Chris@16: // Copyright David Abrahams 2004. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef UNWRAP_WRAPPER_DWA2004723_HPP
Chris@16: # define UNWRAP_WRAPPER_DWA2004723_HPP
Chris@16: 
Chris@16: # include <boost/python/detail/prefix.hpp>
Chris@16: # include <boost/python/detail/is_wrapper.hpp>
Chris@16: # include <boost/mpl/eval_if.hpp>
Chris@16: # include <boost/mpl/identity.hpp>
Chris@16: 
Chris@16: namespace boost { namespace python { namespace detail { 
Chris@16: 
Chris@16: template <class T>
Chris@16: struct unwrap_wrapper_helper
Chris@16: {
Chris@16:     typedef typename T::_wrapper_wrapped_type_ type;
Chris@16: };
Chris@16: 
Chris@16: template <class T>
Chris@16: struct unwrap_wrapper_
Chris@16:   : mpl::eval_if<is_wrapper<T>,unwrap_wrapper_helper<T>,mpl::identity<T> >
Chris@16: {};
Chris@16: 
Chris@16: template <class T>
Chris@16: typename unwrap_wrapper_<T>::type*
Chris@16: unwrap_wrapper(T*)
Chris@16: {
Chris@16:     return 0;
Chris@16: }
Chris@16: 
Chris@16: }}} // namespace boost::python::detail
Chris@16: 
Chris@16: #endif // UNWRAP_WRAPPER_DWA2004723_HPP