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detail::register_shared_ptr1((void*)0);
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return registry::lookup(type_id<void>());
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}
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template <class T>
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registration const& registered_base<T>::converters = detail::registry_lookup1(type<T>());
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}
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}}} // namespace boost::python::converter
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#endif // REGISTERED_DWA2002710_HPP
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