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1 // Boost.Geometry (aka GGL, Generic Geometry Library)
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2
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3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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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 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_RING_IDENTIFIER_HPP
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10 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_RING_IDENTIFIER_HPP
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11
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12
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13 #if defined(BOOST_GEOMETRY_DEBUG_IDENTIFIER)
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14 #include <iostream>
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15 #endif
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16
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17
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18 #include <boost/geometry/algorithms/detail/signed_index_type.hpp>
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19
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20
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21 namespace boost { namespace geometry
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22 {
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23
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24
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25 // Ring Identifier. It is currently: source,multi,ring
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26 struct ring_identifier
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27 {
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28
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29 inline ring_identifier()
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30 : source_index(-1)
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31 , multi_index(-1)
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32 , ring_index(-1)
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33 {}
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34
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35 inline ring_identifier(signed_index_type src,
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36 signed_index_type mul,
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37 signed_index_type rin)
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38 : source_index(src)
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39 , multi_index(mul)
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40 , ring_index(rin)
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41 {}
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42
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43 inline bool operator<(ring_identifier const& other) const
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44 {
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45 return source_index != other.source_index ? source_index < other.source_index
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46 : multi_index !=other.multi_index ? multi_index < other.multi_index
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47 : ring_index < other.ring_index
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48 ;
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49 }
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50
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51 inline bool operator==(ring_identifier const& other) const
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52 {
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53 return source_index == other.source_index
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54 && ring_index == other.ring_index
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55 && multi_index == other.multi_index
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56 ;
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57 }
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58
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59 #if defined(BOOST_GEOMETRY_DEBUG_IDENTIFIER)
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60 friend std::ostream& operator<<(std::ostream &os, ring_identifier const& ring_id)
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61 {
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62 os << "(s:" << ring_id.source_index;
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63 if (ring_id.ring_index >= 0) os << ", r:" << ring_id.ring_index;
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64 if (ring_id.multi_index >= 0) os << ", m:" << ring_id.multi_index;
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65 os << ")";
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66 return os;
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67 }
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68 #endif
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69
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70
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71 signed_index_type source_index;
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72 signed_index_type multi_index;
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73 signed_index_type ring_index;
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74 };
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75
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76
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77 }} // namespace boost::geometry
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78
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79
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80 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_RING_IDENTIFIER_HPP
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