1 // Boost.Geometry (aka GGL, Generic Geometry Library)
2 
3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
4 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
5 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
6 
7 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
8 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
9 
10 // Use, modification and distribution is subject to the Boost Software License,
11 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
12 // http://www.boost.org/LICENSE_1_0.txt)
13 
14 #ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP
15 #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP
16 
17 #include <boost/range.hpp>
18 
19 
20 namespace boost { namespace geometry
21 {
22 #ifndef DOXYGEN_NO_DETAIL
23 namespace detail
24 {
25 
26 struct multi_sum
27 {
28     template <typename ReturnType, typename Policy, typename MultiGeometry, typename Strategy>
applyboost::geometry::detail::multi_sum29     static inline ReturnType apply(MultiGeometry const& geometry, Strategy const& strategy)
30     {
31         ReturnType sum = ReturnType();
32         for (typename boost::range_iterator
33                 <
34                     MultiGeometry const
35                 >::type it = boost::begin(geometry);
36             it != boost::end(geometry);
37             ++it)
38         {
39             sum += Policy::apply(*it, strategy);
40         }
41         return sum;
42     }
43 };
44 
45 
46 } // namespace detail
47 #endif
48 
49 }} // namespace boost::geometry
50 
51 
52 #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_MULTI_SUM_HPP
53