Added boost header

test/external/boost/geometry/algorithms/detail/disjoint.hpp

@@ -0,0 +1,225 @@
+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2011 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2011 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
+
+// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
+// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
+
+// Use, modification and distribution is subject to the Boost Software License,
+// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISJOINT_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISJOINT_HPP
+
+// Note: contrary to most files, the geometry::detail::disjoint namespace
+// is partly implemented in a separate file, to avoid circular references
+// disjoint -> get_turns -> disjoint
+
+#include <cstddef>
+
+#include <boost/range.hpp>
+
+#include <boost/geometry/core/access.hpp>
+#include <boost/geometry/core/coordinate_dimension.hpp>
+#include <boost/geometry/core/reverse_dispatch.hpp>
+
+
+#include <boost/geometry/util/math.hpp>
+
+
+
+namespace boost { namespace geometry
+{
+
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail { namespace disjoint
+{
+
+
+struct disjoint_interrupt_policy
+{
+    static bool const enabled = true;
+    bool has_intersections;
+
+    inline disjoint_interrupt_policy()
+        : has_intersections(false)
+    {}
+
+    template <typename Range>
+    inline bool apply(Range const& range)
+    {
+        // If there is any IP in the range, it is NOT disjoint
+        if (boost::size(range) > 0)
+        {
+            has_intersections = true;
+            return true;
+        }
+        return false;
+    }
+};
+
+
+
+template
+<
+    typename Point1, typename Point2,
+    std::size_t Dimension, std::size_t DimensionCount
+>
+struct point_point
+{
+    static inline bool apply(Point1 const& p1, Point2 const& p2)
+    {
+        if (! geometry::math::equals(get<Dimension>(p1), get<Dimension>(p2)))
+        {
+            return true;
+        }
+        return point_point
+            <
+                Point1, Point2,
+                Dimension + 1, DimensionCount
+            >::apply(p1, p2);
+    }
+};
+
+
+template <typename Point1, typename Point2, std::size_t DimensionCount>
+struct point_point<Point1, Point2, DimensionCount, DimensionCount>
+{
+    static inline bool apply(Point1 const& , Point2 const& )
+    {
+        return false;
+    }
+};
+
+
+template
+<
+    typename Point, typename Box,
+    std::size_t Dimension, std::size_t DimensionCount
+>
+struct point_box
+{
+    static inline bool apply(Point const& point, Box const& box)
+    {
+        if (get<Dimension>(point) < get<min_corner, Dimension>(box)
+            || get<Dimension>(point) > get<max_corner, Dimension>(box))
+        {
+            return true;
+        }
+        return point_box
+            <
+                Point, Box,
+                Dimension + 1, DimensionCount
+            >::apply(point, box);
+    }
+};
+
+
+template <typename Point, typename Box, std::size_t DimensionCount>
+struct point_box<Point, Box, DimensionCount, DimensionCount>
+{
+    static inline bool apply(Point const& , Box const& )
+    {
+        return false;
+    }
+};
+
+
+template
+<
+    typename Box1, typename Box2,
+    std::size_t Dimension, std::size_t DimensionCount
+>
+struct box_box
+{
+    static inline bool apply(Box1 const& box1, Box2 const& box2)
+    {
+        if (get<max_corner, Dimension>(box1) < get<min_corner, Dimension>(box2))
+        {
+            return true;
+        }
+        if (get<min_corner, Dimension>(box1) > get<max_corner, Dimension>(box2))
+        {
+            return true;
+        }
+        return box_box
+            <
+                Box1, Box2,
+                Dimension + 1, DimensionCount
+            >::apply(box1, box2);
+    }
+};
+
+
+template <typename Box1, typename Box2, std::size_t DimensionCount>
+struct box_box<Box1, Box2, DimensionCount, DimensionCount>
+{
+    static inline bool apply(Box1 const& , Box2 const& )
+    {
+        return false;
+    }
+};
+
+
+
+/*!
+    \brief Internal utility function to detect of boxes are disjoint
+    \note Is used from other algorithms, declared separately
+        to avoid circular references
+ */
+template <typename Box1, typename Box2>
+inline bool disjoint_box_box(Box1 const& box1, Box2 const& box2)
+{
+    return box_box
+        <
+            Box1, Box2,
+            0, dimension<Box1>::type::value
+        >::apply(box1, box2);
+}
+
+
+
+/*!
+    \brief Internal utility function to detect of points are disjoint
+    \note To avoid circular references
+ */
+template <typename Point1, typename Point2>
+inline bool disjoint_point_point(Point1 const& point1, Point2 const& point2)
+{
+    return point_point
+        <
+            Point1, Point2,
+            0, dimension<Point1>::type::value
+        >::apply(point1, point2);
+}
+
+
+}} // namespace detail::disjoint
+#endif // DOXYGEN_NO_DETAIL
+
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail { namespace equals
+{
+
+/*!
+    \brief Internal utility function to detect of points are disjoint
+    \note To avoid circular references
+ */
+template <typename Point1, typename Point2>
+inline bool equals_point_point(Point1 const& point1, Point2 const& point2)
+{
+    return ! detail::disjoint::disjoint_point_point(point1, point2);
+}
+
+
+}} // namespace detail::equals
+#endif // DOXYGEN_NO_DETAIL
+
+}} // namespace boost::geometry
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_DISJOINT_HPP