boost/fusion/support/detail/access.hpp
/*=============================================================================
Copyright (c) 2001-2006 Joel de Guzman
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)
==============================================================================*/
#if !defined(FUSION_ACCESS_04182005_0737)
#define FUSION_ACCESS_04182005_0737
#include <boost/type_traits/add_const.hpp>
#include <boost/type_traits/add_reference.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename T>
struct ref_result
{
typedef typename add_reference<typename T::type>::type type;
};
template <typename T>
struct cref_result
{
typedef typename
add_reference<
typename add_const<typename T::type>::type
>::type
type;
};
template <typename T>
struct call_param
{
typedef T const& type;
};
template <typename T>
struct call_param<T &>
{
typedef T& type;
};
template <typename T>
struct call_param<T const>
{
typedef T const& type;
};
template <typename T>
struct call_param<T volatile>
{
typedef T const& type;
};
template <typename T>
struct call_param<T const volatile>
{
typedef T const& type;
};
}}}
#endif
