// 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 RETURN_INTERNAL_REFERENCE_DWA2002131_HPP # define RETURN_INTERNAL_REFERENCE_DWA2002131_HPP # include # include # include # include # include namespace boost { namespace python { namespace detail { template struct return_internal_reference_owner_arg_must_be_greater_than_zero # if defined(__GNUC__) || defined(__EDG__) {} # endif ; } template struct return_internal_reference : with_custodian_and_ward_postcall<0, owner_arg, BasePolicy_> { private: BOOST_STATIC_CONSTANT(bool, legal = owner_arg > 0); public: typedef typename mpl::if_c< legal , reference_existing_object , detail::return_internal_reference_owner_arg_must_be_greater_than_zero >::type result_converter; }; }} // namespace boost::python #endif // RETURN_INTERNAL_REFERENCE_DWA2002131_HPP