// Copyright David Abrahams 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)

#ifndef VALUE_IS_XXX_DWA2003224_HPP

# define VALUE_IS_XXX_DWA2003224_HPP



# include <boost/config.hpp>

# include <boost/mpl/bool.hpp>

# include <boost/preprocessor/enum_params.hpp>



# if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)

# include <boost/type_traits/is_reference.hpp>

# include <boost/type_traits/add_reference.hpp>



#  define BOOST_PYTHON_VALUE_IS_XXX_DEF(name, qualified_name, nargs)    \

template <class X_>                                                     \

struct value_is_##name                                                  \

{                                                                       \

    typedef char yes;                                                   \

    typedef char (&no)[2];                                              \

                                                                        \

    static typename add_reference<X_>::type dummy;                      \

                                                                        \

    template < BOOST_PP_ENUM_PARAMS_Z(1, nargs, class U) >              \

    static yes test(                                                    \

       qualified_name< BOOST_PP_ENUM_PARAMS_Z(1, nargs, U) > const&, int \

    );                                                                  \

                                                                        \

    template <class U>                                                  \

    static no test(U&, ...);                                            \

                                                                        \

    BOOST_STATIC_CONSTANT(                                              \

        bool, value                                                     \

        = (sizeof(test(dummy, 0)) == sizeof(yes)));                     \

                                                                        \

    typedef mpl::bool_<value> type;                                    \

};



# else



#  include <boost/type_traits/remove_reference.hpp>

#  include <boost/type_traits/remove_cv.hpp>

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



#  define BOOST_PYTHON_VALUE_IS_XXX_DEF(name, qualified_name, nargs)    \

template <class X_>                                                     \

struct value_is_##name                                                  \

{                                                                       \

    BOOST_PYTHON_IS_XXX_DEF(name,qualified_name,nargs)                  \

    BOOST_STATIC_CONSTANT(bool, value = is_##name<                      \

                               typename remove_cv<                      \

                                  typename remove_reference<X_>::type   \

                               >::type                                  \

                           >::value);                                   \

    typedef mpl::bool_<value> type;                                    \

                                                                        \

};                                                              



# endif



#endif // VALUE_IS_XXX_DWA2003224_HPP

