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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> | |
29 | 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 |