ceph/src/boost/boost/geometry/geometries/variant.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2
   3 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
   4 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   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_GEOMETRIES_VARIANT_GEOMETRY_HPP
  15 #define BOOST_GEOMETRY_GEOMETRIES_VARIANT_GEOMETRY_HPP
  16
  17
  18 #include <boost/variant/variant_fwd.hpp>
  19 #include <boost/mpl/front.hpp>
  20
  21
  22 namespace boost { namespace geometry {
  23
  24
  25 template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
  26 struct point_type<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
  27     : point_type<
  28         typename boost::mpl::front<
  29             typename boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>::types
  30         >::type
  31     >
  32 {};
  33
  34
  35 } // namespace geometry
  36 } // namespace boost
  37
  38
  39 #endif // BOOST_GEOMETRY_GEOMETRIES_VARIANT_GEOMETRY_HPP