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1 // Boost.Geometry Index
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2 //
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3 // Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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4 //
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5 // Use, modification and distribution is subject to the Boost Software License,
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6 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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7 // http://www.boost.org/LICENSE_1_0.txt)
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8
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9 #include <boost/swap.hpp>
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10 //#include <boost/type_traits/is_empty.hpp>
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11
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12 #ifndef BOOST_GEOMETRY_INDEX_DETAIL_UTILITIES_HPP
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13 #define BOOST_GEOMETRY_INDEX_DETAIL_UTILITIES_HPP
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14
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15 namespace boost { namespace geometry { namespace index { namespace detail {
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16
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17 template<class T>
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18 static inline void assign_cond(T & l, T const& r, boost::mpl::bool_<true> const&)
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19 {
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20 l = r;
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21 }
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22
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23 template<class T>
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24 static inline void assign_cond(T &, T const&, boost::mpl::bool_<false> const&) {}
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25
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26 template<class T>
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27 static inline void move_cond(T & l, T & r, boost::mpl::bool_<true> const&)
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28 {
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29 l = ::boost::move(r);
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30 }
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31
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32 template<class T>
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33 static inline void move_cond(T &, T &, boost::mpl::bool_<false> const&) {}
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34
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35 template <typename T> inline
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36 void swap_cond(T & l, T & r, boost::mpl::bool_<true> const&)
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37 {
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38 ::boost::swap(l, r);
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39 }
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40
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41 template <typename T> inline
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42 void swap_cond(T &, T &, boost::mpl::bool_<false> const&) {}
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43
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44 }}}} // namespace boost::geometry::index::detail
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45
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46 #endif // BOOST_GEOMETRY_INDEX_DETAIL_UTILITIES_HPP
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