// (C) Copyright Eric Friedman 2002-2003.

// 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)

//

// See http://www.boost.org for most recent version including documentation.

#ifndef BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED

#define BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED

#include "boost/config.hpp" // for STATIC_CONSTANT

#include "boost/variant/detail/has_trivial_move.hpp"

#include "boost/type_traits/has_nothrow_copy.hpp"

#include "boost/type_traits/has_nothrow_assign.hpp"

#include "boost/mpl/and.hpp"

#include "boost/mpl/or.hpp"

// should be the last #include

#include "boost/variant/detail/bool_trait_def.hpp"

namespace boost {

namespace detail { namespace variant {

// TRAIT: has_nothrow_move

template <typename T>

struct has_nothrow_move_impl

{

    BOOST_STATIC_CONSTANT(

        bool, value = (

            ::boost::mpl::or_<

                has_trivial_move<T>

              , ::boost::mpl::and_<

                  has_nothrow_copy<T>

                , has_nothrow_assign<T>

                >

            >::type::value

            )

        );

};

BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(

      has_nothrow_move

    , T

    , (::boost::detail::variant::has_nothrow_move_impl<T>::value)

    )

// TRAIT: has_nothrow_move_constructor

template <typename T>

struct has_nothrow_move_constructor_impl

{

    BOOST_STATIC_CONSTANT(

        bool, value = (

            ::boost::mpl::or_<

              has_nothrow_move<T>

            , has_trivial_move_constructor<T>

            , has_nothrow_copy<T>

            >::type::value

            )

        );

};

BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(

      has_nothrow_move_constructor

    , T

    , (::boost::detail::variant::has_nothrow_move_constructor_impl<T>::value)

    )

// TRAIT: has_nothrow_move_assign

template <typename T>

struct has_nothrow_move_assign_impl

{

    BOOST_STATIC_CONSTANT(

        bool, value = (

            ::boost::mpl::or_<

              has_nothrow_move<T>

            , has_trivial_move_assign<T>

            , has_nothrow_assign<T>

            >::type::value

            )

        );

};

BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(

      has_nothrow_move_assign

    , T

    , (::boost::detail::variant::has_nothrow_move_assign_impl<T>::value)

    )

}} // namespace detail::variant

BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move)

BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_constructor)

BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_assign)

} // namespace boost

#include "boost/variant/detail/bool_trait_undef.hpp"

#endif // BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED