Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2006-2007 Tobias Schwinger
Chris@16:   
Chris@16:     Use modification and distribution are subject to the Boost Software 
Chris@16:     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:     http://www.boost.org/LICENSE_1_0.txt).
Chris@16: ==============================================================================*/
Chris@16: 
Chris@16: #if !defined(BOOST_FUSION_FUNCTIONAL_ADAPTER_DETAIL_ACCESS_HPP_INCLUDED)
Chris@16: #define BOOST_FUSION_FUNCTIONAL_ADAPTER_DETAIL_ACCESS_HPP_INCLUDED
Chris@16: 
Chris@16: namespace boost { namespace fusion { namespace detail
Chris@16: {
Chris@16:     // const reference deduction for function templates that accept T const &
Chris@16:     template <typename T> struct cref               { typedef T const& type; };
Chris@16:     template <typename T> struct cref<T&>           { typedef T const& type; };
Chris@16:     template <typename T> struct cref<T const>      { typedef T const& type; };
Chris@16: 
Chris@16:     // mutable reference deduction for function templates that accept T &
Chris@16:     template <typename T> struct mref               { typedef T      & type; };
Chris@16:     template <typename T> struct mref<T&>           { typedef T      & type; };
Chris@16: 
Chris@16:     // generic reference deduction for function templates that are overloaded
Chris@16:     // to accept both T const & and T &
Chris@16:     template <typename T> struct gref               { typedef T const& type; };
Chris@16:     template <typename T> struct gref<T&>           { typedef T      & type; };
Chris@16:     template <typename T> struct gref<T const>      { typedef T const& type; };
Chris@16: 
Chris@16:     // appropriately qualified target function in const context
Chris@16:     template <typename T> struct qf_c          { typedef T const  type; };
Chris@16:     template <typename T> struct qf_c<T const> { typedef T const  type; };
Chris@16:     template <typename T> struct qf_c<T &>     { typedef T        type; };
Chris@16: 
Chris@16:     // appropriately qualified target function in non-const context
Chris@16:     template <typename T> struct qf            { typedef T        type; };
Chris@16:     template <typename T> struct qf<T const>   { typedef T const  type; };
Chris@16:     template <typename T> struct qf<T &>       { typedef T        type; };
Chris@16: }}}
Chris@16: 
Chris@16: #endif
Chris@16: