/usr/include/CGAL/Intersection_traits_2.h is in libcgal-dev 4.5-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | // Copyright (c) 2011 GeometryFactory (France). All rights reserved.
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Philipp Möller
#ifndef CGAL_INTERSECTION_TRAITS_2_H
#define CGAL_INTERSECTION_TRAITS_2_H
#include <CGAL/Intersection_traits.h>
#include <boost/variant.hpp>
#include <boost/optional.hpp>
#include <vector>
#if !(CGAL_INTERSECTION_VERSION < 2)
namespace CGAL {
CGAL_INTERSECTION_TRAITS_2(Line_2, Line_2, Point_2, Line_2)
CGAL_INTERSECTION_TRAITS_2(Segment_2, Line_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Line_2, Segment_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Segment_2, Segment_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Ray_2, Line_2, Point_2, Ray_2)
CGAL_INTERSECTION_TRAITS_2(Line_2, Ray_2, Point_2, Ray_2)
CGAL_INTERSECTION_TRAITS_2(Ray_2, Segment_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Segment_2, Ray_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_3(Ray_2, Ray_2, Point_2, Segment_2, Ray_2)
CGAL_INTERSECTION_TRAITS_2(Triangle_2, Line_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Line_2, Triangle_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Triangle_2, Segment_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Segment_2, Triangle_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Triangle_2, Ray_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Ray_2, Triangle_2, Point_2, Segment_2)
template<typename K>
struct Intersection_traits<K, typename K::Triangle_2, typename K::Triangle_2> {
typedef typename
boost::variant< typename K::Point_2, typename K::Segment_2,
typename K::Triangle_2, typename std::vector< typename K::Point_2 > > variant_type;
typedef typename boost::optional< variant_type > result_type;
};
CGAL_INTERSECTION_TRAITS_2(Iso_rectangle_2, Line_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Line_2, Iso_rectangle_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Iso_rectangle_2, Segment_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Segment_2, Iso_rectangle_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Iso_rectangle_2, Ray_2, Point_2, Segment_2)
CGAL_INTERSECTION_TRAITS_2(Ray_2, Iso_rectangle_2, Point_2, Segment_2)
// undocumented
// Variants of one for backwards compatibility
template<typename K>
struct Intersection_traits<K, typename K::Iso_rectangle_2, typename K::Iso_rectangle_2> {
typedef typename boost::variant<typename K::Iso_rectangle_2> variant_type;
typedef boost::optional<variant_type> result_type;
};
// Point_2 is special
template<typename K, typename B>
struct Intersection_traits<K, typename K::Point_2, B> {
typedef typename boost::variant<typename K::Point_2> variant_type;
typedef boost::optional<variant_type> result_type;
};
template<typename K, typename A>
struct Intersection_traits<K, A, typename K::Point_2> {
typedef typename boost::variant<typename K::Point_2> variant_type;
typedef boost::optional<variant_type> result_type;
};
template<typename K>
struct Intersection_traits<K, typename K::Iso_rectangle_2, typename K::Triangle_2>
{
typedef typename boost::variant<typename K::Segment_2, typename K::Triangle_2,
typename K::Point_2,
typename std::vector< typename K::Point_2 > > variant_type;
typedef typename boost::optional < variant_type > result_type;
};
template<typename K>
struct Intersection_traits<K, typename K::Triangle_2, typename K::Iso_rectangle_2>
: public Intersection_traits<K, typename K::Iso_rectangle_2, typename K::Triangle_2> {};
} // namespace CGAL
#endif
#endif /* CGAL_INTERSECTION_TRAITS_2_H */
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