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46 lines
1.3 KiB
46 lines
1.3 KiB
// 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 REFERENCE_EXISTING_OBJECT_DWA200222_HPP |
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# define REFERENCE_EXISTING_OBJECT_DWA200222_HPP |
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# include <boost/python/detail/prefix.hpp> |
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# include <boost/python/detail/indirect_traits.hpp> |
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# include <boost/mpl/if.hpp> |
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# include <boost/python/to_python_indirect.hpp> |
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# include <boost/type_traits/composite_traits.hpp> |
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namespace boost { namespace python { |
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namespace detail |
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{ |
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template <class R> |
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struct reference_existing_object_requires_a_pointer_or_reference_return_type |
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# if defined(__GNUC__) && __GNUC__ >= 3 || defined(__EDG__) |
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{} |
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# endif |
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; |
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} |
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template <class T> struct to_python_value; |
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struct reference_existing_object |
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{ |
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template <class T> |
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struct apply |
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{ |
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BOOST_STATIC_CONSTANT( |
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bool, ok = is_pointer<T>::value || is_reference<T>::value); |
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typedef typename mpl::if_c< |
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ok |
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, to_python_indirect<T, detail::make_reference_holder> |
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, detail::reference_existing_object_requires_a_pointer_or_reference_return_type<T> |
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>::type type; |
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}; |
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}; |
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}} // namespace boost::python |
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#endif // REFERENCE_EXISTING_OBJECT_DWA200222_HPP
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