liuxiaolong
2021-07-20 58d904a328c0d849769b483e901a0be9426b8209
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// Copyright David Abrahams 2002.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef MANAGE_NEW_OBJECT_DWA200222_HPP
# define MANAGE_NEW_OBJECT_DWA200222_HPP
 
# include <boost/python/detail/prefix.hpp>
# include <boost/python/detail/indirect_traits.hpp>
# include <boost/python/detail/type_traits.hpp>
# include <boost/mpl/if.hpp>
# include <boost/python/to_python_indirect.hpp>
 
namespace boost { namespace python { 
 
namespace detail
{
  template <class R>
  struct manage_new_object_requires_a_pointer_return_type
# if defined(__GNUC__) || defined(__EDG__)
  {}
# endif
  ;
}
 
struct manage_new_object
{
    template <class T>
    struct apply
    {
        typedef typename mpl::if_c<
            detail::is_pointer<T>::value
            , to_python_indirect<T, detail::make_owning_holder>
            , detail::manage_new_object_requires_a_pointer_return_type<T>
        >::type type;
    };
};
 
}} // namespace boost::python
 
#endif // MANAGE_NEW_OBJECT_DWA200222_HPP