boost/python/has_back_reference.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 HAS_BACK_REFERENCE_DWA2002323_HPP
   6 # define HAS_BACK_REFERENCE_DWA2002323_HPP
   7
   8 # include <boost/python/detail/prefix.hpp>
   9 # include <boost/mpl/bool.hpp>
  10
  11 namespace boost { namespace python {
  12
  13 // traits class which users can specialize to indicate that a class
  14 // contains a back-reference to its owning PyObject*
  15 template <class T>
  16 struct has_back_reference
  17   : mpl::false_
  18 {
  19 };
  20
  21
  22 }} // namespace boost::python
  23
  24 #endif // HAS_BACK_REFERENCE_DWA2002323_HPP