Added boost header

test/external/boost/geometry/algorithms/unique.hpp

@@ -0,0 +1,153 @@
+// 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_UNIQUE_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_UNIQUE_HPP
+
+#include <algorithm>
+
+#include <boost/range.hpp>
+#include <boost/typeof/typeof.hpp>
+
+#include <boost/geometry/core/interior_rings.hpp>
+#include <boost/geometry/core/mutable_range.hpp>
+#include <boost/geometry/geometries/concepts/check.hpp>
+#include <boost/geometry/policies/compare.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail { namespace unique
+{
+
+
+template <typename Range, typename ComparePolicy>
+struct range_unique
+{
+    static inline void apply(Range& range, ComparePolicy const& policy)
+    {
+        typename boost::range_iterator<Range>::type it
+            = std::unique
+                (
+                    boost::begin(range),
+                    boost::end(range),
+                    policy
+                );
+
+        traits::resize<Range>::apply(range, it - boost::begin(range));
+    }
+};
+
+
+template <typename Polygon, typename ComparePolicy>
+struct polygon_unique
+{
+    static inline void apply(Polygon& polygon, ComparePolicy const& policy)
+    {
+        typedef typename geometry::ring_type<Polygon>::type ring_type;
+
+        typedef range_unique<ring_type, ComparePolicy> per_range;
+        per_range::apply(exterior_ring(polygon), policy);
+
+        typename interior_return_type<Polygon>::type rings
+                    = interior_rings(polygon);
+        for (BOOST_AUTO_TPL(it, boost::begin(rings)); it != boost::end(rings); ++it)
+        {
+            per_range::apply(*it, policy);
+        }
+    }
+};
+
+
+
+}} // namespace detail::unique
+#endif // DOXYGEN_NO_DETAIL
+
+
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch
+{
+
+
+template
+<
+    typename Tag,
+    typename Geometry,
+    typename ComparePolicy
+>
+struct unique
+{
+    static inline void apply(Geometry&, ComparePolicy const& )
+    {}
+};
+
+
+template <typename Ring, typename ComparePolicy>
+struct unique<ring_tag, Ring, ComparePolicy>
+    : detail::unique::range_unique<Ring, ComparePolicy>
+{};
+
+
+template <typename LineString, typename ComparePolicy>
+struct unique<linestring_tag, LineString, ComparePolicy>
+    : detail::unique::range_unique<LineString, ComparePolicy>
+{};
+
+
+template <typename Polygon, typename ComparePolicy>
+struct unique<polygon_tag, Polygon, ComparePolicy>
+    : detail::unique::polygon_unique<Polygon, ComparePolicy>
+{};
+
+
+} // namespace dispatch
+#endif
+
+
+/*!
+\brief \brief_calc{minimal set}
+\ingroup unique
+\details \details_calc{unique,minimal set (where duplicate consecutive points are removed)}.
+\tparam Geometry \tparam_geometry
+\param geometry \param_geometry which will be made unique
+
+\qbk{[include reference/algorithms/unique.qbk]}
+*/
+template <typename Geometry>
+inline void unique(Geometry& geometry)
+{
+    concept::check<Geometry>();
+
+    // Default strategy is the default point-comparison policy
+    typedef geometry::equal_to
+        <
+            typename geometry::point_type<Geometry>::type
+        > policy;
+
+
+    dispatch::unique
+        <
+            typename tag<Geometry>::type,
+            Geometry,
+            policy
+        >::apply(geometry, policy());
+}
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_UNIQUE_HPP