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// (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/type_traits/detail/template_arity_spec.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))
};
}
BOOST_TT_AUX_TEMPLATE_ARITY_SPEC(1,function_types::function_arity)
}
#endif
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