--- /dev/null
+// 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_DETAIL_MULTI_SUM_HPP
+#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP
+
+#include <boost/range.hpp>
+
+
+namespace boost { namespace geometry
+{
+#ifndef DOXYGEN_NO_DETAIL
+namespace detail
+{
+
+struct multi_sum
+{
+ template <typename ReturnType, typename Policy, typename MultiGeometry, typename Strategy>
+ static inline ReturnType apply(MultiGeometry const& geometry, Strategy const& strategy)
+ {
+ ReturnType sum = ReturnType();
+ for (typename boost::range_iterator
+ <
+ MultiGeometry const
+ >::type it = boost::begin(geometry);
+ it != boost::end(geometry);
+ ++it)
+ {
+ sum += Policy::apply(*it, strategy);
+ }
+ return sum;
+ }
+};
+
+
+} // namespace detail
+#endif
+
+}} // namespace boost::geometry
+
+
+#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP