forked from boostorg/fusion
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2006 Joel de Guzman
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Use, modification and distribution is subject to the Boost Software
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License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(FUSION_ACCESS_04182005_0737)
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#define FUSION_ACCESS_04182005_0737
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#include <boost/mpl/eval_if.hpp>
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#include <boost/mpl/identity.hpp>
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#include <boost/type_traits/add_const.hpp>
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#include <boost/type_traits/add_reference.hpp>
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#include <boost/type_traits/is_reference.hpp>
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#include <boost/type_traits/remove_cv.hpp>
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namespace boost { namespace fusion { namespace detail
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{
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template <typename T>
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struct ref_result
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{
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typedef typename add_reference<typename T::type>::type type;
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};
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template <typename T>
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struct cref_result
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{
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typedef typename
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add_reference<
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typename add_const<typename T::type>::type
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>::type
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type;
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};
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template <typename T>
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struct non_ref_parameter
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{
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typedef typename boost::remove_cv<T>::type const& type;
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};
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template <typename T>
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struct call_param
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{
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typedef typename
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mpl::eval_if<
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is_reference<T>
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, mpl::identity<T>
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, non_ref_parameter<T>
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>::type
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type;
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};
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}}}
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#endif
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