ceph/src/boost/boost/geometry/algorithms/detail/multi_sum.hpp

   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