// 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 CV_CATEGORY_DWA200222_HPP

# define CV_CATEGORY_DWA200222_HPP

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

namespace boost { namespace python { namespace detail {

template <bool is_const_, bool is_volatile_>

struct cv_tag

{

BOOST_STATIC_CONSTANT(bool, is_const = is_const_);

BOOST_STATIC_CONSTANT(bool, is_volatile = is_volatile_);

};

typedef cv_tag<false,false> cv_unqualified;

typedef cv_tag<true,false> const_;

typedef cv_tag<false,true> volatile_;

typedef cv_tag<true,true> const_volatile_;

template <class T>

struct cv_category

{

// BOOST_STATIC_CONSTANT(bool, c = is_const<T>::value);

// BOOST_STATIC_CONSTANT(bool, v = is_volatile<T>::value);

typedef cv_tag<

is_const<T>::value

, is_volatile<T>::value

> type;

};

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

#endif // CV_CATEGORY_DWA200222_HPP