variant.hpp 1.2 KB

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  1. // Boost.Geometry (aka GGL, Generic Geometry Library)
  2. // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
  3. // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
  4. // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
  5. // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
  6. // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
  7. // Use, modification and distribution is subject to the Boost Software License,
  8. // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  9. // http://www.boost.org/LICENSE_1_0.txt)
  10. #ifndef BOOST_GEOMETRY_GEOMETRIES_VARIANT_GEOMETRY_HPP
  11. #define BOOST_GEOMETRY_GEOMETRIES_VARIANT_GEOMETRY_HPP
  12. #include <boost/variant/variant_fwd.hpp>
  13. #include <boost/mpl/front.hpp>
  14. namespace boost { namespace geometry {
  15. template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
  16. struct point_type<boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
  17. : point_type<
  18. typename boost::mpl::front<
  19. typename boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>::types
  20. >::type
  21. >
  22. {};
  23. } // namespace geometry
  24. } // namespace boost
  25. #endif // BOOST_GEOMETRY_GEOMETRIES_VARIANT_GEOMETRY_HPP