Boost_1_39_0/boost/python/manage_new_object.hpp

   1 // Copyright David Abrahams 2002.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 #ifndef MANAGE_NEW_OBJECT_DWA200222_HPP
   6 # define MANAGE_NEW_OBJECT_DWA200222_HPP
   7
   8 # include <boost/python/detail/prefix.hpp>
   9 # include <boost/python/detail/indirect_traits.hpp>
  10 # include <boost/mpl/if.hpp>
  11 # include <boost/python/to_python_indirect.hpp>
  12 # include <boost/type_traits/composite_traits.hpp>
  13
  14 namespace boost { namespace python {
  15
  16 namespace detail
  17 {
  18   template <class R>
  19   struct manage_new_object_requires_a_pointer_return_type
  20 # if defined(__GNUC__) && __GNUC__ >= 3 || defined(__EDG__)
  21   {}
  22 # endif
  23   ;
  24 }
  25
  26 struct manage_new_object
  27 {
  28     template <class T>
  29     struct apply
  30     {
  31         typedef typename mpl::if_c<
  32             boost::is_pointer<T>::value
  33             , to_python_indirect<T, detail::make_owning_holder>
  34             , detail::manage_new_object_requires_a_pointer_return_type<T>
  35         >::type type;
  36     };
  37 };
  38
  39 }} // namespace boost::python
  40
  41 #endif // MANAGE_NEW_OBJECT_DWA200222_HPP