ceph/src/boost/libs/geometry/include/boost/geometry/strategies/default_strategy.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2008-2013 Bruno Lalande, Paris, France.
   4 // Copyright (c) 2007-2013 Barend Gehrels, Amsterdam, the Netherlands.
   5 // Copyright (c) 2009-2013 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_STRATEGIES_DEFAULT_STRATEGY_HPP
  15 #define BOOST_GEOMETRY_STRATEGIES_DEFAULT_STRATEGY_HPP
  16
  17
  18 namespace boost { namespace geometry
  19 {
  20
  21 // This is a strategy placeholder type, which is passed by the algorithm free
  22 // functions to the multi-stage resolving process. It's resolved into an actual
  23 // strategy type during the resolve_strategy stage, possibly depending on the
  24 // input geometry type(s). This typically happens after the resolve_variant
  25 // stage, as it needs to be based on concrete geometry types - as opposed to
  26 // variant geometry types.
  27
  28 struct default_strategy {};
  29
  30 }} // namespace boost::geometry
  31
  32
  33
  34 #endif // BOOST_GEOMETRY_STRATEGIES_DEFAULT_STRATEGY_HPP