forked from boostorg/fusion
38 lines
1.8 KiB
C++
38 lines
1.8 KiB
C++
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/*=============================================================================
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Copyright (c) 2006-2007 Tobias Schwinger
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Use modification and distribution are 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(BOOST_FUSION_FUNCTIONAL_ADAPTER_DETAIL_ACCESS_HPP_INCLUDED)
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#define BOOST_FUSION_FUNCTIONAL_ADAPTER_DETAIL_ACCESS_HPP_INCLUDED
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namespace boost { namespace fusion { namespace detail
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{
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// const reference deduction for function templates that accept T const &
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template <typename T> struct cref { typedef T const& type; };
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template <typename T> struct cref<T&> { typedef T const& type; };
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template <typename T> struct cref<T const> { typedef T const& type; };
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// mutable reference deduction for function templates that accept T &
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template <typename T> struct mref { typedef T & type; };
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template <typename T> struct mref<T&> { typedef T & type; };
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// generic reference deduction for function templates that are overloaded
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// to accept both T const & and T &
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template <typename T> struct gref { typedef T const& type; };
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template <typename T> struct gref<T&> { typedef T & type; };
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template <typename T> struct gref<T const> { typedef T const& type; };
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// boost::result_of to Fusion PFO parameter
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template <typename T> struct r2fp { typedef T const type; };
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template <typename T> struct r2fp<T const> { typedef T const type; };
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template <typename T> struct r2fp<T &> { typedef T type; };
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}}}
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#endif
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