WSJT-X/boost/boost/python/detail/unwrap_wrapper.hpp
Bill Somerville ecaa982b9f Merged latest version of the boost 1.63.0 vendor drop
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7593 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-03-02 02:45:29 +00:00

35 lines
918 B
C++

// 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