// (C) Copyright Tobias Schwinger

//

// Use modification and distribution are subject to the boost Software License,

// Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt).

//------------------------------------------------------------------------------

#ifndef BOOST_FT_FUNCTION_ARITY_HPP_INCLUDED

#define BOOST_FT_FUNCTION_ARITY_HPP_INCLUDED

#include <boost/blank.hpp>

#include <boost/mpl/if.hpp>

#include <boost/mpl/aux_/lambda_support.hpp>

#include <boost/function_types/is_callable_builtin.hpp>

#include <boost/function_types/components.hpp>

namespace boost

{

namespace function_types

{

template<typename T> struct function_arity

: mpl::if_

< function_types::is_callable_builtin<T>

, typename components<T>::function_arity, boost::blank

>::type

{

BOOST_MPL_AUX_LAMBDA_SUPPORT(1,function_arity,(T))

};

}

}

#endif