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1 #ifndef INDIRECT_REFERENCE_DWA200415_HPP |
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2 # define INDIRECT_REFERENCE_DWA200415_HPP |
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3 |
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4 // |
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5 // Copyright David Abrahams 2004. Use, modification and distribution is |
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6 // subject to the Boost Software License, Version 1.0. (See accompanying |
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7 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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8 // |
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9 // typename indirect_reference<P>::type provides the type of *p. |
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10 // |
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11 // http://www.boost.org/libs/iterator/doc/pointee.html |
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12 // |
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13 |
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14 # include <boost/detail/is_incrementable.hpp> |
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15 # include <boost/iterator/iterator_traits.hpp> |
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16 # include <boost/type_traits/remove_cv.hpp> |
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17 # include <boost/mpl/eval_if.hpp> |
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18 # include <boost/pointee.hpp> |
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19 |
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20 namespace boost { |
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21 |
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22 namespace detail |
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23 { |
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24 template <class P> |
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25 struct smart_ptr_reference |
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26 { |
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27 typedef typename boost::pointee<P>::type& type; |
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28 }; |
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29 } |
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30 |
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31 template <class P> |
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32 struct indirect_reference |
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33 : mpl::eval_if< |
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34 detail::is_incrementable<P> |
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35 , iterator_reference<P> |
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36 , detail::smart_ptr_reference<P> |
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37 > |
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38 { |
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39 }; |
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40 |
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41 } // namespace boost |
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42 |
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43 #endif // INDIRECT_REFERENCE_DWA200415_HPP |