python/include/boost/python/detail/unwrap_wrapper.hpp at python313 · boostorg/python · GitHub

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// Copyright David Abrahams 2004. 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 UNWRAP_WRAPPER_DWA2004723_HPP

# define UNWRAP_WRAPPER_DWA2004723_HPP

# include <boost/python/detail/prefix.hpp>

# include <boost/python/detail/is_wrapper.hpp>

# include <boost/mpl/eval_if.hpp>

# include <boost/mpl/identity.hpp>

namespace boost { namespace python { namespace detail {

template <class T>

struct unwrap_wrapper_helper

{

typedef typename T::_wrapper_wrapped_type_ type;

};

template <class T>

struct unwrap_wrapper_

: mpl::eval_if<is_wrapper<T>,unwrap_wrapper_helper<T>,mpl::identity<T> >

{};

template <class T>

typename unwrap_wrapper_<T>::type*

unwrap_wrapper(T*)

{

return 0;

}

}}} // namespace boost::python::detail

#endif // UNWRAP_WRAPPER_DWA2004723_HPP

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