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 ```1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 ``` ``````// 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. // Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland. // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. // This file was modified by Oracle on 2016. // Modifications copyright (c) 2016 Oracle and/or its affiliates. // Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle // 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_CALCULATE_SUM_HPP #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_CALCULATE_SUM_HPP #include namespace boost { namespace geometry { #ifndef DOXYGEN_NO_DETAIL namespace detail { class calculate_polygon_sum { template static inline ReturnType sum_interior_rings(Rings const& rings, Strategy const& strategy) { ReturnType sum = ReturnType(0); for (typename boost::range_iterator::type it = boost::begin(rings); it != boost::end(rings); ++it) { sum += Policy::apply(*it, strategy); } return sum; } public : template static inline ReturnType apply(Polygon const& poly, Strategy const& strategy) { return Policy::apply(exterior_ring(poly), strategy) + sum_interior_rings(interior_rings(poly), strategy) ; } }; } // namespace detail #endif // DOXYGEN_NO_DETAIL }} // namespace boost::geometry #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_CALCULATE_SUM_HPP ``````