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#if !defined(BOOST_PP_IS_ITERATING)
// 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 SIGNATURE_DWA20021121_HPP
# define SIGNATURE_DWA20021121_HPP
# include <boost/python/type_id.hpp>
# include <boost/python/detail/preprocessor.hpp>
# include <boost/python/detail/indirect_traits.hpp>
# include <boost/preprocessor/iterate.hpp>
# include <boost/preprocessor/iteration/local.hpp>
# include <boost/mpl/at.hpp>
# include <boost/mpl/size.hpp>
namespace boost { namespace python { namespace detail {
struct signature_element
{
char const* basename;
bool lvalue;
};
template <unsigned> struct signature_arity;
# define BOOST_PP_ITERATION_PARAMS_1 \
(3, (0, BOOST_PYTHON_MAX_ARITY + 1, <boost/python/detail/signature.hpp>))
# include BOOST_PP_ITERATE()
// A metafunction returning the base class used for
//
// signature<class F, class CallPolicies, class Sig>.
//
template <class Sig>
struct signature_base_select
{
enum { arity = mpl::size<Sig>::value - 1 };
typedef typename signature_arity<arity>::template impl<Sig> type;
};
template <class Sig>
struct signature
: signature_base_select<Sig>::type
{
};
}}} // namespace boost::python::detail
# endif // SIGNATURE_DWA20021121_HPP
#else
# define N BOOST_PP_ITERATION()
template <>
struct signature_arity<N>
{
template <class Sig>
struct impl
{
static signature_element const* elements()
{
static signature_element const result[N+2] = {
# define BOOST_PP_LOCAL_MACRO(i) \
{ \
type_id<BOOST_DEDUCED_TYPENAME mpl::at_c<Sig,i>::type>().name() \
, indirect_traits::is_reference_to_non_const<BOOST_DEDUCED_TYPENAME mpl::at_c<Sig,i>::type>::value \
},
# define BOOST_PP_LOCAL_LIMITS (0, N)
# include BOOST_PP_LOCAL_ITERATE()
{0,0}
};
return result;
}
};
};
#endif // BOOST_PP_IS_ITERATING
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