comparison DEPENDENCIES/generic/include/boost/geometry/algorithms/num_geometries.hpp @ 16:2665513ce2d3

Add boost headers

+// Boost.Geometry (aka GGL, Generic Geometry Library)
+
+// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
+// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
+// Copyright (c) 2009-2012 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_NUM_GEOMETRIES_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_NUM_GEOMETRIES_HPP
+
+#include <cstddef>
+
+#include <boost/geometry/algorithms/not_implemented.hpp>
+
+#include <boost/geometry/core/tag.hpp>
+#include <boost/geometry/core/tags.hpp>
+#include <boost/geometry/core/tag_cast.hpp>
+
+#include <boost/geometry/geometries/concepts/check.hpp>
+
+
+namespace boost { namespace geometry
+{
+
+
+#ifndef DOXYGEN_NO_DISPATCH
+namespace dispatch
+{
+
+
+template
+<
+    typename Geometry,
+    typename Tag = typename tag_cast
+                            <
+                                typename tag<Geometry>::type,
+                                single_tag,
+                                multi_tag
+                            >::type
+>
+struct num_geometries: not_implemented<Tag>
+{};
+
+
+template <typename Geometry>
+struct num_geometries<Geometry, single_tag>
+{
+    static inline std::size_t apply(Geometry const&)
+    {
+        return 1;
+    }
+};
+
+
+
+} // namespace dispatch
+#endif
+
+
+/*!
+\brief \brief_calc{number of geometries}
+\ingroup num_geometries
+\details \details_calc{num_geometries, number of geometries}.
+\tparam Geometry \tparam_geometry
+\param geometry \param_geometry
+\return \return_calc{number of geometries}
+
+\qbk{[include reference/algorithms/num_geometries.qbk]}
+*/
+template <typename Geometry>
+inline std::size_t num_geometries(Geometry const& geometry)
+{
+    concept::check<Geometry const>();
+
+    return dispatch::num_geometries<Geometry>::apply(geometry);
+}
+
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_NUM_GEOMETRIES_HPP