Added boost header

test/external/boost/geometry/strategies/concepts/convex_hull_concept.hpp

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+// 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_STRATEGIES_CONCEPTS_CONVEX_HULL_CONCEPT_HPP
+#define BOOST_GEOMETRY_STRATEGIES_CONCEPTS_CONVEX_HULL_CONCEPT_HPP
+
+
+#include <vector>
+
+#include <boost/concept_check.hpp>
+
+
+namespace boost { namespace geometry { namespace concept
+{
+
+
+/*!
+    \brief Checks strategy for convex_hull
+    \ingroup convex_hull
+*/
+template <typename Strategy>
+class ConvexHullStrategy
+{
+#ifndef DOXYGEN_NO_CONCEPT_MEMBERS
+
+    // 1) must define state_type
+    typedef typename Strategy::state_type state_type;
+
+    // 2) must define point_type
+    typedef typename Strategy::point_type point_type;
+
+    // 3) must define geometry_type
+    typedef typename Strategy::geometry_type geometry_type;
+
+    struct check_methods
+    {
+        static void apply()
+        {
+            Strategy const* str;
+
+            state_type* st;
+            geometry_type* sp;
+            std::vector<point_type> *v;
+
+            // 4) must implement a method apply, iterating over a range
+            str->apply(*sp, *st);
+
+            // 5) must implement a method result, with an output iterator
+            str->result(*st, std::back_inserter(*v), true);
+        }
+    };
+
+public :
+    BOOST_CONCEPT_USAGE(ConvexHullStrategy)
+    {
+        check_methods::apply();
+    }
+#endif
+};
+
+
+}}} // namespace boost::geometry::concept
+
+
+#endif // BOOST_GEOMETRY_STRATEGIES_CONCEPTS_CONVEX_HULL_CONCEPT_HPP