algorithms/detail/multi_sum.hpp

0001 // Boost.Geometry (aka GGL, Generic Geometry Library)
0002
0003 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
0004 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
0005 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
0006
0007 // This file was modified by Oracle on 2020.
0008 // Modifications copyright (c) 2020 Oracle and/or its affiliates.
0009 // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
0010
0011 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
0012 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
0013
0014 // Use, modification and distribution is subject to the Boost Software License,
0015 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
0016 // http://www.boost.org/LICENSE_1_0.txt)
0017
0018 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP
0019 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP
0020
0021 #include <boost/range/begin.hpp>
0022 #include <boost/range/end.hpp>
0023
0024
0025 namespace boost { namespace geometry
0026 {
0027 #ifndef DOXYGEN_NO_DETAIL
0028 namespace detail
0029 {
0030
0031 struct multi_sum
0032 {
0033     template <typename ReturnType, typename Policy, typename MultiGeometry, typename Strategy>
0034     static inline ReturnType apply(MultiGeometry const& multi, Strategy const& strategy)
0035     {
0036         ReturnType sum = ReturnType();
0037         for (auto it = boost::begin(multi); it != boost::end(multi); ++it)
0038         {
0039             sum += Policy::apply(*it, strategy);
0040         }
0041         return sum;
0042     }
0043 };
0044
0045
0046 } // namespace detail
0047 #endif
0048
0049 }} // namespace boost::geometry
0050
0051
0052 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP